[{"Question":"I am making a web application using Python, ReactJS , AWS lambda.\nI want to force the user to change the password after first time login . How should i do with the backend change?\nAfter resetting the password , it should redirect to normal page .\nAny help would be greatly appreciated.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":95,"Q_Id":63212878,"Users Score":1,"Answer":"In the table where you store Users, you can create a column to check whether the User is logging in the first time or not. This can be done by the following method, when the user is created, the value for the column firstLogin(of Type Date) would be set as NULL, and when the user logs in the first time, you can use a Date function to obtain the date and insert the value there.\nSo, here is the process in brief.\n\nMake a HTTP request to create an account using fetch, axios, request or whatever module you like to create an account. Route: POST \/user, with the body containing the values or data about the User. At backend, set the SQL statement to INSERT INTO User(Firstname, Lastname, Username, Password, FirstLogin) VALUES (\"RAM\", \"KUMAR\", \"ramkumar\", \"iamaverysecurepassword\", NULL);\nNow when the User logs in for the first time using your web application, make a call to the backend, using the following route: PATCH \/user, to execute the following SQL Query UPDATE User SET FirstLogin=\"{Value of Date}\" WHERE Username=\"{Your username here(ramkumar)}\";\nNow, when you have set the Date of the first login of the user, you redirect the User on your web application using document.location.href={URL to normal page}\"\nAnd then comes the condition, that if the user has not logged in the first time, how to redirect him to the password change page? You actually execute a SQL query again, to check whether it is the first time he is logging in or not. So, basically every time an action that requires the user to have logged in before, i.e, the first time. You check whether the FirstLogin column in your SQL has the value or is NULL for the corresponding user. SELECT Firstname FROM User WHERE Username={your username here(ramkumar)}; Now check the value using if statement in your code, the value for the executed SQL Query and that FirstLogin contains a date or is null.","Q_Score":0,"Tags":"python,reactjs,aws-lambda","A_Id":63213037,"CreationDate":"2020-08-02T06:00:00.000","Title":"Force Reset Password after first time login","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have issue with scraping page and getting json from it.\n<script type=\"text\/x-magento-init\"> inside is json that I'am trying to get but when I try with .find('script',{'type':'text\/x-magento-init'})I recive first json that I don't need. My question is how to find the 8th json with that same name? There is no other name\/id etc.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":24,"Q_Id":63216006,"Users Score":0,"Answer":"you need to use re.findall(), that will return to you a list of matches. Then to get the 8th element you can go by result[7]","Q_Score":0,"Tags":"python,json","A_Id":63216032,"CreationDate":"2020-08-02T12:29:00.000","Title":"Getting json from html with same name","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I need to extract common data from different websites. Like I want to scrape 100 event websites and extract the same information like event name, price, location etc. Every website has a different layout so I'm writing scraping rules by hand. There are some services like diffbot that can extract this automatically. They are using some sort of AI\/ML model. I was wondering if this can be a Named Entity task or maybe LSTM can be used.","AnswerCount":2,"Available Count":2,"Score":0.0996679946,"is_accepted":false,"ViewCount":156,"Q_Id":63228794,"Users Score":1,"Answer":"Without more details on the structure\/format of your targeted websites, it's difficult to go beyond a generic answer.\nIf these are mostly text based (ie natural text not semi structured with table and all), then it seems like a classic information extraction (IE) of named entities. LSTM is an architecture that could be used for this like the ones in spacy. Many other classic NLP libraries like stanfordNLP can also be of use (not always with deep learning).\nHow to make the choice? It will depends on the type of language in these pages. If it's more natural English, then DL models could be better. If this is a domain jargon (small dataset to learn), you might need to investigate more grammar based analysis.","Q_Score":0,"Tags":"python,machine-learning,web-scraping,nlp,named-entity-recognition","A_Id":63229451,"CreationDate":"2020-08-03T11:42:00.000","Title":"Machine Learning model to parse webpage data and extract fields","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I need to extract common data from different websites. Like I want to scrape 100 event websites and extract the same information like event name, price, location etc. Every website has a different layout so I'm writing scraping rules by hand. There are some services like diffbot that can extract this automatically. They are using some sort of AI\/ML model. I was wondering if this can be a Named Entity task or maybe LSTM can be used.","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":156,"Q_Id":63228794,"Users Score":0,"Answer":"To add to the previous response, don't forget to check if the websites you scrape have an API, which could highly reduce time spent coding, and be more reliable if the websites change their layouts.\nYou probably already checked it, but that doesn't hurt to remind this.","Q_Score":0,"Tags":"python,machine-learning,web-scraping,nlp,named-entity-recognition","A_Id":63229525,"CreationDate":"2020-08-03T11:42:00.000","Title":"Machine Learning model to parse webpage data and extract fields","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I wanna know is it possible Running two server Django and React.js together?\nevery time I should to run Backend with python manage.py run server and then I should go to Frontend and Run npm Start\nactually I have One Fullstack project with Subfolders Backend And Frontend\nmy question is we have any code to rune both servers together or Not?","AnswerCount":2,"Available Count":1,"Score":0.0996679946,"is_accepted":false,"ViewCount":616,"Q_Id":63233789,"Users Score":1,"Answer":"As I know,unfortunately,there is no way to run them both with just a line of code.This can be wrong though.","Q_Score":0,"Tags":"javascript,python,django,reactjs","A_Id":63233847,"CreationDate":"2020-08-03T16:59:00.000","Title":"how to Run Django and React server together?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have over 200 tables which need to be migrated to S3 from RDBMS with no transformations So we are planning to migrate using Glue Job. So I want to create AWS Glue Job which can be re-usable and executed using parameter values so that i can run for multiple tables at a time(Multi-threading). Is this possible anyway in AWS Glue.","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":562,"Q_Id":63237180,"Users Score":1,"Answer":"The quick answer is yes\n\nYou can reuse a singular glue job that can be resued where you can pass your source location and target database table name as job arguments to the glue job\nYour glue jobs supports concurrency which can be set in your glue job(whcih means you can have multiple invocations of the same job). This would be the easier option than implementing multi-threading in your job. But multi-threading would cretainly be possible as long as we use only default or pure python modules. There are certain account level limits (which can be increased) that you will need to keep in mind.\nYou can pass the arguments to the glue job when you invoke the glue job, by using whatever mechanism you want (eg: step functions\/lambdas...)","Q_Score":1,"Tags":"python,pyspark,aws-glue","A_Id":63238219,"CreationDate":"2020-08-03T21:28:00.000","Title":"Reusable AWS Glue Job","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I need to save apscheduler scheduler instance I'm working with to remove it later or modify.\nI have django web app. I have notification model in django admin. After creating a new row - I schedule notification to send it later on my email. And that part works perfectly.\nBut what if I need to change the notification or delete it?\nThere is problem..\nWith some \"returns\" I've got the schedule instance in my admin.py. But I can only print it to console and that's all. How and where can I save this instance to work with it later? (after delete row 4 example).","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":120,"Q_Id":63248174,"Users Score":0,"Answer":"Ok just add your scheduler to AppConfig","Q_Score":0,"Tags":"python,django,apscheduler","A_Id":63264588,"CreationDate":"2020-08-04T13:40:00.000","Title":"Share one global apscheduler scheduler across all modules Django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"For my project, I have a virtual currency, which you can get by staying on the page. (every 15 minutes you get 0.1 coins) I did some research, and I did not find anything about it in Flask and I have no clue on how to see how long a user has been on a page. Is there anyone who could help me?\nThanks,\nRobert S.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":39,"Q_Id":63251283,"Users Score":1,"Answer":"There is no direct way as http is stateless.\nThat means that once a page is loaded, the connection between browser and server gets disconnected.\nMaybe there are ways to workaround this limitation, eg by regularly send a message to the server via Javascript or with websockets.","Q_Score":0,"Tags":"python,flask","A_Id":63252349,"CreationDate":"2020-08-04T16:34:00.000","Title":"Python Flask detect how long a user has been on the page","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm trying to deploy a Flask webapp to Heroku and I have seen conflicting information as to which files I need to include in the git repository.\nMy webapp is built within a virtual environment (venv), so I have a Pipfile and a Pipfile.lock. Do I also need a requirements.txt? Will one supersede the other?\nAnother related question I have is what would occur if a certain package failed to install in the virtual environment: can I manually add it to the requirements.txt or Pipfile? Would this effectively do the same thing as pipenv install ... or is that doing something else beyond adding the package to the list of requirements (considering Heroku is installing the packages upon deployment).","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":5917,"Q_Id":63252388,"Users Score":11,"Answer":"You do not need requirements.txt.\nThe Pipfile and Pipfile.lock that Pipenv uses are designed to replace requirements.txt. If you include all three files, Heroku will ignore the requirements.txt and just use Pipenv.\nIf you have build issues with a particular library locally I urge you to dig into that and get everything working on your local machine. But this isn't technically required... as long as the Pipfile and Pipfile.lock contain the right information (including hashes), Heroku will try to install your dependencies.","Q_Score":3,"Tags":"heroku,pip,python-venv,requirements.txt,pipfile","A_Id":63252833,"CreationDate":"2020-08-04T17:44:00.000","Title":"requirements.txt vs Pipfile in heroku flask webapp deployment?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I was trying to test run  my python solution in Foobar platform using verify solution.py option . But I am continuously getting this error : 'CSRF Failed: CSRF token missing or incorrect.'\nShould I change my cookie preferences ?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":167,"Q_Id":63270317,"Users Score":0,"Answer":"Try enabling cookies in your browser and reloading the page.","Q_Score":0,"Tags":"python,python-3.x,google-chrome,csrf","A_Id":65066245,"CreationDate":"2020-08-05T17:17:00.000","Title":"CSRF Failed: CSRF token missing or incorrect. error while submitting the foobar solution in Google's foobar platform","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Context:\nI currently have a Python Flask app which when receives a request, it automatically creates a Kubernetes job to run a process. Once the job finishes, it posts back the results to a specific endpoint (never changes). Depending on the specifics of the request, this process can vary greatly in length (time) and in resource requirements. The reason I'm using Jobs for this is due to their ability to restart on failure.\nProblem:\nEven with allowing maximum restarts, there will be times where the process will error. I want to implement something along the lines of:\n\nIf the job finishes successfully, do nothing.\nIf the job fails after reaching max retries, then run foo()\n\nfoo() is a very simple Python function that will send an HTTP request with the parameters of the request that resulted in the job not successfully completing. It does not have to be a Python function, but it is preferred.\nNote: I wrap everything in a broad error exception within the python function that the job needs to perform, however, there might be times that the job will fail due to insufficient memory.","AnswerCount":1,"Available Count":1,"Score":-0.1973753202,"is_accepted":false,"ViewCount":38,"Q_Id":63277074,"Users Score":-1,"Answer":"why don't implement a serveless solution in your cluster ,\nknative or kubeless or other solution.","Q_Score":0,"Tags":"python-3.x,kubernetes,kubernetes-jobs,kubernetes-python-client","A_Id":63279135,"CreationDate":"2020-08-06T04:54:00.000","Title":"Is there a way to automatically launch a followup (different) job only if a Kubernetes job fails?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"Alembic doesn't support replaceable objects like views so we often have to write a custom function in revision that executes creation of them. Is there a way to share these functions across revisions instead of copy-pasting over and over?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":91,"Q_Id":63292572,"Users Score":0,"Answer":"After looking, you can either reference code in a separate package or use env.py. Creating your own module is probably easier","Q_Score":0,"Tags":"python,sqlalchemy,alembic","A_Id":63309715,"CreationDate":"2020-08-06T22:22:00.000","Title":"alembic - how to share functions across revisions?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Is it possible to add multiple admins in Django's admin panel and how I will register them(they need to have the same rights)? And also is it possible to add another 2 roles to the panel with different rights?\nI read a lot about it and can't find the answer.\nI will really appreciate your help!","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":286,"Q_Id":63297245,"Users Score":0,"Answer":"You can just create\/modify a user and while creating a user you can select their role if they are admin, staff, etc. You can also customize user's permissions when you create their account or if the accounts are already created you can modify it.\nTo avoid having to assign permission's again and again, i would suggest you create a new group and add the permission that the user in that group should have and then assign the desired user in that group.","Q_Score":0,"Tags":"python,django,django-admin","A_Id":63297341,"CreationDate":"2020-08-07T07:33:00.000","Title":"Multiple admins in Django is it possible","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Given a {{ form  }} in a template for a model with a models.TextField called text, is there a way to access the html text-input field inside the same template directly from the form ?\nI need something like document.getElementById() but don't know what id to pass.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":69,"Q_Id":63303771,"Users Score":0,"Answer":"IDK what really you try to asking, explain more!","Q_Score":0,"Tags":"python,html,django,django-models,django-forms","A_Id":63309982,"CreationDate":"2020-08-07T14:24:00.000","Title":"Get html text-input element from django-form in template","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have an email form on my webpage where the goal is for users to be able to send my account an email. They give me their email but is there a way to send a message from their email to my email without their password. All i'm seeing online is code to send out emails through flask not recieve. What work arounds do you guys suggest where I can have users send me an email through my website.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":28,"Q_Id":63322561,"Users Score":1,"Answer":"I am pretty sure that this is not possible.\nOtherwise you would have \"access\" on their account and could write mails to everyone you want.\nA solution would be to save the message in the database and if you need it, you can send the message to you, with all the needed information, by your own mail adresse (like AKA commented).","Q_Score":0,"Tags":"python,html,forms,email,flask-mail","A_Id":63326079,"CreationDate":"2020-08-09T04:49:00.000","Title":"Recieving emails from my website through flask?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am very new to Mongo engine and currently I have mongo query filter that is working in mongo shell but I wanted to achieve the same in Mongoengine , can you please help me\nMongo Shell Query\n{name:{$nin:[\/ja\/,\/ra\/]}}\nbut same is not working with Mongoengine\nnamelist = NameRecord.objects(name__nin=['\/ja\/','\/ra\/'])\nThanks in advance","AnswerCount":2,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":133,"Q_Id":63325358,"Users Score":2,"Answer":"First of all I would like to thank @tom-slabbaert for pointing me the what was wrong , as he pointed the issue was with regex of python and finally with his input I am able to find the solution, in fact all credits goes to him just I am adding answer so it will be helpful any others in future\nnamelist = NameRecord.objects(name__nin=[re.compile(r\"ja\"), re.compile(r\"ra\")])","Q_Score":1,"Tags":"python,mongodb,flask,mongoengine","A_Id":63327139,"CreationDate":"2020-08-09T10:50:00.000","Title":"Python Mongoengine with $nin with pattern","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"Flask URL interpreter recognizes \/api\/hello but not when passed like this \/api\/hello\/\nIs there to have it work both ways?","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":33,"Q_Id":63325478,"Users Score":0,"Answer":"Add a \/ after hello so it will redirect to \/api\/hello\/ even if request is done on \/api\/hello\n@app.route('\/app\/hello\/')","Q_Score":0,"Tags":"python,flask,werkzeug","A_Id":63325594,"CreationDate":"2020-08-09T11:03:00.000","Title":"Flask URL works like this \"\/api\/hello\" but not like this \"\/api\/hello\/\"","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Flask URL interpreter recognizes \/api\/hello but not when passed like this \/api\/hello\/\nIs there to have it work both ways?","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":33,"Q_Id":63325478,"Users Score":0,"Answer":"You can do like this\n@app.route(\"\/api\/hello\/\")\nIn this way both url will work","Q_Score":0,"Tags":"python,flask,werkzeug","A_Id":63325562,"CreationDate":"2020-08-09T11:03:00.000","Title":"Flask URL works like this \"\/api\/hello\" but not like this \"\/api\/hello\/\"","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I need to set a background image for my html. I have a file system of\nStatic\n\ncss\nimg\n\nThis is what I use to link my css file.\n<link rel=\"stylesheet\" href=\"{{ url_for('static',filename='css\/index.css') }}\">\nIn my css file I defined the background-image\n.bgimg-1 {background-image: url(\"\/static\/img\/background.jpg\");}\nHowever in my flask application I am getting the error of\n127.0.0.1 - - [09\/Aug\/2020 19:10:04] \"[37mGET \/ HTTP\/1.1[0m\" 200 -\n127.0.0.1 - - [09\/Aug\/2020 19:10:04] \"[33mGET \/static\/css\/static\/img\/background.jpg HTTP\/1.1[0m\" 404 -\nIm not sure where does the \/static\/css\/ is coming from\nI defined the class in <header class=\"bgimg-1 w3-display-container w3-grayscale-min\" id=\"home\">","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":322,"Q_Id":63326046,"Users Score":0,"Answer":"I feel, it's because your index.css file is inside \/static\/css\/ folder and from there it is referring to image (\/static\/img\/background.jpg) , so making the complete image url to this - \/static\/css\/static\/img\/background.jpg","Q_Score":0,"Tags":"python,html,css,flask,web-development-server","A_Id":63326257,"CreationDate":"2020-08-09T11:56:00.000","Title":"Set Background image in CSS file using python flask framework render_template","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Currently I have a Scrapy Spider yielding various items on the parse method. Is there any way to get all items that have been yield, regardles of how many times the parse method has been called?","AnswerCount":3,"Available Count":1,"Score":0.0665680765,"is_accepted":false,"ViewCount":404,"Q_Id":63329738,"Users Score":1,"Answer":"There are generally two ways to do this.\nFirstly, you can simply save the output in the JSON file using command scrapy crawl my_spider -o my_data.json. Secondly, you can write a pipeline and store the output in any DB to structure you want.","Q_Score":0,"Tags":"python,scrapy","A_Id":63339209,"CreationDate":"2020-08-09T18:12:00.000","Title":"Process all yield items in Scrapy","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm trying to build a react app that can render a JSX file that is added\/modified after npm build.\nMore details below\nI have a single page react app with various data table and chart components, which fetch data from flask backend. All those components are put together in a single JSX file (result.jsx).\nAfter \"npm build\" I might need to change the data contents or layout of the page, (e.g adding additional tables\/charts to the page). By modifying the flask backend, data contents can be updated easily but as for the layout I currently need to modify the result.jsx and npm build again.\nIs there a way to avoid doing npm build whenever result.jsx file is changed?\nI'd like to keep result.jsx outside of the npm build to keep it flexible, and have the react frontend to simply mirror this resuit.jsx","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":112,"Q_Id":63332592,"Users Score":0,"Answer":"In your build output, you don't have a running process that picks up JS files in a directory, it's all concatenated together into one file. JSX is compiled to JS through the build tools and isn't understood by the browser without that step anyway.\nIf you want components that respond to data, you'll have to code them to do that. You may be able to do something with React Router and dynamic routing, but that'll still point to coded component files.","Q_Score":0,"Tags":"javascript,python,reactjs,flask","A_Id":63334695,"CreationDate":"2020-08-10T00:15:00.000","Title":"ReactJS\/Flask app to render a given JSX file that is added after \"npm build\"","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am wondering if there is a method to connect 3ds Max and Maya. For example, I want to use a Maya plugin to send a maxscript to 3ds Max to import an fbx in 3ds max. I think it just like send to Max function in Maya, and it seems like the OneClickDispatch does similar work, but I do not how OneClickDispatch sends the script to 3ds max and execute it. Does anyone know how to do it?\nThanks!","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":259,"Q_Id":63334042,"Users Score":0,"Answer":"For example SublimeEditor is doing it by finding 3dsMax window handle, then is finding handle of childwindow \"Scintilla\" - maxscript listener, send text there, like filein @\"X:\\location\\to\\your\\temp\\script\" and then return char - should be easy to snitch from Sublime, otherwise you have to be quite familiar with Windows ShellApi","Q_Score":0,"Tags":"python,maya,3dsmax,maxscript","A_Id":63944618,"CreationDate":"2020-08-10T04:13:00.000","Title":"Send and Execute maxscript or python from Maya to 3ds Max","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Few year ago I created a proxy script with python and Flask. It only run up app and bypass a request to the direction and added \"response.headers['Access-Control-Allow-Origin'] = '*'\" to avoid CORS calls between server.\nWhen I installed ubuntu 18.04, the only way to install python environment with \"flask\" and \"request\" libraries was to create a \"venv\" environment. I can't install directly in ubuntu with pip. So, I did it and I create my virtual environment for flask.\nMy problem is after all already succesfull, I run venv \"source venv\/bin\/activate\" and then launch my scrpipt \"python3 server.py\". Everything went well, but when I close the ssh connection \"venv\" is down also. I tried run with with \"python3 server.py &\" but the same.\nHow can I make \"venv\" virtual environment permanent, not to go down after exit the ssh connection?\nThanks! :)","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":210,"Q_Id":63336243,"Users Score":0,"Answer":"SOLVED!\nI was installing everything for python2. I installed sudo apt install python3-pip, and then install all needed libraries with python3 and I could run up without venv environment","Q_Score":0,"Tags":"python,python-venv","A_Id":63336332,"CreationDate":"2020-08-10T07:57:00.000","Title":"Make python3 venv permanent after ssh termina close","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"first of all apologies for the vague question, I thought I would clarify it in the body.\nSo basically, I am looking to design a website for my society, as a person with a fair amount of software development know how(or at-least I would like to think so), how can I go about designing a web application that can be edited, from the front end(I know this breaks alot of MVC principles), I want to make it so, that an administrator can login to the administrator account on the web app, and upload\/delete a new blog and make aesthetic changes to the application. Is there any way to build\/design a web applications this way.\nSo basically the program flow would look something like this\n\nAdministrators decides to update the blog\nAdministrator logins into the admin account\nEdits the blog on the website\nSaves the blog, the edited blog now appears on the front end, visible to all visitors.\n\nSecondly, if the first option is not recommended, what frameworks can I use(preferably python) so that I can ensure the website is as maintainable as possible(after I finish university, I will not be maintaining it ).\nWould a common framework such as Django, Flask suffice?\nThis must all be completed within 4-5 weeks, in a three developer team.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":35,"Q_Id":63336366,"Users Score":0,"Answer":"I would go with Flask, you can do almost anything you want with it.\nWhen you say \"edit blog\" you mean \"edit posts of the blog\" like postbody-text, photos, etc?\nThese tasks can be done easily with Flask.\nYou can do the same with Django too, but Django is more heavy and is more suitable for big websites\nIn practice, you will create some routes in the Flask app with the functionality you want (edit posts, replace photos, etc) that will be accessed by the admin account only","Q_Score":0,"Tags":"python,flask,web-applications,architecture","A_Id":63340107,"CreationDate":"2020-08-10T08:07:00.000","Title":"Designing a maintainable\/editable website for a society","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm currently developing a REST API with DRF for a web application. So I decided to use OAuth2 authentication system. After a little research, I understood that OAuth mostly used for authenticating third-party apps and what I want is simply authenticate the user to my website, not with Facebook or Google accounts. So token authentication seems to be the most secure way to do it and with OAuth is being too confusing and not suitable to me which authentication method should I follow? Is django's built-in TokenAuthentication secure to make a web-app? Should I use OpenId connect?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":222,"Q_Id":63341192,"Users Score":0,"Answer":"OAuth2 is a protocol to allow your website to access some API on behalf of the user whose data your trying to access (delegated authorization).\nIf you just want to know who your user is on your site (authentication), OpenID Connect is a protocol built on top of OAuth2 that gives you that information. It will give you a JWT id_token that has claims about the authenticated user.","Q_Score":1,"Tags":"python,authentication,oauth-2.0","A_Id":63345793,"CreationDate":"2020-08-10T13:27:00.000","Title":"Should I use OAuth2 Authentication?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am using pipenv as the virtual environment in a Django project. I installed the Django third-party package django-allauth-2fa via pipenv install django-allauth-2fa==0.8.\nIn the package's docs regarding its installation it says: note that this will install Django, django-allauth, django-otp, qrcode and all of their requirements.\nAfter successfull installation I wanted to check if this is in fact the case, however my Pipfile did not show any new installation besides django-allauth-2fa. I double checked with  pip freeze from within the virtual environment shell and got a list back, in which all the package's dependencies were indeed listed (qrcode, django-otp, etc.)\nMy question is hence: Do I have a misunderstanding about how the Pipfile works? I assumed that the file shows all the packages that are installed in my virtual environment. Or are only those shown that were installed via the pipenv install <package> command but not those that were installed alongside packages installed via pipenv install <package>?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":768,"Q_Id":63342405,"Users Score":2,"Answer":"pip freeze shows all of the installed packaged. While pipenv shows only the explicitely declared (to be installed) packages. Maybe a better explanation: pipenv shows the packages you want to install, while pip freeze shows every package that need to be installed for your package to work.","Q_Score":0,"Tags":"python,django,pipenv,pipenv-install","A_Id":63342465,"CreationDate":"2020-08-10T14:39:00.000","Title":"Pipfile not showing all installed packages","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am using Django and channels (for WebSockets).\nEarlier, when I was developing, I created some objects in memory when a user does a request, and then websockets can use these objects.\nAfter, I run the production server with ssl, and for testing, I had to run apps separately: python manage.py startsslserver and daphne ... project.asgi:application.\nAnd now sockets do not have access to objects, which are initialized in django server.\nAnybody knows, how I can solve this problem?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":62,"Q_Id":63361669,"Users Score":0,"Answer":"More information is needed for a clear answer. django websocket problems are usually associated with other causes such as nginx.conf or daphne.service etc..","Q_Score":0,"Tags":"python,django,shared-memory,wss,daphne","A_Id":63370149,"CreationDate":"2020-08-11T15:41:00.000","Title":"Daphne. Access to Django defined objects","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Is there any way to show\/hide page in the odoo form when button is clicked ?\nThere is a page in my contact form I want to hide or show based on button click.\nI don't want to use attribute method or any xpath.\nJust click button page show up and click that button again it will hide.\nDoes JS can be written in Odoo form for this process?","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":270,"Q_Id":63370511,"Users Score":1,"Answer":"It's doable but I don't think it's a good approach, you can make a click event that will trigger toggle to hide\/show the notebook. But in your case, I would recommend that you do it through security if you want to show\/hide the notebook for specific users.","Q_Score":0,"Tags":"javascript,python-3.x,forms,odoo-13","A_Id":63383959,"CreationDate":"2020-08-12T05:45:00.000","Title":"Show or hide notebook page in Odoo?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Is it possible to only save celery results on specific parameters, such as a failed task?\nI have been looking but the only way I could manage was to go back through the celery results backend and parse through the data outside of celery.\nIs there a better way?\n(Note: I am using mongodb as a celery result backend.)","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":174,"Q_Id":63379799,"Users Score":1,"Answer":"Not that I know of (do not take my words for granted). If you specify result backend, it will be used for all tasks both successful and unsuccessful that do not ignore results.","Q_Score":0,"Tags":"python-3.x,celery,celery-task","A_Id":63393194,"CreationDate":"2020-08-12T15:26:00.000","Title":"Only store results of \"failed\" celery tasks (Celery Result backend)","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I have customized the save() method of my Django model to write some data into a file. I want to write the data into a file in STATIC_ROOT so nginx can serve it. When I write data into a file inside Django project root everything is OK but when I try to write to STATIC_ROOT I get \"Database is locked error\".\nWhat is the problem with that?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":32,"Q_Id":63383050,"Users Score":0,"Answer":"I found the solution to this problem but I didn't get why this happens!\nTo solve the problem when I was overriding the save method of Django model, I first called the save method of parent model and then saved my file! Do in reverse order caused the error.","Q_Score":0,"Tags":"python-3.x,django,database,sqlite,django-models","A_Id":63398914,"CreationDate":"2020-08-12T18:53:00.000","Title":"Django sqlite \"Database is locked\" when writing to STATIC_ROOT","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am currently developing a React-Django app and using dj-rest-auth package and JWT for authentication on the backend. It works perfectly fine and when a user loggs in, server responses with a HttpOnly cookie which contains access_token.\nWhat I don't understand is how can I use the access_token that in the response-cookie for requests in my web app if I can't read the token value from my frontend since it is HttpOnly?\nI tried js-cookie package for storing JWT in cookies and since it is written in JS, I can't make it HttpOnly. So I am storing access_token in a cookie but doesn't it break the point of HttpOnly cookies since they both store the same token value?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":111,"Q_Id":63399327,"Users Score":1,"Answer":"you can send the token to your api call on the headers as Authorization Bearer + token","Q_Score":0,"Tags":"python,django,reactjs,authentication,jwt","A_Id":63399761,"CreationDate":"2020-08-13T16:23:00.000","Title":"How to use tokens in frontend for authentication","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"i'm new in python, i would like create an executable-installer of my django project, i would like that my client with double-click runs this program and open his browser with my project running on his local server, and that he can access to mysql database, Thanks.\nI've searched on internet about python to exe scripts, PyInstaller, but I can't find how to run the server and connect to the database in an executable.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":357,"Q_Id":63402826,"Users Score":0,"Answer":"First of all, you need to prepare your application and embed a production-ready web server such as uvicorn. Afterward, you must bundle this with a tool such as pyinstaller. This can be quite a hassle due to the large number of dependencies.","Q_Score":0,"Tags":"python,mysql,django","A_Id":63404018,"CreationDate":"2020-08-13T20:34:00.000","Title":"Is it possible to create an executable from my django project with connection to a mysql database?","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have code on aws ec2. Right now, it accepts input and output files from s3. Its an inefficient process. I have to upload input file to s3, copy s3 to ec2, run program, copy output files from ec2 to s3, then download locally.\nIs there a way to run the code on ec2 and accept a local file as input and then have the output saved on my local machine?","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":435,"Q_Id":63403563,"Users Score":0,"Answer":"@John Rotenstein we have solved the problem of loading 60MB+ models into Lambdas by attaching AWS EFS volumes via VPC. Also solves the problem with large libs such as Tensorflow, opencv etc. Basically lambda layers almost become redundant and you can really sit back and relax, this saved us days if not weeks of tweaking, building and cherry picking library components from source allowing us to concentrate on the real problem. Beats loading from S3 everytime too. The EFS approach would require an ec2 instance obviously.","Q_Score":0,"Tags":"python,amazon-web-services,amazon-s3,amazon-ec2","A_Id":63439343,"CreationDate":"2020-08-13T21:37:00.000","Title":"How to run code on aws ec2 with local input and output","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"We are trying to install a django project in a remote server that is Windows 7. The installer make a virtual environment and install some packages in it, django among them. \nThe virtual environment is created (I can see it typeing workon or lsvirtualenv) but is not activated if I type workon  in a cmd, simply prompts current path after press enter key\nIn which cases happen this? Why can't I activate a virtual environment that exists?\nNote: This process finish successfuly in local machines","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":113,"Q_Id":63409217,"Users Score":0,"Answer":"Have you tried activate? My cmd usually looked like\ntutorial\/scripts\/activate","Q_Score":0,"Tags":"python,django,windows-7,virtualenv","A_Id":63409678,"CreationDate":"2020-08-14T08:27:00.000","Title":"python workon command doesn't activate the virtual environment in cmd windows 7","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a Django project forked from GitHub. But I don't know which version of Django is used in that project. How can I find the Django version of the project ? I haven't installed Django in my PC.","AnswerCount":4,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":1753,"Q_Id":63410207,"Users Score":0,"Answer":"Django version or any other package version\nOpen the terminal or command prompt\nType\npip show django","Q_Score":3,"Tags":"python-3.x,django","A_Id":63414634,"CreationDate":"2020-08-14T09:30:00.000","Title":"How To Find Django Version Of A Project?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a Django project forked from GitHub. But I don't know which version of Django is used in that project. How can I find the Django version of the project ? I haven't installed Django in my PC.","AnswerCount":4,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":1753,"Q_Id":63410207,"Users Score":0,"Answer":"import django\n\n\n\n\n\n\nprint(django.get_version())\n\n\n\n3.0.7","Q_Score":3,"Tags":"python-3.x,django","A_Id":63849002,"CreationDate":"2020-08-14T09:30:00.000","Title":"How To Find Django Version Of A Project?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Is it possible + legal to have a website where when people register, a personal google drive is created for them? Trying to create a website where people can upload audio files in a post, which would be displayed for other users. Can the drive be used as a hosting platform for the uploaded files? If yes, then how can this be done?","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":547,"Q_Id":63412907,"Users Score":1,"Answer":"Is it possible + legal to have a website where when people register, a personal google drive is created for them?\n\nYou cant programmaticlly create a google account for another user.  You could request access to their google drive account and access things there but the issue will be if you want to share their files with someone else.\n\nTrying to create a website where people can upload audio files in a post, which would be displayed for other users.\n\nYou could use a service account to upload the files to an account that you the developer own and some how associate what was uploaded by each user.  Probably storing each users data in a directory linked to there user id in your system worked be the most logical.\nThe issue being here is you are going to be footing the bill for the storage space.\n\nCan the drive be used as a hosting platform for the uploaded files? If yes, then how can this be done?\n\nThe google drive api is really just a file storage system.  If you want the users to be able to view theses files after they will need to download them to their own machine.  Drive api wasn't really meant to host that will be viewed.","Q_Score":1,"Tags":"python,django,google-drive-api","A_Id":63413074,"CreationDate":"2020-08-14T12:37:00.000","Title":"Connecting django website to Google drive API","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Do I need a domain for both of the apps or I can just embed them on one server and make them communicate to each other","AnswerCount":3,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":60,"Q_Id":63423582,"Users Score":0,"Answer":"What you probably need is a cloud hosting, then php can run on port 80 while python on 81 or any other port.\nSo 127.0.0.1 for php and 127.0.0.1:81 for python","Q_Score":0,"Tags":"php,python-3.x","A_Id":63423636,"CreationDate":"2020-08-15T07:19:00.000","Title":"How to make two web app talk to each other one developed with PHP and the other with python","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am working on building a movie recommendation engine on aws sagemaker environment and i plan to show working demonstration for the same. I am trying to use the streamlit library for running the app.\nAfter running the command: streamlit run app.py, it provides me 2 urls i.e. Network and External urls.\nThe issues is none of the url works. It results in connection timed out, the server does not respond.\nPlease help","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":557,"Q_Id":63427965,"Users Score":0,"Answer":"You can try the following url https:\/\/{NOTEBOOK_URL}\/proxy\/8501\/. You may have to change the proxy based on which proxy is used in the Network and External urls","Q_Score":2,"Tags":"python,user-interface,jupyter,amazon-sagemaker,streamlit","A_Id":65145807,"CreationDate":"2020-08-15T15:48:00.000","Title":"Streamlit Browser App does not open from Sagemaker Terminal","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I am about to design an app that requires to do some medium level of computation (training some small machine learning model).\nI am thinking about designing the app with django. Was wondering if django can allow that some of these computations can be done in the client\u2018s browser, i.e. using its memory and cpu. Some initial tips of where to start looking at will be much appreciated.\nThanks","AnswerCount":2,"Available Count":2,"Score":0.0996679946,"is_accepted":false,"ViewCount":109,"Q_Id":63431751,"Users Score":1,"Answer":"That's the reason Django is mostly used for building APIs.  If you want the View (Template in Django) to update, a request would be made to the server's Controller (View in Django) to render a new version of the webpage.  I would highly recommend a front end framework and just use Django for your api if you want to run client side computations.","Q_Score":1,"Tags":"python,django,client-server","A_Id":63431988,"CreationDate":"2020-08-15T23:38:00.000","Title":"Can django do computations in the client?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am about to design an app that requires to do some medium level of computation (training some small machine learning model).\nI am thinking about designing the app with django. Was wondering if django can allow that some of these computations can be done in the client\u2018s browser, i.e. using its memory and cpu. Some initial tips of where to start looking at will be much appreciated.\nThanks","AnswerCount":2,"Available Count":2,"Score":0.0996679946,"is_accepted":false,"ViewCount":109,"Q_Id":63431751,"Users Score":1,"Answer":"Yes, You would need to use Javascript and call views you made in Django.\nYou can use any javascript library, also Vue if you need a framework.","Q_Score":1,"Tags":"python,django,client-server","A_Id":63434106,"CreationDate":"2020-08-15T23:38:00.000","Title":"Can django do computations in the client?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm using a raspberry pi as a server to host a program. Part of what this program does is interface with websites such as spotify, google sheets, and google forms through their respective APIs (or a library wrapper)\nIn order to interface with spotify, i've attempted to use a python module called 'spotipy' which is a wrapper for the spotify API. However, i'm having trouble getting it to work, and I have a feeling its because the API requires authentication which utilizes the systems browser, i.e. chromium on the pi, but chromium does not have support for open.spotify.com due to its limited capabilities.\nIs it reasonable to say that a web API wont work without access to the website you are attempting to interface with?\nHopefully this is provides enough information, thanks.","AnswerCount":1,"Available Count":1,"Score":-0.1973753202,"is_accepted":false,"ViewCount":68,"Q_Id":63461337,"Users Score":-1,"Answer":"github.com\/plamere\/spotipy#quick-start\nto answer your question, you don't need chromium to use APIs. According to the quickstart that I linked above\n\nyou need to register your raspberry pi as an App on spotify dev site and acquire the \"credentials\"\nthen declare those credentials in your script","Q_Score":0,"Tags":"python,api,raspberry-pi,spotipy","A_Id":63461488,"CreationDate":"2020-08-18T03:11:00.000","Title":"Using web APIs with limited website access (raspberry pi)","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am working with python3 and using flask I tried to install flask_wtf and wtforms but keep getting error from pylint on my imports. I re-installed flask_wtf, checked my path, and closed VsCode code already. Any help is appreciated","AnswerCount":2,"Available Count":1,"Score":-0.0996679946,"is_accepted":false,"ViewCount":577,"Q_Id":63477047,"Users Score":-1,"Answer":"The error went away with pip install email_validator","Q_Score":0,"Tags":"python,visual-studio-code","A_Id":63504240,"CreationDate":"2020-08-18T21:43:00.000","Title":"Vscode not able to import flask_wtf and wtforms","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am working on a web scraping project. In this project, I have written the necessary code to scrape the required information from a website using python and selenium. All of this code resides in multiple methods in a class. This code is saved as scraper.py.\nWhen I execute this code, the program takes sometime between 6 and 10 seconds to extract all the necessary information from the website.\nI wanted to create a UI for this project. I used django to create the UI. In the webapp, there is a form which when submitted opens a new browser window and starts the scraping process.\nI access the scraper.py file in django views, where depending on the form inputs, the scraping occurs. While this works fine, the execution is very slow and takes almost 2 minutes to finish running.\nHow do I make the execution of the code faster using django faster? can you point me some tutorial on how to convert the scraper.py code into an api that django can access? will this help in making the code faster?\nThanks in advance","AnswerCount":1,"Available Count":1,"Score":0.3799489623,"is_accepted":false,"ViewCount":614,"Q_Id":63480479,"Users Score":2,"Answer":"Few tiny tips,\n\nHow is your scraper.py working in the first place? Does it simply print the site links\/details, or store it in a text file, or return them? What exactly happens in it?\nIf you wish to use your scraper.py as an \"API\" write your scraper.py code within a function that returns the details of your scraped site as a dictionary. Django's views.py can easily handle such dictionaries and send it over to your frontend HTML to replace the parts written in Jinja2.\nFurther speed can be achieved (in case your scraper does larger jobs) by using multi-threading and\/or multi-processing. Do explore both :)","Q_Score":0,"Tags":"python,django,selenium,django-views","A_Id":63480617,"CreationDate":"2020-08-19T05:22:00.000","Title":"How to scrape data faster with selenium and django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to send json collections from a Flask server to remote Perforce depot using P4Python.\nIs there a way to do that through Python?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":31,"Q_Id":63482517,"Users Score":0,"Answer":"The strategy for doing this via P4Python is going to be about the same as doing it via the command line or one of the other scripting APIs: you'll need to create a workspace, write the file to the workspace, and use p4 add and p4 submit.\nThere isn't an API that lets you pipe data directly into the server to be converted into a depot file.","Q_Score":0,"Tags":"python,flask,pymongo,perforce,p4python","A_Id":63489549,"CreationDate":"2020-08-19T08:00:00.000","Title":"Sending json collections to Perforce depot","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Active contents are JavaScript, PostScript. I want to know for a given PDF file if it contains any active content. How can I check this with Python?","AnswerCount":1,"Available Count":1,"Score":0.3799489623,"is_accepted":false,"ViewCount":264,"Q_Id":63483983,"Users Score":2,"Answer":"You need a Python library that gives access to what Adobe (and some other libraries) calls the COS level. That's the level of objects in the file.\nFor JavaScript I'm afraid there is no other way than to go through the PDF specification, and look for all places where JavaScript would be allowed, and then check those.\nFor PostScript I was going to say you don't have to be concerned about that because it's no longer possible, but I have to come back on that view :) You basically need to check for:\n\nPostScript XObjects: I'm a bit surprised that these are still in the specification because I thought they were deprecated, but oh well, at least in 32000-1 they apparently still exist.\nPostScript functions (Type 4 functions). Some PDF objects use functions in their definitions and there is a PostScript function type.\n\nThen it becomes a bit tricky as there are some caveats:\n\nAt one point there was a PostScript operator that could be used in the page stream and that could inject PostScript directly into the page stream. This is deprecated, but depending on your goal you might still have to detect it.\nWhen I said you need a library with COS level access, you might actually need more. You can detect a PostScript XObject on the COS level, but in order to know whether it's actually used on the page, you'll need a library that can also parse the page content for you. Whether you need this or not is up to your purpose.\n\nAnd then, again depending on your purpose, you should realise that PostScript or JavaScript code could be hidden in stream objects just about anywhere in a PDF file. They wouldn't be used because tools wouldn't know it's there, but they would still be there. Whether or not you're concerned about that depends on what you're planning to use this for.","Q_Score":1,"Tags":"python,pdf","A_Id":63494142,"CreationDate":"2020-08-19T09:29:00.000","Title":"How can I check if a PDF has active content with Python?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"We are developing REST APIs using python framework called FASTAPI. The code security test failed for html injection. They are sending some html tag code in the post payload, we are inserting that in DB and sending same in GET Response. Is there any way to prevent  this HTML injection while processing request in FASTAPI.","AnswerCount":1,"Available Count":1,"Score":0.761594156,"is_accepted":false,"ViewCount":1102,"Q_Id":63488278,"Users Score":5,"Answer":"yes.  No framework is going to magically change the content you get without you being explicit about it.   (Imagine if it was a REST API for recording HTML snippets from an internal system to be used in rendering web pages in another endpoint: you'd need the HTML as is)\nIt is just a matter of calling a escape function on your input data, before putting that on the db.\nPython's standard library html.escape function suffices in this case.\nThere is no code in your question, and I don't know FASTAPI by heart - but if it puts the payload in the DB without going through any code you write, then you should either customize that and put in this call to preprocess your data, or add a triggered stage (that is, an event subscriber) that will do that for you.","Q_Score":2,"Tags":"python,fastapi,html-injections","A_Id":63488487,"CreationDate":"2020-08-19T13:39:00.000","Title":"How can we prevent html injection in FASTAPI?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am working on class-based views on Django. I need to debug the functions line by line in a Class. I have added the breakpoints on various rows but when i debug VS-code reads the class at the startup but later does not stop at breakpoints when i click on controls that i want to debug.\nAny help would be appreciated.\nThanks","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":341,"Q_Id":63494138,"Users Score":1,"Answer":"Just posting so i can close the question.\nI figured that out... I had added breakpoints at def\/function line while breakpoints should be at line of code. Sorry for inconvenience...\nBut this may help other who may stuck on the same...","Q_Score":1,"Tags":"python,django-class-based-views","A_Id":63494747,"CreationDate":"2020-08-19T19:57:00.000","Title":"How to Debug class procedure in Python?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I had the idea to synchronise the equal scripts from a python program\nthat Im running on different computers in parallel, by creating a\nglobal timestamp based of the script that startet first.\nSo for a better explanation, it should work like this:\nThe Script runs on PC 1 and creates a timestamp.\nEverything the script has to do after that will only be executed once\nthe time in the timestamp + 5 minutes is reached.\nFor the script on PC 2 or more, basically the same is happening but without\ncreating a new timestamp, since the starting time wouldnt be the\nsame anymore then.\nNow I already build a Python webserver that creates the timestamp and I am\nalso able to retrieve the time for my script. But I have to make sure that I\ncan reach the webserver without beeing in my own network and\nusing \"localhost:...\" as an adress. So now I wonder how I can make the webserver\npublic in the most easy way possible. The other option would be an\nalready public site, that can create custom timestamps on the basis of my configuration, so that I only create 1 timestamp for the first visitor on the site.\nDo you by chance know any of these sites or can tell me how I can make my HTML web server public?\nThanks","AnswerCount":4,"Available Count":2,"Score":0.049958375,"is_accepted":false,"ViewCount":3943,"Q_Id":63494148,"Users Score":1,"Answer":"You could create a proxy server on the same network with the pc you have the script running on and connect to it from the other pcs","Q_Score":0,"Tags":"python,timestamp,ip,webserver,public","A_Id":63494207,"CreationDate":"2020-08-19T19:58:00.000","Title":"How to make Python Web Server public?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I had the idea to synchronise the equal scripts from a python program\nthat Im running on different computers in parallel, by creating a\nglobal timestamp based of the script that startet first.\nSo for a better explanation, it should work like this:\nThe Script runs on PC 1 and creates a timestamp.\nEverything the script has to do after that will only be executed once\nthe time in the timestamp + 5 minutes is reached.\nFor the script on PC 2 or more, basically the same is happening but without\ncreating a new timestamp, since the starting time wouldnt be the\nsame anymore then.\nNow I already build a Python webserver that creates the timestamp and I am\nalso able to retrieve the time for my script. But I have to make sure that I\ncan reach the webserver without beeing in my own network and\nusing \"localhost:...\" as an adress. So now I wonder how I can make the webserver\npublic in the most easy way possible. The other option would be an\nalready public site, that can create custom timestamps on the basis of my configuration, so that I only create 1 timestamp for the first visitor on the site.\nDo you by chance know any of these sites or can tell me how I can make my HTML web server public?\nThanks","AnswerCount":4,"Available Count":2,"Score":0.049958375,"is_accepted":false,"ViewCount":3943,"Q_Id":63494148,"Users Score":1,"Answer":"You could use an amazon service like elastickbeanstalk its free to some extent and will make your server public","Q_Score":0,"Tags":"python,timestamp,ip,webserver,public","A_Id":63494268,"CreationDate":"2020-08-19T19:58:00.000","Title":"How to make Python Web Server public?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm working on a school project which I would like to showcase in a web browser or application.\nI would like the user to control the work with a mouse or keyboard. I want to show a unique image based on where the curser is over a visible grid. An additional feature is the ability to switch to a different \"stack\" of images upon user input from the scroll wheel or in a dialog.\nI have a beginner-intermediate understanding of Python.\nTheoretically, I could write this using Sage, but I would like the feedback to be instant - a change shouldn't require a new calculation, just show a new image.\nAdditionally, I would like to create a feature which takes the user on a \"tour\" based on information attached to an image.\nMy first thought was to use an online website builder (Webflow), though an opportunity to learn a new language or expand upon my knowledge of Python is my first choice.\nWhat language is best suited for this?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":40,"Q_Id":63498654,"Users Score":2,"Answer":"This is possible in Python, as nearly everything is (Python is a Genral Purpose Language), so you could certainly implement this in Python.\nThe best language for this, however,IMO, would be JavaScript.\nPython will almost certainly get in your way or at least hinder you slightly in comparison.\nAn 'online website builder' is not likely to provide you with the required amount to control needed to implement you project - most of these are painfully simplistic drag-and-drog tools where any real control only comes from adding your own CSS\/HTML\/JS anyways.\nJS is an incredibly useful language and also very well suited for nearly all web\/browser projects, so use this opportunity to learn it !\nFurther, React Native can let you use JS for mobile apps too, if that's what you meant by 'applications' or you could simply keep it a web app.\nPS. This may also be possible with HTML5, which is perhaps simpler and easier to learn, but I'm no a web dev so that will have to be confirmed by someone else.\nI am sure, though, that this is very efficiently doable in JS.","Q_Score":1,"Tags":"python,user-controls,web-project","A_Id":63499270,"CreationDate":"2020-08-20T05:09:00.000","Title":"Is Python ideal for this web project?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Hoping you can help. I\u2019m creating a web app with python and Flask. One of the the things that my web app will do is provide a smart document search. You can enter text and it will fetch results of documents similar to the portion of text you entered.\nI\u2019ve used Flask for the front end to serve the HTML, manage any DB interactions required and display results. It will pass the query through to a Gensim similarity model and query it.\nMy question here is what is the best way to host these? I\u2019ve explored loading the model as part of loading flask but it slows things down quite a lot (it\u2019s c. 6gb in memory) but it works. I can then query the model quite easily as it\u2019s all within the same program scope.\nMy concern is that this would then not be scalable and possibly not best practice and that I may be better to host the model separately and make API calls to it from my Flask web app.\nThoughts and views would be much appreciated.\nThanks,\nPete","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":161,"Q_Id":63499110,"Users Score":1,"Answer":"Your thoughts are definitely on the right track.\nYes, you should separate the hosting of the model from your web app. Your suggestion of an API is a good one. Even if in the beginning it is all hosted on one machine, it is still worth doing this separation.\nOnce you are hosting this separately via an API, then as your web app has more users, it becomes easy to scale the model API.\nWhether by launching more instances and balancing requests. Or, depending on requirements, you could add scalability and robustness via messaging, like Rabbitmq, or a mix of the two.\nFor example, some systems that access extremely large datasets, return a response via email to let you know your answer is ready to download or view. In this case, you may host one instance of the model, and put requests in q queue to answer one by one.\nIf you need very fast responses from your model, then you are likely to scale via more instances and balancing.\nBoth options above can be rolled out yourself, using open source solutions, or you can go straight to managed services in the cloud that will auto scale via either of these methods.\nIf you are just producing this project yourself with no funding, then you most likely do not want to start by using managed services in the cloud, as these will auto scale your bank account in the wrong direction.\nThe above solutions allow you to make changes, update the model, even use a different one, and release it on its own as long as it still conforms to the API.\nSeparation of boundaries in data, and responsibilities in behaviour are important in having a scalable and maintainable architecture.","Q_Score":0,"Tags":"python,flask,gensim","A_Id":63499255,"CreationDate":"2020-08-20T05:56:00.000","Title":"Best practice for deploying machine learning web app with Flask","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Whenever I am trying to run testcases in Robot framework through cmd, i am getting the below error:\nParsing <filename with path> failed UnicodeDecodeError: 'utf-8' codec can't decode byte 0x92 in position 31: invalid start byte\nThe above error thrown for some files and below error for some files\nParsing <filename with path> failed UnicodeDecodeError: 'utf-8' codec can't decode byte 0x92 in position 47: invalid start byte\nAnd then my test fails saying there is no such tag in the suite I am referring to, but I have the tag in my file.\nInitally I thought it was because of some setting in the editor(STS) I am using and changed the settings under Window-> preferences -> General -> Workspace -> text file encoding option to 'Other' and selected utf-8, gave workspace rebuild, restarted the STS, but still no luck.\nBeen searching for a solution since weeks. Can someone help me on this?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":451,"Q_Id":63501153,"Users Score":0,"Answer":"Checking each and every Testcases by removing and adding them in new file and also by removing all the special characters used in keyword definition as well in testcase definition in the robot files resolved the issue","Q_Score":0,"Tags":"python-3.x,unicode,utf-8,robotframework,decode","A_Id":67487485,"CreationDate":"2020-08-20T08:26:00.000","Title":"Getting UnicodeDecodeError: 'utf-8' when robot framework testcases are run in command prompt","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am currently using django==2.2.5, managing my dependencies via pipenv and would like to upgrade to django==2.2.15\nUnfortunately the pipenv documentation does not say anything regarding the option of specifying a certain version when using pipenv update - hence my problem\/question:\nSince the command pipenv update django would update my django to the latest 3.1 version but I only want to update to version 2.2.15 I have to use pipenv install django==2.2.15. True or Not? And if not, what would be the correct way?\nSince I am doing this the first time, I am amfraid to mess things up , so just wanted to be on the safe side, before proceeding....","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":746,"Q_Id":63508029,"Users Score":1,"Answer":"You can use the command pipenv install django=='2.2.15' to make update to a specific version.","Q_Score":1,"Tags":"python,django,pipenv,pipenv-install","A_Id":63508093,"CreationDate":"2020-08-20T15:08:00.000","Title":"Correct way to update django to a specific (but not most recent) version via pipenv","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Im new in kivy and Im trying to build helloworld in python\/kivy on linux and for some reason I get this error and idk what to do with it\nhere is buildozer.spec https:\/\/drive.google.com\/file\/d\/1kUigxxOkf-HBF4qXwtcmfrVLZtJTkHtK\/view?usp=sharing\nhere is full output from console https:\/\/drive.google.com\/file\/d\/19YCXJ73oEHnl78-R2DoKlFuECkLfO6OW\/view?usp=sharing \n(for some reason stackowerflow says it looks like a spam when i put there just error so i must upload it on googledrive)\nI hope somebody can help me with it","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":33,"Q_Id":63509061,"Users Score":0,"Answer":"ValueError: storage dir path cannot contain spaces, please specify a path with --storage-dir\n\nThis is the error it's printed for you. It seems fairly clear. Try building in a folder without a space in the name.","Q_Score":0,"Tags":"python,android,linux,kivy,buildozer","A_Id":63513592,"CreationDate":"2020-08-20T16:06:00.000","Title":"Problem with building apk on android with buildozer","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":1,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I need a solution for this (I haven't tried it in mobile yet cause the program is in the development stage but I know the question will also get a late response) that if I have multiple modules installed via command prompt and if I use those modules to make an android app then will the app function as it did in the PC or will it say that the modules are missing and keep on crashing, I'm new to app development please help me.","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":955,"Q_Id":63511637,"Users Score":0,"Answer":"If you include the module in the compilation process (I don't know what you're using for compiling\/developing so not sure how to help there) the app won't crash. In the worst case it will just not play the audio, but the rest of the app should work (unless some part of it requires the audio to be played).","Q_Score":1,"Tags":"python,android,python-3.x,speech-recognition,pyaudio","A_Id":63512101,"CreationDate":"2020-08-20T19:03:00.000","Title":"does python modules like pyaudio works in a android if an android app is make by using python?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":1,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I would like to take the functionality of python and pair it with a nice html\/css interface. whats the best way to make it run in the background without the need for an external server. ideally you wouldn't even need python installed, just an exe. any suggestions would be very helpful.\nThank you","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":435,"Q_Id":63516950,"Users Score":0,"Answer":"The best way would be to use IIS(10) if you're on Windows 10.","Q_Score":0,"Tags":"python,flask,localhost,webserver,exe","A_Id":63517368,"CreationDate":"2020-08-21T05:22:00.000","Title":"Running a full stack flask app locally as an application","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am working on a chat application, and I am wondering what are the benefits of for example using django-channels instead of making the chat in \"raw\" django?\nThank you in advance.","AnswerCount":1,"Available Count":1,"Score":0.3799489623,"is_accepted":false,"ViewCount":154,"Q_Id":63524238,"Users Score":2,"Answer":"django-channels is an abstraction to make building realtime applications easier. Django itself does not come with baked in websocket features so you could use raw Django and your own web sockets but it will be a lot harder and you will be reinventing lot of what django-channels does.","Q_Score":1,"Tags":"python,django,django-channels","A_Id":63524479,"CreationDate":"2020-08-21T13:57:00.000","Title":"Benefits of using django-channels instead of not using it","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"How do I continue work on a django project after I switched off my laptop. I'm using sublime text to edit and my command prompt to runserver. I have created a virtual environment and also activate it at the beginning of my work.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":66,"Q_Id":63528366,"Users Score":0,"Answer":"First, CD into the directory in your command prompt where your project is.\nSecond, activate the virtual environment again.\nThird, start the dev server.\nFourth, make changes to the code and make cool projects!","Q_Score":0,"Tags":"python-3.x,django","A_Id":63528565,"CreationDate":"2020-08-21T18:36:00.000","Title":"How do I continue work on a django project I created with cmd and using sublime text?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am developing a web application in which users can upload excel files. I know I can use the OPENROWSET function to read data from excel into a SQL Server but I am refraining from doing so because this function requires a file path.\nIt seems kind of indirect as I am uploading a file to a directory and then telling SQL Server go look in that directory for the file instead of just giving SQL Server the file.\nThe other option would be to read the Excel file into a pandas dataframe and then use the to_sql function but pandas read_excel function is quite slow and the other method I am sure would be faster.\nWhich of these two methods is \"correct\" when handling file uploads from a web application?\nIf the first method is not frowned upon or \"incorrect\", then I am almost certain it is faster and will use that. I just want an experienced developers thoughts or opinions. The webapp's backend is Python and flask.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":217,"Q_Id":63542212,"Users Score":0,"Answer":"If I am understanding your question correctly, you are trying to load the contents of an xls(s) file into a SQLServer database. This is actually not trivial to do, as depending on what is in the Excel file you might want to have one table, or more probably multiple tables based on the data. So I would step back for a bit and ask three questions:\n\nWhat is the data I need to save and how should that data be structured in my SQL tables. Forget about excel at this point -- maybe just examine the first row of data and see how you need to save it.\nHow do I get the file into my web application? For example, when the user uploads a file you would want to use a POST form and send the file data to your server and your server to save that file (for example, either on S3, or in a \/tmp folder, or into memory for temporary processing).\nNow that you know what your input is (the xls(x) file and its location) and how you need to save your data (the sql schema), now it's time to decide what the best tool for the job is. Pandas is probably not going to be a good tool, unless you literally just want to load the file and dump it as-is with minimal (if any) changes to a single table. At this point I would suggest using something like xlrd if only xls files, or openpyxl for xls and xlsx files. This way you can shape your data any way you want. For example, if the user enters in malformed dates; empty cells (should they default to something?); mismatched types, etc.\n\nIn other words, the task you're describing is not trivial at all. It will take quite a bit of planning and designing, and then quite a good deal of python code once you have your design decided. Feel free to ask more questions here for more specific questions if you need to (for example, how to capture the POST data in a file update or whatever you need help with).","Q_Score":0,"Tags":"python,sql-server,excel,pandas,flask","A_Id":63542301,"CreationDate":"2020-08-23T00:05:00.000","Title":"What is the correct way to upload files to a SQL Server inside my web application?","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm using scrapy to crawl all the links and selenium to scrape all the pages. Selenium scraped most of the pages but left a few pages as the page took time to load.\nI tried with timeout() , but didn't seem to work, then I tried with execute_script\n\ndriver.execute_script(\"return document.readyState==\"complete\";\")\n\nthis also didn't seem to work, then I tried with expected_conditions\n\nWebDriverWait.until(expected_conditions.execute_script(\"return\ndocument.readyState==\"complete\";\"))\n\nbut didn't seem to work\nI m using firefox browser, phantomJs for Headless\nTried using Chrome driver so installed using brew cask install chromedriver but I'm facing this error\n\nraise WebDriverException(\"Can not connect to the Service %s\" %\nself.path) selenium.common.exceptions.WebDriverException: Message: Can\nnot connect to the Service chromedriver\n\nso back to phantomjs.\nThank you!","AnswerCount":3,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":76,"Q_Id":63545051,"Users Score":0,"Answer":"Make use of sleep function which will help you in delaying the running of code in that time webpage will be loaded","Q_Score":0,"Tags":"python,selenium,web-scraping,scrapy,macos-catalina","A_Id":63545075,"CreationDate":"2020-08-23T08:45:00.000","Title":"How to make selenium to scrape pages after the page gets loaded","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm using scrapy to crawl all the links and selenium to scrape all the pages. Selenium scraped most of the pages but left a few pages as the page took time to load.\nI tried with timeout() , but didn't seem to work, then I tried with execute_script\n\ndriver.execute_script(\"return document.readyState==\"complete\";\")\n\nthis also didn't seem to work, then I tried with expected_conditions\n\nWebDriverWait.until(expected_conditions.execute_script(\"return\ndocument.readyState==\"complete\";\"))\n\nbut didn't seem to work\nI m using firefox browser, phantomJs for Headless\nTried using Chrome driver so installed using brew cask install chromedriver but I'm facing this error\n\nraise WebDriverException(\"Can not connect to the Service %s\" %\nself.path) selenium.common.exceptions.WebDriverException: Message: Can\nnot connect to the Service chromedriver\n\nso back to phantomjs.\nThank you!","AnswerCount":3,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":76,"Q_Id":63545051,"Users Score":0,"Answer":"I had this problem before. I used a while loop with try and except in it. Loop will keep trying to finish the work you have completed. If the page is not loaded then it will go into except which will just pass. But when it enters the try block and executes successful then at the end of the try block you can use a break to cone out of the loop. This worked 100% of the time for me.","Q_Score":0,"Tags":"python,selenium,web-scraping,scrapy,macos-catalina","A_Id":63545837,"CreationDate":"2020-08-23T08:45:00.000","Title":"How to make selenium to scrape pages after the page gets loaded","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"We are building a Cloud-based billing software. This software is web-based and should function like desktop software (Atleast). We will have 5000+ users billing at the same time. For now, we only have just 250 users. We are in a need of scaling now. We are using Angular as a Fronten, Python is used for Backend and React Native for Mobile App. PostgreSQL DB is used for Database. I have few doubts, to clarify before we scale.\n\nUsing PostgreSQL for DB will show any issues in the future?\n\nInstead of Integer's primary key, we are using UUID (For easy data migrations, but it uses more space). Is that will introduce any problems in the future?\n\nDo we have to consider any DB methods for this kind of scaling ? (Now, uses a single DB for all users)\n\nWe are planning to use one server with a huge spec (for all users). Is that will be good or do we have to plan for anything else ?\n\nUsing a separate application server and DB server is needed for our this scenario?","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":41,"Q_Id":63554864,"Users Score":1,"Answer":"I'll try to answer the questions. Feel free to judge it.\nSo, you are building a cloud-based billing software. Now you have 250+ users and is expected to have at least 5000 users in the future.\nNow answering the questions you asked:\n\nUsing PostgreSQL for DB will show any issues in the future?\n\nans: PostgreSQL is great for production. It is the safe way to go. It shouldn't show any issues in the future, but depends highly on the db design.\n\nInstead of Integer's primary key, we are using UUID (For easy data migrations, but it uses more space). Is that will introduce any problems in the future?\n\nans: Using UUID has its own advantages and disadvantages. If you think scaling is a problem, then you should consider updating your revenue model.\n\nDo we have to consider any DB methods for this kind of scaling ? (Now, uses a single DB for all users)\n\nans: A single DB for a production app is good at the initial stage. When scaling especially in the case of 5000 concurrent users, it is good to think about moving to Microservices.\n\nWe are planning to use one server with a huge spec (for all users). Is that will be good or do we have to plan for anything else ?\n\nans: Like I said, 5k concurrent users will require a mighty server(depends highly on the operations though, I'm assuming moderate-heavy calculations and stuff) therefore, it's recommended to plan for Microservices architecture. Thant way you can scale up heavily used services and scale down the other. But keep in mind that, Microservices may sound great, but in practice, it's a pain to setup. If you have a strong backend team, you can proceed with this idea otherwise just don't.\n\nUsing a separate application server and DB server is needed for our this scenario?\n\nans: Short answer is Yes. Long answer: why do you want to stress your server machine when you have that many users.","Q_Score":1,"Tags":"python,sql,angular,database,postgresql","A_Id":63555334,"CreationDate":"2020-08-24T04:47:00.000","Title":"DB structure for Cloud based billing software, planning issues","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am configuring the Airflow FAB UI to use LDAP authentication. Currently I have this working, but I can only filter by users who are members of one group in LDAP.\nAUTH_LDAP_SEARCH_FILTER = '(memberOf=CN=group1)'\nI would like to authenticate users who are in one of two groups. I have tried multiple variations of the below in the webserver_config.py\nAUTH_LDAP_SEARCH_FILTER = '|(memberOf=CN=group1)(memberOf=CN=group2)'\nbut I am always greeted with this error in the Airflow Webserver logs when trying to log in.\nERROR - {`result`: -7, `desc`: `Bad search filter`, `ctrls`: [] }\nIs filtering by multiple groups possible within the FAB LDAP framework?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":603,"Q_Id":63597222,"Users Score":0,"Answer":"Try adding another set of parentheses inside the quotes to encompass the multiple conditions:\nAUTH_LDAP_SEARCH_FILTER = '(|(memberOf=CN=group1)(memberOf=CN=group2))'","Q_Score":1,"Tags":"airflow,python-ldap,flask-appbuilder","A_Id":68121800,"CreationDate":"2020-08-26T12:02:00.000","Title":"Filter by multiple LDAP groups in Flask App Builder using AUTH_LDAP_SEARCH_FILTER","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am a newbie in the dev world and I made a big mistake this morning with my 5 database projects made in python. Basically I accidentally deleted the folder with my templates and my code. All of them are deployed on gcloud datastore, but I was wondering if there is any method to rescue or to have a backup folder with all the files. Thank you so much and I hope there is a solution","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":25,"Q_Id":63599695,"Users Score":0,"Answer":"After deletion it is not possible to recover Datastore data unless a backup is available. Usually backups are not necessary as data is replicated across multiple data centers.","Q_Score":0,"Tags":"python,web-deployment,gcloud,datastore","A_Id":63602954,"CreationDate":"2020-08-26T14:20:00.000","Title":"Deleted accidentaly folder with projects deployed on gcloud datastore","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"PRAAT provides a way: \"Process-> Change formants...\", but if I use Parselmouth call:\nsound = call(sound0, \"Change formants...\", f1, f2, f3, f4, 0, 5000)\nI get:\n\"parselmouth.PraatError: Command \"Change formants...\" not available for given objects.\"\nI really like Parselmouth, but I do wish more examples were available.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":200,"Q_Id":63620262,"Users Score":0,"Answer":"Can be using \"parselmouth.praat.run_file(path_to_script, parameters)\".\nPath to script can be obtained from PRAAT's Process->script (in the opened window will be shown path). Doesn't immediately work with some scripts though...\nAs in case of 'Changeformants.praat' had to comment line20 (\"include batch.praat\") and then:\nsound = parselmouth.praat.run_file(sound0, path_to_script, f1, f2, f3, f4,0,5000, True, False)\ndid work.","Q_Score":1,"Tags":"python,praat","A_Id":63629548,"CreationDate":"2020-08-27T16:21:00.000","Title":"Is there a way to change formants using parselmouth (python PRAAT wrapper) or other python libraries?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I've worked through all the threads concerning this problem but haven't found anything.\nWhenever I try to download a file from Wasabi S3, I get a 403 forbidden error. The file is uploaded with a pre-signed url that was signed with the same access key as the one I am using for the download request.\nFor the signed url I tried setting the ACL to \"private\" as well as \"public-read\". But that hasn't changed anything. I did also experiment with different access keys with different permissions for signing and downloading. But also no change.\nAny more suggestions would be highly appreciated.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":435,"Q_Id":63630434,"Users Score":0,"Answer":"Long story short, the endpoint_url parameter is not optional when initializing boto3.client.","Q_Score":0,"Tags":"python,amazon-s3,boto3,pre-signed-url,wasabi","A_Id":63686436,"CreationDate":"2020-08-28T08:46:00.000","Title":"boto3 upload_file() 403 forbidden with Wasabi S3","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"For Example:\nI have developed a django Application which contains four apps inside called app_1, app_2, app_3 and app_4.\nNow I want to deploy app_1 on server_1, app_2 on sever_2, app_3 on server_3 and app_4 on server_4.\nIs it possible??","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":185,"Q_Id":63631242,"Users Score":0,"Answer":"No, i don't think deploying each apps to different server is possible if all the apps are entitled same project.","Q_Score":1,"Tags":"python,django,amazon-web-services,hosting","A_Id":63631710,"CreationDate":"2020-08-28T09:39:00.000","Title":"How to deploy each app of a Django project into different servers","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a site build in site123 (site123 is a WYSIWYG and it dose not support code export). I use it as a nice designed landing page and product's catalog. so I have:\nhttps:\/\/app.site123.com\/?w=my_site this site has no back-end (not supported by site123). and I have another site build in django for payments and other stuff like this I host it on pythonanywhere, So I also have http:\/\/my_website_with_backed.pythonanywhere.com\/.\nNow, I buy a domain from GoDaddy and I would like to know if there is a way to connect the 2 websites under the same url??. like:\nsite123 website: www.catalog.my_own_url.com\ndjango website: www.payment.my_own_url.com\nThank you","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":42,"Q_Id":63648415,"Users Score":2,"Answer":"You can do a redirect from the subdomains to your page but in this case you will have the 3rd party URL displayed and not your subdomain.\n\nYou can probably use a simple HTML structure with iFrames to include your page. Like connecting your subdomains with a server and hosting there a HTML page which loads your python or WYSIWYG page.\n\nIf site123 is a static landing page without many changes or dynamic elements, I would think about scraping it with a script and transfer it to a server which also supports python (e.g. Amazon AWS). In this case you can get rid of pythonanymwhere and use your subdomains.\nThen you can either use site123 (and scrape it every night for example) or use another WYSIWYG editor to build a page and deploy it to your server.","Q_Score":0,"Tags":"python,django,url,dns,pythonanywhere","A_Id":63648634,"CreationDate":"2020-08-29T15:00:00.000","Title":"How to host number of websites under similer url","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Currently I am learning django and learning migration related stuff.\nI have found that we can migrate specific app using python manage.py migrate app-name but not found how to migrate specific migration file named python manage.py migrate 0024_auto_20200827_0706.py.\nIf I will do python manage.py migrate 0024_auto_20200827_0706.py, it will revert migration from this point or file but not doing migrate for this specific file.\nMy question : is it possible to do migrate for specific file if yes then How is it possible?\nThanks.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":912,"Q_Id":63665981,"Users Score":1,"Answer":"No, it is not possible to directly run a single migration out of sequence.\nIf the migration is a data migration of some sort that could otherwise be run out of sequence (i.e. it doesn't depend on schema changes, or is dangerous to run), I would recommend refactoring it into\n\na \"migration utility\" function in e.g. myapp\/migration_utils\nthe migration itself that just calls the above function\na management command that calls the above function\n\nThen you can call the management command manually should you need to, but the migration would be run in-sequence otherwise.","Q_Score":3,"Tags":"python,django,database,migrate","A_Id":63666408,"CreationDate":"2020-08-31T06:42:00.000","Title":"In Django , Is it possible to migrate any perticular specific file?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Hello I have a problem with a Django project. When I ran in Pycharm the celery I got this error :\nNo module named 'notifications.signals'; 'notifications' is not a package\nAlthought when I type in Python Console this :\nfrom notifications.signals import notify\nCould you help me please ?\nThank you very much","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":322,"Q_Id":63668377,"Users Score":0,"Answer":"If you configure PyCharm to use the same environment that you used when you executed successfully the import statement, then it will all work as expected.","Q_Score":0,"Tags":"python-3.x,django,notifications,celery","A_Id":63669292,"CreationDate":"2020-08-31T09:40:00.000","Title":"No module names 'notifications.signals'; 'notifications' is not a package","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I wanted to read this article online and something popped and I thought that I want to read it offline after I have successfully extracted it... so here I am after 4 weeks of trials and all the problem is down to is I the crawler can't seem to read the content of the webpages even after all of the ruckus...\nthe initial problem was that all of the info was not present on one page so is used the button to navigate the content of the website itself...\nI've tried BeautifulSoup but it can't seem to parse the page very well. I'm using selenium and chromedriver at the moment.\nThe reason for crawler not being able to read the page seems to be the robot.txt file (the waiting time for crawlers for a single page is 3600 and the article has about 10 pages, which is bearable but what would happen if it were to say 100+)and I don't know how to bypass it or go around it.\nAny help??","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":82,"Q_Id":63678927,"Users Score":1,"Answer":"If robots.txt puts limitations then that's the end of it. You should be web-scraping ethically and this means if the owner of the site wants you to wait 3600 seconds between requests then so be it.\nEven if robots.txt doesn't stipulate wait times you should still be mindful. Small business \/ website owners might not know of this and by you hammering a website constantly it could be costly to them.","Q_Score":0,"Tags":"python,selenium,web-crawler,dynamic-pages","A_Id":63679106,"CreationDate":"2020-08-31T22:22:00.000","Title":"dynamic web page crawler using python","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have refactored my app and project names, but after that Django doesn't create migrations folder in my app and doesn't actually apply my models migrations.\nEven after migrations (with no warning nor error) I have no tables with my objects.\nDoes anybody know how to force django to do those migrations?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":29,"Q_Id":63683898,"Users Score":0,"Answer":"There can multiple reasons behind it. Please check following if you are missing something.\n\nThe app must have migrations\/__init__.py folder. It automatically creates but if you did code refactoring. You can miss this.\n\nCheck INSTALLED_APPS in settings.py it should have the same app name as in admin.py.","Q_Score":0,"Tags":"python,django","A_Id":63685472,"CreationDate":"2020-09-01T08:20:00.000","Title":"Django - no migrations folder after refactoring projects and apps names","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Getting CharConversionException in python Jaydebeapi when trying to pull data ? Not sure where how to set db2.jcc.charsetDecoderEncoder property in python to resolve this.\nExact error - com.ibm.db2.jcc.am.SqlException: com.ibm.db2.jcc.am.SqlException: [jcc][t4][1065][12306][4.25.13] Caught java.io.CharConversionException.  See attached Throwable for details. ERRORCODE=-4220, SQLSTATE=null\nPlease help in setting charsetDecoderEncoder property in python. Thanks in advance!","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":125,"Q_Id":63693218,"Users Score":0,"Answer":"Since you've tagged this with WebSphere, I assume you're trying to use wsadmin to invoke a jython script, if so do something like wsadmin -D<propName>=<propValue> -f myJythonScript.py.","Q_Score":0,"Tags":"python,db2,jpype,jaydebeapi","A_Id":63696179,"CreationDate":"2020-09-01T18:10:00.000","Title":"Jaydebeapi giving error in python for CharConversionException","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"New to running Python in virtual environments, messing with Django, and can't activate a virtual environment.\nSpent the last 4 hrs trying to activate a virtual env (venv) on local terminal\/VS Code with no luck.\nAvoided \"sudo pip install virtualenv\" as I was trying to avoid installing as root and having different directory path, etc.\n\"pip install virtualenv\" output:\nCollecting virtualenv\nUsing cached virtualenv-20.0.31-py2.py3-none-any.whl (4.9 MB)\n\nRequirement already satisfied: six<2,>=1.9.0 in \/Users\/garrettpinto\/Library\/Python\/3.8\/lib\/python\/site-packages (from virtualenv) (1.15.0)\n\nRequirement already satisfied: appdirs<2,>=1.4.3 in \/Users\/garrettpinto\/Library\/Python\/3.8\/lib\/python\/site-packages (from virtualenv) (1.4.4)\n\nRequirement already satisfied: filelock<4,>=3.0.0 in \/Users\/garrettpinto\/Library\/Python\/3.8\/lib\/python\/site-packages (from virtualenv) (3.0.12)\n\nRequirement already satisfied: distlib<1,>=0.3.1 in \/Users\/garrettpinto\/Library\/Python\/3.8\/lib\/python\/site-packages (from virtualenv) (0.3.1)\n\nInstalling collected packages: virtualenv\n\nSuccessfully installed virtualenv-20.0.31\n\"virtualenv venv\" output:\ncreated virtual environment CPython3.8.5.final.0-64 in 416ms\n\ncreator CPython3Posix(dest=\/Users\/garrettpinto\/Desktop\/rp-portfolio\/distribution\/venv, clear=False, global=False)\n\nseeder FromAppData(download=False, pip=bundle, setuptools=bundle, wheel=bundle, via=copy, app_data_dir=\/Users\/garrettpinto\/Library\/Application Support\/virtualenv)\n\nadded seed packages: pip==20.2.2, setuptools==49.6.0, wheel==0.35.1\n\nactivators BashActivator,CShellActivator,FishActivator,PowerShellActivator,PythonActivator,XonshActivator\n\"source venv\/bin\/activate\" returns nothing\n\".\/venv\/bin\/activate\" output:\nzsh: permission denied: .\/venv\/bin\/activate\n\"sudo .\/venv\/bin\/activate\" output:\nsudo: .\/venv\/bin\/activate: command not found\nThoughts?","AnswerCount":4,"Available Count":1,"Score":0.049958375,"is_accepted":false,"ViewCount":13991,"Q_Id":63694874,"Users Score":1,"Answer":"Solution of the problem of virtual environment created but not activated.\n\nto make activate just add a space between .(dot) and your venv path. i,e \n$ . yourvirtualenv\/bin\/activate\nHope this will work. But not use like:\n$ yourvirtualenv\/bin\/activate\nor\n$ \/yourvirtualenv\/bin\/activate\n\nHere is my command and the output:\n\nadmin@osboxes:~\/pysrc$ . my_env\/bin\/activate\n(my_env) admin@osboxes:~\/pysrc$ \n\nOutput of the wrong command:\n\nadmin@osboxes:~\/pysrc$ my_env\/bin\/activate\nbash: my_env\/bin\/activate: Permission denied\nadmin@osboxes:~\/pysrc$ sudo my_env\/bin\/activate\n[sudo] password for admin: \nsudo: my_env\/bin\/activate: command not found\nadmin@osboxes:~\/pysrc$ my_env\/bin\/activate\nbash: my_env\/bin\/activate: Permission denied\nadmin@osboxes:~\/pysrc$","Q_Score":1,"Tags":"python,django,pip,virtualenv,python-venv","A_Id":67117505,"CreationDate":"2020-09-01T20:17:00.000","Title":"Can't \"activate\" virtualenv","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"Tldr: Is it feasible to create a web tool\/app that relies on server side Selenium automation.\nCreated a local script that automates form filling for car insurance quote websites and returns the cost to insure. Ie fill one form and it auto fills every other providers quote form and returns quotes.\nBut now I want to extend that functionality to others via some sort of webapp [flask\/Django?] that handles a clients requests server side by fetching that information and returning it to the client based on their inputs.\nWhat I\u2019m struggling with is Selenium is limited to 5 web drivers (locally) I believe, and is resource intensive, so to me that means at most you can handle 5 website requests at once?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":105,"Q_Id":63702116,"Users Score":0,"Answer":"The short answer is YES.\nThe idea to solve the problem is as follows:\n\nCreate a web app which can fetch user's inputs and return something back to user. Just like the most common website.\nCreate a service in the web app. The service can handle what you wanted using Selenium, such as, filling form of car insurance and getting the cost to insure.\nCreate a webpage or API in the web app. The webpage\/API calls the service mentioned above. When user use the webpage\/API, Selenium will automate to do something.\n\nSo, it's done.","Q_Score":0,"Tags":"python,selenium,server,client","A_Id":63718920,"CreationDate":"2020-09-02T08:58:00.000","Title":"Feasible? Form automation webapp with selenium - [server side]","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have written a python program to download YouTube videos. I want to add it as an extension to browser, but I have read that browser doesn't run python scripts. So how can I deploy it? Can I convert it into a software which when installed can be added as a plug-in to the browser? Or is there any other way of doing it?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":97,"Q_Id":63716152,"Users Score":0,"Answer":"I assume you are aware of the chrome extension\/plugin development, If not, please go through online tutorials,  Fast forward...\nAdding Python to the Chrome extension\nWe have two options to add Python into a chrome extension:\nMethod 1: Include\n\nBrython\n\nin an iframe (requires server)\nTo run Python in the browser you have several options including Brython and emcascripten.\nMethod 2: Compile Python to Javascript using\n\nRapydscript\n\n(best, serverless, pure extension.)\nThere are several tools to compile Python to Javascript. Rapydscript works fine, Pyjs does not work well with chrome.\nFurther, you can do your research.","Q_Score":0,"Tags":"python-3.x,youtube-api,browser-extension,browser-plugin","A_Id":63720439,"CreationDate":"2020-09-03T03:00:00.000","Title":"How to create a software that can be used as a browser extension in python?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"In odoo 12,\nHow to keep a wizard open (in background) when I call up on an action button which opens an ir.actions.act_window ? The main wizard keeps getting closed.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":76,"Q_Id":63727044,"Users Score":0,"Answer":"This is Odoo default behavior, if you are opening new ir.actions.act_window with 'target' as 'new', what you can do is on the button action return the previous ir.actions.act_window.","Q_Score":0,"Tags":"python,xml,odoo,odoo-12","A_Id":63731330,"CreationDate":"2020-09-03T15:36:00.000","Title":"How to keep wizard open in background when I call up on an action button in odoo 12","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have the project successfully deployed through AWS. However, I would like to make some changes and experiment on them using localhost:8000\/ first before making the changes to AWS server. I set my settings.py to: ALLOWED_HOSTS = ['IP address', 'www.website.com'] to deploy it. Though, I also want to be able to run the server in my local computer so I can experiment it before showing to public. The url is (r^homepage$') When I go to localhost:8000\/homepage, it gives a Bad Request (400). I tried many permutations of the urls but nothing works.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":1097,"Q_Id":63732724,"Users Score":1,"Answer":"you can set Debug=True to see the error message.","Q_Score":0,"Tags":"python,django,server,localhost,bad-request","A_Id":63742098,"CreationDate":"2020-09-03T23:00:00.000","Title":"Bad request (400) on Django Localhost","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I tried all possibilities for this issue in Django but it's not resolved at. it will not create 0001_initial.py I tried many ways.\npython manage.py showmigrations\npython manage.py makemigrations \npython manage.py migrate","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":131,"Q_Id":63734734,"Users Score":0,"Answer":"You should first check that you have created your database on settings.py:\nDATABASES = {'default': {'ENGINE': 'django.db.backends.sqlite3','NAME': 'mydatabase',}}\nNext make sure that you have created an app using python manage.py startapp appname\nIf that is done you also want to make sure that you actually have a database model made on models.py.\nThen run:\npython manage.py makemigrations appname\npython manage.py migrate","Q_Score":0,"Tags":"python,django,sqlite,django-models","A_Id":63734800,"CreationDate":"2020-09-04T04:11:00.000","Title":"Exception Value:no such table: appname_tablename?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have written an SEM (Scanning electron image)-image analysis program in Python which is capable of calculating all the microstructural properties in an SEM image e.g. Identification of different areas in the image 2) calculate the area of specific regions in microns, diameters, circularity, etc. The final results are in the form of a graph(area in microns vs cumulative frequency vs percentage contribution) plotted with the help of Matplotlibrary in Python. I want to give this program on a server where anyone can use it through an interface without looking at the code. I am confused that what should I use to do so? Will Django be a good choice for this? But I suspect Django cannot perform all the tasks (Not sure). I have also read about Jenkins servers. Please guide me which approach should I use to deploy this image analysis program for any user on a server. Thanks","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":48,"Q_Id":63735250,"Users Score":0,"Answer":"Cool stuff!\nIf you want to make a server where other user can interact with your program using a user interface then yes Django (or even better Flask) will work.\nA very basic structure for your program is to have one endpoint which will render a simple html home page with a form input for uploading a file. Once the file is uploaded, the form is shipped to your backend which will accept the file and give it as an input to your python function for SEM file analysis. The function could then generate a figure which the user will be able to download. That would however require setting up a database (which is usually simple with Django). So yes you can go either with Django or Flask and everything should fall into place.\nHowever, be careful with research project aimed towards people that do not want to deal with scripting or code. I've made a few research project like this for brain imaging data (with a GUI and all) and all of these project ended up being a huge time sink. There will be updates to the analysis to do, bugs on the user interface to fix and cryptic compatibility issues. I've come to the realization that it is much better to have the minimal amount of user interface for a project like this and spend more time documenting how to make the code run on the command line using a well crafted README.md. This allows you to focus on what has a lot of value for your research and also helps other people learn valuable skills.\nAnyway, that last paragraph was just my opinion! If you feel like setting up a full-blown website for this project go for it!","Q_Score":1,"Tags":"python,django,user-interface,data-visualization,web-frameworks","A_Id":63736679,"CreationDate":"2020-09-04T05:19:00.000","Title":"What should I use to deploy a python based image analysis program for an end-user on a server","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have an existing flask application (having a bunch of REST apis) which is  hosted by Gunicorn. I also have to send and receive messages from AmazonMQ in the same application. I have functions using stomp.py to send\/receive messages from AmazonMQ, but I am not sure where to place them, or how should I use them so as to keep existing flow intact","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":202,"Q_Id":63741450,"Users Score":0,"Answer":"Hey thanks for help @AKX,\nI resolved the issue by triggering the whole process of messaging (Creation of connection, subscription to channel etc) by a method call from\non_starting(server)\nmethod in gunicorn_config.py","Q_Score":0,"Tags":"python,flask,gunicorn,amazon-mq,stomp.py","A_Id":64073682,"CreationDate":"2020-09-04T12:44:00.000","Title":"Placing stomp.py consumer\/producer inside Flask-Gunicorn python application","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to make a \/subscribe endpoint that will add the client to a list that will be notified with a webhook when an event happens. How can I get the data from flask needed to connect to the client later so I can then send a POST in requests later?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":38,"Q_Id":63746471,"Users Score":0,"Answer":"You can not store the connection details.\n\nThere is nothing called CONNECTION. It is just an HTTP request from one server to the other.\nAll HTTP requests are just messages that you (Browser or a server) sends to another server asking for something like \"Can I view your website?\" or \"Can you send me this data?\" etc.,\n\n\nPossible solution for you:\n\nI have worked on webhooks for one of your products in our company and the best way to give the ability to create a webhook to your client is, asking for their endpoint.\n\n\nWhat I did:\n\n\nI ask the client for their endpoint so that I can call it whenever there is an event.\nAsk them to create and share a secret_key so that no one else can call that endpoint other than you.\nCall that endpoint using their secret_key whenever there is an event.\n\nAbove is just an outline of how it is done (Or at least how I did it).","Q_Score":0,"Tags":"python,flask,python-requests","A_Id":63747062,"CreationDate":"2020-09-04T18:38:00.000","Title":"Flask: How can I store the connection details of clients [Inside NAT], so I can POST them a webhook later?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I need to develop a web service with RESTful API on Django. I would be grateful if someone could clarify a few questions and point me in the right direction.\nIt has to connect to a remote database and perform long queries and then return the rows to a user (I plan on returning csv files)\nI chose Django as a framework, but I am a bit lost with all the things I read\n\nSince queries take a long time to finish , the service should somehow work in async. The async concept in regards to web services especially in connection to Django is really complicated to grasp.\nWould using new Django 3.x async features be enough for this task?\nI've read about Celery the queue manager that is supposed to provide some degree of parallelisation (am I correct on this?)\nI've also read about nginx + wsgi + Django. Should I go with that?\n\nIn regards to nginx and other web servers. Am I correct in understanding that Django in itself can function as a web server, but nginx can be used to somehow better the performance of a Django application?\n\nShould I use \"django rest framework\" for the task?\n\n\nThank you!","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":93,"Q_Id":63749658,"Users Score":1,"Answer":"Your question: \"Django in itself can function as a web server?\":\nDjango's http server service is for developer's convenience and needs only. The developer can test the application in easy way. In no circumstances is Django's http server service appropriate to be used in production environment, not just  because of performance.\nFurther:\nYour questions regarding concept:\nthere are \"hundred options\" how you can  meet the project requirements. If this is a serious project (not just for exercise purpose), in the light of your questions, the only answer is: use a technology you are best familiar with.","Q_Score":0,"Tags":"python,django,nginx,asynchronous,server","A_Id":63759093,"CreationDate":"2020-09-05T01:25:00.000","Title":"Django web service stack and concepts questions","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am building a website where user come and login, after login user publish articles with admin approval . I do not know how to do it. I made a user authentication system where user can login. But i do not know how to make him post data with admin approval.","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":1284,"Q_Id":63752589,"Users Score":0,"Answer":"That's a Good one. You can enable this with adding a new column to your database like onapproval Set it as an boolean variable like 0 or 1 either true or false. Then check for it. If it's true you can set the status as approved and if it is not set it as not approved. The same process will also takes place in admin panel too.","Q_Score":0,"Tags":"python,django,view,admin","A_Id":63752633,"CreationDate":"2020-09-05T09:50:00.000","Title":"how to implement an admin approval system for posting blogs in pythondjango","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Question: I want to log the warning in odoo logs if any warning or error comes up.\nIs there any way out of it?\nThanks in advance.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":453,"Q_Id":63769570,"Users Score":2,"Answer":"Please user logger to print the logs in terminal\nTry\n\nimport logging\n\n\nlogger = logging.getLogger(__name__)\n\nUse like this:-\n\n_logger.debug(\" my log in terminal\")","Q_Score":0,"Tags":"python,python-3.x,logging,printing,odoo","A_Id":63771551,"CreationDate":"2020-09-06T22:53:00.000","Title":"How to log warning, error and other info in Odoo development?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I've set up a virtualenv folder via python -m venv virtualenv, alongside my backend folder containing flask code.\nHowever, when I run the flask code, it can't find the flask module. I installed it while the virtualenv was active, and if I try running it while the virtualenv is active, then it works correctly and finds flask. But if I deactivate the virtualenv, no dice. It can't find the dependencies.\nIs that how this is supposed to work, or have I misconfigured something? Do I need to always be working with the virtualenv active? Seems wrong to me.","AnswerCount":2,"Available Count":2,"Score":1.2,"is_accepted":true,"ViewCount":47,"Q_Id":63770655,"Users Score":2,"Answer":"Yes that is the intended behavior. But...\nYou don't need to \"activate\" any virtual environment. The important point is to make sure to use the interpreter that is located in the virtual environment.\nSay you run python -m venv \/path\/to\/venv. The virtual environment is created at \/path\/to\/venv and you will find a Python interpreter executable (or a symbolic link) at \/path\/to\/venv\/bin\/python.\nYou can then call \/path\/to\/venv\/bin\/python -m pip install flask. And also \/path\/to\/venv\/bin\/python \/path\/to\/some_script.py. These will all take advantage of the virtual environment isolation.\n\nAnd when you activate the virtual environment, the \/path\/to\/venv\/bin directory is placed at the top of the PATH environment variable, so that when you type python, the first python executable found is automatically \/path\/to\/venv\/bin\/python.","Q_Score":1,"Tags":"python,virtualenv,python-venv","A_Id":63774780,"CreationDate":"2020-09-07T02:33:00.000","Title":"Are you supposed to need to be in the virtualenv whenever running code in order to access the installed dependencies?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I've set up a virtualenv folder via python -m venv virtualenv, alongside my backend folder containing flask code.\nHowever, when I run the flask code, it can't find the flask module. I installed it while the virtualenv was active, and if I try running it while the virtualenv is active, then it works correctly and finds flask. But if I deactivate the virtualenv, no dice. It can't find the dependencies.\nIs that how this is supposed to work, or have I misconfigured something? Do I need to always be working with the virtualenv active? Seems wrong to me.","AnswerCount":2,"Available Count":2,"Score":0.0996679946,"is_accepted":false,"ViewCount":47,"Q_Id":63770655,"Users Score":1,"Answer":"Actually when you install dependencies in a virtual env then u must activate it before running the project, But u can also install dependencies directly to the system through the terminal (outside of virtual env) and can run the project.\nIt is preferred to have a virtual environment in order to keep your project dependencies and extra dependencies separate. As for big projects, you can easily collect the necessary dependencies without taking count of which are not used.","Q_Score":1,"Tags":"python,virtualenv,python-venv","A_Id":63770699,"CreationDate":"2020-09-07T02:33:00.000","Title":"Are you supposed to need to be in the virtualenv whenever running code in order to access the installed dependencies?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am running a flask web server on raspberry pi 3 B+. I am able to access the page 192.168.4.1:5000 on the berry(chromium).\nThe same raspberry pi is also acting as a wireless LAN router. I am able to connect my other devices like ipad and phone to this wifi network. So there is no additional router in this network where I might need to do port forwarding.\nIssue is, I am not able to access 192.168.4.1:5000 from any other device on this local network.\nPlease note that I am not using the ethernet port on the raspberry pi.\nPlease help!","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":1459,"Q_Id":63774624,"Users Score":0,"Answer":"Okay so the solution was to add a route.\nI did\nsudo ip route add 192.168.4.0\/24 via 192.168.4.1 dev wlan0\nNow I am trying to figure out how to make this route persistent.","Q_Score":1,"Tags":"python,flask,raspberry-pi,webserver,hotspot","A_Id":63777385,"CreationDate":"2020-09-07T09:12:00.000","Title":"Not able to access web server on Raspberry pi on local network","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"My goal is to install a package to a specific directory on my machine so I can package it up to be used with AWS Lambda.\nHere is what I have tried:\npip install snowflake-connector-python -t .\npip install --system --target=C:\\Users\\path2folder --install-option=--install-scripts=C:\\Users\\path2folder --upgrade snowflake-connector-python\nBoth of these options have returned the following error message:\nERROR: Can not combine '--user' and '--target'\nIn order for the AWS Lambda function to work, I need to have my dependencies installed in a specific directory to create a .zip file for deployment. I have searched through Google and StackOverflow, but have not seen a thread that has answered this issue.\nUpdate: This does not seem to be a problem on Mac. The issue described is on Windows 10.","AnswerCount":3,"Available Count":3,"Score":1.0,"is_accepted":false,"ViewCount":11156,"Q_Id":63783587,"Users Score":8,"Answer":"We had the same issue just in a Python course: The error comes up if Python is installed as an app from the Microsoft app store. In our case it was resolved after re-installing Python by downloading and using the installation package directly from the Python website.","Q_Score":11,"Tags":"python,pip,command-line-interface","A_Id":63812237,"CreationDate":"2020-09-07T20:03:00.000","Title":"PIP Install: Cannot combine --user and --target","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":1,"Web Development":1},{"Question":"My goal is to install a package to a specific directory on my machine so I can package it up to be used with AWS Lambda.\nHere is what I have tried:\npip install snowflake-connector-python -t .\npip install --system --target=C:\\Users\\path2folder --install-option=--install-scripts=C:\\Users\\path2folder --upgrade snowflake-connector-python\nBoth of these options have returned the following error message:\nERROR: Can not combine '--user' and '--target'\nIn order for the AWS Lambda function to work, I need to have my dependencies installed in a specific directory to create a .zip file for deployment. I have searched through Google and StackOverflow, but have not seen a thread that has answered this issue.\nUpdate: This does not seem to be a problem on Mac. The issue described is on Windows 10.","AnswerCount":3,"Available Count":3,"Score":0.0,"is_accepted":false,"ViewCount":11156,"Q_Id":63783587,"Users Score":0,"Answer":"I got a similar error recently. Adding my solution so that it might help someone facing the error due to the same reason.\nI was facing an issue where all my pip installed packages were going to an older python brew installation folder.\nAs part of debugging, I was trying to install awscli-local package to user site-package using:\npip install --user awscli-local\nThen I got:\nERROR: cannot combine --user and --target\nIn my case, it was due to the changes in pip config I had set some time back for some other reason.\nI had set the 'target' config globally - removing which removed this error and my actual issue I was debugging for.\n\nCheck the following if solutions given above doesn't resolve your issue:\ntry the command:\npip config edit --editor <your_text_editor>\nFor me:\npip config edit --editor sublime\nThis will open the current config file where you can check if there's any conflicting configuration like the 'target' set in my case.","Q_Score":11,"Tags":"python,pip,command-line-interface","A_Id":69517869,"CreationDate":"2020-09-07T20:03:00.000","Title":"PIP Install: Cannot combine --user and --target","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":1,"Web Development":1},{"Question":"My goal is to install a package to a specific directory on my machine so I can package it up to be used with AWS Lambda.\nHere is what I have tried:\npip install snowflake-connector-python -t .\npip install --system --target=C:\\Users\\path2folder --install-option=--install-scripts=C:\\Users\\path2folder --upgrade snowflake-connector-python\nBoth of these options have returned the following error message:\nERROR: Can not combine '--user' and '--target'\nIn order for the AWS Lambda function to work, I need to have my dependencies installed in a specific directory to create a .zip file for deployment. I have searched through Google and StackOverflow, but have not seen a thread that has answered this issue.\nUpdate: This does not seem to be a problem on Mac. The issue described is on Windows 10.","AnswerCount":3,"Available Count":3,"Score":1.0,"is_accepted":false,"ViewCount":11156,"Q_Id":63783587,"Users Score":18,"Answer":"We encountered the same issue when running pip install --target .\/py_pkg -r requirements.txt --upgrade with Microsoft store version of Python 3.9.\nAdding --no-user to the end of it seems solves the issue. Maybe you can try that in your command and let us know if this solution works?\npip install --target .\/py_pkg -r requirements.txt --upgrade --no-user","Q_Score":11,"Tags":"python,pip,command-line-interface","A_Id":67259534,"CreationDate":"2020-09-07T20:03:00.000","Title":"PIP Install: Cannot combine --user and --target","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":1,"Web Development":1},{"Question":"I am using the django framework. I'll do the messaging part. I will do this with the socket. However, I always come across a channel library. Is there no other solution?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":34,"Q_Id":63784910,"Users Score":1,"Answer":"Without writing your own socket library, Channels is as close as you're going to get to official support. You could use Tornado (a different framework) for lower-level handling of simpler cases, but as far as Django goes, Channels is the normal pathway.\nIs there a reason you didn't want to use Channels?","Q_Score":0,"Tags":"python,django,sockets,channels","A_Id":63785043,"CreationDate":"2020-09-07T22:18:00.000","Title":"Is channels required to use socket with django? Is there any other alternative or way?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am new to web scraping and am not very familiar with requests and BeautifulSoup.\nI am trying to scrape an aspx website with BeautifulSoup. But to get the values I want to scrape, I first need to select a drop down value, input an ID, and then press submit.\nIs this even possible?\nAny help would be much appreciated!","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":47,"Q_Id":63785020,"Users Score":0,"Answer":"Maybe try to input the url that you get after you have made all the selections from dropdowns. Otherwise.. using Selenium is best bet.","Q_Score":0,"Tags":"python,web-scraping,beautifulsoup,python-requests","A_Id":63785808,"CreationDate":"2020-09-07T22:34:00.000","Title":"Scraping with BeautifulSoup, but first have to input values?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"So I am working on a small project that includes Python and a Firebase realtime database.\nBy now I have everything pretty much finished and the only thing I want to add is that it is hosted by Firebase as well.\nCan one run a python file via the firebase servecommand in order to host my web-app using Firebase?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":313,"Q_Id":63785755,"Users Score":0,"Answer":"The Firebase CLI isn't meant for hosting.  You're supposed to deploy your project to have it hosted in the cloud using the URL it provides for you.\nAfter you do that, bear in mind that it will only host static web assets like HTML, CSS, and JS.  It will not run python programs.  If you want to run code on your backend, you should look into integrating Firebase Hosting with Cloud Functions.  You can run python in Cloud Functions.","Q_Score":0,"Tags":"python,firebase,firebase-realtime-database,firebase-hosting,firebase-tools","A_Id":63785889,"CreationDate":"2020-09-08T00:44:00.000","Title":"Run Python script with `firebase serve`","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Is there a way to pass SSEKMSKeyId and ServerSideEncryption to scrapy FilesPipeline using AWS S3 or do I need to write a separate pipeline?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":134,"Q_Id":63790967,"Users Score":0,"Answer":"Subclass scrapy.pipelines.files.S3FilesStore, and extend its HEADERS class attribute in your subclass to define the headers you want with the values you want.\nIn your case, the corresponding headers are: X-Amz-Server-Side-Encryption, X-Amz-Server-Side-Encryption-Aws-Kms-Key-Id (you can see the header-to-key mapping in the source code of the class, for additional header names).\n\nSubclass FilesPipeline, and edit the STORE_SCHEMES class attribute in your subclass to point s3 to your S3FilesStore subclass.\n\nUpdate your ITEM_PIPELINES setting to use your FilesPipeline subclass.","Q_Score":0,"Tags":"python,amazon-web-services,amazon-s3,scrapy","A_Id":63917828,"CreationDate":"2020-09-08T09:25:00.000","Title":"Is there a way to pass SSEKMSKeyId and ServerSideEncryption to scrapy FilesPipeline using AWS S3?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm trying to compile a Django (3) applications that uses pymongo and channels. I followed steps in a ticket in stackoverflow, I got the .exe file but when I try tu run it using app.exe runserver I got this error :\n\\AppData\\Local\\Temp\\_MEI149762\\Test_Project\\settings.pyc'\nFailed to execute script manage\nI've found nothing on the net discussing this issues.\nHELP PLEASE.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":177,"Q_Id":63793921,"Users Score":0,"Answer":"Did you try to add --onefile parameter ?","Q_Score":0,"Tags":"python,django,mongodb,pymongo,pyinstaller","A_Id":63794033,"CreationDate":"2020-09-08T12:25:00.000","Title":"DJANGO PYINSTALLER ISSUE","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I was using Django-python framework for my web app. When I build a strategy in the UI it gets converted into a .py script file and every 5 mins (can be variable based on my candle interval) the file gets executed. I was using celery beat to invoke the file execution and the execution happens on the same machine using celery.\nHere the problem is actually with scalability, if I have more strategies my CPU and memory usage were going more than 90%. How do I design the server architecture so that it can scale. Thank you.","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":123,"Q_Id":63793935,"Users Score":1,"Answer":"When one Celery worker is no longer enough, you create more. This is quite easy if you are on a cloud platform where you can easily create more virtual machines.\nIf you can't create more, than you have to live with the current situation and try to spread the execution of your strategies across a longer period of time (throughout the day I suppose).","Q_Score":0,"Tags":"python,server,architecture,celery,algorithmic-trading","A_Id":63794819,"CreationDate":"2020-09-08T12:26:00.000","Title":"How to design architecture for scalable algo trading application?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"Does the python script have to be named as handler.py in AWS Lambda?\nI can't remember where I read this from, it says lambda is configured to look for a specific file, usually named 'handler.py',just wondering where we can configure this or does it have to be 'handler.py'? Thanks.","AnswerCount":3,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":641,"Q_Id":63797601,"Users Score":2,"Answer":"You can name this Python script whatever you want. Be sure to reference it properly.\n\nYou can tell the Lambda runtime which handler method to invoke by setting the handler parameter on your function's configuration.\n\n\nWhen you configure a function in Python, the value of the handler setting is the file name and the name of the handler module, separated by a dot. For example, main.Handler calls the Handler method defined in main.py.","Q_Score":1,"Tags":"python,amazon-web-services,aws-lambda,handler","A_Id":63797939,"CreationDate":"2020-09-08T16:01:00.000","Title":"Does the python script have to be named as handler.py in AWS Lambda","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a database using PostgreSQL but the published site is Vercel and when deploying for production is gives the error below. The error doesn't happen for Heroku\ndjango.db.utils.OperationalError: FATAL:  no pg_hba.conf entry for host \"123.456.789.102\", user \"example_user\", database \"example_db\", SSL off\nHow do I solve this error, thank you. I have checked Google results aren't really helpful","AnswerCount":2,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":206,"Q_Id":63797999,"Users Score":0,"Answer":"I found the answer out. It was just not to use Heroku but instead I used a service called ElephantSQL and used the details and it worked perfectly well","Q_Score":0,"Tags":"python,django,postgresql","A_Id":65493860,"CreationDate":"2020-09-08T16:27:00.000","Title":"How to solve error with syncing PostgreSQL with Vercel","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I wrote a python script which is deployed in a EC2 Instance and lets say this EC2 reside in AWS account A1. Now my script from A1 want to access 10 other AWS account.\nAnd remember I don't have any AWS_ACCESS_KEY or SECRET_KEY of any account cause using AWS_ACCESS_KEY or SECRET_KEY is strictly prohibited here.\nI can easily do that if I have access key. But I can't figure it out how can I do that without access key?\nIs there any possible way to do that?","AnswerCount":3,"Available Count":1,"Score":0.1325487884,"is_accepted":false,"ViewCount":234,"Q_Id":63810941,"Users Score":2,"Answer":"The EC2 should assume an IAM Role.\nThen log in to all your 10 other accounts and create roles there. These roles should give cross account access to the EC2 instance role. It is also in these roles that you define what permissions the EC2 instance should have.","Q_Score":0,"Tags":"python,python-3.x,amazon-web-services,boto3","A_Id":63811205,"CreationDate":"2020-09-09T11:43:00.000","Title":"Accessing multiple AWS accounts using boto3 without secret key?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I create a django project called Polls and i have one project called registration but anytime i run my polls server it always go to the registration server and display things there also my migrations doesnt go to the polls server","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":102,"Q_Id":63813074,"Users Score":0,"Answer":"When you start the server, The default port is 8000(127.0.0.1:8000)\nif you want to run multiple django projects try using different ports.\nFor example:\n1.) python manage.py runserver 127.0.0.1:8004\n2.) python manage.py runserver 127.0.0.1:8008\nand etc...","Q_Score":0,"Tags":"python,django","A_Id":63813632,"CreationDate":"2020-09-09T13:47:00.000","Title":"How can i create multiple django project on pycharm without one conflicting with other port","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Is it correct to use a uuid as a sales order transaction? for example, in an ecommerce website when someones orders any product or products is it ok to use the uuid as a unique identifier for the order transaction?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":224,"Q_Id":63820233,"Users Score":1,"Answer":"Yes. It is universally unique, so you can use it as a unique ID for a transaction, or whatever you want to be able to identify maybe cross systems and for storage etc.\nYou can consider alternatives also - sometimes perhaps also just a sequence number works, if they all come from one place and in order, and it's useful to know the order. With UUIDs you don't have it, unless store the sequence somewhere of course.","Q_Score":0,"Tags":"python,django,e-commerce","A_Id":63820461,"CreationDate":"2020-09-09T22:12:00.000","Title":"Django Is it correct to use uuid for a sales transaction","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Using beautifulsoup it's easy to fetch URLs that follow a certain numeric order. However how do I fetch URL links when it's organized otherwise such as https:\/\/mongolia.mid.ru\/en_US\/novosti where it has articles like\nhttps:\/\/mongolia.mid.ru\/en_US\/novosti\/-\/asset_publisher\/hfCjAfLBKGW0\/content\/24-avgusta-sostoalas-vstreca-crezvycajnogo-i-polnomocnogo-posla-rossijskoj-federacii-v-mongolii-i-k-azizova-s-ministrom-energetiki-mongolii-n-tavinbeh?inheritRedirect=false&redirect=https%3A%2F%2Fmongolia.mid.ru%3A443%2Fen_US%2Fnovosti%3Fp_p_id%3D101_INSTANCE_hfCjAfLBKGW0%26p_p_lifecycle%3D0%26p_p_state%3Dnormal%26p_p_mode%3Dview%26p_p_col_id%3Dcolumn-1%26p_p_col_count%3D1?\nWebsites such as these are weird because once you first open the link, you have \u00bb \u0411\u0443\u0441\u0430\u0434 \u043c\u044d\u0434\u044d\u044d  button to go to the next page of articles. But once you click there, now you have Previous or Next button which is so unorganized.\nHow do I fetch all the news articles from websites like these (https:\/\/mongolia.mid.ru\/en_US\/novosti or https:\/\/mongolia.mid.ru\/ru_RU\/)?","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":22,"Q_Id":63822647,"Users Score":1,"Answer":"It seems that the \u00bb \u0411\u0443\u0441\u0430\u0434 \u043c\u044d\u0434\u044d\u044d  button from https:\/\/mongolia.mid.ru\/ru_RU\/ just redirects to https:\/\/mongolia.mid.ru\/en_US\/novosti. So why not start from the latter?\nTo scrape all the news just go page through page using the link from the Next button.\nIf you want it to be more programatic, just check the differences in the query parameters and you'll see that _101_INSTANCE_hfCjAfLBKGW0_cur is set to the actual page's number (starting from 1).","Q_Score":0,"Tags":"python-3.x,beautifulsoup,scrapy","A_Id":63823640,"CreationDate":"2020-09-10T04:01:00.000","Title":"How to fetch website links when they're not numerically ordered","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I installed pip3 using sudo apt-get install python3-pip after that when I run the following command to install django sudo pip3 install django I get this error:\n\nTraceback (most recent call last):\nFile \"\/usr\/bin\/pip3\", line 9, in \nfrom pip import main\nFile \"\/usr\/lib\/python3\/dist-packages\/pip\/init.py\", line 14, in \nfrom pip.utils import get_installed_distributions, get_prog\nFile \"\/usr\/lib\/python3\/dist-packages\/pip\/utils\/init.py\", line 23, in \nfrom pip.locations import (\nFile \"\/usr\/lib\/python3\/dist-packages\/pip\/locations.py\", line 9, in \nfrom distutils import sysconfig\nImportError: cannot import name 'sysconfig' from 'distutils' (\/usr\/lib\/python3.8\/distutils\/init.py)\n\nHow do I fix this?","AnswerCount":2,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":25786,"Q_Id":63823964,"Users Score":70,"Answer":"I have tried recently manually installing python3.9 version in my Ubuntu from 3.6 version using apt install python3.9. Then pip3 was broken. The issue is because distutils were not build for the 3.9 version.\nSo in my case I ran apt install python3.9-distutils to resolve my issue.\nIn your case make sure to modify 3.x version in distutils command.","Q_Score":29,"Tags":"python,python-3.x,django,pip,python-3.8","A_Id":64771661,"CreationDate":"2020-09-10T06:31:00.000","Title":"ImportError: cannot import name 'sysconfig' from 'distutils' (\/usr\/lib\/python3.8\/distutils\/__init__.py)","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a Flask application that allows users to query a ~small database (2.4M rows) using SQL. It's similar to a HackerRank but more limited in scope. It's deployed on Heroku.\nI've noticed during testing that I can predictably hit an R14 error (memory quota exceeded) or R15 (memory quota greatly exceeded) by running large queries. The queries that typically cause this are outside what a normal user might do, such as SELECT * FROM some_huge_table. That said, I am concerned that these errors will become a regular occurrence for even small queries when 5, 10, 100 users are querying at the same time.\nI'm looking for some advice on how to manage memory quotas for this type of interactive site.  Here's what I've explored so far:\n\nChanging the # of gunicorn workers. This has had some effect but I still hit R14 and R15 errors consistently.\nForced limits on user queries, based on either text or the EXPLAIN output. This does work to reduce memory usage, but I'm afraid it won't scale to even a very modest # of users.\nMoving to a higher Heroku tier. The plan I use currently provides ~512MB RAM. The largest plan is around 14GB. Again, this would help but won't even moderately scale, to say nothing of the associated costs.\nReducing the size of the database significantly. I would like to avoid this if possible. Doing the napkin math on a table with 1.9M rows going to 10k or 50k, the application would have greatly reduced memory needs and will scale better, but will still have some moderate max usage limit.\n\nAs you can see, I'm a novice at best when it comes to memory management. I'm looking for some strategies\/ideas on how to solve this general problem, and if it's the case that I need to either drastically cut the data size or throw tons of $ at this, that's OK too.\nThanks","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":176,"Q_Id":63829513,"Users Score":1,"Answer":"Coming from my personal experience, I see two approaches:\n1. plan for it\nComing from your example, this means you try to calculate the maximum memory that the request would use, multiply it by the number of gunicorn workers, and use dynos big enough.\nWith a different example this could be valid, I don't think it is for you.\n2. reduce memory usage, solution 1\nThe fact that too much application memory is used makes me think that likely in your code you are loading the whole result-set into memory (probably even multiple times in multiple formats) before returning it to the client.\nIn the end, your application is only getting the data from the database and converting it to some output format (JSON\/CSV?).\nWhat you are probably searching for is streaming responses.\nYour Flask-view will work on a record-by-record base. It will read a single record, convert it to your output format, and return a single record.\nBoth your database client library and Flask will support this (on most databases it is called cursors \/ iterators).\n2. reduce memory usage, solution 2\nother services often go for simple pagination or limiting resultsets to manage server-side memory.\nsecurity sidenote\nit sounds like the users can actually define the SQL statement in their API requests. This is a security and application risk. Apart from doing INSERT, UPDATE, or DELETE statements, the user could create a SQL statement that will not only blow your application memory, but also break your database.","Q_Score":0,"Tags":"python,postgresql,heroku,memory,ram","A_Id":63841715,"CreationDate":"2020-09-10T12:17:00.000","Title":"Managing Heroku RAM for Unique Application","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have my Django application running with python manage.py runserver 0.0.0.0:8000\nIt is accessible within same network in every device with <your LAN ipv4 address>:8000\nHowever. I want to access this outside my network with <your public address>:8000\nWhat is the way to do this?\n\nDjango app is running on windows 10.\nI have already written ALLOWED HOSTS : [\"*\"]\n\nMaybe there's some issue with DNS or firewall.\n0.0.0.0 should let me access with  <your public address>:8000 but it is not giving access.\nPlease help..","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":452,"Q_Id":63834783,"Users Score":0,"Answer":"I have resolved my issue. Everything was good, i just allowed incoming connection on port 8000 in AWS ec2 console. Now it's working. Thank you.\n\nNow i can access it with <your public address>:8000","Q_Score":2,"Tags":"python,django,server,localhost,ip","A_Id":63893485,"CreationDate":"2020-09-10T17:25:00.000","Title":"How to access django server from different network?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have been using in one of my views request.data instead of serialzer to get json data and work on it, my question is this ok or lets say \"a good practice\" to use request.data or should i create serializer class for that view?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":73,"Q_Id":63846383,"Users Score":0,"Answer":"The reason to use a serializer in the first place is to transform native python data types to valid JSON and vice-versa. Consequently, the serializer adds a layer of validation to make sure that this transformation process runs correctly in accordance with your serializer definition.\nIf you decide to omit the serializer in the views, you would have to handle data validation there yourself and you end up implementing a feature which already exists in practice and has been \"battle-tested\" and worked on by multiple accomplished developers. There are cases where you don't strictly need a serializer in your views, for example when you simply display data from another source and only allow GET requests, but whenever you deal with data input I would consider it bad practice to not use serializers.","Q_Score":0,"Tags":"python,django,django-rest-framework,python-requests","A_Id":63846728,"CreationDate":"2020-09-11T11:41:00.000","Title":"using request.data instead of serializer class in Django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have been moving my flask apps from replit to my server, and things have been going smoothly, but I am moving my first app with SQL in it over to the server, and there keeps being errors when I open the database in the code. In the Apache error log, it says:\nsqlite3.OperationalError: unable to open database file\nThe app works well on replit, the database is in the same folder, but it doesn't work. Does anybody know why? I am using Ubuntu Server 20.04","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":185,"Q_Id":63849759,"Users Score":0,"Answer":"I have figured out why it's not working! The database was in the same dir as init.py, but wsgi calls it as a module in a different dir, so it wasn't calling the db. Adding an absolute path eg. \/var\/www\/theapp\/theapp\/database.db works.","Q_Score":0,"Tags":"python,sql,apache,flask,ubuntu-server","A_Id":63870957,"CreationDate":"2020-09-11T15:10:00.000","Title":"Flask not opening SQLite Database on apache2","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am new to both Python and Django. I am following a tutorial where the teacher is using Jinja in Visual Studio. I tried to download it from plug-ins in PyCharm, but there is nothing called Jinja.\nIs there any way I can use Jinja in PyCharm? Is there any alternative?","AnswerCount":2,"Available Count":1,"Score":0.0996679946,"is_accepted":false,"ViewCount":859,"Q_Id":63856121,"Users Score":1,"Answer":"Just to be clear, the free version of Pycharm does actually execute Flask apps with Jinja templates and such. It's just that it can't do Jinja syntax highlighting.\nLike, you'll see all your Jinja text as if it was plain HTML text when you're editing it, but then it will run it as Jinja anyways (I've used Jinja stuff such as block, extends, include, the default filter, loop.index... everything fine).","Q_Score":2,"Tags":"python,django,pycharm,jinja2","A_Id":69333091,"CreationDate":"2020-09-12T01:47:00.000","Title":"Jinja2 for PyCharm?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm testing an algorithm on a model of a robot on gazebo, for an experiment i need to perform some blind trials so i need to control a robot without seen it and after a timeout make it visible again via code in real time. i'm coding with python and ros.\nis it possible ?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":261,"Q_Id":63871815,"Users Score":1,"Answer":"I suppose that you mean you need your robot invisible to some vision-related algorithms running at the same time.\nThen I'm afraid once a model is \"spawned\" into the gazebo world, some feature like transparency can not be changed.\nSo in my opinion, when you need to change the visibility, maybe you can store the latest states of your robot, like position\\velocity etc, remove the invisible model, and then spawn a new visible model in the same states.\nJust a quick thought.","Q_Score":2,"Tags":"python,simulation,ros,gazebo-simu","A_Id":63878838,"CreationDate":"2020-09-13T14:17:00.000","Title":"Is it possible to make a model in gazebo invisible via ros\/python?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Okay, so pardon me if I don't make much sense. I face this 'ObjectId' object is not iterable whenever I run the collections.find() functions. Going through the answers here, I'm not sure where to start. I'm new to programming, please bear with me.\nEvery time I hit the route which is supposed to fetch me data from Mongodb, I getValueError: [TypeError(\"'ObjectId' object is not iterable\"), TypeError('vars() argument must have __dict__ attribute')].\nHelp","AnswerCount":4,"Available Count":2,"Score":1.0,"is_accepted":false,"ViewCount":8873,"Q_Id":63881516,"Users Score":6,"Answer":"I was having a similar problem to this myself. Not having seen your code I am guessing the traceback similarly traces the error to FastAPI\/Starlette not being able to process the \"_id\" field - what you will therefore need to do is change the \"_id\" field in the results from an ObjectId to a string type and rename the field to \"id\" (without the underscore) on return to avoid incurring issues with Pydantic.","Q_Score":10,"Tags":"python,mongodb,api,objectid","A_Id":65433351,"CreationDate":"2020-09-14T09:21:00.000","Title":"\"ObjectId' object is not iterable\" error, while fetching data from MongoDB Atlas","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"Okay, so pardon me if I don't make much sense. I face this 'ObjectId' object is not iterable whenever I run the collections.find() functions. Going through the answers here, I'm not sure where to start. I'm new to programming, please bear with me.\nEvery time I hit the route which is supposed to fetch me data from Mongodb, I getValueError: [TypeError(\"'ObjectId' object is not iterable\"), TypeError('vars() argument must have __dict__ attribute')].\nHelp","AnswerCount":4,"Available Count":2,"Score":0.049958375,"is_accepted":false,"ViewCount":8873,"Q_Id":63881516,"Users Score":1,"Answer":"use db.collection.find(ObjectId:\"12348901384918\")\nhere db.collection is database name and use double quotes for the string .","Q_Score":10,"Tags":"python,mongodb,api,objectid","A_Id":63881583,"CreationDate":"2020-09-14T09:21:00.000","Title":"\"ObjectId' object is not iterable\" error, while fetching data from MongoDB Atlas","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to create a controller with an SQLFORM.grid that shows only what the user submitted.\nI have two tables: one for teachers(users) and another for students. The teachers submit the student's info. How can I use the grid to show the students submitted per user?","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":103,"Q_Id":63882828,"Users Score":0,"Answer":"use smart grid i.e SQLFORM.smartgrid() instead of normal grid and for teacher table add data filed students as list:string so that you can add multiple student names who submitted to a teacher id.","Q_Score":1,"Tags":"python,web2py","A_Id":64620715,"CreationDate":"2020-09-14T10:51:00.000","Title":"Web2py SmartGrid display data per user","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I need to update in realtime one or more labels on my HTML webpage, im using some .css and .js for the animations on the webpage.\nActually im using flask for manage the calls.\nI need to update the values of the html page everytime that i receive a GET on my flask webserver.\nHow could I do?\nIm not so familiar with webapps, i need some help about technologies and techinques.\nThank you all","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":30,"Q_Id":63899213,"Users Score":0,"Answer":"One of the simplest ways to do so would be by using vue.js\nThere you can assign the content in your DOM (more exactly your vue-component) to a variable which you can update on every request.\nAlternatively you can use your standart js and update each label with the content on your label-update...","Q_Score":0,"Tags":"javascript,python,html,ajax,flask","A_Id":63899285,"CreationDate":"2020-09-15T09:44:00.000","Title":"Autoupdate labels on HTML page every Get request","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Website is fine when debug is true, but when set to false it gives me a server error 500 evertime on every page.\nWhen i go into heroku logs --tail\nit tells me there is a status 500 issue.\nI have set up my allowed host so that is not an issue.\nDoes anyone have any suggestions on what the root of the issue could be?\nWould appreciate any advice, thanks.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":89,"Q_Id":63907323,"Users Score":0,"Answer":"Try adding DEBUG_PROPAGATE_EXCEPTIONS = True in your setting.py. with this, you can see the errors in the log.\nSecondly, the major cause to this error is usually the static files serving via whitenoise.\nRun heroku run python manage.py collectstatic, but before that make sure your STATIC_ROOT is correct.","Q_Score":0,"Tags":"python,django,heroku,collectstatic","A_Id":63907434,"CreationDate":"2020-09-15T17:49:00.000","Title":"Server error 500 on Django when deployed on Heroku when debug is set to False","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to get the value from a text box on an html page.\nIncrease this value . Clear the existing value from the textbox and insert the incremented value.\nEg. The text box for add to cart. Has the value 2 for chocolates. I want to clear this value and enter the new value of 2+ 1 = 3\nI am using robot framework and python .\nI tried clear element keyword but this seems to be adding the 3 after the inserted value    ie.\n2 initial value\n3 updated value\nThe textbox reads 23 instead of 3\nYour help will be greatly  affected.  Thank you in advance.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":126,"Q_Id":63909495,"Users Score":0,"Answer":"The Input TextCommand should clear the Textfield from alone.\nClear Element Text is the only other Keyword I know to modify textfields.","Q_Score":0,"Tags":"python,robotframework","A_Id":63918686,"CreationDate":"2020-09-15T20:35:00.000","Title":"Robotframework- increment text box value","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a long item to write to a DynamoDB table.\nIf the size of the item exceeds the 400KB limit, I want to split the item into multiple chucks and store it as multiple items in the same table with different range keys. Range key here can be monotonically increasing number. How do I do this? Im using boto3","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":263,"Q_Id":63910646,"Users Score":1,"Answer":"There is no way to have boto library or the DynamoDB API automatically \u2018split\u2019 your items.\nYou will have to split up the data yourself and essentially put multiple items that logically make up your original item.\nDepending on the actual structure of your item you will have to decide on a split schema that makes sense for your use case.\nIf your system can tolerate eventual consistency, you can use the PutItem api to write each of the splits. Otherwise, you can use the new transactions API to put all splits in a transaction with the caveat that it costs more and that each transaction is limited to 25 requests and up to 4 MB of data.","Q_Score":0,"Tags":"python,json,amazon-dynamodb,boto3","A_Id":63925941,"CreationDate":"2020-09-15T22:26:00.000","Title":"Split a DynamoDB item that exceeds the size limit","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am new to DITA. I would like to create the DITA xml for my PDF publishing\nWHAT I WANT TO DO IS :\nfirst i want to have the template based table which can be used in number of DITA xmls\nand in hat table template I can populate the data according to my need.\nIn this way I can use same table schema multiple times and populate different data into that table present in different DITA xmls.\ncan it be possible through python?\nIs it possible to do so?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":70,"Q_Id":63919310,"Users Score":0,"Answer":"It sounds like you could use the DITA conref capability. For the template table, you can have that in a DITA XML file that you store separately. Then in each DITA file that you want to use that table in, you use a conref to pull in your template table.\nYou could use Python for this, but it would be simpler to just use the free DITA Open Toolkit, which supports the conref feature by default.","Q_Score":0,"Tags":"python,dita","A_Id":63932761,"CreationDate":"2020-09-16T11:41:00.000","Title":"how to create a template based table and use it in multiple DITA xml and populate the data through it","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"We're using the DocuSign SDK (version 3.3.0) and utilizing webhooks to receive the various envelope and recipient events.\nSimilar to DocuSign, we have given a option to delete an envelope in our application. Since there is no webhook notification once a envelope is moved to deleted bin. And also there is a field called deleted_date_time in get_envelope method (which provides the envelope details) and there is no status change, which are not updated once the envelope is being removed from the deleted bin.\nCan anyone please help me in how to make sure the envelope has been removed from the deleted bin?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":197,"Q_Id":63931911,"Users Score":1,"Answer":"There's no means to permanently delete and envelope or remove it from the recycle bin folder. You cannot do that from the DocuSign Web App either as far as I can tell.\nVoiding an envelope is and deleting it is as good as it gets. There's no need to worry about it anymore.","Q_Score":0,"Tags":"python-3.x,docusignapi,webhooks","A_Id":63946598,"CreationDate":"2020-09-17T05:43:00.000","Title":"DocuSign - Delete Envelope","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I created five functions in AWS which are being triggered by an ALB.\nThe lambdas are written in Python and I need to create a single swagger doc for them.\nI considered using flask_swagger_ui but the only way I found to make it work is to use a single lambda (instead of five) and let flask do the routing inside that lambda (A solution which is not good for me)\nAny ideas on how this can be achieved?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":93,"Q_Id":63932522,"Users Score":0,"Answer":"You can create an additional Lambda, which is just for documentation purpose.\nThe functions in that Lambda are just annotated placeholders, and the ALB listener routes only the documentation path requests to this lambda, and the other requests to the \"real\" Lambdas.","Q_Score":0,"Tags":"python,flask,aws-lambda,swagger,swagger-ui","A_Id":64739755,"CreationDate":"2020-09-17T06:36:00.000","Title":"Creating a single swagger doc for for multiple python lambdas that are being triggered by ALB","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to integrate external data into a Django app. Let's say, for example, I want to work with GitHub issues as if they were formulated as normal models within Django. So underneath these objects, I use the GitHub API to retrieve and store data.\nIn particular, I also want to be able to reference the GitHub issues from models but not the other way around. I.e., I don't intend to modify or extend the external data directly.\nThe views would use this abstraction to fetch data, but also to follow the references from \"normal objects\" to properties of the external data. Simple joins would also be nice to have, but clearly there would be limitations.\nAre there any examples of how to achieve this in an idiomatic way?\nIdeally, this would be would also be split in a general part that describes the API in general, and a descriptive part of the classes similar to how normal ORM classes are described.","AnswerCount":3,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":214,"Q_Id":63955581,"Users Score":0,"Answer":"I would suggest to just use normal OOP principles, Polymorphism, Association etc. to get a similar feel to real models.\nBut I'm not sure I would try to simulate behavior as close as I could, because the ORM is specifically designed for database interaction. I would just write my custom methods.","Q_Score":8,"Tags":"python,django","A_Id":63956356,"CreationDate":"2020-09-18T12:13:00.000","Title":"Building object models around external data","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Pre-requisites\n\nOS - Centos 7\nPython 3.6.4\nDjango 3.0 (or 3.1.1)\nDjango Rest framework 3.11.1\ndjango-rest-framework-datatables 0.5.0\nApache 2.4\nORACLE 19.1\n\nI have a simple Rest API - which fetches all data from a table in Oracle database. This Django Framework is hosted on Apache webserver. This data is fed into a datatable using the django-rest-framework-datatables.\n\nWhen I fetch data from the API using djangorest framework it works well.\nWhen I fetch data using the template with ?format=datatables as the query parameter the URL is changed and it becomes a very long URL since my table consists of 50-60 columns.\nThus throws a 414 error.\n\nDid anybody else face this error ?\nIt works well with the django's inherent webserver but when used using Django fails.","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":131,"Q_Id":64002781,"Users Score":0,"Answer":"Yes, I faced such issue and reconfigured the code to shorten the URI.","Q_Score":0,"Tags":"python,django,apache,django-rest-framework,datatables","A_Id":64185430,"CreationDate":"2020-09-22T03:41:00.000","Title":"django-rest-framework-datatables with Apache shows 414 URI too long error","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"while building a debug toolbar in Django I am getting an error in file toolbar.js ie.\ns.map: HTTP error: status code 404, net:: ERR_UNKNOWN_URL_SCHEME\ntoolbar.js:1 Failed to load module script: The server responded with a non-JavaScript MIME type of \"text\/plain\". Strict MIME type checking is enforced for module scripts per HTML spec.\ncan anyone tell me the possible fix for that?","AnswerCount":4,"Available Count":2,"Score":0.1488850336,"is_accepted":false,"ViewCount":4225,"Q_Id":64013643,"Users Score":3,"Answer":"I have faced the problem and it was fixed after edit the Windows registry. I just Set HKEY_CLASSES_ROOT.js\\Content Type from text\/plain to text\/javascript.\nNow the problem is solved!","Q_Score":11,"Tags":"javascript,python,django","A_Id":67098927,"CreationDate":"2020-09-22T16:10:00.000","Title":"Failed to load module script: The server responded with a non-JavaScript MIME type of \"text\/plain\". Strict MIME type checking i","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"while building a debug toolbar in Django I am getting an error in file toolbar.js ie.\ns.map: HTTP error: status code 404, net:: ERR_UNKNOWN_URL_SCHEME\ntoolbar.js:1 Failed to load module script: The server responded with a non-JavaScript MIME type of \"text\/plain\". Strict MIME type checking is enforced for module scripts per HTML spec.\ncan anyone tell me the possible fix for that?","AnswerCount":4,"Available Count":2,"Score":0.049958375,"is_accepted":false,"ViewCount":4225,"Q_Id":64013643,"Users Score":1,"Answer":"I faced the same error. It was resolved once I updated the  HKEY_CLASSES_ROOT.js\\Content Type from text\/plain to text\/javascript in my Windows using RegistryEditor.\nAfter that I had to refresh my browser cache to be able to see the toolbar","Q_Score":11,"Tags":"javascript,python,django","A_Id":68785224,"CreationDate":"2020-09-22T16:10:00.000","Title":"Failed to load module script: The server responded with a non-JavaScript MIME type of \"text\/plain\". Strict MIME type checking i","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am experiencing a very strange error when analyzing a Python project in jenkins with sonarscanner.\nIn fact, after a commit where a lot of code lines has been removed, I ran a coverage scan (with python module) and when i tried to pass the report to the sonar-scanner binary plugin on to Jenkins, a java exception appeared, told me that \u00ab\u00a0line XXX is out of range in file YYY\u00a0\u00bb. Where XXX is part of my deleted line, and YYY is one of my source file.\nIs anybody experienced the same behaviour ?\nI already tried to remove .sonar cache in jenkins home and .sonarwork in my jenkins pipeline, but no effect...\nThank you in advance for your help !\nCheers !","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":385,"Q_Id":64014889,"Users Score":0,"Answer":"The issue is with the coverage xml format and latest sonar cli version to analysis the XML for metrics notification. We had two choice:\n1- Add a blankspace. (at the bottom of the coverage.xml file). This worked for an old pytest tests.\n2- In another project, I updated the following packages: pytest, pytest-cov, and coverage, this to the latest version. (Worked like a charm).\nOne catch here: when updating to the latest pytest version you might find methods that no longer exist for conftest.py. Eg: get_marker which can be substituted by the new get_closest_marker. Or reserved words like \"request\". For the latest case you can rename the method named request.","Q_Score":0,"Tags":"python,jenkins,sonarqube,jenkins-pipeline,sonarqube-scan","A_Id":68505074,"CreationDate":"2020-09-22T17:31:00.000","Title":"Sonarqube + Jenkins : python coverage report => Line out of range after deleting lines in sources","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I tried deploying my Django website using heroku and used a library called Django-Heroku. When setting my settings.py for deployment, it returns Server Error (500) when setting\nDEBUG = False, importing import django_heroku  and writing django_heroku.settings(locals()) at the last line of my settings.py file. How can I check the settings set by django_heroku that disables my django website for production?\nNote: it does not show any error when setting DEBUG=True and the django app works fine.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":77,"Q_Id":64026191,"Users Score":0,"Answer":"i had this problem too, and it will return you that error for specific template, if you try another template you should see that works, so btw, you need check your template for that specific url, maybe you forget some html element to close your tags! check it, fix it and push it again, it will work!","Q_Score":0,"Tags":"python,django,heroku","A_Id":64027953,"CreationDate":"2020-09-23T10:43:00.000","Title":"Django app does not work when DEBUG=False and using django_heroku","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am creating a database in flask-sqlalchemy. I'd like one of the rows to have an automatically generated integer in increments of one, which I can change dynamically externally. I would like this to not be a primary_key, as the integer will be changed regularly. This number will be used for a queue system. Are there any practical methods I can use for this issue?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":30,"Q_Id":64028910,"Users Score":0,"Answer":"U can use a global variable to store and update the integer value (or) u can also store the integer in a text file and read and update the integer value from the text file.","Q_Score":0,"Tags":"python,python-3.x,flask,sqlalchemy,flask-sqlalchemy","A_Id":64030560,"CreationDate":"2020-09-23T13:19:00.000","Title":"Generating an automatically incrementing integer in flask-sqlalchemy which is not a primary_key","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Im making a webserver from scratch in python by simply supplying HTML content through a tcp socket. I want to be able to run gwt projects, is this possible by just echoing the contents of the generated index.html to a browser?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":42,"Q_Id":64030792,"Users Score":3,"Answer":"If it is a client-side GWT application, then yes, you could serve it with a basic HTTP webserver that receives HTTP GET requests from a browser and serves files like HTML, JavaScript, images, etc.\nIf the GWT application includes server-side servlets then it wouldn't work when the client sent requests to the server part of the application.","Q_Score":0,"Tags":"python,gwt","A_Id":64056309,"CreationDate":"2020-09-23T15:00:00.000","Title":"Can i run a gwt project without using a webserver","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to run many spiders with my scrapy. Does that make the crawling process slower or is there any limit for spiders to run? Is running many unlimited spiders makes the process slow ?\nIs there anyone who is experienced with Scrapy?","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":62,"Q_Id":64039937,"Users Score":1,"Answer":"You can run multiple spiders concurrently and no, it will not make the process slower.","Q_Score":0,"Tags":"python,django,scrapy","A_Id":64040064,"CreationDate":"2020-09-24T05:13:00.000","Title":"Is there any limits for running multiple spiders with scrapy?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am using drf-yasg to generate open API, what I want is once I have added the token for authentication it should be persistent and should not expire when user refreshes the page. Currently if user refreshes the page the token gets lost and user again needs to enter the token again and again after any single change.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":438,"Q_Id":64040385,"Users Score":2,"Answer":"When using drf-yasg, you can configure settings in SWAGGER_SETTINGS in your settings.py.\nadd 'PERSIST_AUTH': True into SWAGGER_SETTINGS would work.","Q_Score":1,"Tags":"python-3.x,django,django-rest-framework,swagger,swagger-ui","A_Id":70461306,"CreationDate":"2020-09-24T06:03:00.000","Title":"drf-yasg - How to customize persistent auth token?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Here is my code:\ndriver.find_element_by_xpath(\"\/\/*[text()='Supreme\u00ae\/Vanson Leathers\u00ae Worn Leather Jacket']\", \"\/\/*[text()='Dark Purple']\") .click()\nBasically, I'm trying to use two two pieces of text to click on one object. However, I'm getting the error below:\nTypeError: find_element_by_xpath() takes 2 positional arguments but 3 were given\nHere's the HTML content of the website for reference:\n<a class=\"name-link\" href=\"\/shop\/jackets\/hfxyzecg4\/e6ap8ojhd\">Supreme\u00ae\/Vanson Leathers\u00ae Worn Leather Jacket<\/a>\n<a class=\"name-link\" href=\"\/shop\/jackets\/hfxyzecg4\/e6ap8ojhd\">Dark Purple<\/a>\nAny way to get around this?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":40,"Q_Id":64073959,"Users Score":0,"Answer":"Each <a> anchor tag in HTML refers to a link. You can click on any one anchor tag at any point of time.\nIn Selenium any find_element method like find_element_by_id or find_element_by_xpath will allow to accept only one argument i.e., that elements value.\nUse the appropriate link you want click according to your flow and use that xpath in the find_element_by_xpath","Q_Score":0,"Tags":"python,selenium,xpath","A_Id":64076781,"CreationDate":"2020-09-26T04:38:00.000","Title":"I'm trying to get Selenium to click on one object using XPath on two different pieces of text, but there's an error","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"ok, I'm really confused...\nThere seems to be a fair few posts on this, but are all outdated as I have tried about 15 different python bots and code sections and cant get them to work.\nIt seems that the API's have changed in the past year and thus every developer who had a working bot is now left unable to.\nI'm confused at to why, as there are services like Later .com and others that allow people to post to their instagram account. So there has to be a programmable way to do this.\nI had a look at the API docs for their API but I can only seen to find 2 and none of them allow posting to your profile:\n\nInstagram Graph API\n\n\nThe API can be used to get their media, manage and reply to comments on their media, identify media where they have been @mentioned by other Instagram users, find hashtagged media, and get basic metadata and metrics about other Instagram Businesses and Creators.\n\nThis only says get their media, not publish.\n\nInstagram Basic Display API\n\n\nThe API can be used to access any type of Instagram account but only provides read-access to basic data. If you are building an app that will allow Instagram Businesses or Creators to publish media, moderate comments, identify @mentioned and hashtagged media, or get data about other Instagram users, use the Instagram Graph API instead.\n\nThis one says should I want to publish media then I should go to the Instagram Graph API, again which doesnt say I can publish.\nLet's say for the sake of this convo that the one I should use is the Instagram Graph API. The requirements for this are:\n\nBefore you can switch your app to Live Mode you must complete the App Review process. You can begin the process in the App Review > Permissions and Features tab within the App Dashboard. All Instagram Graph API permissions except for pages_show_list require App Review approval.\n\n\nOnce you complete App Review you will be asked to complete Business Verification. You must complete verification before your app will be able to use Advanced Access Levels.\n\nAll I want to do is automate the posting of my personal instagram account so I can bulk edit photos and do all that in one day without having to create a full working live app that people can use or a business.\nPlease, for the love of all that is automation, please point me in the right direction to do this..","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":439,"Q_Id":64084202,"Users Score":0,"Answer":"With the new Facebook Graph API, you can make an Instagram post. But this API, hence the post functionality, works only with the Instagram Businesses and Creators users.\nIn your case, just switch to the Creators account.","Q_Score":2,"Tags":"python,automation,instagram,instagram-api","A_Id":65346143,"CreationDate":"2020-09-27T02:25:00.000","Title":"How to programatically post to instagram","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"ok, I'm really confused...\nThere seems to be a fair few posts on this, but are all outdated as I have tried about 15 different python bots and code sections and cant get them to work.\nIt seems that the API's have changed in the past year and thus every developer who had a working bot is now left unable to.\nI'm confused at to why, as there are services like Later .com and others that allow people to post to their instagram account. So there has to be a programmable way to do this.\nI had a look at the API docs for their API but I can only seen to find 2 and none of them allow posting to your profile:\n\nInstagram Graph API\n\n\nThe API can be used to get their media, manage and reply to comments on their media, identify media where they have been @mentioned by other Instagram users, find hashtagged media, and get basic metadata and metrics about other Instagram Businesses and Creators.\n\nThis only says get their media, not publish.\n\nInstagram Basic Display API\n\n\nThe API can be used to access any type of Instagram account but only provides read-access to basic data. If you are building an app that will allow Instagram Businesses or Creators to publish media, moderate comments, identify @mentioned and hashtagged media, or get data about other Instagram users, use the Instagram Graph API instead.\n\nThis one says should I want to publish media then I should go to the Instagram Graph API, again which doesnt say I can publish.\nLet's say for the sake of this convo that the one I should use is the Instagram Graph API. The requirements for this are:\n\nBefore you can switch your app to Live Mode you must complete the App Review process. You can begin the process in the App Review > Permissions and Features tab within the App Dashboard. All Instagram Graph API permissions except for pages_show_list require App Review approval.\n\n\nOnce you complete App Review you will be asked to complete Business Verification. You must complete verification before your app will be able to use Advanced Access Levels.\n\nAll I want to do is automate the posting of my personal instagram account so I can bulk edit photos and do all that in one day without having to create a full working live app that people can use or a business.\nPlease, for the love of all that is automation, please point me in the right direction to do this..","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":439,"Q_Id":64084202,"Users Score":0,"Answer":"The instagram API does not support uploading images.\nI too was frustrated with how much effort one has to invest to discover this.  After all, posting an image seems like a fundamental use case for an API.  I wish there was a FAQ page, or bold disclaimer that makes it clear.\nThere are projects on github that support posting to Instagram in unsupported ways (e.g. using a \"private\" api, or simulating the Instagram app).  I haven't personally used any of these solutions, but wanted to mention they exist.","Q_Score":2,"Tags":"python,automation,instagram,instagram-api","A_Id":64091366,"CreationDate":"2020-09-27T02:25:00.000","Title":"How to programatically post to instagram","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"This is a simple data visualization task that I am trying to accomplish: seeing data in real time using my web browser.\nMy idea is to take an HTML template and change only a few key values inside of it once a second using Python. I need it to be HTML and not something else like pygtk because CSS formatting is very practical for my application.\nIs that possible? What would be the easiest way?","AnswerCount":3,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":142,"Q_Id":64085042,"Users Score":0,"Answer":"the Flask module should solve your problems","Q_Score":0,"Tags":"python,html,user-interface","A_Id":64085070,"CreationDate":"2020-09-27T05:12:00.000","Title":"How to create an HTML page that refreshes in real time using Python?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to upload a video using the youtube data api but for some reason am getting the error down below, the keywords I'm using are:\n\n['ski mask the slump god x blueface type beat', 'ski mask the slump\ngod x tyga type beat', 'ski mask the slump god x jasiah type beat',\n'ski mask the slump god x bbno type beat', 'ski mask the slump god x\njid type beat', 'ski mask the slump god x type beat', 'ski mask the\nslump god x splurge type beat', 'ski mask the slump god x zotiyac type\nbeat', 'ski mask the slump god x smokepurpp type beat', 'ski mask the\nslump god x comethazine type beat', 'ski mask the slump god x gunna\ntype beat', 'free type beat 2020', 'free dreamy beat']\n\nThe error is:\n\nb'{\\n  \"error\": {\\n    \"code\": 400,\\n    \"message\": \"The request\nmetadata specifies invalid video keywords.\",\\n    \"errors\": [\\n\n{\\n        \"message\": \"The request metadata specifies invalid video\nkeywords.\",\\n        \"domain\": \"youtube.video\",\\n        \"reason\":\n\"invalidTags\",\\n        \"location\": \"body.snippet.tags\",\\n\n\"locationType\": \"other\"\\n      }\\n    ]\\n  }\\n}\\n'\n\nUnless I am bling my keywords do not appear to contain any special characters, any double whitespaces, neither are they over 500 characters long. I have not found any documentation on what are classified as invalid keywords either, so I am kinda stumped here as to what is causing the problem.","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":166,"Q_Id":64087393,"Users Score":0,"Answer":"Having more than three words in a \"keyword\" also appears to throw this error.","Q_Score":3,"Tags":"python,youtube,youtube-data-api","A_Id":72167379,"CreationDate":"2020-09-27T10:26:00.000","Title":"What does the youtube data api classify as invalid keywords?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to upload a video using the youtube data api but for some reason am getting the error down below, the keywords I'm using are:\n\n['ski mask the slump god x blueface type beat', 'ski mask the slump\ngod x tyga type beat', 'ski mask the slump god x jasiah type beat',\n'ski mask the slump god x bbno type beat', 'ski mask the slump god x\njid type beat', 'ski mask the slump god x type beat', 'ski mask the\nslump god x splurge type beat', 'ski mask the slump god x zotiyac type\nbeat', 'ski mask the slump god x smokepurpp type beat', 'ski mask the\nslump god x comethazine type beat', 'ski mask the slump god x gunna\ntype beat', 'free type beat 2020', 'free dreamy beat']\n\nThe error is:\n\nb'{\\n  \"error\": {\\n    \"code\": 400,\\n    \"message\": \"The request\nmetadata specifies invalid video keywords.\",\\n    \"errors\": [\\n\n{\\n        \"message\": \"The request metadata specifies invalid video\nkeywords.\",\\n        \"domain\": \"youtube.video\",\\n        \"reason\":\n\"invalidTags\",\\n        \"location\": \"body.snippet.tags\",\\n\n\"locationType\": \"other\"\\n      }\\n    ]\\n  }\\n}\\n'\n\nUnless I am bling my keywords do not appear to contain any special characters, any double whitespaces, neither are they over 500 characters long. I have not found any documentation on what are classified as invalid keywords either, so I am kinda stumped here as to what is causing the problem.","AnswerCount":2,"Available Count":2,"Score":0.0996679946,"is_accepted":false,"ViewCount":166,"Q_Id":64087393,"Users Score":1,"Answer":"I believe YouTube requires the total keywords characters length to be less than 400 (approx). Seems like you have 484 characters in total here, try to reduce the number of keywords you specify","Q_Score":3,"Tags":"python,youtube,youtube-data-api","A_Id":64088513,"CreationDate":"2020-09-27T10:26:00.000","Title":"What does the youtube data api classify as invalid keywords?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm trying to create a guitar amp simulator.\nI want to be able to read audio as input, and simultaneously play it, like a real guitar amp.\nCouldn't find a lead on how to do this.\nWhat python library is able to do that?\nThanks","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":46,"Q_Id":64093119,"Users Score":0,"Answer":"Have you tried the Mido or a similar MIDI library?","Q_Score":0,"Tags":"python,audio,audio-streaming","A_Id":64093165,"CreationDate":"2020-09-27T20:39:00.000","Title":"Python - Reading audio input and playing it simultaneously in real time","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I build this chat website, and I'd like to test this functionnality:\n\nif you send a message and the user is online, send message via websocket: Tested\nif you send a message and the user is offline, send a push notification (it's a REST call).\n\nObviously, in my test, I don't want to do the REST call. I'd like to mock the function \"push_notif\".\nBut, when I use unittest.patch, the function is not mocked in the consumer (probably because of some async stuff). How can I mock this \"push_notif\" function","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":100,"Q_Id":64107071,"Users Score":0,"Answer":"Out of solution, I made a decorator for my function \"push_notif\". If in test, it writes in a file \"func.__name__,args,kwargs\", then I read this file in my test to see if the right call was passed.\nUgly, but getting things done","Q_Score":0,"Tags":"django-channels,python-mock,django-unittest","A_Id":64110376,"CreationDate":"2020-09-28T17:43:00.000","Title":"Django-channels, how to use mocks","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I\u2019m trying to deploy my dash app on EBS. I currently reference a local directory (on my machine) as \u2018C:\\users\\me\\projects\\superstar\\assets\\database.db\u2019\nMy dash app.py is in the superstar folder. I\u2019ve tried changing this to \u2018\/assets\/database.db\u2019, but the code is unable to find the file.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":69,"Q_Id":64108819,"Users Score":0,"Answer":"My problem was that the app.py file was not in the root directory.  Once I moved it there, accessing '\/assets\/database.db' worked fine.","Q_Score":0,"Tags":"python,plotly-dash,amazon-ebs","A_Id":64252301,"CreationDate":"2020-09-28T19:57:00.000","Title":"How do I reference a local file when moving to a remote server?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"We are using a combination of django, rabbitmq, celery and ffmpeg to read camera streams and break them into images to be stored into filesystem. This setup works 24x7. Now, for each camera stream we are creating a separate task and each will theoretically run for indefinite period.\nIf a stream goes down, we wait for n number of frames, create an exception and in the exception handler, after creating a delay of 1 min using time.sleep we rerun the ffmpeg process.\nMy questions are,\nIs this a right approach?\nShould we use celery for reading streams?\nIs celery the right tool to use for this task?\nCan we create delay in celery task using time.sleep ? Will it affect the other tasks?","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":888,"Q_Id":64123114,"Users Score":1,"Answer":"We have relatively big Celery cluster and many of our tasks run for hours, some even run over 24 hours, so I would say yes, Celery is a good choice for long-running tasks. I know very little about audio\/video processing, so I do not think there should be any problems doing it inside a Celery task. The only thing I would perhaps change in the original idea is the following: I would not sleep (yes, you can call sleep in Celery task) and continue processing, but run a new task instead. Other tasks should not be affected at all.","Q_Score":1,"Tags":"python-3.x,ffmpeg,rabbitmq,celery,django-celery","A_Id":64137486,"CreationDate":"2020-09-29T15:46:00.000","Title":"Is celery a good choice for long running tasks?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I'm working on a Django project where I have to take a Product name from the search bar & pass the name through a python script where the script will scrape some data from a website & store it in a list. Then it will go to the result.html page & show the data. How should I take the product name from the search box & where should I place the python script? How can I loop over the list data & show it in the result.html ?","AnswerCount":2,"Available Count":1,"Score":-0.1973753202,"is_accepted":false,"ViewCount":113,"Q_Id":64126222,"Users Score":-2,"Answer":"You can use ajax to communicate between the back and front ends ...","Q_Score":0,"Tags":"python,django,web-deployment","A_Id":64126249,"CreationDate":"2020-09-29T19:18:00.000","Title":"How to take a string as input in django?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"How to trigger the lambda function only for INSERT event in dynamodb stream?\nTo reduce the cost of the lambda function, is it possible to trigger the lambda function based on the type of operation\n\nINSERT - insert_lambda_function\nMODIFY - update_lambda_function\nREMOVE - delete_lambda_function","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":427,"Q_Id":64160055,"Users Score":2,"Answer":"No, this is not currently possible.","Q_Score":2,"Tags":"python,amazon-web-services,aws-lambda,amazon-dynamodb-streams","A_Id":64160180,"CreationDate":"2020-10-01T17:00:00.000","Title":"How to trigger the lambda function only for INSERT event in dynamodb stream?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have my app.py function that's using pip libraries like SQLAlchemy, etc... I am deploying this to AWS Lambda, so I am packaging app.py and all other dependencies into a zip.\n\nIs there a better way to deal this? (What if pip libraries go out of date)\nI have a custom code that I want to use in many programs. How do I create my own module and package it along with pip libraries?","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":1978,"Q_Id":64161352,"Users Score":0,"Answer":"Regarding 1 - AWS SAM will work out your requirements.txt and bundle what's needed with your code. This works fine for small projects, but for larger ones I'd suggest going the same way as for library code - put all your deps in separate layer. It may be installed with pip install -U --target dirname and then packaged into a layer.","Q_Score":3,"Tags":"python,aws-lambda,pip,python-module","A_Id":64163213,"CreationDate":"2020-10-01T18:36:00.000","Title":"How to work with Python custom packages in AWS Lambda","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I would like for the Jinja2 package's syntax support to be provided automatically to files with the .html extension, given that the appropriate delimiters ({% .. %}, {{ .. }}) are detected.\nI understand this would work for files with the .j2 extension. I am asking if it could be applied to plain HTML files that include Jinja2 syntax, without having to add the entire .html file type (which would then apply it to any HTML file)?\nFor now, I have been selecting the HTML (Jinja2) option from the syntax definition dropdown menu for each file, obviously not an ideal solution.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":218,"Q_Id":64188410,"Users Score":2,"Answer":"The easiest way to do this is to open a .html file, then select View \u2192 Syntax \u2192 Open all with current extension as\u2026 \u2192 HTML (Jinja2). This should do the trick. If not, there's a different way that involves writing a plugin, but this should be sufficient.\nThis still works based on the file's extension. However, highlighting of non-template content should be exactly the same as if you were using the regular HTML syntax.","Q_Score":1,"Tags":"python,jinja2,sublimetext3","A_Id":64188685,"CreationDate":"2020-10-03T19:53:00.000","Title":"In Sublime Text, is there a way to get the Jinja2 package to automatically provide syntax support for files with the .html extension?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am attempting to perform a sam deployment and upon running the command:\nsam build --template template.yaml --build-dir .\/build --use-container\nI see that the image \"amazon\/aws-sam-cli-build-image-python3.6\" is successfully pulled but then I obtain the following error:\nBuild Failed Error: PythonPipBuilder:ResolveDependencies - pip executable not found in your python environment at \/var\/lang\/bin\/python3.6\nI really have no clue why this is happening since I would expect that once the python image was pulled, pip and its dependencies would be installed.\nAppreciate any help, thanks in advance!","AnswerCount":3,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":2785,"Q_Id":64189929,"Users Score":0,"Answer":"I encountered this issue after installing the sam-cli with pipx (I also use pyenv). My global python version from pyenv was 3.6 and the sam-cli was somehow finding python at \/usr\/bin\/python3.8 instead of the pyenv shim. After setting the local python version to 3.8.6 with pyenv's .python-version file in the root of the project, the error message went away.","Q_Score":1,"Tags":"python,amazon-web-services,docker,aws-lambda","A_Id":65267643,"CreationDate":"2020-10-03T23:37:00.000","Title":"aws sam deployment failed due to pip executable not found - python","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I recently started learning Django and when I am writing templates, I have to switch between HTML and Django HTML extensions to use the tab for autocompletion.\nWith the HTML extension, I can autocomplete the tags using the tab but when Django HTML is in use, it does not work anymore and have to write all the tags manually. Switching between the two is also frustrating, and sticking with the HTML extension means writing the Django syntax (eg. loops, if, and so on) manually also.\nIs there any extension that provides this? Or is there any way to use both at the same time? If not, even a quick shortcut for switching between the two would help.\nThanks.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":57,"Q_Id":64208292,"Users Score":0,"Answer":"you can install the django template extension. that will enable the autocomplete functionalities for the django template language.","Q_Score":1,"Tags":"python,django,visual-studio-code","A_Id":64208369,"CreationDate":"2020-10-05T12:04:00.000","Title":"Can I use Django and HTML extensions at the same time in VSCcode?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a like function in views.py and whenever the function executes I want my user to be returned to the same page he\/she was before the funcion executed.\nWhat should I write in return of my function?","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":35,"Q_Id":64212612,"Users Score":0,"Answer":"You could simply return using the same HTML template to the user","Q_Score":0,"Tags":"python,django","A_Id":64213237,"CreationDate":"2020-10-05T16:28:00.000","Title":"How can i redirect to the same page when a function executed Django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to develop a React Client that consumes the Frappe REST API but on each request I am getting a CORS error. according to the community forum, I have to edit the Nginx conf to allow CORS requests but I am facing this error on my machine (localhost) and the dev server is not Nginx so how can I allow CORS requests on localhost?","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":591,"Q_Id":64229353,"Users Score":0,"Answer":"I don't think you need to configure CORS, especially during local development.\nLet's say your React client is running the port 8080 and Frappe server is on 8000. You can proxy all your requests from localhost:8080 to localhost:8000.\nIn production, you can generate the static assets and put them in the www folder of the Frappe app.","Q_Score":0,"Tags":"python-3.x,erpnext,frappe","A_Id":64578766,"CreationDate":"2020-10-06T15:47:00.000","Title":"Frappe Framework ERPNEXT: How to enable CORS on localhost","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to develop a React Client that consumes the Frappe REST API but on each request I am getting a CORS error. according to the community forum, I have to edit the Nginx conf to allow CORS requests but I am facing this error on my machine (localhost) and the dev server is not Nginx so how can I allow CORS requests on localhost?","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":591,"Q_Id":64229353,"Users Score":0,"Answer":"Add \"allow_cors\": \"*\" to common_site_config.json and restart bench","Q_Score":0,"Tags":"python-3.x,erpnext,frappe","A_Id":69908944,"CreationDate":"2020-10-06T15:47:00.000","Title":"Frappe Framework ERPNEXT: How to enable CORS on localhost","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to sort my query set by a \"ranking value\" which I have as a decimal field in my django model, however it seems the \"order_by\" function doesn't seem to work? my query set is always the same, with no ordering.\nI have tried the google but come up short, am I missing something here?","AnswerCount":2,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":275,"Q_Id":64233816,"Users Score":-1,"Answer":"I need to see your code, but without looking i can ask you to use the \"round(x)\" function (where x is a float) on all your values, it will not change the ranking (mathematically sure about this), and order_by will work\nWould love to see your code indeed !\nTip : Use a for loop to round all the numbers or make a function","Q_Score":2,"Tags":"python,django,web,web-applications","A_Id":64233939,"CreationDate":"2020-10-06T21:08:00.000","Title":"How to order a filtered django query set by a decimal field","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I made changes to my program and now, when I press to deploy, the app gets stuck. It says build is in progress although after 20 min not a single line has been written in the log. I tried deleting my app and creating a new one, with the same repository from github, and it still gets stuck. Anyone can help pls?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":38,"Q_Id":64252824,"Users Score":0,"Answer":"Ok so basically, I let the build run for a bit more before deleting the app, and it got a timeout error. Then I deployed it again and it worked.","Q_Score":0,"Tags":"python,heroku","A_Id":64253156,"CreationDate":"2020-10-07T21:51:00.000","Title":"Build from github on Heroku is stuck, no lines are being written","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Using DynamoDB.\nAn online store where you see a snapshot of the data for 20 items on the first screen, including price, picture, product name.\nWhen you click on the product it reveals more data, such as description, any deals, more images, etc.\nWould you make another call to the database for the second view or just get all the data on the first call?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":18,"Q_Id":64262361,"Users Score":1,"Answer":"When considering \"best practices\", I wouldn't consider one approach a clear winner over another.  Which approach works best for you will depend on the specifics of your application.  For example, are you in a high latency\/low bandwidth environment?  Are you on a mobile device? How often is this query run?  Etc.\nI would recommend starting by pulling back all the data you need in a single request because it's simpler.  If you run into performance issues along the way, you can circle back and try fetching additional data on an as-needed basis.\nIf there is a \"best practice\" here, it's to avoid pre-optimizing your code.  Now if only I could take my own advice :)","Q_Score":0,"Tags":"python,database,amazon-dynamodb,dynamodb-queries","A_Id":64266772,"CreationDate":"2020-10-08T12:18:00.000","Title":"Read entire item from database to begin with or make a second call when needed","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Tried installing requests-html through pip and pip3 in many different ways (recommendations from other StackOverflow threads) and I keep on getting the same error ImportError: No module named requests_html.\nChecked pip and pip3 list, both of them have requests and requests-html. Also my python is updated, its 3.7.6.\nAlso weirdly I started writing the code on jupyter notebook, and everything worked, however when I switched to sublime text that's where the problem occurred.\nPlease help.\nP.s. I am on a mac, and I am a beginer.","AnswerCount":3,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":2034,"Q_Id":64270822,"Users Score":0,"Answer":"I am no Mac expert but.. I know Mac has its own python2 and 3 inner versions which is critical for the OS to operate, so you maybe installed pip into those ones instead of the ones you are operating via PATH.","Q_Score":0,"Tags":"python,pip,python-requests,python-requests-html","A_Id":64270932,"CreationDate":"2020-10-08T21:24:00.000","Title":"\"ImportError: No module named requests_html\" after installing requests-html to pip and pip3","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Suppose I have a camera that captures images in real time and store them in a folder called \".\/static\".\nEach processed image should be displayed on a local web page using Flask python. That is, the results will be presented to the system user by displaying each processed image on the web page along with the image\u2019s gps data (which can be clicked to view image location on google maps) .\nAny help guys ?? thanks but I am new to Flask","AnswerCount":1,"Available Count":1,"Score":0.537049567,"is_accepted":false,"ViewCount":147,"Q_Id":64277333,"Users Score":3,"Answer":"You need to break down your problem into several, more manageable problems.\n\nmake sure your camera stores the pictures in the correct folder\ncreate a basic Flask app\ncreate a view for viewing one image\nextract the GPS data from one image\ncreate a link to Google Maps for that one image\ncreate a function which reads the whole directory of images\neither randomly choose a picture, or create an image gallery for all pictures\n\nThat is how I would proceed. Each bullet point is one unit of work.\nAnswering all of them here, ie create a complete application for you, is not the intended scope of StackOverflow.\nIf you have any more specific questions about a single bullet point, please create a new question.","Q_Score":0,"Tags":"python,html,flask,web","A_Id":64278589,"CreationDate":"2020-10-09T09:28:00.000","Title":"display dynamically images using flask","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a web server which I have developed an application on using php and SQL,  mainly picked php as I am more comfortable with it.\nIn short the application automates some of our network tasks .\nAs part of this I have automated some solarwinds tasks and the library orionsdk doesnt have a php library so I have used python.\nIt's all working fine but I really need to run these python scripts from my browser .\nI have considered using php shell exec and got my python scripts to accept args so I can run them and parse the output.\nI know I could also use flask or django but worry I will have a flask app to maintain aswell as a php app.\nI think the question is what the best way to achieve this or any way which I haven't mentioned .\nAny help would be very much appreciated","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":26,"Q_Id":64298228,"Users Score":0,"Answer":"So you want PHP to communicate with Python and you've already mentioned using shell commands and http traffic.\nI can imagine you could also achieve something similar by connecting up both PHP and Python up to the same database. In that case PHP could write a record in a table and Python could pick that up and do something with the data in there. Python could be either be a long-running process or fired off by a cronjob in this case. If a database seems overkill you could also write a file to some place on disk, which Python can pick up.\nPersonally I'd go for the shell exec approach if you want to keep it light weight and for a API connection if you want to have a more robust solution which needs to be expanded later on.","Q_Score":0,"Tags":"python,php,html","A_Id":64298521,"CreationDate":"2020-10-10T20:58:00.000","Title":"Best way to run python script alongside php and html","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have to extract Folium map to pgn\/img.\nI've tried a lot of path, via selenium, converting to pdf and reconvert to png, pdfkit, imgkit but nothing worked...\nSome help?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":171,"Q_Id":64303759,"Users Score":0,"Answer":"You can do it like this with Selenium :\n\nYou create your map with folium as an HTML file\nYou open your Selenium browser at the url file:\/\/{your_folder_path}\/{your_HTML_map_file}\nYou wait for a few seconds in order to use the method save_screenshot() from your Selenium browser","Q_Score":0,"Tags":"python,extract,folium,file-conversion,html-to-pdf","A_Id":64338111,"CreationDate":"2020-10-11T11:59:00.000","Title":"Python Folium export map error via pdfkit and selenium","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I create a Qweb Report that prints All products and their Movements during a specific period of time. i have checked  that all code and all functions,  everything is working very well.\nThe problem is that  odoo opens res.company form view unstead of printing the pdf report\nThanks for help.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":103,"Q_Id":64304048,"Users Score":1,"Answer":"MOHAMED\n=>. The problem is that odoo opens res.company from view instead of printing the pdf report\nSolution - you need to set the company the logo.if pop is raised and then try to print it will work.","Q_Score":0,"Tags":"python-3.x,odoo-12,qweb","A_Id":64311920,"CreationDate":"2020-10-11T12:31:00.000","Title":"Odoo 12 opens res.company form view instead of Qweb Report?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"In my scenario the function which does some backend updates is called when request is submitted takes a lot of time to return the value and as a result the session times out.\nSo my doubt is\n\nWhat happens in backend when session times out?\nDoes the function that was running stops running immediately as session timesout?\nWill the data from django session table be removed?\n\nI don't know much about django sessions and reading online didn't gave much clarity on doubts.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":18,"Q_Id":64304746,"Users Score":0,"Answer":"Yes, your code on backend that handles HTTP request continues to run when the request times out.","Q_Score":0,"Tags":"python,django","A_Id":64305024,"CreationDate":"2020-10-11T13:52:00.000","Title":"What happens when Django Session timesout?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"im using django for a face recogntion app and i need to save face descriptor in djangomodel and then retreive them and compare with the vectors of a new image and get the model in the database that have the nearest distance with the new vectore.\nso in short\n\ni have a model of persons\neach model have a textfield that represent a vector\ni have a function compare(vec1,vec2) that take two vectors as\nstrings and return the distance between them\ni have a new vector (not in the database)\ni need to apply the compare  function on the model and retrieve the\nperson that his vector field have the minimum distance with the new\nvector","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":348,"Q_Id":64306630,"Users Score":0,"Answer":"RDBMS is not for storing the vectors, you need to use either elastic search or opensearch to store the vectors and perform the similarity checks.","Q_Score":0,"Tags":"python,django,django-models","A_Id":68935121,"CreationDate":"2020-10-11T16:49:00.000","Title":"searching in a django models of vectors with a custom function","Data Science and Machine Learning":1,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"C:\\Users\\utkarsh>pip install django\nFatal error in launcher: Unable to create process using '\"c:\\users\\utkarsh\\appdata\\local\\programs\\python\\python38-32\\python.exe\"  \"C:\\Users\\utkarsh\\AppData\\Local\\Programs\\Python\\Python38-32\\Scripts\\pip.exe\" install django': The system cannot find the file specified.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":235,"Q_Id":64309274,"Users Score":0,"Answer":"in your cmd type \"python -m pip install django\"","Q_Score":0,"Tags":"python,django,cmd","A_Id":64310451,"CreationDate":"2020-10-11T21:38:00.000","Title":"I am unable to install django from command prompt. I am attaching the error. please show the path to me","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"My goal is to develop an application that can check my AWS S3 bucket for five files and once achieved, kick off the Lambda function that loads these files into my database. Loading files from an S3 event is working well. The issue I face is that, even when you upload all files at the same time, each file generates a single event. My loading function gets kicked off five separate times.\nI have some ideas on how to solve this issue. One approach is to consolidate the event notifications into one event. Is this possible? This approach would work because then I could have the process break if the client only uploads 4 files (and subsequently send an email saying to upload 5 files). Otherwise, in the event of 5 files, I can then kick off the Lambda to process everything in the bucket (if # objects in bucket = 5, of course! Which can be checked very easily.) This way, the Lambda function only runs one time.\nIn summary, I want the event notifications to be consolidated so I can run the Lambda function once instead of five times. Please advise if this is possible, and through which channel of AWS product I can find my solution in. Thank you.","AnswerCount":1,"Available Count":1,"Score":0.3799489623,"is_accepted":false,"ViewCount":66,"Q_Id":64321992,"Users Score":2,"Answer":"There is no such concept as \"event consolidation\".\nYou will need to:\n\nTrigger an AWS Lambda function on every upload\nThat Lambda function should first check that all 5 files have been upload\nIf so, it can process the files. If not, it should exit.\n\nThe hard part is sending a notification if they \"only upload 4 files\", because this would require waiting sufficient time to allow them to upload the remaining file(s) before sending a notification. This would suggest using an AWS Step Function with a Wait so that it can check the files after a given period. The Step Function could be triggered on the first file upload (that is, when the above Lambda function sees only one file).","Q_Score":1,"Tags":"python,amazon-web-services,amazon-s3,amazon-ec2,aws-lambda","A_Id":64325454,"CreationDate":"2020-10-12T16:48:00.000","Title":"AWS S3 Notification Consolidation","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"For my current web (reactJS) app, i need to implement a push notification system. Backend APIs are written in  Python on Django Framework. So how should i  implement socket, should I write in python, or may I write in node or node for the client-side and python for the server-side?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":321,"Q_Id":64337145,"Users Score":1,"Answer":"Are you looking for Web push or mobile app? The term push is really synonymous with 'push notifications' meaning the client will get them even if the app \/ website is open or not.\nIf that is what you are looking for then you need to be looking at service workers and push notification servers.\nIf you want to simply send alerts to users on your page you can for sure use a simple websocket or long poll done in JS with a node server to emit to.","Q_Score":1,"Tags":"socket.io,serversocket,python-sockets","A_Id":64362885,"CreationDate":"2020-10-13T14:25:00.000","Title":"Socket for push notification","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am building a training dataset on GCP's Natural Language AutoML Entity Extraction service. I have a fraction of my documents labeled and I want to export them to do some preliminary exploratory data analysis. I can add a filter to display \"Labeled\" docs, but if I try to export, it exports all my docs.\nIs there any way to export only those that fit the filter criteria? Via Python API would be fine too.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":92,"Q_Id":64340904,"Users Score":0,"Answer":"Indeed, the Export Data link in the AutoML console will always export the complete dataset. There is no option to export selected items only, however, there is an option to Delete selected items.\nA workaround that I suggest in order to achieve your task is to delete the \u2018unwanted\u2019 items. Let me explain.\nI suggest you perform the following steps.\n\nExport the complete dataset (so you don't delete anything from your production dataset).\nCreate a New Dataset in your AutoML project, by importing the complete dataset from Step 1.\nFilter the unlabeled documents.\nSelect all and delete (by doing this you delete the unlabeled data in your copy dataset).\n\nThis way, your new dataset will contain only the labeled documents and you can do Export Data and use the resulting set for your EDA.\nBest regards!","Q_Score":0,"Tags":"google-cloud-platform,google-cloud-storage,google-cloud-automl,google-cloud-python","A_Id":64649742,"CreationDate":"2020-10-13T18:17:00.000","Title":"Exporting a filtered subset of GCP Natural Language annotator","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have Very Comman issue might looks easy.I have Pushed my Django project on Live Digital Ocean server.I have done all the Configuration using Putty terminal.My project is Working Fine but when i close my Terminal,Project stopped working.I am using Digital Ocean Server.my Question is How to Keep Project Running after closing terminal? i will be Thankful if anyone can Help me with this issue.","AnswerCount":3,"Available Count":1,"Score":-0.0665680765,"is_accepted":false,"ViewCount":515,"Q_Id":64351181,"Users Score":-1,"Answer":"Im using Tmux - multisession terminal processor.","Q_Score":0,"Tags":"python,django,digital-ocean","A_Id":64351249,"CreationDate":"2020-10-14T10:17:00.000","Title":"How to Keep Django Project Running after Closing terminal?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"is it possible to close an active instance of connection ? like how we are connecting to an active instance using app = Application(backend=\"uia\").connect(path=r'D:\\Asem\\bin64\\AUT.exe') like this I want to close the instance via code and again connect whenever I required to validate the UI element , something like \"Application(backend=\"uia\").disconnectOrClose(path=r'D:\\Asem\\bin64\\AUT.exe')\"\nNote:iam not talking about closing the application(AUT) here, just the connection which we established via Application.connect","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":733,"Q_Id":64358242,"Users Score":0,"Answer":"If you want to keep the application running, just do del app for app object. If you want to kill\/close the app, use app.kill(soft=False). With soft=True it will try to close the app gracefully otherwise it is hard kill.","Q_Score":0,"Tags":"python,testing,automation,pywinauto","A_Id":64371082,"CreationDate":"2020-10-14T17:05:00.000","Title":"Python Pywinauto is it possible to Close a instance of Application connection ? I dont see any attribute as close or Disconnect with Application","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have an application that sends some data to a backend on a webserver where that data is being analysed and put through a neural network to come back with some other data that is being displayed on the client front-end.\nNow, when a lot of clients are connecting simultaneously, we have to scale up, and then down again + there is network latency and you always need an Internet connection.\nBecause the backend isn't doing that much, besides just analysing and putting data through a neural network... it would be ideal to put this backend functionality in each client... no more need to scale up (every client has his own backend on board) + no more network latency.\nThe problem is of course that the most valuable thing is the trained neural network data, that in this case should also be present on each client... and of course I don't want it to be stolen as it costed a lot of money to buy training data for our neural network + then we had to train it as well...\nSo my question is:\nIs there any way to run the backend neural network on the client side in a secure way, preventing our valuable trained neural network from being stolen?\nThank you for any advice!","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":28,"Q_Id":64366950,"Users Score":0,"Answer":"In short, there is no absolute way to prevent that, no.\nIf you give give a binary to be executed to a client, there will be ways for your client to copy it in some shape or form and execute it again.","Q_Score":2,"Tags":"python,neural-network,artificial-intelligence,backend","A_Id":64367350,"CreationDate":"2020-10-15T07:41:00.000","Title":"Secure ways of running backend functionality on client side","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to run two pip packages that require separate version requirements. They would run well in separate virtual environments but not in the same.\nI want to use these pip packages in the same app - a flask app. Any idea on how to go about this?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":34,"Q_Id":64369756,"Users Score":0,"Answer":"This is not possible.\nQuite often some libraries have overly specific restrictions on dependencies.\nI recommend to open an issue at their issue tracker and ask for less restrictive permissions.","Q_Score":0,"Tags":"python,flask,virtualenv,python-venv","A_Id":64375793,"CreationDate":"2020-10-15T10:38:00.000","Title":"Run multiple virtual enviroments in a single Flask or Django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I've been trying to use speech recognition. I know pyaudio is detecting my microphone, but when I record a wave file through pyaudio, there's no audio in the recording. My mic isn't muted.\nIm on mac and working in Visual Studio. Do I need to give microphone permission to VS?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":114,"Q_Id":64406933,"Users Score":0,"Answer":"I think it can be that VS doesen't have the permissions for your microphone, because your script is running directly from VS. Try enabling microphone permissions for VisualStudio following those steps:\n\nGo to Apple logo > Sistem Preferences > Security & Privacy > Privacy\nSearch for VisualStudio\nCheck the tickbox next to it.\n\nYou can try to running your script from Python directly.\nHope that this works for you.","Q_Score":0,"Tags":"python,macos,speech-recognition,pyaudio","A_Id":64407271,"CreationDate":"2020-10-17T20:19:00.000","Title":"Pyaudio detecting Microphone but not reviving audio","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"Building a Django app, I am trying to figure out what would be the best way to automate log file deletion.\nMy try so far is to build a admin command that delete old logs. From this I can setup a scheduler in python or at server's level but I am not very satisfied with this option because it makes more configuration steps to do during deployment.\nI was wondering if sub-classing log module to trigger a delete-log function on a log write would be a good idea. The pros would be that there is not setup to do a deployment, the cons would be to rely on log write to clean log directory could be useless if there is no log records for a long time. On the other hand it could be resource consuming if there is too many log records.\nSo first of all, is a log-delete triggered by any action could be a good idea and what would be the best action to choose (a daily one)?\nIf not, what would be the best option to perform this in a beautiful way?","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":766,"Q_Id":64412211,"Users Score":0,"Answer":"Main purpose of web frameworks is handling of web requests. And here logging is a kind of subsystem for creating breadcrumbs to getting a picture of what was done and what was not. Best match for subsystem is a separate log service i.e system log. Have you tried writing the logs to the system and rotate them using log rotation mechanics provided by your system?","Q_Score":0,"Tags":"python,django,logging","A_Id":64412396,"CreationDate":"2020-10-18T10:24:00.000","Title":"Automatically delete logs in Django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Problem: Not able to find\/click\/send.keys to any of elements on a specific webpage.\nWebDriver Chrome\nI can interact with that webpage until I click a certain link where a new tab is opened and from that page I'm unable to do anything.\nWhat I've tried so far after extensive research here:\n1- Since a new tab was opened, I've \"forced\" the code looking into the new tab using driver.switch_to.window and to be sure I've printed the current page title and it's the correct one.\n2- I've tried both implicit\/explicit waiting (even time.sleep) in order to wait for the page to load.\n3- Research pointed me to iframe.. I don't have any iframe but nevertheless I've searched for the number of frames (2) and switched between both and tried to find elements using xpath (full xpath) and none were find.\n4- Maximize window.\nSo I tried \"everything\" in the books. Inspecting the elements that I needed to interact I've found that every single one was pointing to a JS with some arguments.\n href=\"JavaScript:SWESubmitForm(document.SWEForm2_0,s_10,\"s_2_1_96_0\",\"VRId-0\")\" tabindex=\"2997\" id=\"s_2_1_96_0\">Track Faults \nLooking further found that s_10 is a variable within the script which have different options from s_0 to s_14.\n\nvar s_0 = {action:\"\/esales_enu\/start.swe\",target:\"_sweview\",SWECmd:\"GotoView\",SWEMethod:\"GotoView\",SWEView:\"L2C Track Channel Reference View BT\",SWEApplet:\"L2C New CZ Home Page Applet BT\",SWEReqRowId:\"0\",SWESP:\"false\",SWENeedContext:\"true\",SWEKeepContext:\"0\",SWEDIC:\"false\"};\n\nvar s_10 = {action:\"\/esales_enu\/start.swe\",target:\"_sweview\",SWECmd:\"GotoView\",SWEMethod:\"GotoView\",SWEView:\"New Portal Fault Search View ORH BT\",SWEApplet:\"L2C New CZ Home Page Applet BT\",SWEReqRowId:\"0\",SWESP:\"false\",SWENeedContext:\"true\",SWEKeepContext:\"0\",SWEDIC:\"false\"};\nSo I started searching and found driver.execute_script() and I've wrote:\ndriver.execute_script(\"SWESubmitForm(document.SWEForm2_0,s_10,'s_2_1_96_0','VRId-0')\")\nBut this occurs:\nselenium.common.exceptions.JavascriptException: Message: javascript error: SWESubmitForm is not defined \nWhat I'm missing here? Syntax? If someone can shed some light on which direction should I go, it will be really appreciated.\nThanks.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":69,"Q_Id":64415512,"Users Score":0,"Answer":"I was able to fix this and learn a few things. The JS \"theory\" I was taking didn't made any sense since the driver.execute_script() isn't used the way I was thinking but rather injecting code or finding elements as well.\nSecond, the solution was actually frames :)\nI was so focused in switching between the two frames I had found initially that for not one moment I thought that INSIDE those two frames could had been more frames!\nAnd basically that was it, after switching to the main frame, I've switched again to the 2nd frame inside that main one and was able to find through xpath.","Q_Score":0,"Tags":"javascript,python-3.x,selenium,selenium-webdriver","A_Id":64449627,"CreationDate":"2020-10-18T16:13:00.000","Title":"Selenium + Python - Not able to interact\/click with JavaScript","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm working with Gensim to extract keywords from HTML or text.\nMy environment is Centos 7 \/ Python 3.6 \/ Pip3.\nAfter checking Gensim source code, I found that Gensim Keywords API in Summarization module depends on pattern.\nKeywords.py:\ndef keywords(text, ratio=0.2, words=None, split=False, scores=False, pos_filter=('NN', 'JJ'),lemmatize=False, deacc=True):\nThe pos_filter and lemmatize feature depend on pattern.\nIf no pattern module avaiable, pos_filter is set to None, no filtering.\ntextcleaner.py:\nHAS_PATTERN is set by pattern.en module.\nIn my system, only pattern3 is available, pattern is only available for python2.7.\nHow to fix this problem?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":301,"Q_Id":64421012,"Users Score":0,"Answer":"The summarization functionality in Gensim is sufficiently ornery & idiosyncratic in its dependencies & behavior that it is being removed from the next (4.0.0) Gensim release.\nYou may want to seek alternate means of identifying keywords, depending on your exact needs. What's your ultimate goal?\nIf you have reason to believe the specific algorithms in the gensim-3.8.3 summarization module are beneficial for your needs, you might want to extract their key analyses into your own code without the same dependencies. (For example, if you think part-of-speech tagging is a crucial step for your application, you might choose to use POS-tagging from NLTK or SpaCy instead.)","Q_Score":0,"Tags":"python,design-patterns,gensim","A_Id":64436476,"CreationDate":"2020-10-19T04:03:00.000","Title":"How to fix the problem that Gensim not working with pattern3?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I kindly need your help to make django error reports by email.\nI use service account with Gmail API to authorize and send emails.\nHow can this work with default django error reporting send_email.\nI know I have to add the below to the settings and debug must be false:\nADMINS, MANAGERS, SERVER_EMAIL","AnswerCount":2,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":257,"Q_Id":64422269,"Users Score":0,"Answer":"I finally managed to send without setting up backend email.\n\nI setup the handlers in settings.\nCreated CustomAdminHandler.py and override send_mail with my own sending email function.\n\nNever thought its that simple.","Q_Score":0,"Tags":"python,django,django-settings,error-reporting,django-errors","A_Id":64581431,"CreationDate":"2020-10-19T06:37:00.000","Title":"Django Error reporting with Custom send_email","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I started coding in python - Django just few days ago .I am using windows 10 .\nI installed Django project with pip and virtual env.\nbut when I give this command :  django-admin startproject xxxxxx\nthe console is showing : Command not found: django-admin.py\nPlease help me to solve the issue.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":31,"Q_Id":64430083,"Users Score":0,"Answer":"Your commands are looking fine .\nSo do these things :\n\nCheck if django and virtual env  is installed correctly.\nIf not , then , remove virtual environment , reinstall it , then install django .\nRun the command again.\n\nIf you till facing the issue , let me know by comment.","Q_Score":0,"Tags":"python,django,pip,virtualenv","A_Id":64430131,"CreationDate":"2020-10-19T15:06:00.000","Title":"Django project setup issue with the command : django-admin startproject xxxxxx","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I need to upload a .exe file to a python Flask application as an URL parameter, preferably using cURL. If there is a better way, please tell me.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":25,"Q_Id":64447340,"Users Score":1,"Answer":"The HTTP protocol does not support uploading files using a GET request. You have  to use a POST request.","Q_Score":0,"Tags":"python,flask,curl","A_Id":64447380,"CreationDate":"2020-10-20T14:31:00.000","Title":"How to use cURL to upload a file as a GET request","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"The Root page of the site is:  amaze2020.herokuapp.com\nI need to save a verification .txt file into the root directory of amaze2020.herokuapp.com.","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":39,"Q_Id":64450693,"Users Score":1,"Answer":"For Herkou, unless specified otherwise, it should always be \"\/app\".","Q_Score":1,"Tags":"python,django","A_Id":64450881,"CreationDate":"2020-10-20T17:46:00.000","Title":"What is the root directory of a site deployed on heroku?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have an image loaded on-page and it's loaded from the database and I want to remove that object from the database when the tab is close how can I do that?\nframework- Django","AnswerCount":1,"Available Count":1,"Score":0.3799489623,"is_accepted":false,"ViewCount":71,"Q_Id":64458142,"Users Score":2,"Answer":"I don't think it's doable with Django, but to fulfil your requirement you can rather store that image in session instead of a database.","Q_Score":1,"Tags":"python,django,django-models","A_Id":64459176,"CreationDate":"2020-10-21T06:55:00.000","Title":"How to remove object from database on tab close django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have an existing django 3.0 project that I've integrated Wagtail 2.10.2 into. Wagtail seems to be working ok but the wagtail admin is super slow. The user facing pages themselves are fine.\nDjango debug toolbar shows that the delay is due to the browser request taking 5 - 8 seconds for each page load. The time panel shows 74601 involuntary context switches (5 voluntary.)\nThis is happening on a localserver. I have only a handful of wagtail page objects and the database size is small.\nI've run collectstatic and all the GET requests are either 200 or 304.\nCan anyone help?","AnswerCount":1,"Available Count":1,"Score":0.6640367703,"is_accepted":false,"ViewCount":402,"Q_Id":64467822,"Users Score":4,"Answer":"Following tomd's suggestion, I disabled django debug toolbar and the problem is resolved. See the links in his comments.","Q_Score":1,"Tags":"python-requests,wagtail,django-3.0","A_Id":64480408,"CreationDate":"2020-10-21T16:22:00.000","Title":"wagtail admin super slow page loads","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to implement py-abac for ABAC, Even if correct policies are getting retrieved from the storage, while the policy evaluation part is always giving \"Deny\" case. I tried to check the issue and found that even for matching rules also somehow it is giving none and always return deny. There is no resources or documentation available other than official documentation. If anybody tried py-abac please provide some lead. Thanks in advance.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":49,"Q_Id":64476486,"Users Score":0,"Answer":"The issue was with the format. In py-abac, PDP only gives correct output if the format is correct (following a specific format). If the format is different it causes a problem as mentioned in the question.","Q_Score":0,"Tags":"python,abac","A_Id":64642223,"CreationDate":"2020-10-22T06:28:00.000","Title":"py-abac pdp implementation failing for correct \"rules\" match also","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to host the django 3.1(python3.8) app on window 10 with WAMP64 and mod_wsgi API.\nAm able to preform the following command sucessfully.\n1- set \"MOD_WSGI_APACHE_ROOTDIR=C:\\wamp64\\bin\\apache\\apache2.4.46\"\n2- pip install mod_wsgi\nAnd the next command which is \"mod_wsgi-express module-config\" is throwing below error.\n'mod_wsgi-express' is not recognized as an internal or external command, operable program or batch file.\nPlease help me with, what am doing wrong.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":996,"Q_Id":64476554,"Users Score":0,"Answer":"Try with this one : pip install mod_wsgi-standalone\nfrom doc :\n\nWhen installing mod_wsgi-standalone, it will also install a version of\nApache into your Python distribution. You can only use\nmod_wsgi-express when using this variant of the package. The\nmod_wsgi-standalone package follows the same version numbering as the\nmod_wsgi package on PyPi.","Q_Score":1,"Tags":"python,django,mod-wsgi","A_Id":64479963,"CreationDate":"2020-10-22T06:34:00.000","Title":"mod_wsgi-express module-config issue","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am very new to Python, it`s about 6 months, I have a very basic question.\nWhere is the source of \"driver.page_source\", dose it retrieve and read from the local content of the website, I mean whatever server has already sent to the local page, or every time it will send a request or call directly to the website server.\nI want to scrape live data so I need to do \"driver.page_source\" every minute, while I don't want to disturb the website server by sending too many requests to the server.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":550,"Q_Id":64482921,"Users Score":0,"Answer":"driver.page_source retrieves the HTML of the url you passed on driver.get(url).\nIt gets the same code as seen on your browser when you click Inspect Element.\nIf you want specific elements and not the whole page though, you should loop up Xpaths and use driver.find_elements_by_xpath(xpath_expression).","Q_Score":0,"Tags":"python,selenium,webdriver,scrape","A_Id":64483335,"CreationDate":"2020-10-22T13:06:00.000","Title":"Python Selenium \"driver.page_source\" call from website server or local content","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"The rest of the apps do not seem relevant enough to make use one of their views as the main homepage.\nIs it a bad practice to create an app only for the homepage?\nWhat is the best practice for the homepage when developing in Django? Or at least the most common?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":61,"Q_Id":64483704,"Users Score":0,"Answer":"Can't really if it's a bad practice or not since as you said other functionality is not relevant but for sure it's a lot of work for just showing homepage, but you can do  tho if it's just rendering Html template with just js and CSS you can use .as_view() function that Django provides (if it does not get any data from your backend)","Q_Score":0,"Tags":"python,django","A_Id":64483998,"CreationDate":"2020-10-22T13:49:00.000","Title":"Create an app only for the homepage in Django?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Bottom-line up front: Is there a way to support non-Java discovery client made instances in Zookeeper, while providing custom metadata.\nI'm building a Spring Cloud API Gateway. We're using Zookeeper discovery for most of our routes and Spring Cloud Load Balancer. It works well for Java micro-services. In addition to normal discovery and load balancing, I want to use metadata to specify customization attributes; like security and rate limiting parameters.\nI'm needing to introduce some non-Java services written in Python, so I'm wanting to use discovery for those since they're hosted in a dynamic cluster. In this case, continuing to use Zookeeper makes a lot of since for us if I can get it to do what I need.\nI've inspected the contents of Zookeeper \/services node to see what's going on and I'm able to replicate most of it and actually get discovery and load balancing to work, but the metadata is a level deeper and I can't get that to work, as it's embedded in the Curator\/Zookeeper-specific object.\nI think I know enough to write my own implementation of DiscoveryClient and return my own ServiceInstances, but that seems like a lot of work if I can almost use what I already have. I'll also have to write the Python client for this as well.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":211,"Q_Id":64489391,"Users Score":0,"Answer":"I got around this by re-implementing the InstanceSerializer to manually build the ZookeeperInstance if the ObjectMapper doesn't recognize the ZookeeperInstance automatically.","Q_Score":0,"Tags":"python,service-discovery,spring-cloud-gateway,spring-cloud-zookeeper","A_Id":64611829,"CreationDate":"2020-10-22T19:39:00.000","Title":"Non-Java discovery registration for Spring Cloud Gateway\/Zookeeper","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"They used to save before, but all of a sudden they do not. I even have DEBUG = True and I have django.contrib.staticfiles in my installed apps. I'm not really what code I should provide, so if anyone needs any, please ask, and I'll send you the code. Thank You!\nEdit: So I've somewhat realized that the two times this has happened, was when I turned debug to false and back to true again.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":173,"Q_Id":64493951,"Users Score":0,"Answer":"So I reached out to someone else, and realized that all I had to do was hard refresh the page. Cmd+Shift+R on a mac and Ctrl+F5 on a windows machine.","Q_Score":0,"Tags":"python,css,django,server,django-staticfiles","A_Id":64507513,"CreationDate":"2020-10-23T04:39:00.000","Title":"Why do my changes not save in static css files in django?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Is it possible to escape all html tags except for the  tag somehow?\nI am sending a user entered string from a view to an html template where I have manually added  tags to the string in the view. I would like to allow for that to be shown, but of course omit all html tags entered by the user.","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":125,"Q_Id":64525541,"Users Score":1,"Answer":"The short answer to your question is that you could write your own filter to do this.\nA better solution IMHO would be to remove any tags from your user input, then add whatever tags you want, and then use the \"safe\" filter to display your modified text.","Q_Score":0,"Tags":"python,html,django","A_Id":64525619,"CreationDate":"2020-10-25T15:37:00.000","Title":"Django escape only certain HTML tags","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I refer to frameworks such as aiohttp, tornado, gevent, quart, fastapi, among others.\nIf you look for tutorials on how to use celery with django and flask to do things like background and periodic tasks, for example, to send an email when a user registers to confirm their account, you'll find a lot of content about it. But not with the ones above, or they are very few and talk about other topics than perform background or periodic tasks. Does this mean that with these frameworks I don't need celery because since they are asynchronous I can do the same?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":252,"Q_Id":64527328,"Users Score":2,"Answer":"Celery (and similar like Huey or RQ) has different purpose than the frameworks you have listed. No matter which framework you pick, in order to distribute execution of tasks among (potentially hundreds) nodes you would need to implement the whole system yourself. Things would get even more complicated if you want to implement something like Celery workflow...\nSo the answer ca be both YES and NO.\nNO: you do not need Celery if you want to implement all the functionality that Celery provides out-of-box by yourself.\nYES: more pragmatic - you use your async framework to implement your (web) service(s), but whenever you need to distribute execution of some either CPU intensive or long-running tasks, you use Celery, as that is what it is made for.","Q_Score":2,"Tags":"python,asynchronous,celery,web-frameworks","A_Id":64539115,"CreationDate":"2020-10-25T18:30:00.000","Title":"Do I need celery with asynchronous web frameworks?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I have a file of around 16mb in size and am using python boto3 upload_file api to upload this file into the S3 bucket. However, I believe the API is internally choosing multipart upload and gives me an \"Anonymous users cannot initiate multipart upload\" error.\nIn some of the runs of the application, the file generated may be smaller (few KBs) in size.\nWhat's the best way to handle this scenario in general or fix the error I mentioned above?\nI currently have a Django application that generates a file when run and uploads this file directly into an S3 bucket.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":266,"Q_Id":64528274,"Users Score":2,"Answer":"Ok, so unless you've opened your S3 bucket up for the world to upload to (which is very much NOT recommended), it sounds like you need to setup the permissions for access to your S3 bucket correctly.\nHow to do that will vary a little depending on how you're running this application - so let's cover off a few options - in all cases you will need to do two things:\n\nAssociate your script with an IAM Principal (an IAM User or an IAM Role depending on where \/ how this script is being run).\nAdd permissions for that principal to access the bucket (this can be accomplished either through an IAM Policy, or via the S3 Bucket Policy)\n\nLambda Function - You'll need to create an IAM Role for your application and associate it with your Lambda function. Boto3 should be able to assume this role transparently for you once configured.\nEC2 Instance or ECS Task - You'll need to create an IAM Role for your application and associate it with your EC2 instance\/ECS Task. Boto3 will be able to access the credentials for the role via instance metadata and should automatically assume the role.\nLocal Workstation Script - If you're running this script from your local workstation, then boto3 should be able to find and use the credentials you've setup for the AWS CLI. If those aren't the credentials you want to use you'll need to generate an access key and secret access key (be careful how you secure these if you go this route, and definitely follow least privilege).\nNow, once you've got your principal you can either attach an IAM policy that grants Allow permissions to upload to the bucket to the IAM User or Role, or you can add a clause to the Bucket Policy that grants that IAM User or Role access. You only need to do one of these.\nMulti-part uploads are performed via the same S3:PutObject call as single part uploads (though if your files are small I'd be surprised it was using multi-part for them). If you're using KMS one small trick to be aware of is that you need permission to use the KMS key for both Encrypt and Decrypt permissions if encrypting a multi-part upload.","Q_Score":0,"Tags":"python-3.x,amazon-web-services,amazon-s3,boto3","A_Id":64529021,"CreationDate":"2020-10-25T20:10:00.000","Title":"Uploading a file through boto3 upload_file api to AWS S3 bucket gives \"Anonymous users cannot initiate multipart uploads. Please authenticate.\" error","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to push code review +1 using 'on_behalf_of' in the Body long with Label field. but i am getting response code 403, it giving below response message\nResponse:\n'not permitted to modify label \"Code-Review\" on behalf of \"\"\nbelow is my post body\nURL:- 'http:\/\/\/base-url\/changes\/\/revisions\/current\/review'\ndata: {'on_behalf_of': 'user-name@mail.com', 'labels': {'Code-Review': 1}}\nUser-name is Service account or faceless ID, I don't have credential of it.\nCan anyone suggest  how to push code-review using Group\/Service-account id? where do we get the permission for this post?\nRegards","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":289,"Q_Id":64537301,"Users Score":0,"Answer":"To isolate all permission issues:\nApart from the command executer is having \"Label Code-Review (On Behalf Of)\" permission, the user in the context of 'on_behalf_of' should have permission to vote for Code-Review.","Q_Score":0,"Tags":"python,rest,gerrit","A_Id":69994840,"CreationDate":"2020-10-26T12:40:00.000","Title":"How to push code-review label on Gerrit onbehalf of other User","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm working on a django app which is based on consuming an external ZeroMQ message queue - it listens to the queue all the time, processing the messages and saving the outcome in the database. The data will be in the future made accessible to the users by API.\nCurrently I'm running it by a custom management command listen, which runs an infinite loop and it works fine. However, whenever some kind of error appears (and they will sometimes appear, it's an external data source) the command dies.\nWhat's the best approach to handle such errors? Things I'm considering:\n\nBash script which will restart the command on failure\nBig Try... except Exception in the main command function (but this seems extremely wrong)\nSome custom exception handler - the problem is that the recommended handlers only handle errors in views\/requests, and my command is not a view\/request, it just runs.\n\nAny advice would be useful, maybe it's a misuse of the management command?","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":223,"Q_Id":64563577,"Users Score":1,"Answer":"I have a command that is a crawler and I am wrapping my handle method's code with a try\/except clause to avoid stopping on errors. But I noticed that when Django triggers a database exception the command will stop, ignoring the try\/except blocks. I didn't find out why yet.\nI think that is the best option for commands that should run \"forever\" (on run for a long period of time).","Q_Score":1,"Tags":"python,django,exception,message-queue,django-management-command","A_Id":68999029,"CreationDate":"2020-10-27T22:08:00.000","Title":"How to handle management command exception in django app?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"In my django app I have a main page which shows the numbers of books for each genre in a table and it also has a search bar that allows filtering of the books by Genre, title or author which then posts the data to a search page and allows viewing of the book entries in a table.\nOn the search results page I want to then be able to additionally filter the same set of data further using an extended set of search bars - including the original filters, plus filters such as publish date and rating.\nIn the extended search I would not want to lose the original search - so for example if I search for horror genre on the main page and then wish to filter that further to only include highly rated books on the sesrch page I dont want to lose the horror filter if I don't add the filter again.\nIs this possible? Essentially I'm wondering if you can apply different filters to a single view?\nThank you in advance","AnswerCount":3,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":52,"Q_Id":64563760,"Users Score":0,"Answer":"I'm not sure if you want the select of genres in the extended filter, or not?\nBecause if yes, I don't see the problem...?\nIf not, why not use a hidden input to pass genre along?\nforms.CharField(widget=forms.HiddenInput())","Q_Score":0,"Tags":"python,django","A_Id":64563965,"CreationDate":"2020-10-27T22:26:00.000","Title":"Djangon 2.2 filtering a single data set across pages","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Have not found anyone complaining about this yet, but:\nHave a flask app, normal static folder with js, css, and and image folder under it.\nThe css, js go to the web page normally from the static folder, but the images:\nsky1.jpg    works.\nsky_1.jpg  does not work. Get a 404 in chrome.\nworks:\nimg class=\"img-thumbnail\" src=\"{{ url_for('static', filename='imagesUI\/sky1.jpg') }}\"\ndoes not work:\nimg class=\"img-thumbnail\" src=\"{{ url_for('static', filename='imagesUI\/sky_1.jpg') }}\"\nIs there a file naming convention in flask that precludes any other character than alphabetic and numeric?\nI want to put date info in the filename and it is not allowing it.\nubuntu 18.04\ndebugging under VSC\nflask dev server\nDebug on\nThx","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":172,"Q_Id":64565115,"Users Score":0,"Answer":"Instead of src=\"{{ url_for('static', filename='imagesUI\/sky_1.jpg') }}\nuse src='\/static\/imagesUI\/sky_1.jpg'","Q_Score":0,"Tags":"html,python-3.x,flask","A_Id":64567973,"CreationDate":"2020-10-28T01:15:00.000","Title":"flask static image filenames with non-alphabet characters not working","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Have not found anyone complaining about this yet, but:\nHave a flask app, normal static folder with js, css, and and image folder under it.\nThe css, js go to the web page normally from the static folder, but the images:\nsky1.jpg    works.\nsky_1.jpg  does not work. Get a 404 in chrome.\nworks:\nimg class=\"img-thumbnail\" src=\"{{ url_for('static', filename='imagesUI\/sky1.jpg') }}\"\ndoes not work:\nimg class=\"img-thumbnail\" src=\"{{ url_for('static', filename='imagesUI\/sky_1.jpg') }}\"\nIs there a file naming convention in flask that precludes any other character than alphabetic and numeric?\nI want to put date info in the filename and it is not allowing it.\nubuntu 18.04\ndebugging under VSC\nflask dev server\nDebug on\nThx","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":172,"Q_Id":64565115,"Users Score":0,"Answer":"use src='\/static\/imagesUI\/sky_1.jpg' in img tag that might do it","Q_Score":0,"Tags":"html,python-3.x,flask","A_Id":64567989,"CreationDate":"2020-10-28T01:15:00.000","Title":"flask static image filenames with non-alphabet characters not working","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"So I'm deleting an object of a model using DeleteView and redirecting to homePage after successful deletion, works fine. But the problem is when I try to get back to the previous page after deletion(using the left arrow button in the browser). I get \"page not found\" error which makes total sense because I'm trying to get back to the deletion page of an object which no longer exist. How do I prevent this from happening?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":52,"Q_Id":64591584,"Users Score":0,"Answer":"If you are using class-based (generic) views to delete, you can use reverse_lazy to redirect after delete. In case you are using functional views, you can redirect after the successful deletion of the object from the Database.","Q_Score":0,"Tags":"python,django,web","A_Id":64599984,"CreationDate":"2020-10-29T12:58:00.000","Title":"Getting \"page not found\" error while trying to go back to the previous page after successful deletion using DeleteView in django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm hosting a web server with Django framework .\nThen , I'm using Notepad++ NppFTP to modify and upload those files .\nI can modify the html files and upload to ftp server instantly with Notepad++ NppFTP  .But for updating view.py , I found that even though it says  view.py 100% upload success , the web seems to be unchanged regarding to the new view.py file .\nIs that the way to modify the view.py file different to modifying HTML files ?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":36,"Q_Id":64601300,"Users Score":0,"Answer":"You shouldn't have any issues modifying a views.py file.  Check your permissions on the file and double check the directory you're uploading it to.\nIf you're on Linux,  in a terminal type ll (the letter L) and see who owns the file and directory.","Q_Score":0,"Tags":"python,django,server,webserver,notepad++","A_Id":64601343,"CreationDate":"2020-10-30T00:53:00.000","Title":"Unable to make any changes to view.py file","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"We have a module that help us in reporting taxes. It is currently installed with version number 12.0.2. Now the newest version is 12.0.3. and we are about to update it manually.\nSince we are using on-premise Odoo, my approach is to transfer the files using FTP to our server's custom add-on folder and upgrade it via odoo's apps menu. I did my first attempt update by making a backup of current module's folder and transfer the newest version with the same folder name, but it didn't worked.\nShould i just paste the recent version files to the old folder instead and restart the service\/server? or is there any proper way to update the current module to newest version?\nThank you","AnswerCount":3,"Available Count":3,"Score":0.1325487884,"is_accepted":false,"ViewCount":279,"Q_Id":64601656,"Users Score":2,"Answer":"Try:\n\nselect + delete your module from (apps list) UI\nbackup old module version anywhere\nupload last version\nrestart service odoo\ngo back to apps list with debug mode (update list modules)\nsearch + install your module\n\nwish that help you ;)","Q_Score":2,"Tags":"python,xml,odoo,erp","A_Id":64628651,"CreationDate":"2020-10-30T01:46:00.000","Title":"Update Existing Module To Newest Version in Odoo 12","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"We have a module that help us in reporting taxes. It is currently installed with version number 12.0.2. Now the newest version is 12.0.3. and we are about to update it manually.\nSince we are using on-premise Odoo, my approach is to transfer the files using FTP to our server's custom add-on folder and upgrade it via odoo's apps menu. I did my first attempt update by making a backup of current module's folder and transfer the newest version with the same folder name, but it didn't worked.\nShould i just paste the recent version files to the old folder instead and restart the service\/server? or is there any proper way to update the current module to newest version?\nThank you","AnswerCount":3,"Available Count":3,"Score":0.1325487884,"is_accepted":false,"ViewCount":279,"Q_Id":64601656,"Users Score":2,"Answer":"Itss two step process.\n\nUpdate module files in the add-ons folder\nGive Odoo the upgrade command\n\nFrom the Apps\nOr from the command line using -u <module_name>\n\n\n\nYou may need restart the Odoo server.\nIn the Apps Application There is Upgrade Apps list button that may needs pressing.\nIf you have updated module files in the add-ons folder the you need to give the upgrade command to. otherwise unexpected errors may happen. (Odoo loads new code but does not upgrade database and views)","Q_Score":2,"Tags":"python,xml,odoo,erp","A_Id":64604291,"CreationDate":"2020-10-30T01:46:00.000","Title":"Update Existing Module To Newest Version in Odoo 12","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"We have a module that help us in reporting taxes. It is currently installed with version number 12.0.2. Now the newest version is 12.0.3. and we are about to update it manually.\nSince we are using on-premise Odoo, my approach is to transfer the files using FTP to our server's custom add-on folder and upgrade it via odoo's apps menu. I did my first attempt update by making a backup of current module's folder and transfer the newest version with the same folder name, but it didn't worked.\nShould i just paste the recent version files to the old folder instead and restart the service\/server? or is there any proper way to update the current module to newest version?\nThank you","AnswerCount":3,"Available Count":3,"Score":1.2,"is_accepted":true,"ViewCount":279,"Q_Id":64601656,"Users Score":2,"Answer":"In case of module updates, don't forget a few points:\n\nyou should use the same folder for your addons upgrades, the best way is to use git or any similar tool\nif your upgrade concerns XML-based stuff, just upgrade the module from Odoo's application list, but if it's code, you must restart Odoo. In rare circumstances, I have even seen older python-compiled files remain in place instead of being replaced. So most of the time I delete them\nif you would like to test the new version before replacing the existing one, don't forget to check the order of the addons folders list: the one containing the new version must be placed before. I know this is obvious but it may happen...","Q_Score":2,"Tags":"python,xml,odoo,erp","A_Id":64660459,"CreationDate":"2020-10-30T01:46:00.000","Title":"Update Existing Module To Newest Version in Odoo 12","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"So, I'm in this situation on Odoo v13:\nI have a bunch of portal user, and on some condition I want to add them to an internal group (this group is result of my code, not others). But on adding process, Odoo return an error of: User can have only one user type. And I know that's caused by I want to add a portal user to an internal group.\nMy question is: How can I change an internal group to a portal group with the same access rights and record rules?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":431,"Q_Id":64602772,"Users Score":0,"Answer":"you just add all access rights and record rules to group base.group_portal, that's how it works!","Q_Score":0,"Tags":"python-3.x,security,web,odoo-13,access-rights","A_Id":64797359,"CreationDate":"2020-10-30T04:32:00.000","Title":"How to set group access rights to portal users","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Hope everybody is safe and happy.\nI have given a AWS task as follow.\nRequirement: As soon as file gets uploaded in s3 bucket,it should be zipped and must be uploaded back to another s3 bucket.\nI am able to complete this task using lambda(python) but it involves lots of disk IO. So ,i am looking for a solution where i will not require to store incoming s3 object at \/tmp\/ folder. As we all know , lambda provides very less memory and storage(500MB). Hence, wants to avoid this approach.\nSo, does anybody aware of how to zip the incoming s3 file on the fly? I am only aware that, it possible to do with the help of streaming of s3 object. But not able to find how it can be achieved end to end using python language.\nThanks in advance.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":1029,"Q_Id":64607873,"Users Score":0,"Answer":"You can use python generators in the Lambda to zip the s3 files and put the zip file back in another s3 as the generators doesn't occupy memory.","Q_Score":0,"Tags":"python,amazon-web-services,amazon-s3,aws-lambda,zip","A_Id":64608079,"CreationDate":"2020-10-30T11:53:00.000","Title":"How to create zip file and upload back to s3 using lambda python?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have been learning vpython, and I am making a lunar lander copy for a school project. I was wondering if there is any way to embed a vpython canvas or window on a webpage. Thanks!","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":261,"Q_Id":64615705,"Users Score":1,"Answer":"At glowscript.org you can export your program to JavaScript and embed it in a web page. On the page where you edit your GlowScript VPython progrm, click \"Shae or export this program\". However, because at glowscript.org your Python code is transpiled to JavaScript, you can't import arbitrary Python modules.","Q_Score":1,"Tags":"html,embed,vpython","A_Id":64686030,"CreationDate":"2020-10-30T20:59:00.000","Title":"Can I embed a vpython on an html page?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to login to site: 'https:\/\/portal.librus.pl\/rodzina\/synergia\/loguj' with requests in python, unfortunately if you inspect and go to network settings it shows main method without 'form data', in addition it has csrftoken placed in script like this:\nscript type=\"text\/javascript\">\nvar csrfTokenName = \"requestkey\";\nvar csrfTokenValue = \"MC44MDU4NjQwMCAxdjA0MDk5NtjdKdm32NdksMkfmuMTU0NzZjMTNi1WE1ZmJdfmUdfOpNIlhMDQx\";\n<\/script\nSo i don't really know how to get the content out of this regard you got hundreds of script tags in html file\nSo the question is how to login to this site?\n(i've watched all tutorials on internet, and non of them work)","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":50,"Q_Id":64616982,"Users Score":0,"Answer":"I've found the request inside network tab and this is the things that I saw (I might have missed some information cause I got error for not having account).\n\n\nIn network tab if you try to login with non empty values you will have a POST request with name 'action'.\nInside this request you will find the URL you want \"https:\/\/portal.librus.pl\/rodzina\/login\/action\"\nAnd last part is the form data in the bottom","Q_Score":0,"Tags":"authentication,web-scraping,python-requests,csrf-token","A_Id":64630295,"CreationDate":"2020-10-30T23:30:00.000","Title":"Loging with python without form data","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a Bokeh HTML file. I want to load it into a python program and overlay another shape, say a circle on it.\nHow can I do it?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":30,"Q_Id":64638518,"Users Score":0,"Answer":"There is not any good way to do this.\nOnce you have exported Bokeh to HTML, it's not in a form that can be further manipulated. If you extract the Bokeh JSON payload in side the HTML you could in principal do \"surgery\" on it to insert new JSON for additional glyphs. But this would be incredibly fragile, highly dependent on matched version and probably hacked object IDs to avoid ID collisions.","Q_Score":0,"Tags":"python-3.x,bokeh","A_Id":64638760,"CreationDate":"2020-11-02T00:54:00.000","Title":"Load from Bokeh HTML file and overlay other shapes?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am running a scraper that crawls about 25 domains with in total about 100k pages. The speed in the beginning is about 500 pages per minute, but it slows down considerably afterwards to about one hundred pages per minute. My reasoning was that this could be due to the throttling that I enabled in the settings.py file. Yet, after running the spider for five hours, I noticed that the speed went even down to about 5 pages per minute.\nMy initial understanding was that the spider would probably be stuck at one domain that was slow in responding. However, this understanding didn't make sense anymore when I spotted some huge fluctuations in the scraping speed. After being stuck for hours in the range 0-20 pages per minute, occasionally there is a speed up to 100-500 pages per minute(mosttimes for only one or two minutes). How could the latter speedups be explained considering that a domain would be slowing down in its responses to me?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":34,"Q_Id":64659107,"Users Score":0,"Answer":"Your initial understanding is probably correct - sound like you are getting temporarily throttled which results in fluctuating speeds.","Q_Score":0,"Tags":"python,web-scraping,scrapy,throttling","A_Id":64659274,"CreationDate":"2020-11-03T08:21:00.000","Title":"How do unexpected speed fluctuations in Scrapy relate to throttling?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I ran the following code in python shell:\n\nfrom main.models import ToDoList\nls = ToDoList.objects.all()\nls\noutput: <QuerySet [<ToDoList: First List>, <ToDoList: Second List>]>\n\nbut when I use:\n\nls = ToDoList.objects.get(id=1)\n\nit says:\n\nmain.models.ToDoList.DoesNotExist: ToDoList matching query does not exist.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":42,"Q_Id":64676186,"Users Score":0,"Answer":"You can use: ToDoList.objects.first() to get the first item.\nor use ToDoList.objects.get(pk=1) to get item based on PK","Q_Score":0,"Tags":"python-3.x,django","A_Id":64676255,"CreationDate":"2020-11-04T08:06:00.000","Title":"How to access Django's single set item?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to introduce data quality testing (empty fields\/max-min values\/regex\/etc...) into my pipeline which will essentially consume kafta topics testing the data before it is logged into the DB.\nI am having a hard time choosing between the Deequ and Great Expectations frameworks. Deequ lacks clear documentation but has \"anomaly detection\" which can compare previous scans to current ones. Great expectations has very nice and clear documentation and thus less overhead. I think neither of these frameworks is made for data streaming specifically.\nCan anyone offer some advice\/other framework suggestions?","AnswerCount":2,"Available Count":1,"Score":1.0,"is_accepted":false,"ViewCount":2871,"Q_Id":64711388,"Users Score":6,"Answer":"As Philipp observed, in most cases batches of some sort are a good way to apply tests to streaming data (even Spark Streaming is effectively using a \"mini-batch\" system).\nThat said: if you need to use a streaming algorithm to compute a metric required for your validation (e.g. to maintain running counts over observed data), it is possible to decompose your target metric into a \"state\" and \"update\" portion, which can be properties of the \"last\" and \"current\" batches (even if those are only one record each). Improved support for that kind of cross-batch metric is actually the area we're most actively working on in Great Expectations now!\nIn that way, I think of the concept of the Batch as both baked deeply into the core concepts of what gets validated, but also sufficiently flexible to work in a streaming system.\nDisclaimer: I am one of the authors of Great Expectations. (Stack Overflow alerts! :))","Q_Score":3,"Tags":"python,great-expectations,amazon-deequ","A_Id":64715840,"CreationDate":"2020-11-06T08:45:00.000","Title":"Data testing framework for data streaming (deequ vs Great Expectations)","Data Science and Machine Learning":1,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a project and it works well when I run the project in pycharm\nBut when I deploy this project on the server, it has a problem\nThe problem is using pandas toolkits\nIt works well when I remove \"import pandas as pd\" from the files on the server, but when I use this toolkit, the project does not work\nIt should be noted that after Deploy, when this package is used in one of the files, the whole project does not work\nI use Apache\nThe version of packages on the server and local is the same\nPandas version is 1.1.2","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":66,"Q_Id":64712258,"Users Score":0,"Answer":"1: Make sure Pandas is installed in your deployment environment.\n2: If you are using shared hosting than perhaps they have some restrictions.","Q_Score":0,"Tags":"python,django,pandas,deployment","A_Id":64712493,"CreationDate":"2020-11-06T09:46:00.000","Title":"Django app does not work after Deploy when I used Pandas","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I read through the documentation, but something wasn't clear for me: if I coded a custom layer and then used it in a model, can I just save the model as SavedModel and the custom layer automatically goes within it or do I have to save the custom layer too?\nI tried saving just the model in H5 format and not the custom layer. When I tried to load the model, I had an error on the custom layer not being recognized or something like this. Reading through the documentation, I saw that saving to custom objects to H5 format is a bit more involved. But how does it work with SavedModels?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":180,"Q_Id":64723898,"Users Score":0,"Answer":"If I understand your question, you should simply use tf.keras.models.save_model(<model_object>,'file_name',save_format='tf').\nMy understanding is that the 'tf' format automatically saves the custom layers, so loading doesn't require all libraries be present. This doesn't extend to all custom objects, but I don't know where that distinction lies. If you want to load a model that uses non-layer custom objects you have to use the custom_objects parameter in tf.keras.models.load_model(). This is only necessary if you want to train immediately after loading. If you don't intend to train the model immediately, you should be able to forego custom_objects and just set compile=False in load_model.\nIf you want to use the 'h5' format, you supposedly have to have all libraries\/modules\/packages that the custom object utilizes present and loaded in order for the 'h5' load to work. I know I've done this with an intializer before. This might not matter for layers, but I assume that it does.\nYou also need to implement get_config() and save_config() functions in the custom object definition in order for 'h5' to save and load properly.","Q_Score":0,"Tags":"python,tensorflow,model,save","A_Id":68923767,"CreationDate":"2020-11-07T02:37:00.000","Title":"Saving Tensorflow models with custom layers","Data Science and Machine Learning":1,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a method which prints a pdf report and downloads it to the OS in Odoo 13 upon clicking a button. Now, I need to get (access) the path (where it is downloaded) of this report (file) and store it in ir_attachment table of Odoo. After storing the file (report) path then I want to have a button which fetch this report from it's the path stored in database and shows it in browser for a portal user in website module. I searched a lot but could not find anyway to do it. Can anyone help me if is it possible and if yes how?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":482,"Q_Id":64727272,"Users Score":0,"Answer":"Have you check with this method get_portal_url(report_type='pdf', download=True)?","Q_Score":0,"Tags":"javascript,python,odoo,odoo-12,odoo-13","A_Id":64731033,"CreationDate":"2020-11-07T11:39:00.000","Title":"How to get the path of a pdf report downloaded in a browser in Odoo 13?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a python script stored in one of my S3 buckets, I want to create a lambda function to execute this python script along with passing parameters to my python script.\nThings I tried -\nI am successfully able to read my python script from the lambda handler function using boto3.\nCreated the environment variables successfully to pass to my python script.\nGot a few answers from Stackoverflow that I can copy the script to \/tmp and then import and execute. That is not working.\nQuestion - Reading is fine but how to execute the python script.\nLet me know the options.\nThank You.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":154,"Q_Id":64747153,"Users Score":0,"Answer":"we can create one more AWS Lamba and call from main Lambda. For this you need to create a IAM role to execute the Lambda from Lambda.","Q_Score":0,"Tags":"python,amazon-web-services,aws-lambda","A_Id":71559800,"CreationDate":"2020-11-09T07:09:00.000","Title":"How to execute a python script stored in AWS S3 using AWS Lambda","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I read in a few places that if you're using etags you might run into issues if your app is horizontally scaled. Does Django's ConditionalGetMiddleware work out of the box if you run multiple app servers behind a load balancer?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":105,"Q_Id":64772860,"Users Score":0,"Answer":"I didn't end up using etags, instead I used the Last-Modified header.","Q_Score":0,"Tags":"python,django,wagtail","A_Id":64794580,"CreationDate":"2020-11-10T16:31:00.000","Title":"Does Django's ConditionalGetMiddleware play nicely with multiple servers behind a load balancer?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am using scrapy to collect data. Running spiders using scrapyd. The file with the results is added by default to\n\n\/data\/scrapyd\/items\/ {spider_name }\/ {job_id }.jl\n\njob_id - Installs scrapyd. Please tell me if it is possible to manually specify the title instead of job_id?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":50,"Q_Id":64773379,"Users Score":0,"Answer":"curl http:\/\/localhost:6800\/schedule.json -d project=project_name -d spider=spider_name -d jobid=custom_jobid","Q_Score":0,"Tags":"python,scrapy,scrapyd","A_Id":64775985,"CreationDate":"2020-11-10T17:02:00.000","Title":"set the format of the scrapyd output file","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"How do you get a Ruby, Python and Node.js development environments running on Apple Silicon architecture. What about virtualization software e.g. Docker?","AnswerCount":4,"Available Count":1,"Score":-1.0,"is_accepted":false,"ViewCount":18717,"Q_Id":64774787,"Users Score":-15,"Answer":"Seems everything will work as is...\nFrom the event presentation they said \"Existing Mac apps that have not been updated to Universal will run seamlessly with Apple\u2019s Rosetta 2 technology.\"","Q_Score":32,"Tags":"python,node.js,ruby,docker,apple-silicon","A_Id":64775397,"CreationDate":"2020-11-10T18:37:00.000","Title":"Running Ruby, Node, Python and Docker on the new Apple Silicon architecture?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":1,"Web Development":1},{"Question":"My company offers a financial product (on-prem) built in C#, SQL Server (back end) and Angular (front end) with Microsoft IIS as web server. The back end is mostly done in the database layer, using a bunch of dynamic SQL\/stored procedures, where the C# part mostly handles communication with the front end.\nNow we want to introduce a machine learning product into the same front end. However, the issue is that the data science team codes in Python. Instead of having C# execute Python scripts, we've talked about making a Python micro service. This would allow the data science team to work independently.\nThe service would be a ML app that's build into a Python web framework (such as Django, FastAPI, etc) and then containerized using Docker. The app will also handle authentication. Communication to and from the app is through RESTful API's and a DB connection to a on-prem database. We assume that the primary product and the microservice is running on the same server (\"next\" to each other).\nWe want the front end to communicate with both back ends (the primary product and the microservice). Can this be done? Or more importantly, should this be done?","AnswerCount":2,"Available Count":2,"Score":0.2913126125,"is_accepted":false,"ViewCount":518,"Q_Id":64781359,"Users Score":3,"Answer":"Yes it can be done as i can understand your backends are REST services as long as they are REST nothing is gonna change also Angular has good HttpClient wrappers which will handle all the REST call easily and nicely","Q_Score":0,"Tags":"python,c#,angular,docker,iis","A_Id":64781772,"CreationDate":"2020-11-11T06:12:00.000","Title":"Can a frontend (in Angular) handle multiple backends?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"My company offers a financial product (on-prem) built in C#, SQL Server (back end) and Angular (front end) with Microsoft IIS as web server. The back end is mostly done in the database layer, using a bunch of dynamic SQL\/stored procedures, where the C# part mostly handles communication with the front end.\nNow we want to introduce a machine learning product into the same front end. However, the issue is that the data science team codes in Python. Instead of having C# execute Python scripts, we've talked about making a Python micro service. This would allow the data science team to work independently.\nThe service would be a ML app that's build into a Python web framework (such as Django, FastAPI, etc) and then containerized using Docker. The app will also handle authentication. Communication to and from the app is through RESTful API's and a DB connection to a on-prem database. We assume that the primary product and the microservice is running on the same server (\"next\" to each other).\nWe want the front end to communicate with both back ends (the primary product and the microservice). Can this be done? Or more importantly, should this be done?","AnswerCount":2,"Available Count":2,"Score":1.2,"is_accepted":true,"ViewCount":518,"Q_Id":64781359,"Users Score":3,"Answer":"Yes, Angular is a front-end which is a client so it is not care about the language of REST APIs so it can deal with different APIs on different hosts with different languages.","Q_Score":0,"Tags":"python,c#,angular,docker,iis","A_Id":64781446,"CreationDate":"2020-11-11T06:12:00.000","Title":"Can a frontend (in Angular) handle multiple backends?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to let users connect their domains to my site.\nFor example, a user has bought example.com (the domain) and wants that when someone types example.com in the browser, what the browser shows is my app. I have everything configured and working except for the ALLOWED_HOSTS setting. If I add manually the domain to my ALLOWED_HOSTS it works. But, in production server, users will be creating this connections at anytime, I can't be adding this lines manually and restarting the server.\nIs there a different way of achievings this without making\nALLOWED_HOSTS = ['*',]\nIf there is no other way, I'm not sure which is the safest way to check request.get_host() in a middleware. If someone could guide me, I'd be eternally thankfull.\nI hope I explained myself good enough.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":115,"Q_Id":64803199,"Users Score":0,"Answer":"At the end the best way was allowing everything on django ALLOWED_HOSTS, and then configuring correctly the server in production, in my case Nginx and gunicorn to only allow what I want.","Q_Score":0,"Tags":"python,django,dns,middleware","A_Id":65305030,"CreationDate":"2020-11-12T11:37:00.000","Title":"Is the a way to make ALLOWED_HOSTS accept new domains dynamically in Django?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am a beginner with django and I accidentally deleted the db.sqlite3 file in my django project.\nI made a new django project but the db.sqlite3 file was not in it. I also uninstalled and reinstalled django and project but the db.sqlite3 file still wasn't there in the project. What do I do.\nThank you.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":369,"Q_Id":64808378,"Users Score":0,"Answer":"I am a beginner with django and I accidentally deleted the db.sqlite3 file in my django project. I made a new django project but the db.sqlite3 file was not in it. I also uninstalled and reinstalled django and project but the db.sqlite3 file still wasn't there in the project. What do I do. Thank you.\n\n\nDelete everything except init.py file from migration folder in all django apps\nMake changes in your models (models.py).\nRun the command python manage.py makemigrations or python3 manage.py makemigrations\nThen run the command python manage.py migrate.","Q_Score":1,"Tags":"python,django","A_Id":64808467,"CreationDate":"2020-11-12T17:02:00.000","Title":"How do I reinstall the db.sqlite3 file in django","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have an external drive from my old PC and I would like to continue working on some projects there, I have set up python but on my VSCode I keep getting \"workspace contains pipfile but pipenv was not found\". What's the solution to this?","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":94,"Q_Id":64809751,"Users Score":0,"Answer":"Create a virtual env in the folder you'll be working in. Install Django together with other dependencies you'll be using. Wallah you're ready to start working.","Q_Score":2,"Tags":"python,django,visual-studio-code,pip,pipenv","A_Id":64809854,"CreationDate":"2020-11-12T18:32:00.000","Title":"How can I work on a django project in my external harddrive","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I need to create a presentation from a presentation that already exists.\nI have to update the text by adding graphics or tables and keeping the format of a slide present in the template.\nBut there is no possibility to clone slides.\nHas anyone found a solution?\nThanks","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":584,"Q_Id":64812094,"Users Score":1,"Answer":"This is not readily accomplished with python-pptx. You might be better off pursuing a Visual Basic for Applications (VBA) solution. That needs to run in a Windows environment, but gives broad control the the PowerPoint application.","Q_Score":0,"Tags":"python,duplicates,powerpoint,slide","A_Id":64815183,"CreationDate":"2020-11-12T21:35:00.000","Title":"How to duplicate PowerPoint slide with python pptx?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"So the problem I'm facing is that I cannot figure out how to apply textures to a model in a way that texture would be different on each side. For example I wanted to create Minecraft like grass blocks with bottom being brown, sides - green and brown and top - green. I already searched up this issue and found that it is possible to use UVs but I cannot figure out how. I already tried creating UV map in Blender then exported it and put it both as a texture and model and other combinations however it did not change the model so I let it be built-in 'cube' and changed just texture but it literally just put the UV's .png file on all sides. So any help would be appreciated!","AnswerCount":2,"Available Count":1,"Score":0.0996679946,"is_accepted":false,"ViewCount":1504,"Q_Id":64812291,"Users Score":1,"Answer":"Also, you can use Microsoft's 3D Builder to build models and Paint 3D to paint it. Re-import it to 3D Builder to save as a .obj with a .mtl file and a  .png texture map. It works for Ursina as I've tried.","Q_Score":0,"Tags":"python,python-3.x,game-engine","A_Id":66943392,"CreationDate":"2020-11-12T21:50:00.000","Title":"Ursina engine texture mapping","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Im using python with the selenium package and the chromedriver to scrape a webpage. The page is automatically reloading itself (probably via java-script) every 30 min, which destroyes my scraping-progress.\nThe webscraping is done with a script and the javascript ist needed for further interaction with the page.\nIs it possible to stop the page from reloading itself, maybe with a flag for the chromedriver?","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":1247,"Q_Id":64817185,"Users Score":0,"Answer":"You can just open the DevTools and pause the Debugger. Works in Firefox and Chrome (tested)!","Q_Score":0,"Tags":"python,selenium,selenium-chromedriver","A_Id":64817219,"CreationDate":"2020-11-13T07:45:00.000","Title":"Stop webpage from auto-reload with selenium\/chromedriver","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Im using python with the selenium package and the chromedriver to scrape a webpage. The page is automatically reloading itself (probably via java-script) every 30 min, which destroyes my scraping-progress.\nThe webscraping is done with a script and the javascript ist needed for further interaction with the page.\nIs it possible to stop the page from reloading itself, maybe with a flag for the chromedriver?","AnswerCount":2,"Available Count":2,"Score":1.2,"is_accepted":true,"ViewCount":1247,"Q_Id":64817185,"Users Score":0,"Answer":"Found a Solution myself. I had to execute the following dev-tools command with the webdriver:\ndriver.execute_cdp_cmd('Emulation.setScriptExecutionDisabled', {'value': True})","Q_Score":0,"Tags":"python,selenium,selenium-chromedriver","A_Id":64919208,"CreationDate":"2020-11-13T07:45:00.000","Title":"Stop webpage from auto-reload with selenium\/chromedriver","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to make a script in python that interacts with a webpage that has quite a lot of javascript in it (it's a webpage that computes a bunch of physics stuff).\nI don't want my code to break if the page formatting changes and I want it to run offline so I would prefer my script to run on a local html copy of the page I got (all the JS code is accessible in the HTML source, there is no call to an external server). I wanted to use the requests library to do it, but it only works with URLs. Is there any library to do this? Note that I want to interact with the HTML (input values and look at the outputs etc..), I know that I can parse the file but that's not what I'm asking. I'm also totally new to web bots or anything related.\nRight now I can open my .html version of the page offline with chrome and interact with it, so there has to be a way to automate this somehow. I'm also not against using something else than python if there is a better library for this in another language.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":320,"Q_Id":64841002,"Users Score":0,"Answer":"interesting question, best way I can think to do that is use a web framework and then just scrape the data using requests. I am familiar with flask and its simple to use but im sure there are other options as well","Q_Score":3,"Tags":"python,html,web,web-scraping,python-requests","A_Id":64841338,"CreationDate":"2020-11-15T03:43:00.000","Title":"Interact with local HTML file with python","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am new to python. I have created a Django project and I am running it locally.\nMy python project keeps runs fine until I run a function from my main.py file. The function runs fine but then python crashes:\nAssertion failed: (NSViewIsCurrentlyBuildingLayerTreeForDisplay() != currentlyBuildingLayerTree), function NSViewSetCurrentlyBuildingLayerTreeForDisplay, file \/AppleInternal\/BuildRoot\/Library\/Caches\/com.apple.xbs\/Sources\/AppKit\/AppKit-1894.50.103\/AppKit.subproj\/NSView.m, line 13568.\nHowever I am unsure why this error is appearing. Anyone have experience in this type of error?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":231,"Q_Id":64848826,"Users Score":0,"Answer":"thank you, adding plt.close() to close off my plot stopped this problem.","Q_Score":0,"Tags":"python,django","A_Id":64849621,"CreationDate":"2020-11-15T19:22:00.000","Title":"Assertion failure on django project","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Hello I am trying to click on a button within python selenium that has no ID. The button has the text Submit an application within it. However there are multiple phrases of \"Submit an application\" on the website. The attributes of the website are:\n<a class= \"button\" href = \"(a link)\" analytics-on=\"click\" analytics-category=\"Body\" analytics-event=\"(a link)\" analytics-label=\"Submit an application||(a link)\">","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":94,"Q_Id":64851471,"Users Score":0,"Answer":"you can try with css_selector.\ndriver.find_element_by_css_selector('[analytics-on=\"click\"]').click()\ndriver.find_element_by_css_selector('[analytics-category=\"Body\"]').click()\nor link_text method  is also a good choice in locating an a tag,\ndriver.find_element_by_link_text(\"Submit an application\").click()","Q_Score":0,"Tags":"python,python-3.x,selenium,selenium-webdriver,selenium-chromedriver","A_Id":64852151,"CreationDate":"2020-11-16T01:05:00.000","Title":"clicking on button no ID in Selenium python","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I created a Conda Environment on my Manjaro Linux system.\nAs I develop a Kivy App and run it, it runs fine.\nThen when I go to compile it into an APK to run on my Android Tablet that's when I run into a strange problem.  I can successfully create an APK and install it on my Tablet.\nBut...\nPython-For-Android downloads packages, that I aleady have installed, when building my APK.  Sometimes it downloads versions I'm not using. and Sometimes it can't find a package that I already have installed.\nMy Question is this: How can I override (maybe in my Buildozer Spec file) P4A downloading packages (I guess it's called recipes) and to JUST USE the packages I already have downloaded and installed in my Conda Environment. (this way my compiled APK will be exactly identical to the Kivy App I'm running on my Linux machine.)","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":473,"Q_Id":64881147,"Users Score":0,"Answer":"I run into a strange problem. I can successfully create an APK and install it on my Tablet. But... Python-For-Android downloads packages, that I aleady have installed, when building my APK. Sometimes it downloads versions I'm not using\n\nThis isn't a strange problem, it's just how python-for-android works. It needs to install packages for the android environment, which isn't necessarily possible using what you have locally, and even if it was it's still a simpler way for python-for-android to operate.\n\nMy Question is this: How can I override (maybe in my Buildozer Spec file) P4A downloading packages (I guess it's called recipes) and to JUST USE the packages I already have downloaded and installed in my Conda Environment\n\nYou can't. There are options in the buildozer.spec file to specify the source directory for a given recipe, but this needs to be pointed at the source directory of the project (i.e. for a python module the root directory with a setup.py), not the installed package in another python environment.\nDepending on how conda caches packages, you might be able to point it at what it's pulled, but this won't work for e.g. wheels.\n\nthis way my compiled APK will be exactly identical to the Kivy App I'm running on my Linux machine.\n\nIf this is your goal, you can specify versions for things using requirements=package==version, e.g. requirements=colorama==0.4.4. However, for packages installed using recipes not all versions may be supported, it's normally a good idea to use the defaults. For instance, only certain python3 minor versions are supported.","Q_Score":0,"Tags":"python,kivy,buildozer,p4a,python-for-android","A_Id":64882743,"CreationDate":"2020-11-17T18:27:00.000","Title":"Buildozer and Python-for-Android","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":1,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"New to marketo so forgive me if there's an easy answer here.\nFor my use case, I need to pull all marketo leads from the database as well as all activities. From a daily quota perspective, leads aren't a huge issue but file size on activities is a problem. On first run, I'd need to retrieve all activities and leads from inception of Marketo db but one month of activities can be in excess of the 500mb limit. Is there a better\/more efficient way to pull all the data I need or is the answer here just creating a process that pulls activities in 500mb increments and waits until the quota reset time to go again after exceeding 500mb?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":45,"Q_Id":64883071,"Users Score":0,"Answer":"Short answer: yes, just wait and go through as many days as you need.\nLong answer: depends. You can contact Marketo about increasing the 500MB API export limit if needed\u2014I believe this comes with an additional charge if needed on an ongoing basis, but I'm less clear on temporary increases to get historical data. Additionally, if you already have 500MB' worth of data in a month, the other options I'd recommend, such as specifically targeting activities and writing them on a one-off basis, probably aren't going to make sense.\nYou could also tweak what you're downloading in your bulk export\u2014there's often repeated data that doesn't make sense to capture twice. Two examples I can think of immediately are around score changes (which produce both a unique score activity and a unique data value change activity) and lifecycle model changes (which also both produce a unique stage change activity and a data value change activity). Trimming these down may get you further along faster; in both cases, I'd recommend discarding the data value change.","Q_Score":0,"Tags":"python,marketo","A_Id":65148829,"CreationDate":"2020-11-17T20:47:00.000","Title":"How to efficiently pull all activities from Marketo and deal with 500mb daily quota","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"When I created a class in Odoo I used _name = '...' and _inherit = ['mail.thread', 'mail.activity.mixin', 'ir.attachment'].\nWith it I also created a customized view for my new module Documents. Unfortunately I only have access to the documents with admin rights. If I give a user the following rights,\nonly then he \/ she has access to the documents.\nAdministration: Settings\nWhich rights and where would I have to set in order to give all users the right to read and create documents in my new module with inherited \"ir.attachment\"?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":293,"Q_Id":64891086,"Users Score":0,"Answer":"Its under the Technical Settings, Record Rules. Just search the model that you have problems with.","Q_Score":0,"Tags":"python,odoo","A_Id":64892835,"CreationDate":"2020-11-18T10:18:00.000","Title":"Odoo _inherit = 'ir.attachment' access rights","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a jupyter notebook and use the splitcell extension to have two cells next to each other.\nI now need to share the notebook with non-python colleagues and would like to do that using HTML. When I download the notebook as HTML though, all splitcells are removed and the cells are unrolled and appear after each other.\nIs there a way to keep the split cells next to each other in the final HTML?\nThanks for your help!","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":56,"Q_Id":64897370,"Users Score":1,"Answer":"The splitcell extension does not have an nbtconvert support, that is, it works just in your browser.\nOther exensions in the jupyter_contrib_nbextensions (like toc2) have it; but splitcell does not. Sorry.\nSome javascript extensions (that ejecute javascript that makes the output) work with the --to webpdf but you must install some software packages and it still might not work.","Q_Score":0,"Tags":"python,jupyter-notebook,jupyter","A_Id":64897588,"CreationDate":"2020-11-18T16:37:00.000","Title":"Jupyter Notebooks: How to export a notebook to HTML including the splitcell extension?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have one old certificate and one new certificate in my keystore hence i want to remove the old cert by using the wsadmin script and also import the new one using wsadmin script.\ni have listed the cert using this command -\nCommand to List certs -\nAdminTask.listPersonalCertificate('[-keystorename <test_store> -keystorescope <test_scope>')\ni received complete output and also i want to compare the certs using the validity so that i will remove the old cert only.\nThanks","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":401,"Q_Id":64905811,"Users Score":0,"Answer":"Typically you would use the admin console, with command assistance turned on, to perform the operation you wish to script, then examine the output of command assistance.  Just note, not all admin console operations go through a scriptable path, in that case, you'll need to look at the security mbean operations for examples.","Q_Score":0,"Tags":"python,websphere,jython,websphere-8,wsadmin","A_Id":64917696,"CreationDate":"2020-11-19T05:18:00.000","Title":"How to create script to import and delete personal certificate in websphere application server using wsadmin?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to replace the default Django Admin templates with my own completely custom Django admin. The data in the Dashboard should be populated from the DB. How do I work with templated files? Which files should be overridden ?","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":57,"Q_Id":64906494,"Users Score":1,"Answer":"you can override the django admin template by creating a a new template folder in your base app and inside that folder create another admin folder, and then create a base_site.html and at top {% extends \"admin\/base.html\" %}","Q_Score":0,"Tags":"python,django-admin","A_Id":64945183,"CreationDate":"2020-11-19T06:32:00.000","Title":"How to create a custom Django admin to replace the existing Django admin?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"How can I automate clicking on non-browser interactive interfaces (eg. Exe software) without image recognization? (For example, Microsoft's onenote, or some niche software)\nI want to learn related technologies, but I don't know which direction I should go, I hope someone can give me some guidance.\n(Now I can only use Python's image recognition and click technology for these non-browser software, but this efficiency is very low. I hope that I can skip the image recognition & click directly, and can directly manipulate the underlying data processing like manipulating HTTP request or CSS selenium )","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":52,"Q_Id":64908810,"Users Score":0,"Answer":"Free tools are - Autoit, AutoHotkey, Winium etc\nFree tools cannot recognise most of the windows so might need to consider paid tools.\nPaid options are - Testcomplete, UFT(QTP),  Automation anywhere, UI path, Ranorex, Squish\nMy personal recommendation is Test complete. Because I never found a blocker in windows automation, user friendly and economically viable.","Q_Score":0,"Tags":"python,selenium,automation,exe","A_Id":64915073,"CreationDate":"2020-11-19T09:28:00.000","Title":"How to automate Exe software like automate Chrome in Selenium?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"The python API code,\nclient.get_buy_price(currency_pair = 'XRP-EUR')\ngives me the XRP amount as  only \"0.25\".\nHow can I see more decimal, like 0.25126453?","AnswerCount":2,"Available Count":1,"Score":0.0996679946,"is_accepted":false,"ViewCount":606,"Q_Id":64917923,"Users Score":1,"Answer":"For some reason in the python API, get_buy_price(...) and get_sell_price(...) only give 2 decimals, but if you use get_spot_price(...) you will get more decimals","Q_Score":0,"Tags":"python,decimal,coinbase-api","A_Id":66049444,"CreationDate":"2020-11-19T18:34:00.000","Title":"How can I get more decimal from Coinbase API?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"This happens when I do flask db migrate on my production PostgreSQL database.\nLocally, migrate works fine (also PostgreSQL). I'm not sure what's wrong.\nSome info: f1942fde9843 is not in my migrations\/versions. I'm not sure why it's looking for that. But I assume it must be important.\nWhat do I do?\nI'd rather not delete anything in production if I don't have to","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":1195,"Q_Id":64922993,"Users Score":0,"Answer":"when you do a migration in a different branch than your original, you'll have missing migrations. to fix, you need to change alembic_version.version_num in the database.","Q_Score":0,"Tags":"python,sqlalchemy,alembic","A_Id":64940234,"CreationDate":"2020-11-20T02:38:00.000","Title":"alembic.util.exc.CommandError: Can't locate revision identified by 'f1942fde9843'","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to code a script in Python that will take a time input from the user and then open a web page every day at that time. For example: I run the program and say, \"open [page] at [time]\" ideally it would store this in a document in the directory so the program could be closed when not needed and maintain times. The program would then wait until the specified time and then open a web page that was specified earlier at that time.\nI know this is probably super easy but I fully acknowledge I'm a noob. Thanks for not rubbing it in.\nAny help would be great! Thanks!\n-Meteor","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":49,"Q_Id":64924016,"Users Score":0,"Answer":"Just write a script to open a webpage using python. Then you can schedule it to run at a specific time using crontab.","Q_Score":0,"Tags":"python,time,automation","A_Id":64924048,"CreationDate":"2020-11-20T04:57:00.000","Title":"Python Script that opens a web window at a specific time","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am creating calendar events with Python in a shared Google calendar. Up to a few days ago, everything worked fine, but suddendly I am not seeing the events created through Google Calendar API on mobile devices anymore.\nThe events are still showing up in the web interface and I can access the events through API.\nI assumed that there are syncinc issues between the app and, but whenever I create an event manually in the calendar (web interface), it automatically pops up on the mobile app. The issue occurs with two Android phones.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":246,"Q_Id":64926707,"Users Score":4,"Answer":"If you problem is for allday events, then I just encountered the same problem: via the API I generate allday events, with start date = end date. It was working last fall, and as in your case now they appear on the Web interface, and not on the mobile app.\nI dragged one such event to another date on the Web interface, and then it appeared on the mobile. Then, I examined the event under debugger from my code(php in my case), and I observed that dragging the event to another date resulted in having the end date being start date + 1 day. So I changed my code to generate all day events with end date being start date + 1 day, which fixed the problem: now they appear on both the Web interface and the mobile app.\nI guess something changed on the mobile app during a recent update.","Q_Score":1,"Tags":"python,android,google-calendar-api","A_Id":65671801,"CreationDate":"2020-11-20T09:13:00.000","Title":"Event Created Through API not Visible on Google Calendar App","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"django.db.utils.OperationalError: could not connect to server: Connection refused\nIs the server running on host \"localhost\" (::1) and accepting\nTCP\/IP connections on port 5432?\ncould not connect to server: Connection refused\nIs the server running on host \"localhost\" (127.0.0.1) and accepting\nTCP\/IP connections on port 5432?\ncould not connect to server: Connection refused\nIs the server running on host \"localhost\" (127.0.0.1) and accepting\nTCP\/IP connections on port 5432?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":119,"Q_Id":64927284,"Users Score":0,"Answer":"This error occurs when you have set your DB to some external DB like PostgreSQL, which is not running right now. Please make sure ur DB is running.","Q_Score":0,"Tags":"python,django,pythonanywhere","A_Id":64940400,"CreationDate":"2020-11-20T09:54:00.000","Title":"django.db.utils.OperationalError: while deploying to pythonanywhere","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am new to server sent event please guide me. How can i send data from server to perticular client\/user when change happen in database without reloading page. Also guid me if it is good to use server sent event or i should use websocket for this.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":48,"Q_Id":64942337,"Users Score":0,"Answer":"Yes, Server Sent Events is a good alternative for this problem.\n\nHow can i send data from server to perticular client\/user when change happen in database without reloading page.\n\nThe server need to keep an \"handle\" for all connected clients and it should use these connections to send data when a change in the database happens. This can be implemented in many ways, and you may start with how you can detect a \"change\" in the database.","Q_Score":0,"Tags":"python,django,websocket,server-sent-events","A_Id":64976677,"CreationDate":"2020-11-21T11:05:00.000","Title":"How to send data to perticular user using server sent events on django?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a final for school that requires me to make a Django project. I installed python 3.9 on my Mac fine but when I try to run virtualenv venv, I get this error virtualenv: error: argument dest: the destination . is not write-able at \/Users\/BUS\nI am not sure where else I would be able to write in the virtual env. I'm new to this so I don't really know where to go from here? Any help would be very much appreciated.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":1091,"Q_Id":64956535,"Users Score":0,"Answer":"you can give your project directory write and execute permission by running this command chmod u+x \/YOUR\/PATH\/TO\/PROJECT\/SCRIPT and if it doesn't help try sudo, also i'm no expert but learnt a thing that if you run python in any 'ix' systems to have passwords of root setup as then if you run scripts on your workstation chances are the command chmod with sudo gonna break privileges sooner or later, hope this helps, lmk.","Q_Score":1,"Tags":"python,python-3.x,terminal,virtualenv,python-3.9","A_Id":70230875,"CreationDate":"2020-11-22T16:22:00.000","Title":"Trying to create a virtual environment in python 3.9","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to start with web development with python, django, react,  javascript and when I download node.js at the windows PowerShell it showed me that its downloading python again and now when I want to run a code at PyCharm it is showing me this error:\nError running 'some new sobject': Cannot run program \"C:\\Users####\\AppData\\Local\\Programs\\Python\\Python39\\python.exe\" (in directory \"\"): CreateProcess error=2, The system cannot find the file specified\nor when I'm typing pip at the cmd it is showing me this error:\nFatal error in launcher: Unable to create process using '\"c:\\users????\\appdata\\local\\programs\\python\\python39\\python.exe\"  \"C:\\Users????\\AppData\\Local\\Programs\\Python\\Python39\\Scripts\\pip.exe\" ': The system cannot find the file specified.\nI searched for some answers and nothing works should I redownload python?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":238,"Q_Id":64967390,"Users Score":0,"Answer":"as @Ruli said, it can be due to some special character in the File Name or a Folder, or it can be anything.\nMy suggestion is to move that whole folder that is default created by PyCharm, and move it somewhere like C:\\ , so it is easier to locate the file and run it.\nor if you have any other drive like D:\\ or E:\\ , move it there and try to run the program from the Command Line.","Q_Score":0,"Tags":"python,node.js,pip","A_Id":64968240,"CreationDate":"2020-11-23T11:16:00.000","Title":"error when trying to run a code at pycharm and when typing pip at the cmd","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a Flask-based app that is used as a front (HTTP API only) for an image processing task (face detection along with some clustering). The app is deployed to Kubernetes clusters and, unfortunately during load testing it dies.\nThe problem is that all Flask threads are reserved for request processing and the application can't reply to Kubernetes liveness probe (\/health endpoint) via HTTP - so the whole pod gets restarted.\nHow can I resolve it? I thought about a grep-based liveness problem however it doesn't solve the problem. Another idea is to use celery, however, if Flask doesn't support async-processing I'll need to call wait() on a celery task which gives me exactly to the same place.\nFor now I don't consider returning 202 response along with URL for process monitoring.\nAny other ideas?","AnswerCount":1,"Available Count":1,"Score":0.3799489623,"is_accepted":false,"ViewCount":242,"Q_Id":64967504,"Users Score":2,"Answer":"How did you deploy Gunicorn etc?\nFastAPI might be better suited for your use case, but migration might be prohibitive. It has built in async support which would should help you to scale better. I like tiangolo's docker containers for this.\nHow long does your image recognition take (seconds, milliseconds)?\nIf you must stick to your current design:\n\nincrease timeout, but be aware that your customers have the same problem - they might time out.\nIncrease resources: More pods so that no pod has no resources left.\n\nIf you're using Flask, be aware that the dev server is not meant for production deployment. Although it is multithreaded, it's not particularly performant, stable, or secure. Use a production WSGI server to serve the Flask application, such as Gunicorn, mod_wsgi, or something else.","Q_Score":0,"Tags":"python,flask,kubernetes","A_Id":64967781,"CreationDate":"2020-11-23T11:24:00.000","Title":"Flask thread pool exhausted","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I'm a python developer.we use GCS (Google cloud storage) to store our images for past we months which is good but for android it requires to import all the buckets to Firebase Cloud Storage(FCS) for accessing it. We dont want any manual integration. we heard that if we create a bucket on FCS which automatically reflect on GCS which is good and there is no import required.\nWe trying to create bucket directly on firebase cloud storage. may i know is that posstible by programmtically?","AnswerCount":2,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":625,"Q_Id":64968685,"Users Score":2,"Answer":"You can't create a new bucket if you are using Spark Plan in FCS, but you access the default bucket to do an operation like Upload\/Download.\ndefault bucket will end in terms of (.appspot.com)","Q_Score":3,"Tags":"python,firebase,google-cloud-storage,firebase-storage","A_Id":68118759,"CreationDate":"2020-11-23T12:43:00.000","Title":"How can i create bucket on Firebase Cloud Storage","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"While I'm using Django as my backend and flutter as my front end. I want only the flutter app to access the data from django server. Is there any way to do this thing?\nLike we use allowed host can we do something with that?","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":83,"Q_Id":64970938,"Users Score":1,"Answer":"You can use an authentication method for it. Only allow for the users authenticated from your flutter app to use your backend.","Q_Score":0,"Tags":"python,django,flutter,dart","A_Id":65345072,"CreationDate":"2020-11-23T15:05:00.000","Title":"how to authorize only flutter app in djano server?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm working on a very basic Web Application (built using flask and flask_restful) with unrelated views split into different blueprints.\nDifferent blueprints deal with a different instance of a class.\nNow I want to design a page with status(properties and value) of all the classes these blueprints are dealing with. The page is a kind of a control panel of sorts.\nFor this I want to call all the status routes (defined by me) in different blueprints from a single route(status page route) in a different blueprint. I have been searching for a while on how to make internal calls in Flask \/ Flask_restful, but haven't found anything specifically for this. So....\n\nI would love to find out how to make these internal calls.\nAlso, is there any problem or convention against making internal calls.\nI also thought of making use of the requests calls using Requests module, but that feels more like a hack. Is this the only option I got??? If yes, is there a way I dont have to hard code the url in them like using something close to url_for() in flask??\n\nThanks..  :)","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":108,"Q_Id":65004040,"Users Score":0,"Answer":"I would love to find out how to make these internal calls.\n\n\nAns: use url_for() or Requests module, as u do for any other post or get method.\n\n\nAlso, is there any problem or convention against making internal calls ?\n\n\nAns: I didn't find any even after intensive searching.\n\n\nI also thought of making use of the requests calls using Requests module, but that feels more like a hack. Is this the only option I\ngot??? If yes, is there a way I don't have to hard code the url in\nthem like using something close to url_for() in flask??\n\n\nAns: If you don't wanna use Requests module, url_for() is the simplest and cleanest option there is. Hard coded path is the only option.","Q_Score":0,"Tags":"python,flask,flask-restful","A_Id":68876749,"CreationDate":"2020-11-25T11:44:00.000","Title":"flask \/ flask_restful : calling routes in one blueprint from another route in a different blueprint","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Every time I do a: python manage.py runserver\nAnd I load the site, python gets data and puts this in my database.\nEven when I already filled some info in the database. Enough to get a view of what I am working on.\nNow it is not loading the information I want and instead putting in new information to add to the database so it can work with some data.\nWhat is the reason my data in the database is not being processed?\nAnd how do I stop new data being loaded into the database.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":39,"Q_Id":65011273,"Users Score":0,"Answer":"May be it is happening due to migration file first sometimes when you migrate models into database query language with same number\npython manage.py makemigrations 0001\nThis \"0001\" has to be changed everytime\nTo solve your problem once delete the migrations file and then again migrate all models and then try\nTell if this work","Q_Score":0,"Tags":"python,django,django-templates,django-settings","A_Id":65015259,"CreationDate":"2020-11-25T19:10:00.000","Title":"When doing runserver, keep getting new data loaded in my database","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"There are four such view :\nPasswordResetView sends the mail # - PasswordResetDoneView shows a success message for the above # - PasswordResetConfirmView checks the link the user clicked and # prompts for a new password # - PasswordResetCompleteView shows a success message for the above. I want to use placeholders for them but there doesn't seem to be an option. Overwriting the class seems kinda overkill.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":36,"Q_Id":65018325,"Users Score":0,"Answer":"You can us Javascript to handle that in your front end.\nOR\nYou can call the get_form method and manipulate the password input.\nLIKE:\nform.fields['email'].widget.attrs['placeholder']=\"New placeholder\"","Q_Score":0,"Tags":"python,django,django-views","A_Id":65020604,"CreationDate":"2020-11-26T08:20:00.000","Title":"How do I use placeholders with Class-based password reset views?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I've developed some python standalone apps that now I want to integrate into a web environment in order to make them more user friendly for my workmates, whom aren't used to CLI and the command shell. I've thought in remaking those apps as Django apps, using the Django REST framework, but I'm not sure if that way is the theoretically correct given the REST API meaning. For giving some examples, one of my apps takes some geometries from a geopackage, which is a kind of compact format for transferring geospatial information that could acts as a database for itself, and does some QA processes in order to ensure the geometries and data quality. Another of my apps takes some more geometries from the same geopackage and converts them into shapefiles or CAD files.\nIn brief, my question is that it is theoretically correct to remake those apps as Django apps, using the Django REST framework, or maybe exists another options or framework that are more suitable to what I want to approach.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":44,"Q_Id":65022798,"Users Score":1,"Answer":"From my personal experience, Django is everything you need and more. Best part of Django I feel is the db access. Its flawless when it comes to accessing database in Django. So you have nothing to worry about Django.\nAnother option is Flask. Flask is very simple and handy. Flask is more like a module rather than framework. You can make it in few lines of code. But simplicity comes with some down sides. The database access have no structure of its own.\nBottom line is that pick Django if you need to access database with complex queries. Without the requirement for a database, i would go for Flask.","Q_Score":0,"Tags":"python,django,api,rest,geopackage","A_Id":65023067,"CreationDate":"2020-11-26T13:14:00.000","Title":"Best theorically way to integrate some standalone apps into a web environment?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Is there any way to logout from all devices where I have logged in as admin in Django admin panel?\nThe site has already been deployed to heroku server","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":67,"Q_Id":65026129,"Users Score":0,"Answer":"There is no such option, one idea is to delete that user and recreate super user.\nChange superuser password.","Q_Score":1,"Tags":"python,django,admin","A_Id":65027274,"CreationDate":"2020-11-26T16:43:00.000","Title":"Django admin panel logout functionality","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a python-selenium-bot that takes a screenshot of an image and saves it in an assets folder which my frontend flutter-app then accesses.\nHowever I think there is a better way to do this. Is it possible to not save the picture on the disk but rather in a variable or something like that so that I can send it via my rest api. This would be a lot cleaner and not so error prone.\nIs there any way to save a svg without taking a screenshot of it?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":68,"Q_Id":65043258,"Users Score":0,"Answer":"Update:\nMy solution now is calling driver.get_screenshot_as_bas64 this allows me to save the screenshot as base64 in a variable and then pass that through my API. My Frontend can then decoded that screenshot again.","Q_Score":1,"Tags":"python,api,selenium,flutter,web-scraping","A_Id":65050437,"CreationDate":"2020-11-27T20:01:00.000","Title":"How to save an svg-element using selenium not locally?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am attempting to deploy a webpage to github pages where the index.html file is not in the root directory, but in the templates folder. As a result, I keep getting a 404 error page whenever I try to access the url. how can I upload a webpage where the html file is not in the root of the project?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":257,"Q_Id":65046654,"Users Score":1,"Answer":"GitHub Pages is a fairly limited hosting service, although nice for what it does. Is there a particular reason why you can't simply move index.html to the root directory? I know these things can be a pain, but I believe the parser that GHP uses is pretty strict about this.","Q_Score":2,"Tags":"python,flask,github,github-pages","A_Id":65046739,"CreationDate":"2020-11-28T05:18:00.000","Title":"deploying webpage to github where html file is in templates folder","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Trying to run \"helloworld.py\" in PyCharm 2020.2 which I thought I'd installed via Anaconda\nthis error appears in a few threads but the discussions are always about stuff that's a bit beyond a hello world program. I think it might be something to do with this PYTHONPATH thing but I don't understand where this is set (its not in Windows system environment variables), or who set it, or how to fix it.\n\nC:\\Users\\DrMan\\anaconda3\\python.exe\nC:\/Users\/DrMan\/AppData\/Local\/Programs\/Python\/Python39\/helloworld.py\nPython path configuration:\nPYTHONHOME = (not set)\nPYTHONPATH ='C:\\Users\\DrMan\\AppData\\Local\\Programs\\Python\\Python39'\nprogram name = 'C:\\Users\\DrMan\\anaconda3\\python.exe'\nisolated = 0\nenvironment = 1\nuser site = 1\nimport site = 1\nsys._base_executable = 'C:\\Users\\DrMan\\anaconda3\\python.exe'\nsys.base_prefix = ''\nsys.base_exec_prefix = ''   sys.executable =\n'C:\\Users\\DrMan\\anaconda3\\python.exe'\nsys.prefix = ''\nsys.exec_prefix = ''\nsys.path = [\n'C:\\Users\\DrMan\\AppData\\Local\\Programs\\Python\\Python39',\n'C:\\Users\\DrMan\\anaconda3\\python38.zip',\n'C:\\Users\\DrMan\\anaconda3',   ]\nFatal Python error: init_fs_encoding: failed to get the Python codec of the filesystem\nencoding Python runtime state: core initialized ModuleNotFoundError:\nNo module named 'encodings'\nCurrent thread 0x000098b8 (most recent call first): \nProcess finished with exit code 1","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":2592,"Q_Id":65047781,"Users Score":0,"Answer":"In my case it was my root python 3.9 installation (used by my venv), that imported a file from my pycharm project (because my project was in PYTHONPATH).\nThe easiest way to solve the problem was to rename the file python was trying to import, so python would not find it anymore and fall back to the correct file in (my case) C:\\python39.","Q_Score":2,"Tags":"python-3.x,pycharm","A_Id":68815566,"CreationDate":"2020-11-28T08:30:00.000","Title":"PyCharm: Fatal Python error: init_fs_encoding: failed to get the Python codec of the filesystem encoding","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"Trying to run \"helloworld.py\" in PyCharm 2020.2 which I thought I'd installed via Anaconda\nthis error appears in a few threads but the discussions are always about stuff that's a bit beyond a hello world program. I think it might be something to do with this PYTHONPATH thing but I don't understand where this is set (its not in Windows system environment variables), or who set it, or how to fix it.\n\nC:\\Users\\DrMan\\anaconda3\\python.exe\nC:\/Users\/DrMan\/AppData\/Local\/Programs\/Python\/Python39\/helloworld.py\nPython path configuration:\nPYTHONHOME = (not set)\nPYTHONPATH ='C:\\Users\\DrMan\\AppData\\Local\\Programs\\Python\\Python39'\nprogram name = 'C:\\Users\\DrMan\\anaconda3\\python.exe'\nisolated = 0\nenvironment = 1\nuser site = 1\nimport site = 1\nsys._base_executable = 'C:\\Users\\DrMan\\anaconda3\\python.exe'\nsys.base_prefix = ''\nsys.base_exec_prefix = ''   sys.executable =\n'C:\\Users\\DrMan\\anaconda3\\python.exe'\nsys.prefix = ''\nsys.exec_prefix = ''\nsys.path = [\n'C:\\Users\\DrMan\\AppData\\Local\\Programs\\Python\\Python39',\n'C:\\Users\\DrMan\\anaconda3\\python38.zip',\n'C:\\Users\\DrMan\\anaconda3',   ]\nFatal Python error: init_fs_encoding: failed to get the Python codec of the filesystem\nencoding Python runtime state: core initialized ModuleNotFoundError:\nNo module named 'encodings'\nCurrent thread 0x000098b8 (most recent call first): \nProcess finished with exit code 1","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":2592,"Q_Id":65047781,"Users Score":0,"Answer":"OK I found in the settings where I could change the Python Interpreter which I removed and added a link to the directory where i run IDLE and now it works.\nIf anyone has a good link\/reference to understanding all this I would appreciate it. I am a beginner, so haven't really got into worrying about environments and packages and versions but I would like to \"grok it\" so I don't get into bad habits, like from the ground up how environments, packages and paths and settings are working.","Q_Score":2,"Tags":"python-3.x,pycharm","A_Id":65047837,"CreationDate":"2020-11-28T08:30:00.000","Title":"PyCharm: Fatal Python error: init_fs_encoding: failed to get the Python codec of the filesystem encoding","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"Is it possible to reference the primary key in another field in a Django model?\nFor example, let's say I want to have a field looking like BUG0001 corresponding to the entry with pk=1. What is the best way to achieve this?\nI think it is best to keep the primary key as an integer as it is easier to deal with, and I guess formatting the primary key every time is not very effective.","AnswerCount":2,"Available Count":1,"Score":0.0996679946,"is_accepted":false,"ViewCount":235,"Q_Id":65061789,"Users Score":1,"Answer":"Yes it possible and easy to do. Just do this\nFirst make primary key\nfrom django.db import models class Fruit(models.Model): name = models.CharField(max_length=100,primary_key=True)\nAnd then call it where you want as foreign key\nforeign= models.ForeignKey(Reporter, on_delete=models.CASCADE)","Q_Score":0,"Tags":"python,django","A_Id":65062026,"CreationDate":"2020-11-29T15:28:00.000","Title":"Reuse Primary Key in another Django model field","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am resposible for doing Alexa Skill on my company. We received a new Skill to do. This skill needs to contact the data that is saved on Amazon Redshift and Alexa will get information like \"what was the number of sales on November?\" things like that. It is possible to connect this two services: Alexa Skill and Amazon Redshift?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":32,"Q_Id":65073107,"Users Score":0,"Answer":"Yes and I've done it in the past but there is a catch.  Alexa can run Lambda functions and Lambda can access Redshift.  It is a little more complicated than that but not much.  I had Lambdas that started and stopped a Redshift cluster (plus a few more actions) and had an office Alexa enabled to run these.\nThe catch is the authentication model.  How do you know who is speaking to Alexa?  Anyone that can speak to an authorized Alexa can execute the Lambda functions you have defined for it to run.  Enabling Alexa to have access to anything sensitive is problematic and Redshift often contains sensitive information. We quickly disallowed Alexa from running these and just kept them executable from Slack.","Q_Score":0,"Tags":"python,amazon-web-services,alexa-skills-kit,alexa-skill","A_Id":65078035,"CreationDate":"2020-11-30T11:56:00.000","Title":"It is possible to use Alexa Skill with Amazon Redshift?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to create one time links in Django but I have no idea where to start. The idea is to send a onetime registration link. The payload should contain information such as an email address and company name, so that when the customer clicks the link and registers the company name and email will automatically be send with the post.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":352,"Q_Id":65077208,"Users Score":0,"Answer":"One way to achieve that is to create a link with query parameters in the URL.\nURLtoRegisterTheCompany?email=company@email.com&company=companyName\nThen when the user clicks the link you would open a new page, using Javascript you can then listen to the onload event of the page read both email and company query parameters and send a POST request to your backend. If the POST request succeeds you can tell the user something like your company was successfully registered and it fails and your return for instance a HTTP code 422 \"Entity already exists\", show your company was already registered.","Q_Score":0,"Tags":"python-3.x,django-rest-framework,token,registration","A_Id":65095525,"CreationDate":"2020-11-30T16:18:00.000","Title":"Create one time links in Django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am using the Spotify API (with the Spotipy Wrapper) on a small personal project. This is the call that I am using\nsp.search(q=band,limit=10)\nWhen I use a name like \"Beck\" I also get results from \"Becky G\". Is there a way to limit artists to a particular band or to search for an artist ID by name?\nI tried the artist tag but that wasn't quite working.","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":158,"Q_Id":65101111,"Users Score":0,"Answer":"I've just submitted a very similar question before I found this, I don't have a direct answer I'm afraid but in my case I discovered I was getting false matches on in particular Artists in particular with names of 5 characters or less.\nMy workaround was to do a lookup on the artist, do a string match on the named returned from the Spotipy API using the fuzzywuzzy module. If that didn't give me an exact match, I pulled back ten and again used the fuzzywuzzy module to find the closest string match from all 10.","Q_Score":0,"Tags":"python,spotify,spotipy","A_Id":65264740,"CreationDate":"2020-12-02T01:50:00.000","Title":"Spotipy: Wrong\/Several artist coming up when I use sp.search()","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am using the Spotify API (with the Spotipy Wrapper) on a small personal project. This is the call that I am using\nsp.search(q=band,limit=10)\nWhen I use a name like \"Beck\" I also get results from \"Becky G\". Is there a way to limit artists to a particular band or to search for an artist ID by name?\nI tried the artist tag but that wasn't quite working.","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":158,"Q_Id":65101111,"Users Score":0,"Answer":"You can use type to limit your query. For example, try: sp.search(q='Beck', type='artist', limit=10)","Q_Score":0,"Tags":"python,spotify,spotipy","A_Id":65115509,"CreationDate":"2020-12-02T01:50:00.000","Title":"Spotipy: Wrong\/Several artist coming up when I use sp.search()","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I need user_password plaintext using Django. I tried many ways to get plaintext in user_password. but It's not working. So, I analyzed how the Django user password is generated. it's using the make_password method in the Django core model. In this method generating the hashed code using( pbkdf2_sha256) algorthm. If any possible to decrypt the password.\nExample:\npbkdf2_sha256$150000$O9hNDLwzBc7r$RzJPG76Vki36xEflUPKn37jYI3xRbbf6MTPrWbjFrgQ=","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":2194,"Q_Id":65104609,"Users Score":1,"Answer":"As you have already seen, Django uses hashing method like SHA256 in this case. Hashing mechanisms basically use lossy compression method, so there is no way to decrypt hashed messages as they are irreversible. Because it is not encryption and there is no backward method like decryption. It is safe to store password in the hashed form, as only creator of the password should know the original password and the backend system just compares the hashes.\nThis is normal situation for most backend frameworks. Because this is made for security reasons so far. Passwords are hashed and saved in the database so that even if the malicious user gets access to the database, he can't find usefull information there or it will be really hard to crack the hashes with some huge words dictionary.","Q_Score":0,"Tags":"python,django,django-authentication,sha,pbkdf2","A_Id":65104756,"CreationDate":"2020-12-02T08:33:00.000","Title":"How to decrypt django pbkdf2_sha256 algorthim password?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"It is possible to build a project in Django without models ? I have a views, templates(html), css and urls. That site is looking very good in a browser. It is a hairdressing salon website.\nGreetings","AnswerCount":2,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":815,"Q_Id":65112705,"Users Score":2,"Answer":"It is completely possible to create a Django project without any models. You only really need models if your website contains objects, like posts or users.\nFor one example, I created a recreation of Wikipedia using Django using exactly 0 models; since each entry was just a Markdown file, there was no need for any models.","Q_Score":1,"Tags":"python,html,css,django,model","A_Id":65112776,"CreationDate":"2020-12-02T17:01:00.000","Title":"Django project without models and data base","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm having trouble deploying a FastAPI app on cpanel with Passenger","AnswerCount":2,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":1429,"Q_Id":65114261,"Users Score":2,"Answer":"Applied the python package a2wsgi for resolving the problem but it's not working.","Q_Score":2,"Tags":"python,cpanel,passenger,fastapi","A_Id":65317959,"CreationDate":"2020-12-02T18:47:00.000","Title":"Is there a way to deploy a fastapi app on cpanel?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"So i have created an automation bot to do some stuff for me on the internet .. Using Selenium Python..After long and grooling coding sessions ..days and nights of working on this project i have finally completed it ...Only to be randomly greeted with a Error 1015 \"You are being rate limited\".\nI understand this is to prevent DDOS attacks. But it is a major blow.\nI have contacted the website to resolve the matter but to no avail ..But the third party security software they use says that they the website can grant my ip exclusion of rate limiting.\nSo i was wondering is there any other way to bypass this ..maybe from a coding perspective ...\nI don't think stuff like clearing cookies will resolve anything ..or will it as it is my specific ip address that they are blocking\nNote:\nThe TofC of the website i am running my bot on doesn't say you cant use automation software on it ..but it doesn't say you cant either.\nI don't mind coding some more to prevent random access denials ..that i think last for 24 hours which can be detrimental  as the final stage of this build is to have  my program run daily for long periods of times.\nDo you think i could communicate with the third party security to ask them to ask the website to grant me access ..I have already tried resolving the matter with the website. All they said was that  A. On there side it says i am fine\nB. The problem is most likely on my side  ..\"Maybe some malicious software is trying to access our website\" which .. malicious no but a bot yes. That's what made me think maybe it would be better if i resolved the matter myself.\nDo you think i may have to implement wait times between processes or something. Im stuck.\nThanks for any help. And its a single bot!","AnswerCount":3,"Available Count":1,"Score":0.0665680765,"is_accepted":false,"ViewCount":6688,"Q_Id":65128879,"Users Score":1,"Answer":"I see some possibilities for you here:\n\nIntroduce wait time between requests to the site\nReduce the requests you make\nExtend your bot to detect when it hits the limit and change your ip address (e.g. by restarting you router)\n\nThe last one is the least preferable I would assume and also the most time consuming one.","Q_Score":1,"Tags":"python-3.x,selenium,selenium-webdriver,cloudflare,rate-limiting","A_Id":65128935,"CreationDate":"2020-12-03T15:23:00.000","Title":"How to bypass being rate limited ..HTML Error 1015 using Python","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a problem. I made an application that can detect the heartbeat from the face. Its functioning is correct if I use videocapture (0) (therefore using the webcam of the machine), but the results are wrong if I use any recorded video.\nI guess there are compatibility, codec or compression issues.\nHow could I solve?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":31,"Q_Id":65129328,"Users Score":0,"Answer":"OpenCV will read video files as quickly as possible. that's a feature.\nif you need to display that data at a particular speed, it's your responsibility to throttle the loop. as suggested in the comments, you would do that by giving a suitable (maximum!) delay to waitKey.\nif your VideoCapture object doesn't give a sensible value for CAP_PROP_FPS, see if you can get a sensible value for CAP_PROP_POS_MSEC.","Q_Score":0,"Tags":"python,opencv,camera","A_Id":65143545,"CreationDate":"2020-12-03T15:49:00.000","Title":"Videocapture problem with video and real-time","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am currently working on a project in which I am using a webcam attached to a raspberry pi to then show what the camera is seeing through a website using a client and web server based method through python, However, I need to know how to link the raspberry pi to a website to then output what it sees through the camera while then also outputting it through the python script, but then i don't know where to start\nIf anyone could help me I would really appreciate it.\nMany thanks.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":111,"Q_Id":65141422,"Users Score":0,"Answer":"So one way to do this with python would be to capture the camera image using opencv in a loop and display it to a website hosted on the Pi using a python frontend like flask (or some other frontend). However as others have pointed out, the latency on this would be so bad any processing you wish to do would be nearly impossible.\nIf you wish to do this without python, take a look at mjpg-streamer, that can pull a video feed from an attached camera and display it on a localhost website. The quality is fairly good on localhost. You can then forward this to the web (if needed) using port forwarding or an application like nginx.\nIf you want to split the recorded stream into 2 (to forward one to python and to broadcast another to a website), ffmpeg is your best bet, but the FPS and quality would likely be terrible.","Q_Score":0,"Tags":"python,raspberry-pi","A_Id":65146963,"CreationDate":"2020-12-04T09:56:00.000","Title":"raspberry pi using a webcam to output to a website to view","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am having the script to send outlook email through python libaray win32\/Automagica .\nThe email have successfully send if i run the script in normal way(using IDE)\nwhen i try to run the same script from jenkins ,it throws \"Exception: Could not launch Outlook, do you have Microsoft Office installed on Windows?\"\noutlook = Outlook(account_name=accountName)\nFile \"C:\\Python39\\lib\\site-packages\\automagica\\utilities.py\", line 41, in wrapper\nreturn func(*args, **kwargs)\nFile \"C:\\Python39\\lib\\site-packages\\automagica\\activities.py\", line 4186, in init\nself.app = self._launch()\nFile \"C:\\Python39\\lib\\site-packages\\automagica\\activities.py\", line 4202, in _launch\nraise Exception(\nException: Could not launch Outlook, do you have Microsoft Office installed on Windows?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":96,"Q_Id":65142863,"Users Score":0,"Answer":"Yeah ..Now it is working ..it is because of Jenkins running under Admin rights and Outlook is in User Rights...after i start to run Jenkins on User rights(not Admin)it is able to send email through Outlook","Q_Score":0,"Tags":"python,jenkins,outlook","A_Id":65178555,"CreationDate":"2020-12-04T11:36:00.000","Title":"Cannot able to send email from Jenkins using python script","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Pls I have downloaded postgresql for Windows and I want to connect my models in Django model file to postgresql database but it keep throwing that error\nName : \"django 1\",\nUser: \"postgresql\",\nPassword: \"bless90\",\nHost: \"local host\"","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":28,"Q_Id":65144004,"Users Score":0,"Answer":"The result of those type of error is when u used a wrong word while passing the database config like the Name,User,Host,and password but for my case I used postgresql instead of postgres","Q_Score":0,"Tags":"database,postgresql,django-rest-framework,python-3.9,postgresql-13","A_Id":65234993,"CreationDate":"2020-12-04T12:57:00.000","Title":"Password authentication failed for user \"postgresql\"","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm planning to implement a log retrieval solution from AWS CloudWatch logs using Insights logs query which let the users get the logs for 15 days. The queried data can range any where between KBs to GBs for that time frame.\nIs there any way to retrieve that log data in paginated way using AWS services? Since the response limit is capped for API Gateway and Lambda, it is hard to retrieve the data in paginated fashion.\nAre there any other AWS services that can be used to retrieve the cloudwatch logs data?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":530,"Q_Id":65157214,"Users Score":0,"Answer":"One option is that first you can export Cloudwatch data to S3. You may export data periodically from Cloudwatch or use Lambda subscription to export data to s3.\nOnce data are in s3, you can use Athena to query data using SQL like language.","Q_Score":1,"Tags":"python,amazon-web-services,aws-lambda,amazon-cloudwatch,aws-cloudwatch-log-insights","A_Id":65183647,"CreationDate":"2020-12-05T13:05:00.000","Title":"Log retrieval solution using AWS CloudWatch insights logs","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Hello I am needing assistance. I am currently doing within url.py for Django:\nurlpatterns = [\npath('cookies\/', admin.site.urls),\n]\nThis is being done from urls.py in atom and when I look at the terminal it is not  able to GET the new url. When I have 127.0.0.1\/cookies\/   I am still directed to a not found page. Anyone please  help I am currently using Ubuntu Linux.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":34,"Q_Id":65163474,"Users Score":0,"Answer":"It looks like you are changing an urls.py from your app not from your main project's urls.py.\nYou generated this file byyourself, right?\nIf you want to change your admin path, go to your main projects' urls.py.It is in the same folder as settings.py.\nIf you cannot find it, just search for admin.site.urls in your text editor.","Q_Score":0,"Tags":"python,django","A_Id":65163648,"CreationDate":"2020-12-06T00:32:00.000","Title":"I am having trouble changing the url.py within Django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am testing Python 3.6 on Windows iis 10.0 and get the error 401 from browser when I call a .py file.\n\nI have iis working on ASP pages and HTML\nI have phyton.exe installed and working\nI have added a .py handler in iis\nI have tried to allow anonymous access and set up authorization as IUSR in iis\n( And I allowed IUSR and IIS_IUSR... Full access on application directory)\n\nI looked on Google and tried out many suggetsions!\nBUT No way to esecute the script!","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":173,"Q_Id":65180178,"Users Score":0,"Answer":"You have to add %s %s at the end of the Python Interpreter address.","Q_Score":0,"Tags":"python,iis","A_Id":65427202,"CreationDate":"2020-12-07T10:41:00.000","Title":"How can I eliminate 401 error on IIS when calling Python script?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Can you make mpld3-matplotlib interactive ?\nwhat I mean is display a graph on a web page and be able to update the time series i.e. not simply static graph, but dynamic one page graph-app ?\nWhat can be leveraged from mpld3 ?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":52,"Q_Id":65204165,"Users Score":0,"Answer":"if you don't have to support matplotlib then an option is Bokeh or Dash library instead.","Q_Score":0,"Tags":"python,matplotlib,mpld3","A_Id":65226053,"CreationDate":"2020-12-08T17:50:00.000","Title":"Can you make mpld-matplotlib interactive graph web app?","Data Science and Machine Learning":1,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Good day everybody.  I'm still learning parsing data with Python.  I'm now trying to familiarize myself with Chrome Developer Tools.  My question is when inspecting a directory website like TruePeopleSearch.com, how do I copy or view the variables that holds the data such as Name, Phone, and Address?  I tried browsing the tool, but since I'm new with the Developer tool, I'm so lost with all the data.  I would appreciate if the experts here points me to the right direction.\nThank you all!","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":129,"Q_Id":65206058,"Users Score":0,"Answer":"Upon further navigating the Developer Console, I learned that these strings are located in these variables, by copying the JS paths.\nNAME & AGE\ndocument.querySelector(\"#personDetails > div:nth-child(1)\").innerText\nADDRESS\ndocument.querySelector(\"#personDetails > div:nth-child(4)\").innerText\nPHONE NUMBERS\ndocument.querySelector(\"#personDetails > div:nth-child(6)\").innerText\nSTEP 1\nFrom the website, highlight are that you need to inspect and click \"Inspect Element\"\nSTEP 2\nUnder elements, right-click the highlighted part and copy the JS path\nSTEP 3\nNavigate to console and paste the JS path and add .innerText and press Enter","Q_Score":0,"Tags":"python,json,parsing,uri","A_Id":65207019,"CreationDate":"2020-12-08T20:00:00.000","Title":"Grabbing values (Name, Address, Phone, etc.) from directory websites like TruePeopleSearch.com with Chrome Developer Tool","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am considering working on a project to emulate circuits in order to get more invested in an electronic circuits class that I am currently taking. I have found it useful to create Python scripts to work on my homework calculations, but now I would like to make a website to share with classmates to use these scripts.\nFrom my understanding, I can run only run Javascript on the browser and can only use Python on the backend. I've gotten comfortable with using Python for math and have heard that it's better in general for mathematics. In my assignments, the most that I've worked with is pi and long floating point numbers.\nSo...\nWould it be worth my time to create a python backend to run calculations? Or can I get by with browser `Javascript` for calculations. I am comfortable with both languages.\nAlso as a follow-up question, could I use Flask to run Python in the browser?\nThank you!","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":126,"Q_Id":65228710,"Users Score":3,"Answer":"The only case in which one would definitely be preferable to the other would be if the calculations to be performed may get very expensive, in which case it would be much more user-friendly to have the server shoulder the load, rather than having the client do it (since low-end clients may become unresponsive for too long while calculating).\nIf that's a potential issue for your case, running the expensive code on the backend would be the way to go. (It doesn't have to be Python on the backend - it could even be server-side JS, or even PHP or whatever else you prefer and is performant enough for your needs.)\nIf that isn't something to worry about for your case, then feel free to choose whatever you like (calculate on the client or on the server), using whatever approach you're most comfortable with - there isn't an objective way to choose between them.","Q_Score":0,"Tags":"javascript,python,math","A_Id":65228748,"CreationDate":"2020-12-10T04:56:00.000","Title":"Would it be better to use Javascript or Python for calculations on my website","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Can I actually run a unit test without mark 'load demo data' on my database? If yes, what are the consequences? What are the best practises for unit testing? Can you do testing on your actual database? I'm using odoo12 and now working on unit test2 for python codes. Please help me with this matter","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":341,"Q_Id":65230551,"Users Score":1,"Answer":"Yes you can run test without demo data. If you run odoo with --test-enable then odoo runs test for all installed and updated modules. (-u ...)\nI believe stock test are failing if you don't have demo data installed.\nNever run tests in production database it will leave marks on the database.\nI am running tests in isolation and without demo data. But i am running own tests only.","Q_Score":0,"Tags":"python,unit-testing,odoo,odoo-12","A_Id":65232690,"CreationDate":"2020-12-10T07:58:00.000","Title":"Unit Test without Demo Data in odoo","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm running a FastAPI script on Google App Engine, is there a way to get the CPU & Memory usage for a single request made? I'm trying to calculate how many requests a single instance can take.","AnswerCount":1,"Available Count":1,"Score":0.3799489623,"is_accepted":false,"ViewCount":1162,"Q_Id":65232808,"Users Score":2,"Answer":"No, you can't and that is the wrong thing to measure anyway.\nYou want to run load testing where you have a script that does X requests\/second to your website over a period of time to see what your website can handle.","Q_Score":1,"Tags":"python,google-app-engine,google-cloud-platform,fastapi","A_Id":65236297,"CreationDate":"2020-12-10T10:31:00.000","Title":"How to get CPU & Memory usage for a Python FastAPI script on Google App Engine","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have some interactive graphs made with plotly and would like to embed them on my \"webpage\" that I created using GitHub pages. I tried something like {%include myfig.html%} but it tells me that the file is not found in the _include file. However, I cannot take hands on this file...\nAny simple way to embed a plotly interactive graph on markdown using github pages ? I've looked for it on the net but could not find anything that helps me.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":731,"Q_Id":65238361,"Users Score":0,"Answer":"The answer was actually quite simple : Just use the commande: {% include_relative myfile.html} instead of {% include myfile.html %}","Q_Score":1,"Tags":"python,plotly,markdown","A_Id":65267622,"CreationDate":"2020-12-10T16:21:00.000","Title":"Embed plotly interactive graphs in markdown file (index.md) with GitHub pages, not using Jekyll","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am using Kivy Carousel to build an App.\nHowever I would like to maintain Manual control of the carousel and disable the swipe action (I will manually call carousel.load_next)\nI have looked through the Documentation but cannot see any way to disable the swipe action.\nIf anyone could help me I would appreciate it.\nMany thanks,\nSeotha.","AnswerCount":3,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":246,"Q_Id":65240081,"Users Score":0,"Answer":"Thanks Authur, I will mark as Answer.\nI also discovered I can subclass Carousel and override on_touch_move with nothing.\nclass MyCarousel(Carousel): def on_touch_move(self,touch): pass","Q_Score":1,"Tags":"python,kivy,carousel","A_Id":65241335,"CreationDate":"2020-12-10T18:16:00.000","Title":"Disable Swipe Actions on Kivy Carousel","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":1,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"API Gateway is connected to a lambda function that sleeps for 4 seconds. When I execute the API 20 times in 1 second, the first few calls completes the job in 5 seconds but the other calls take more time eg:12 sec,20 sec, and sometimes runs into timeout errors\n\nAre the APIs dependent on its previous calls (i.e) for the 20th API call to get executed the other previous calls must be completed?\nHow to resolve this problem?","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":338,"Q_Id":65250756,"Users Score":1,"Answer":"Some things to consider when working with AWS API Gateway and AWS Lambda.\nCreating an instance (execution environment) of your Lambda Function takes a while. This is called a cold start. If your Lambda runs in a VPC this might take longer. Shouldn't take less than a couple seconds though.\nOnce that Lamdba runs, API Gateway can reuse this instance. If there isn't traffic for some time the Lamdba goes back to cold storage. The next request through API Gateway will create another instance of the Lambda.\nGiven enough traffic AWS Lambda triggers concurrent executions, which means there will be more Lambda instances. This is called automatic scaling. Again, it takes a cold start. You have no control when, or how many Lambda instances are running. Welcome to serverless.\nAWS Lambda limits its execution time to 15 minutes. Your function cannot exceed this limit. It will be shutdown hard.\nAPI Gateway has an integration timeout of 30 seconds. This means your Lambda needs to finish within 30 seconds. Otherwise API Gateway returns 502 while your function is still running.","Q_Score":0,"Tags":"python,amazon-web-services,amazon-ec2,aws-lambda,aws-api-gateway","A_Id":65254999,"CreationDate":"2020-12-11T11:44:00.000","Title":"Does AWS API gateway calls takes long if executed multiple times in 1 second?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am working on a python project which involves real time communication between a Raspberry Pi device and Cloud server. After receiving data in the cloud server in real time, I have to display the output in a web application in real time as well. What is the correct way to do this ?\nAs web applications use socket.io (web sockets) and communication between Raspberry Pi and cloud can be done through a normal socket, I am confused on whether to proceed with normal socket or web socket.\nAny feedback will be greatly appreciated.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":31,"Q_Id":65255354,"Users Score":0,"Answer":"It all depends on whether you want to work with the TCP stack or the HTTP stack, while TCP sockets have a smaller footprint, HTTP sockets have better support with high level libraries. If you don't need multiple simultaneous connections or high latency requirements, they are both identical, so go with the one that is easier to work with, ie the web socket.","Q_Score":0,"Tags":"python,sockets,websocket,raspberry-pi","A_Id":65257643,"CreationDate":"2020-12-11T16:48:00.000","Title":"What is the correct method to communicate in real time between Raspberry PI and Cloud Server and then display output in web app?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm wondering if it's possible to somehow convert a dash app with a page of graphs and assigned callbacks into a single HTML page to be able to send it around and still got the functionality of the callbacks. So to say convert all python code to javascript which is then embedded into the static HTML page.\nI was searching for this already for quite some time, but couldn't find a solution to this, or maybe it's not even possible.\nAny help is highly appreciated!","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":786,"Q_Id":65256064,"Users Score":1,"Answer":"It is not currently possible to convert a dash page into a static hmtl file because of how the API runs your code in the browser. This is what gives dash the interactive capabilities.\nIf you would like to download a plotly graph into a html file then you'll have to create it using vanilla plotly. This html will still retain the interactive features, like zoom, pan, etc, but you won't have the interaction that is utilized in a dash app.","Q_Score":2,"Tags":"python,plotly,plotly-dash","A_Id":65803402,"CreationDate":"2020-12-11T17:36:00.000","Title":"How to turn a dash plotly hosted webpage into a single static html page?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to get source of a webpage using python requests.get(), but sometimes it retrieves the page source before some elements even load. Is there a way to make the requests.get() wait until certain element appear? The page does not load on javascript and I don't need selenium suggestions.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":121,"Q_Id":65258258,"Users Score":0,"Answer":"When you say \"retrieves page before elements load\" you are implying that some elements are loaded or retrieved via JavaScript. What you get with requests.get() is the initial document and the same thing your browser gets. The difference is that the browser can then read and execute instructions contained in the initial document and fetch more resources, while python can not.\nYou either have to use selenium or go into your browser development tools and see if you can maybe find some endpoints from which the data is getting pulled down.","Q_Score":0,"Tags":"python,python-requests","A_Id":65258350,"CreationDate":"2020-12-11T20:33:00.000","Title":"Make requests.get() wait untill page is fully loaded?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have written integration tests for lambdas that hit the dev site (in AWS). The tests are working fine. Tests are written in a separate project that uses a request object to hit the endpoint to validate the result.\nCurrently, I am running all the tests from my local. Lambdas are deployed using a separate Jenkins job.\nHowever, I need to generate a code coverage report for these tests. I am not sure how I can generate the code coverage report as I am directly hitting the dev URL from my local. I am using Python 3.8.\nAll the lambdas have lambda layers which provide a database connection and some other common business logic.\nThanks in advance.","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":498,"Q_Id":65271425,"Users Score":1,"Answer":"Code coverage is probably not the right metric for integration tests. As far as I can tell you use integration tests to test your requirements\/use cases\/user stories.\nImagine you have an application with a shopping cart feature. A user has 10 items in that shopping cart and now deletes one of those items. Your integration test would make sure that after this operation only (the correct) 9 items are left in the shopping cart.\nFor this kind of testing it is not relevant which\/how much code was run. It is more like a black box test. You want to know that for a given \"action\" the correct \"state\" is created.\nCode coverage is usually something you use with unit tests. For integration tests I think you want to know how many of your requirements\/use cases\/user stories are covered.","Q_Score":1,"Tags":"python-3.x,aws-lambda,integration-testing","A_Id":65274825,"CreationDate":"2020-12-13T00:56:00.000","Title":"Code Coverage Report for AWS Lambda Integration test using Python","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to connect Django project and .NET core project because I want it take advantage of good library available in python so I will make one strong .NET core project.so through some lite on it.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":823,"Q_Id":65273433,"Users Score":1,"Answer":"I am afraid there is no way to run both Django\/Python and .Net\/C# in a same process. But there are at least one other option.\nThe options is using MicroService architecture. That means you create two separate projects, one for .Net and another for Django\/Python. Then make these two projects talk to each other.\nThey can communicate with each other in several ways. Most common way is to communicate via REST. It means each project provide the other side a bunch of APIs. The other side can consume (call) the API to receive or send the required data.\nAnother way to communicate is to use a shared database. Another one is use messaging solutions like RabbitMQ.\nIn MicroService architecture, you can host each one on a convenient web server or, if you enjoy fancy technologies, you can use docker.\nUpdate\nA practical example would be like this:\n\nYour Python side has the functionality of calculating direct distance between point A and B.\nYou create a Django app with a REST API called calc\nIt get A and B as via query string. Just like http:\/\/localhost:5000\/api\/calc?lata=53.123&longa=34.134&latb=53.999&longb=34.999 (consider a and b in query parameters)\nCreate a .Net app wither as web or desktop\nWith the .Net app, call calc api via utilities like HttpClient\nNow, you have the results in your .Net part","Q_Score":2,"Tags":"python,c#,asp.net,django,asp.net-core-webapi","A_Id":65274376,"CreationDate":"2020-12-13T07:43:00.000","Title":"How to connect Django and .net core project as a single application?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm running a few programs (NodeJS and python) in my server (Ubuntu 20.04). I use PM2 CLI to create and manage processes. Now I want to manage all process through an echo system file. But when I run pm2 ecosystem, it just creates a sample file. I want to save my CURRENT PROCESSES to the echo system file and modify it. Anyone know how to save pm2 current process as echo system file?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":388,"Q_Id":65277107,"Users Score":1,"Answer":"If you use pm2 startup pm2 creates a file named ~\/.pm2\/dump.pm2 with all running processes (with too many parameters, as it saves the whole environment in the file)\nEdit:\nThis file is similar to the output of the command pm2 prettylist","Q_Score":0,"Tags":"python,node.js,ubuntu,pm2","A_Id":66128586,"CreationDate":"2020-12-13T15:07:00.000","Title":"Create PM2 Ecosystem File from current processes","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"So I was trying to host a simple python script on Heroku.com, but encountered this error. After a little googling, I found this on the Heroku's website: git, Heroku: pre-receive hook declined, Make sure you are pushing a repo that contains a proper supported app ( Rails, Django etc.) and you are not just pushing some random repo to test it out.\nProblem is I have no idea how these work, and few tutorials I looked up were for more detailed use of those frameworks. What I need to know is how can i use them with a simple 1 file python script. Thanks in advance.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":33,"Q_Id":65280380,"Users Score":0,"Answer":"Okay I got it. It was about some unused modules in requirements.txt, I'm an idiot for not reading the output properly \u200d\u2642\ufe0f","Q_Score":0,"Tags":"python,git,heroku","A_Id":65280586,"CreationDate":"2020-12-13T20:33:00.000","Title":"Git, heroku, pre-receive hook declined","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am using gevent threads in my python flask application, rabbit mq messaging seems to be working fine when i am not monkey patching python thread but rabbit mq client pika stops listening when i do gevent monkey patch. would like to knows about this behaviour.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":143,"Q_Id":65287199,"Users Score":0,"Answer":"The cause of this issue is Pika and gevent.monkey_patch are not compatible when using rabbitmq.You will have to use gevent without patching system calls, if that is possible.\nIn case of if you are using threads with gevent then you might get this issue greenlet.error: cannot switch to a different thread\nThis is because of monkey patching.For this you can try use process instead of threads.","Q_Score":0,"Tags":"python,rabbitmq,monkeypatching,pika","A_Id":65322499,"CreationDate":"2020-12-14T10:16:00.000","Title":"gevent monkey patch stops rabbit mq listting messages","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"SQLAlchemy is logging all queries although I have SQLALCHEMY_ECHO = False (and verified in debug). Further investigation shows that db.engine.echo is True.\nEnv-wise, FLASK_ENV = development, FLASK_DEBUG = True. However changing these settings does not have any impact on the observed behaviour. I.e. I can observe the same with FLASK_ENV = production and FLASK_DEBUG = False.\nRelevant libraries: Flask-SQLAlchemy==2.4.4, SQLAlchemy==1.3.18, GeoAlchemy2==0.7.0\nAnyone got ideas what I can check maybe?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":226,"Q_Id":65287417,"Users Score":0,"Answer":"You should change your debug to False and also forSQLALCHEMY_TRACK_MODIFICATIONS, you need to set it False as well","Q_Score":0,"Tags":"python,sqlalchemy,flask-sqlalchemy","A_Id":68736223,"CreationDate":"2020-12-14T10:33:00.000","Title":"db.engine.echo is true, even though SQLALCHEMY_ECHO is false","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a flask application in the Ubuntu EC2 instance. Locally I can pass the parameters For eg:\n'''http:\/\/0.0.0.0:8888\/createcm?summary=VVV&change=Feauure '''\nwhere summary and change are parameters. How can I pass the same values from outside the EC2 (i.e) using Public DNS or IP address. Any other way to pass the parameters outside the EC2 instance?","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":60,"Q_Id":65288652,"Users Score":1,"Answer":"I dont know how works flask but i wont try help u.\nAt first as flask look like u shoud be able to do same like 'http:\/\/0.0.0.0:8888\/createcm?summary=VVV&change=Feauure ' to outside, but you need open ports on your outside machine, like u should do on ec2 instance(i would do it with UFW firewall)\nOther way its use rabbitmq or AWS S3 to communicate it","Q_Score":0,"Tags":"python-3.x,amazon-web-services,flask,amazon-ec2,amazon-api-gateway","A_Id":65288811,"CreationDate":"2020-12-14T11:57:00.000","Title":"How to pass values to a Flask app in EC2 instance using Public DNS or IP address?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I have made a Scrapy web crawler which can scrape Amazon. It can scrape by searching for items using a list of keywords and scrape the data from the resulting pages.\nHowever, I would like to scrape Amazon for large portion of its product data. I don't have a preferred list of keywords with which to query for items. Rather, I'd like to scrape the website evenly and collect X number of items which is representative of all products listed on Amazon.\nDoes anyone know how scrape a website in this fashion? Thanks.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":68,"Q_Id":65292028,"Users Score":1,"Answer":"I'm putting my comment as an answer so that others looking for a similar solution can find it easier.\nOne way to achieve this is to going through each category (furniture, clothes, technology, automotive, etc.) and collecting a set number of items there. Amazon has side\/top bars with navigation links to different categories, so you can let it run through there.\nThe process would be as follows:\n\nFollow category urls from initial Amazon.com parse\nUse a different parse function for the callback, one that will scrape however many items from that category\nEnsure that data is writing to a file (it will probably be a lot of data)\n\nHowever, such an approach would not be representative in the proportions of each category in the total Amazon products. Try looking for a \"X number of results\" label for each category to compensate for that. Good luck with your project!","Q_Score":0,"Tags":"python,web-scraping,scrapy","A_Id":65314264,"CreationDate":"2020-12-14T15:50:00.000","Title":"How to scrape data from multiple unrelated sections of a website (using Scrapy)","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I will create python api using Django\nnow I trying to verify phone number using firebase authentication  end send SMS to user but I don't know how I will do","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":435,"Q_Id":65322927,"Users Score":1,"Answer":"The phone number authentication in Firebase is only available from it's client-side SDKs, so the code that runs directly in your iOS, Android or Web app. It is not possible to trigger sending of the SMS message from the server.\nSo you can either find another service to send SMS messages, or to put the call to send the SMS message into the client-side code and then trigger that after it calls your Django API.","Q_Score":0,"Tags":"python,django,firebase-authentication","A_Id":65325134,"CreationDate":"2020-12-16T12:06:00.000","Title":"python api verified number usinf firebase","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I know they provide add, update, delete and view. But I want the users' data to not get deleted and disable user so they cannot use website until enabled again.","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":338,"Q_Id":65323790,"Users Score":0,"Answer":"Uncheck the is_active checkbox and save.\nDjango does not log in users whose is_active value is False.","Q_Score":0,"Tags":"python,django,django-rest-framework,django-admin,disable","A_Id":65324317,"CreationDate":"2020-12-16T12:59:00.000","Title":"How to disable users from admin panel and django?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to do a python or matlab project which visualizes audio data while being synchronized with playback.\nIn details, it means in a GUI, I have two main regions, one for data visulization and the other for audio playback. The form of data visulization can be defined specifically, e.g. as waveform or as a STFT-spectrogram. When I hit the button of audio playback, I can not only listen to the music, but also have a real-time cursor in the data visulization area, which is synchronized with the audio playback and indicates the time position of playback. And I would like to point out that I don't want it look like a digital oscilloscope which refreshes the spectrum or waveform for every buffer time. I want the data visualization as showed for the whole time range of audio, only the cursor to dynamically synchronized\/ moved with audio playback.\nSo I want to ask you, do you know any existing project or packages that can realize similar function as I described? Or do you have any recommendation on how I can put the idea into reality from scratch?","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":98,"Q_Id":65325259,"Users Score":1,"Answer":"In principle, it's relatively straightforward. You'd probably want to use:\n\na GUI library such as PyQT\nlibraries for STFT and other maths; SciPy and NumPy are your friends here\nan audio library to read and play back the audio data\n\nAlso you'll need to use threads, since you want to simultaneously play back audio and update your GUI etc. Thus, some understanding of multithreading is useful.\nThough it's unproblematic in a sense, there's a lot of details to get right. If you don't have experience in some or all of these areas, there's a lot you need to learn. Of course, that could be a positive thing.\nThe biggest issue might be the visualization of the audio data. Matplotlib is a popular plotting library, but it's a bit tricky to integrate into a PyQt app, and probably the realtime requirement makes things even harder.","Q_Score":0,"Tags":"python,matlab,audio,fft,visualization","A_Id":65325639,"CreationDate":"2020-12-16T14:31:00.000","Title":"Python or Matlab: synchronized audio playback with data visualization (waveform\/STFT-spectrogram etc.)","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have 2 python files that do Web scraping using Selenium and Beautifulsoup and store the results in separate CSV files say file1.csv and file2.csv. Now, I want to deploy these files on the Azure cloud, I know Azure function apps will be ideal for this. But, I don't know how Functions app will support Selenium driver on it.\nBasically, I want to time trigger my 2 web scraping files and store the results in two separate files file1.csv and file2.csv that will be stored in blob storage on Azure cloud. Can someone help me with this task?\nHow can I use the selenium driver on Azure functions app?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":447,"Q_Id":65352652,"Users Score":2,"Answer":"Deploying on virtual machines or EC2 is the only option that one can use to achieve this task.\nAlso, with Heroku, we will be able to run selenium on the cloud by adding buildpacks. But when it comes to storing the files, we will not be able to store files on heroku as heroku does not persist the files. So, VMs or EC2 instances are the only options for this task.","Q_Score":2,"Tags":"python,azure,selenium-webdriver,web-scraping,beautifulsoup","A_Id":65372990,"CreationDate":"2020-12-18T06:28:00.000","Title":"Deploy Python Web Scraping files on Azure cloud(function apps)","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am using te automated tuning code for classification models in the fasttext library, and I cannot find whether the final model it gives you is trained only on the training set or on both the training and validation set.\nFor example,  when, if you run this command:\n>> .\/fasttext supervised -input cooking.train -output model_cooking -autotune-validation cooking.valid\nDoes it give you a model trained on cooking.train only or on both cooking.train and cooking.valid.\nThanks in advance","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":58,"Q_Id":65361645,"Users Score":1,"Answer":"The model is only trained on the training set. The validation set is only for you to measure the models ability to generalize, i.e. to check whether the model has actually learned the concept you want it to learn rather than just memorizing the training data.","Q_Score":0,"Tags":"python,fasttext","A_Id":65361677,"CreationDate":"2020-12-18T17:47:00.000","Title":"Fasttext automated prameter tuning training set","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have single html page with dynamic images from database in Django.\nI also have a modal in the same page set to invisible and opens when image is clicked.\nMy intension is when I click on any image it should open a html model with the clicked image and its description text from db.\nHow do I display data of the current clicked image and its description.\nI have tried to pass {{profile.image.url}} but this gives one information on click to all images.\nI didn't have to give sample code on this.","AnswerCount":2,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":548,"Q_Id":65374111,"Users Score":2,"Answer":"There are 2 options on how to achieve this:\n\nrender modals for all images with django and open them when user clicks one of the images.\ncreate 1 modal and write some javascript to fetch information about the clicked image in the background. Note, that you'll also need to create an endpoint in  Django that will accept image ID and return image information.","Q_Score":2,"Tags":"python,html,css,django,django-views","A_Id":65374228,"CreationDate":"2020-12-19T20:25:00.000","Title":"load dynamic data in html modal in Django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm trying to use extra_view Django package. I've installed it and in terminal it showed as successful and I added it to installed apps in setting.py. As I don't use virtual environment it's all installed globally, but when I try to import that package there is an unresolved import error. I use VS Code if it means something. It also happened with some other packages that I installed. Do you have any idea what is happening?","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":36,"Q_Id":65375302,"Users Score":0,"Answer":"Everything is ok actually. I just restarted VS Code and then there weren't any errors anymore. Apparently VS Code was the only issue.","Q_Score":0,"Tags":"python,django,django-views","A_Id":65375568,"CreationDate":"2020-12-19T23:00:00.000","Title":"Django error: unresolved import 'extra_views'","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm using the builtin auth app of Django not the django-allauth. Is it possible to limit the allowed special characters in Django's builtin auth app usernames? the default allowed characters are:\nLetters, digits and @\/.\/+\/-\/_\nI want to be:\nLetters, digits and .\/_\nRegards","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":169,"Q_Id":65383465,"Users Score":0,"Answer":"You can define your own authentication backend. That way you can make the rules you want.","Q_Score":0,"Tags":"python,django,django-authentication,django-users","A_Id":65383744,"CreationDate":"2020-12-20T18:39:00.000","Title":"How to limit Django's builtin auth allowed username characters?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have bunch of urls to fetch. I wish to know which one would be better strategy for speed and good User experience.\nStrategy:\n\nUsing Javascript (fetch or XHR). All urls will be fetched on client side.\nSend only one fetch\/XHR (calling python in JS) to python and get all the URL's data in python and send back the response to client.\n\nPlease let me know which one would be better strategy.\nThank you,\nNamratha Patil.","AnswerCount":2,"Available Count":2,"Score":0.0996679946,"is_accepted":false,"ViewCount":46,"Q_Id":65403964,"Users Score":1,"Answer":"You can priorities your data loading on may factors like:\n\nWhether the data is required in first fold to render elements and similar factors. if you go with 2nd strategy if will delay the loading and you will have bad user experience.","Q_Score":1,"Tags":"javascript,python","A_Id":65404063,"CreationDate":"2020-12-22T06:07:00.000","Title":"Wish to Know Better Strategy for Fetching Multiple URLS Javascript + Python","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have bunch of urls to fetch. I wish to know which one would be better strategy for speed and good User experience.\nStrategy:\n\nUsing Javascript (fetch or XHR). All urls will be fetched on client side.\nSend only one fetch\/XHR (calling python in JS) to python and get all the URL's data in python and send back the response to client.\n\nPlease let me know which one would be better strategy.\nThank you,\nNamratha Patil.","AnswerCount":2,"Available Count":2,"Score":1.2,"is_accepted":true,"ViewCount":46,"Q_Id":65403964,"Users Score":1,"Answer":"The network requests are computationally expensive, so batching and sending only one request is almost always preferable.","Q_Score":1,"Tags":"javascript,python","A_Id":65403974,"CreationDate":"2020-12-22T06:07:00.000","Title":"Wish to Know Better Strategy for Fetching Multiple URLS Javascript + Python","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have made a django admin superuser previously for a project  and now for another project i created another admin site super user but when i register models on admin site it gets registered  on both admin sites( i.e prev one and in new one)","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":53,"Q_Id":65408468,"Users Score":0,"Answer":"You will need to create a Proxy model for you current model and register this Proxy model for your new admin panel.","Q_Score":0,"Tags":"python,django","A_Id":65408932,"CreationDate":"2020-12-22T12:08:00.000","Title":"Registring models on django admin site","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Is it okay to use python pandas to manipulate tabular data within a flask\/django web application?\nMy web app receives blocks of data which we visualise in chart form on the web. We then provide the user some data manipulation operations like, sorting the the data, deleting a given column. We have our own custom code to perform these data operations which it would be much easier to do it using pandas however I'm not sure if that is a good idea or not?","AnswerCount":2,"Available Count":2,"Score":0.1973753202,"is_accepted":false,"ViewCount":259,"Q_Id":65412596,"Users Score":2,"Answer":"Actually yes, but don't forget to move your computation into a separate process if it takes too long.","Q_Score":0,"Tags":"python,pandas,flask","A_Id":65412933,"CreationDate":"2020-12-22T16:47:00.000","Title":"Using pandas within web applications - good or bad?","Data Science and Machine Learning":1,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Is it okay to use python pandas to manipulate tabular data within a flask\/django web application?\nMy web app receives blocks of data which we visualise in chart form on the web. We then provide the user some data manipulation operations like, sorting the the data, deleting a given column. We have our own custom code to perform these data operations which it would be much easier to do it using pandas however I'm not sure if that is a good idea or not?","AnswerCount":2,"Available Count":2,"Score":0.1973753202,"is_accepted":false,"ViewCount":259,"Q_Id":65412596,"Users Score":2,"Answer":"It\u2019s a good question, pandas could be use in development environment if dataset isn\u2019t too big , if dataset is really big I think you could use spark dataframes or rdd, if data increase in function of time you can think on streaming data with pyspark.","Q_Score":0,"Tags":"python,pandas,flask","A_Id":65412799,"CreationDate":"2020-12-22T16:47:00.000","Title":"Using pandas within web applications - good or bad?","Data Science and Machine Learning":1,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am a new programmer and I saw that Google is written in python. I know that HTML, CSS, and JS are used to make websites, so how is python \"linked\" to this. This is probably a very basic question but I am new to all this.","AnswerCount":5,"Available Count":3,"Score":0.0798297691,"is_accepted":false,"ViewCount":152,"Q_Id":65417854,"Users Score":2,"Answer":"So your code in browser is called front-end (FE). Sometimes it's all you need. However, sometimes you need to store some data on the server and\/or retrieve it from there. That is where back-end (BE) comes into play.\nBE is basically an app on some computer (maybe a server, maybe a Raspberry Pi, anything really) that listens to requests from the network. Let's say your code needs some data from the server. Your code on the front end makes an AJAX request to the network address of this server on some specific port. The BE, which may be written in Python, or any other language, receives the request and does something with it.\nIt can fetch data from the DB or anything really. Then it send a response to your FE back, sending some data, or confirmation that everything was done successfully, or an error if something went wrong.","Q_Score":5,"Tags":"javascript,html,python-3.x,web,backend","A_Id":65417906,"CreationDate":"2020-12-23T01:10:00.000","Title":"I am curious as to how python is connected to websites","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am a new programmer and I saw that Google is written in python. I know that HTML, CSS, and JS are used to make websites, so how is python \"linked\" to this. This is probably a very basic question but I am new to all this.","AnswerCount":5,"Available Count":3,"Score":0.0399786803,"is_accepted":false,"ViewCount":152,"Q_Id":65417854,"Users Score":1,"Answer":"Python is used for backend development. Backend is the part of your website that runs on your server, not browser. Backend is used for authentication and communicating with database and many more. There are some popular frameworks in python like django and flask.","Q_Score":5,"Tags":"javascript,html,python-3.x,web,backend","A_Id":65417943,"CreationDate":"2020-12-23T01:10:00.000","Title":"I am curious as to how python is connected to websites","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am a new programmer and I saw that Google is written in python. I know that HTML, CSS, and JS are used to make websites, so how is python \"linked\" to this. This is probably a very basic question but I am new to all this.","AnswerCount":5,"Available Count":3,"Score":0.0,"is_accepted":false,"ViewCount":152,"Q_Id":65417854,"Users Score":0,"Answer":"Google in front of you is called front end which is written in HTML, CSS, and JS and usually interpreted by browsers. In the end, HTML, CSS, and JS are all codes, thus, string (or binary).\nPython is used to generate those strings, the codes, in back end.","Q_Score":5,"Tags":"javascript,html,python-3.x,web,backend","A_Id":65417986,"CreationDate":"2020-12-23T01:10:00.000","Title":"I am curious as to how python is connected to websites","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Django version 3.0.3\nI'm trying to use Django's built-in user authentication system, specifically its login form and view.\nWhere is form = LoginForm() or form = AuthenticationForm() line located?\nI can't find it in LoginView and AuthenticationForm definition. And I have no other ideas as to where to look into.\nI'm just curious about how Django determines the context behind the hood.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":116,"Q_Id":65419725,"Users Score":0,"Answer":"you need to import build-in Authentication form\nfrom django.contrib.auth.forms import AuthenticationForm\n\nYou need to make an object for Authentication form and just pass it to render function.\nreturn render(request, 'user\/login.html', {'form': form, 'title': 'Sign In'})\n\n\nNote: \nwithout sending form instance to render function the login form won't be displayed\nSimilar for RegistrationForm also.","Q_Score":3,"Tags":"python,django","A_Id":65419804,"CreationDate":"2020-12-23T06:02:00.000","Title":"Django - where does the system determine \"form\" is Authentication Form?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm currently developing a Django app that allows students to programmatically develop SVG graphics. They can code Python in their browser with ACE editor. The code is executed on the server, stored in a database and the generated SVG (custom library) returned and displayed. An example code that displays a filled ellipse looks like so:\ngraph.draw(Circle(cx=0, cy=0, r=20, fill=\"lime\").scale(2, 1)\nNow I'm wondering, how I could extend this app to do some 3D. I stumbled over X3Dom, which seems promising and not too hard to generate and I could write another lightweight pythonic library for this. But, it doesn't seem to do CSG (constructive solid geometry) which is major drawback.\nAny hints in what direction I should investigate for some 3D web technology that allows easy 3D scene generation with server-side python and that implements CSG?\nNB: OpenJSCad is simalar to what I'd like to achieve, except that my solution allows for classroom collaboration and it must expose Python to students as the programming language. The aim is to spice up the teaching of Python programming with graphics.","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":232,"Q_Id":65426061,"Users Score":0,"Answer":"I believe I used three.js to do CSG a while back.   There used to be an example online.   You are right that X3D does not do CSG.   I was doing cross sections of the earth and found a way with X3D.  You might be able to use VPython or brython in the browser if your worried about Python not running in the browser.  I\u2019ve only brython for a short time testing another person\u2019s project and vpython not at all.\nIf you\u2019re doing something like inverseCSG or CSGNet, is your class available online?\nIn other words, maybe try to find a Python library that does CSG instead searching for a rendering engine in JS.   Don\u2019t view the browser as limited to JS.\nI only found three.js when I was looking.\nMaybe search for a solution which is not a solid solution.","Q_Score":0,"Tags":"python,3d,x3d","A_Id":67595240,"CreationDate":"2020-12-23T14:38:00.000","Title":"Python web app for programmatic 3D scene construction","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm currently developing a Django app that allows students to programmatically develop SVG graphics. They can code Python in their browser with ACE editor. The code is executed on the server, stored in a database and the generated SVG (custom library) returned and displayed. An example code that displays a filled ellipse looks like so:\ngraph.draw(Circle(cx=0, cy=0, r=20, fill=\"lime\").scale(2, 1)\nNow I'm wondering, how I could extend this app to do some 3D. I stumbled over X3Dom, which seems promising and not too hard to generate and I could write another lightweight pythonic library for this. But, it doesn't seem to do CSG (constructive solid geometry) which is major drawback.\nAny hints in what direction I should investigate for some 3D web technology that allows easy 3D scene generation with server-side python and that implements CSG?\nNB: OpenJSCad is simalar to what I'd like to achieve, except that my solution allows for classroom collaboration and it must expose Python to students as the programming language. The aim is to spice up the teaching of Python programming with graphics.","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":232,"Q_Id":65426061,"Users Score":0,"Answer":"try checking out the library \"trimesh\" for python which relays mainly on watertight stl files, but allows you to do some boolean operations for CSG. You can substract one file from the other, extended and find the intersection. Plus, it has some primitive functions directly like cylinders and spheres.","Q_Score":0,"Tags":"python,3d,x3d","A_Id":67607317,"CreationDate":"2020-12-23T14:38:00.000","Title":"Python web app for programmatic 3D scene construction","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have an ModelAdmin with a set of fields in list_display.\nI want the user to be able to click a checkbox in order to add or remove these fields.\nIs there a straightforward way of doing this?  I've looked into Widgets but I'm not sure how they would change the list_display of a ModelAdmin","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":71,"Q_Id":65431971,"Users Score":0,"Answer":"To do this I had to\n\nOverride an admin template (and change TEMPLATES in settings.py).  I added a form with checkboxes so user can set field\nAdd a new model and endpoint to update it (the model stores the fields to be displayed, the user submits a set of fields in the new admin template)\nUpdate admin.py, overriding get_list_display so it sets fields based on the state of the model object updated","Q_Score":0,"Tags":"python,django","A_Id":65443640,"CreationDate":"2020-12-23T23:02:00.000","Title":"How can I let the user of an Django Admin Page control which list_display fields are visible?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Let's say we have an established websocket connection between our server and a remote server and the remote server from time to time sends some data to us.\nSo does our websocket connection spend outbound data traffic when receiving data?\nMy guess is it does not, because the receiving data gets accumulated in the memory. So when you do a .recv(), the websocket just pulls out the data from the memory locally and sends nothing to the other server. Is this correct?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":135,"Q_Id":65432174,"Users Score":1,"Answer":"At the level of the web socket protocol it is likely that recipient server sends a ping message to the originating client every couple of minutes, which responds with a pong.\nSo, the few-tens-of-bytes pong message flows back every once in a while.\nAt the TCP \/ IP level, the receiver server responds to every second incoming data packet with an ACK packet, comprising 30 bytes.  Incoming data packets can carry up to 1460 bytes of payload data plus the 30 bytes.\nSo, there's a minimal amount of reverse data transmission, but it's not zero.\nIf you must have zero reverse transmission you need to use a datagram protocol. But datagram protocols are lossy: there's no way to recover a lost datagram.","Q_Score":1,"Tags":"python,websocket,protocols,packet","A_Id":65432341,"CreationDate":"2020-12-23T23:29:00.000","Title":"Does a websocket spend outbound data traffic when receiving data?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to run a Python-Flask project. I have all the requirements installed. But still, whenever I try to run the server I get an error saying\nsqlalchemy.exc.ArgumentError: Can't load plugin: sqlalchemy.dialects:driver\nCan anyone please tell me what can be wrong here and which file I need to examine?\nThanks.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":132,"Q_Id":65440246,"Users Score":0,"Answer":"I had similar issue on Heroku using Heroku Postgres plug-in.\nAfter two days headache the bellow solutions works me.\nDATABASE_URL = os.environ.get(\"DATABASE_URL\").replace(\"postgres\", \"postgresql\")","Q_Score":0,"Tags":"python,sqlalchemy","A_Id":66767105,"CreationDate":"2020-12-24T15:25:00.000","Title":"sqlalchemy.exc.ArgumentError: Can't load plugin: sqlalchemy.dialects:None","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am going to develop django rest framework apis using postgres legacy database in which apart from the existing tables no other default django tables should be created. I would like to know without creating any django default tables or doing migrations,\n\ncan i able to access records from tables using ORM?\nCan i able to access admin page without creating django auth table (i.e superuser)?\nIf no for both questions, only way to connect to db is using any db adapter like psycopg2?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":185,"Q_Id":65445547,"Users Score":0,"Answer":"can i able to access records from tables using ORM?\n\nIf the schema is same in your models and DB tables, then yes.\n\nCan i able to access admin page without creating django auth table\n(i.e superuser)?\n\nAs far as I can tell, no, you can't get that, unless your existing 'tables' already have that, and you have all the necessary credentials.\nFor question in #3, I'd use something less constraining like Flask if you have these problems.","Q_Score":0,"Tags":"python,django,orm,legacy-database","A_Id":65445614,"CreationDate":"2020-12-25T05:30:00.000","Title":"django rest framework apis using legacy db without creating django default tables","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am making a website. And I want to know how to connect React js to my Flask back end. I have tried searching online but unfortunately it was not what I am looking for. If you know how to do it please recomend me some resources. And I also want to know the logic of how Flask and React work together.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":1048,"Q_Id":65448624,"Users Score":2,"Answer":"Flask is a backend micro-service and react is a front-end framework. Flask communicates with the database and makes the desired API hit points. The backend listens for any API request and sends the corresponding response as a JSON format. So using React you can make HTTP requests to the backend.\nFor testing purposes have the backend and frontend separated and communicate only using the REST APIs. For production, use the compiled js of React as static files and render only the index.html of the compiled react from the backend.\nP.S: I personally recommend Django rest framework over flask if you are planning to do huge project.","Q_Score":0,"Tags":"python,reactjs,flask","A_Id":65448798,"CreationDate":"2020-12-25T13:44:00.000","Title":"How to connect a Python Flask backend to a React front end ? How does it work together?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm creating django application for online Barber Shop booking. I came out with an algorithm that store avaliable hours. Here is exaple how it works. Let's say that barber_1 works form 8am to 4pm. We store this date in list with tuple [(8, 16)] if someone book an 1 hour apointment for 1pm it checks if it is between tuple and if it is, it creates 2 different tuples with updated hours [(8, 13), (14, 16)], if another apointment is booked for let's say 10am, than it deletes first tuple and creates two new on it's place [(8, 10), (11, 13), (14, 16)] and so on and so on.\nI have a problem with \"translating\" my python code to the Django model. Can't find a way to store list of tuples in accesable way to be able to edit it. I read on different post that list of tuples can be stored in many to one relation but I dont think that it will be good in my case.","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":194,"Q_Id":65450949,"Users Score":0,"Answer":"You can do a many-to-one relation between a barber table and an appointments table. The appointments would each have a barber id foreign key, a start time, and an end time column.\n\n\n\n\nappointment_id\nbarber_id\nstart\nend\n\n\n\n\n1\n1\n8\n10\n\n\n2\n1\n11\n13\n\n\n3\n1\n14\n16\n\n\n\n\nYou'd probably want to keep an index on the barber_id.","Q_Score":0,"Tags":"python,django,list,tuples","A_Id":65451052,"CreationDate":"2020-12-25T19:03:00.000","Title":"Store list of tuples django model in easy to access way","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm creating django application for online Barber Shop booking. I came out with an algorithm that store avaliable hours. Here is exaple how it works. Let's say that barber_1 works form 8am to 4pm. We store this date in list with tuple [(8, 16)] if someone book an 1 hour apointment for 1pm it checks if it is between tuple and if it is, it creates 2 different tuples with updated hours [(8, 13), (14, 16)], if another apointment is booked for let's say 10am, than it deletes first tuple and creates two new on it's place [(8, 10), (11, 13), (14, 16)] and so on and so on.\nI have a problem with \"translating\" my python code to the Django model. Can't find a way to store list of tuples in accesable way to be able to edit it. I read on different post that list of tuples can be stored in many to one relation but I dont think that it will be good in my case.","AnswerCount":2,"Available Count":2,"Score":0.0996679946,"is_accepted":false,"ViewCount":194,"Q_Id":65450949,"Users Score":1,"Answer":"Use JSONField but it is actually a textfield, I personally would convert the list into json format then store it as text in your model","Q_Score":0,"Tags":"python,django,list,tuples","A_Id":65451023,"CreationDate":"2020-12-25T19:03:00.000","Title":"Store list of tuples django model in easy to access way","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm new to Django and databases.\nDjango used the sqlite database as it's default database. Is it possible to store images in the sqlite database and display it on my webpage?\nI can't find any documentation on the official Django website for it.","AnswerCount":3,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":2017,"Q_Id":65466375,"Users Score":0,"Answer":"Generally speaking SQLite is not a great database for any serious project. You would normally use something like MongoDB or Postgres or MySQL. I think Django works quite well with PostgreSQL. SQLite is great for practice and testing or small project but once you have to scale up, you can get in trouble.\nAlso, like Willem said, storing images in a DB is not a good idea. Normally instances stored in a DB would have a path towards an image file stored in your computer or a key to an image stored on an image storing service like Cloudinary.","Q_Score":0,"Tags":"python,django,sqlite,django-models,django-views","A_Id":65466454,"CreationDate":"2020-12-27T13:42:00.000","Title":"Storing images in sqlite - Django","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am using Pelican to create a static site. What I want to achieve is to create a new .html file, let's say \"contactus.html\" in \"templates\" directory and parse it's output in \"content\" directory.\nThank you very much in advance.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":52,"Q_Id":65468668,"Users Score":0,"Answer":"What I did @Alex N was to create a .md file in the content\/pages directory and added attributes \"save_us:contact.html\" and \"template:contactus\". What it does in fact is to generate a contact.html file in content root page and get the info from the \"contactus.html\" placed in my template directory.\nFor any further questions please let me know.","Q_Score":0,"Tags":"python,html,pelican","A_Id":65644132,"CreationDate":"2020-12-27T17:48:00.000","Title":"How is it possible to add a .html file in templates directory and parse .html file in output in Pelican?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"When I try to execute py manage.py runserver I had the following message:\n\nraise ImportError(\n\nImport Error: Couldn't import Django. Are you sure it's installed and available on your PYTHONPATH environment variable? Did you forget to activate a virtual environment?\n\n)","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":1523,"Q_Id":65479892,"Users Score":0,"Answer":"Try to make it in a virtual environment, it will work:\n\nFirst, in cmd type pip install virtualenvwrapper\nMake a folder in c drive which will consist all of your django projects like C:\/Django\nThen go to cmd and type mkvirtualenv [name you want to give] and then close the cmd\nOpen it again and then navigate to the folder C:\/Django then when on that folder type workon [the name which you gave]\nFinally, install django by the pip command and then runserver","Q_Score":1,"Tags":"python,django,wsgi","A_Id":67041782,"CreationDate":"2020-12-28T15:21:00.000","Title":"Couldn't import Django. Are you sure it's installed and available on your PYTHONPATH environment variable? --> WSGI.PY file","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I passed a integer variable as a context when i rendered a webpage. That variable is the initial number of untagged images that i have uploaded to my web application.\nI then display my images in a table with the first column being the image and second column being the tag name and the third containing a button which leads to a modal that allows me to edit the tags for the images.\nHow am i able to decrease the count of untagged images counter whenever i fill in an empty tag?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":57,"Q_Id":65481760,"Users Score":0,"Answer":"If you are keeping track of the tag variable as well, then you can check if it is an empty string, if it is then it's untagged, if it is not then you can decrease the counter. You can loop through the list of tags to check all of them.","Q_Score":0,"Tags":"javascript,python,html,jquery,django","A_Id":65481844,"CreationDate":"2020-12-28T17:44:00.000","Title":"Decrease counter based on html element","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am not able to run my local server through atom terminal, even though all the requirements are meant. This is the error i get when I run python manage.py runserver,\nFile \"manage.py\", line 17\n) from exc\n^\nSyntaxError: invalid syntax\nI tried python3 manage.py runserver as suggested by some people online as a solution for mac users but it gave a different error,\nImportError: Couldn't import Django. Are you sure it's installed and available on your PYTHONPATH environment variable? Did you forge\nt to activate a virtual environment?\nSharing the screenshot of my atom terminal.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":241,"Q_Id":65492797,"Users Score":0,"Answer":"Make sure you also installed django for python3.\nBy doing pip -V you can verify that your pip belongs to the python installation you expected.\nYou might need to use pip3 if you're running python 2 and 3 in parallel. Alternatively, you can use python3 -m pip install Django to make sure it's for python 3","Q_Score":0,"Tags":"python,django","A_Id":65492865,"CreationDate":"2020-12-29T13:20:00.000","Title":"Unable to run python manage.py runserver command even though django is installed","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I am trying to use a LabJack product U3 using Python and I am using PyCharm for development of my code. I am new to both Python and PyCharm FYI.  In the LabJack documentation they say to run python setup.py install in the directory I down loaded there Python links for using there device. I did this and when run under straight Python console can get the import u3 to run and am able to access the U3 device.  Yet when I run this in PyCharm I can not get it to run.  It always tells me module not found.  I have asked LabJack for help but they do not know PyCharm.  I have looked on the net but I can seem to see how to get the module properly under PyCharm.  Could i please get some help on how to do this properly?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":36,"Q_Id":65511138,"Users Score":0,"Answer":"First Yll download that module inside of pycharm settings if it's still not working then import module in terminal of pycharm then try to run you're python script","Q_Score":0,"Tags":"python","A_Id":65511317,"CreationDate":"2020-12-30T17:33:00.000","Title":"Unable to get LabJack U3 model loaded into PyCharm properly","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have more than 210000 links which I want to scrape. Is there any way we can print how many links it has completed scraping during the execution and sleep or pause execution for 10 mins after every 10000 page count?","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":170,"Q_Id":65519951,"Users Score":0,"Answer":"great response! I was thinking of using the sleep inside an if statement, for example.\nif parsed_pages == 100*x\ntime.sleep(rand(20,150)\nelse:","Q_Score":1,"Tags":"python-3.x,scrapy","A_Id":65531000,"CreationDate":"2020-12-31T10:55:00.000","Title":"Count scraped items from scrapy during execution and pause or sleep after a certain number of pages","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Eg i have a chat application,\nhowever, i realised that  for my application, as long as you have the link to the chat, you can enter. how do I prevent that, and make it such that only members of the group chat can access the chat. Something like password protected the url to the chat, or perhaps something like whatsapp. Does anyone have any suggestion and reference material as to how I should build this and implement the function? Thank you!","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":377,"Q_Id":65527007,"Users Score":1,"Answer":"I am in the exact same condition as you.What I am thinking of doing\nis\nStore group_url and the respective user_ids (which we get from django's authentication) in a table(with two columns group_url and allowed_user_ids) or in Redis.\nThen when a client connects to a channel,say chat\/1234 (where 1234 is the group_url),we get the id of that user using self.scope['user'].id and check them in the table.\nIf the user_id  is in the respected group_url,we accept the connection.Else reject the connection. I am new to this too.Suggest me if you find a better approach","Q_Score":0,"Tags":"python,django,websocket,django-channels","A_Id":65527131,"CreationDate":"2021-01-01T02:54:00.000","Title":"Django: Channels and Web Socket, how to make group chats exclusive","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to run a simple python script using the beautifulsoup4 module.\nHowever, when I run the .py file, I get a ModuleNotFoundError.\nWhen I try to pip3 install beautifulsoup4 I get Requirement already satisfied.\nI've tried:\n\nuninstalling and reinstalling [with and without sudo];\neasy_install beautifulsoup4;\nchecking the paths with which python3; and\nall of the above in python2.7\n\nIs there a simple fix for this?","AnswerCount":2,"Available Count":1,"Score":-0.0996679946,"is_accepted":false,"ViewCount":82,"Q_Id":65528636,"Users Score":-1,"Answer":"Since you used pip3 install module run your script with python3 script.py","Q_Score":0,"Tags":"python,python-3.x,python-2.7","A_Id":65528659,"CreationDate":"2021-01-01T09:39:00.000","Title":"Python module issue - \"ModuleNotFoundError\" and \"Requirement already satisfied\"","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"How would I error check if there is a previous page for the chromium browser to go to? I have a button which freezes out if the chromium instance has just been launched and there is not a previous page to go to using the command page.goback()","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":85,"Q_Id":65540674,"Users Score":0,"Answer":"This is a bug and is not intended behavior. You should consider reporting it as an issue on the GitHub repo.","Q_Score":1,"Tags":"python,error-handling,chromium,pyppeteer","A_Id":65589496,"CreationDate":"2021-01-02T15:15:00.000","Title":"How to error check pyppeteer page.goBack()","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Is there a way to add expiry date to a Huey Dynamic periodic task ?\nJust like there is an option in celery task - \"some_celery_task.apply_async(args=('foo',), expires=expiry_date)\"\nto add expiry date while creating the task.\nI want to add the expiry date while creating the Huey Dynamic periodic task. I used \"revoke\" , it worked as it supposed to , but I want to stop the task completely after the expiry date not revoking it . When the Huey dynamic periodic task is revoked - message is displayed on the Huey terminal that the huey function is revoked (whenever crontab condition becomes true).\n(I am using Huey in django)\n(Extra)\nWhat I did to meet the need of this expiry date -\nI created the function which return Days - Months pairs for crontab :\nFor eg.\nstart date = 2021-1-20 , end date = 2021-6-14\nthen the function will return - Days_Month :[['20-31',1], ['*','2-5'], ['1-14','6']]\nThen I call the Huey Dynamic periodic task (three times in this case).\n(the Days_Month function will return Day-Months as per requirement - Daily, Weekly, Monthly or repeating after n days)\nIs there a better way to do this?\nThank you for the help.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":247,"Q_Id":65546519,"Users Score":0,"Answer":"The best solution will depend on how often you need this functionality of having periodic tasks with a specific end date but the ideal approach is probably involving your database.\nI would create a database model (let's call it Job) with fields for your end_date, a next_execution_date and a field that indicates the interval between repetitions (like x days).\nYou would then create a periodic task with huey that runs every day (or even every hour\/minute if you need finer grain of control). Every time this periodic task runs you would then go over all your Job instances and check whether their next_execution_date is in the past. If so, launch a new huey task that actually executes the functionality you need to have periodically executed per Job instance. On success, you calculate the new next_execution_date using the interval.\nSo whenever you want a new Job with a new end_date, you can just create this in the django admin (or make an interface for it) and you would set the next_execution_date as the first date where you want it to execute.\nYour final solution would thus have the Job model and two huey decorated functions. One for the periodic task that merely checks whether Job instances need to be executed and updates their next_execution_date and another one that actually executes the periodic functionality per Job instance. This way you don't have to do any manual cancelling and you only need 1 periodic task that just runs indefinitely but doesn't actually execute anything if there are no Job instances that need to be run.\nNote: this will only be a reasonable approach if you have multiple of these tasks and you potentially want to control the end_dates in your interface.","Q_Score":0,"Tags":"django,cron,django-celery,periodic-task,python-huey","A_Id":65550829,"CreationDate":"2021-01-03T04:00:00.000","Title":"How to add expiry date in HUEY dynamic periodic task just like in celery tasks?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I am creating a webapp using django and react in which multiple user can control playback of a spotify player (play\/pause, skip). This is useful in case of a house party or something where people are listening to a common device . I am thinking if i can integrate the spotify web player sdk and all users can listen to synced playback and control at the sametime remotely. I understand single spotify account needs to register that webapp to be used as device. My question is if can i control the state of playback if the page is opened by multiple users so that they listen to a song synchronously.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":314,"Q_Id":65549146,"Users Score":0,"Answer":"IDEA:\nYou can make a \"Room\" in your webapp like every room will generate a unique ID for every room and a Password any person who want to enter this room will use this Password to enter that room.\nHow to Sync every song  ?\nThis is the hard part but you can  do it using sockets (my recommendation,... you can also use something else). Socket will enable you to send information (if anyone changed, play, pause or stoped the song) to every user who are accessing that room you have to change, play, pause or stop the song accordingly.","Q_Score":0,"Tags":"javascript,python,reactjs,django,spotify","A_Id":65549258,"CreationDate":"2021-01-03T11:12:00.000","Title":"Playback state control of spotify web player sdk using spotify api","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I'm admittedly beginner to intermediate with Python and novice to BeautifulSoup\/web-scraping.  However, I have successfully built a couple of scrapers.  Normal tags = no problem (e.g., div, a, li, etc)\nHowever, can't find how to reference this tag with .select or .find or attrs=\"\" or anything:\n..........\n<react type=\"sad\" msgid=\"25314120\" num=\"2\"\n..........\nI ultimately want what looks like the \"num\" attribute from whatever this ghastly thing is ... a \"react\" tag (though I don't think that's a thing?)?","AnswerCount":3,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":148,"Q_Id":65557453,"Users Score":0,"Answer":"The user \"s n\" was spot on!  These are dynamically created javascript which I didn't know anything about, but was pretty easy to figure out.  Using the SeleniumLibrary in Python and a \"headless\" WebChromeDriver together, you can use Selenium selectors like Xpath and many others to find these tags.","Q_Score":0,"Tags":"python,web-scraping,beautifulsoup","A_Id":65573560,"CreationDate":"2021-01-04T03:46:00.000","Title":"bs4 BeautifulSoup - can't find what looks like custom tag to save my life","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am deploying my Application on Digital Ocean and if I update my application the traffic would be interrupted.\nIs there a way to update the flask application without interrupting the traffic.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":59,"Q_Id":65558830,"Users Score":0,"Answer":"A solution would be having two back-end APIs using same database.\nWhile updating one of the APIs, you'd direct the traffic to the other API using a load balancer, a reverse proxy or whatever.\nAfter updating one of the APIs, you can direct the traffic to the updated API and deploy the other one.","Q_Score":0,"Tags":"python,flask","A_Id":65558860,"CreationDate":"2021-01-04T07:05:00.000","Title":"How can we update Deployed Flask Application without interrupting live traffic?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I need your advice on something that I'm working on as a part of my work.\nI'm working on automating the Aurora Dump to S3 bucket every midnight. As a part of it, I have created a ec2 instance that generates the dump and I have written a python script using boto3 which moves the dump to S3 bucket every night.\nI need to intimate a list of developers if the data dump doesn't take place for some reason.\nAs of now, I'm posting a message to SNS topic which notifies the developers if the backup doesn't happen. But I need to do this with Cloudwatch and I'm not sure how to do it.\nYour help will be much appreciated. ! Thanks!","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":30,"Q_Id":65559529,"Users Score":0,"Answer":"I have created a custom metric to which I have attached a Cloudwatch alarm and it gets triggered if there's an issue in data backup process.","Q_Score":1,"Tags":"python,amazon-web-services,amazon-s3,automation,cloudwatch-alarms","A_Id":65574562,"CreationDate":"2021-01-04T08:15:00.000","Title":"Cloudwatch Alarm for Aurora Data Dump Automation to S3 Bucket","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I realize similar questions have been asked however they have all been about a sepficic problem whereas I don't even now how I would go about doing what I need to.\nThat is: From my Django webapp I need to scrape a website periodically while my webapp runs on a server. The first options that I found were \"django-background-tasks\" (which doesn't seem to work the way I want it to) and 'celery-beat' which recommends getting another server if i understood correctly.\nI figured just running a seperate thread would work but I can't seem to make that work without it interrupting the server and vice-versa and it's not the \"correct\" way of doing it.\nIs there a way to run a task periodically without the need for a seperate server and a request to be made to an app in Django?","AnswerCount":2,"Available Count":2,"Score":1.2,"is_accepted":true,"ViewCount":87,"Q_Id":65567300,"Users Score":1,"Answer":"'celery-beat' which recommends getting another server if i understood correctly.\n\nYou can host celery (and any other needed components) on the same server as your Django app. They would be separate processes entirely.\nIt's not an uncommon setup to have a Django app + celery worker(s) + message queue all bundled into the same server deployment. Deploying on separate servers may be ideal, just as it would be ideal to distribute your Django app across many servers, but is by no means necessary.","Q_Score":1,"Tags":"python,django","A_Id":65568135,"CreationDate":"2021-01-04T17:44:00.000","Title":"Running \"tasks\" periodically with Django without seperate server","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I realize similar questions have been asked however they have all been about a sepficic problem whereas I don't even now how I would go about doing what I need to.\nThat is: From my Django webapp I need to scrape a website periodically while my webapp runs on a server. The first options that I found were \"django-background-tasks\" (which doesn't seem to work the way I want it to) and 'celery-beat' which recommends getting another server if i understood correctly.\nI figured just running a seperate thread would work but I can't seem to make that work without it interrupting the server and vice-versa and it's not the \"correct\" way of doing it.\nIs there a way to run a task periodically without the need for a seperate server and a request to be made to an app in Django?","AnswerCount":2,"Available Count":2,"Score":0.0996679946,"is_accepted":false,"ViewCount":87,"Q_Id":65567300,"Users Score":1,"Answer":"I'm not sure if this is the \"correct\" way but it was a cheap and easy way for me to do it. I just created custom Django Management Commands and have them run via a scheduler such as CRON or in my case I just utilized Heroku Scheduler for my app.","Q_Score":1,"Tags":"python,django","A_Id":65568327,"CreationDate":"2021-01-04T17:44:00.000","Title":"Running \"tasks\" periodically with Django without seperate server","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I have been trying to deploy an app on Heroku, which works fine on my local but while deploying gives me the error AttributeError: module 'sklearn.utils.deprecation' has no attribute 'DeprecationDict'","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":162,"Q_Id":65582634,"Users Score":0,"Answer":"Solved: The problem arose because the sklearn version used to train the model was old, whereas the version used by Heroku to load the model was the newer one, so need to make sure the requirement.txt has the same version used to train the model.","Q_Score":0,"Tags":"python,pandas,machine-learning,scikit-learn","A_Id":65594165,"CreationDate":"2021-01-05T16:18:00.000","Title":"Heroku Deployment problem AttributeError: module 'sklearn.utils.deprecation' has no attribute 'DeprecationDict'","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am building my website which contains a python(.py) file, html, css and JS file. I want to know that how can I run my python script in siteground from my hosting account so that it can scrape data from a site and output a JSON file to Javascript file which can display it on the webpage.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":448,"Q_Id":65583183,"Users Score":0,"Answer":"I would use cron jobs to run jobs in the foreground","Q_Score":0,"Tags":"python,selenium","A_Id":65584141,"CreationDate":"2021-01-05T16:52:00.000","Title":"How can I run my Python Script in Siteground Hosting Server","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"According to the documentation\nAWS_S3_MAX_MEMORY_SIZE(optional; default is 0 do not roll over)\nThe  maximum  amount  of  memory  (in bytes) a file can take up before being rolled over into a temporary file on disk.\nCan someone explain this a bit more? Is this a way I could throttle upload sizes? What does \"being rolled over\" refer to?\nThank you","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":151,"Q_Id":65602282,"Users Score":2,"Answer":"System memory is considered limited, while disk space is usually not (practically speaking).  Storing a file in memory is a trade-off where you get better speed of access, but use up more of your memory to do so.  Say you have a large file of 1GB, is it really worth using up so much memory just to access that file faster?  Maybe if you have a lot of memory and that file is accessed very frequently, but maybe not. That is why there are configurable limits like this.  At some point, the trade-off is not worth it.\n\"Rolling over\" would refer to when the in-memory file has gone over the set limit, and then gets moved into file-on-disk.","Q_Score":0,"Tags":"python,django,amazon-s3","A_Id":65602604,"CreationDate":"2021-01-06T19:33:00.000","Title":"What does AWS_S3_MAX_MEMORY_SIZE do in django-storages","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"In my django app, i have user,employee,admin modules.\ndo I can create seperate views.py files for user,employee and admin\neg:\ni have folder called \"AdminFolder\" and I have added seperate adminView.py in it\nis it allowed in django?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":84,"Q_Id":65607902,"Users Score":0,"Answer":"Yes, you can. You may create some folders for separating views files and just show the path for files","Q_Score":0,"Tags":"python,django","A_Id":65608556,"CreationDate":"2021-01-07T06:59:00.000","Title":"can we create separate view files in django app?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I tried to crawl a lot of data in Python, but I wondered if the item object would run out of memory during data persistence as the amount of data grew","AnswerCount":3,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":71,"Q_Id":65622275,"Users Score":0,"Answer":"Item objects are not kept in memory forever, as data is persisted they are removed from memory, so unless each item object is extremely big (unlikely), a large number of item objects should never be a problem.\nYou are more likely to run out of disk, depending on the amount of data you are extracting. Make sure you have enough disk wherever you are persisting the extracted data.","Q_Score":0,"Tags":"python,scrapy","A_Id":66309899,"CreationDate":"2021-01-08T01:34:00.000","Title":"If you use the Scrapy framework to crawl large amounts of data, the item object will run out of memory\uff1f","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I tried to crawl a lot of data in Python, but I wondered if the item object would run out of memory during data persistence as the amount of data grew","AnswerCount":3,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":71,"Q_Id":65622275,"Users Score":0,"Answer":"Yes it probably will. I've done large jobs and eventually it crashed. The RAM memory limit on your system will depend though. Maybe you can solve it by saving the items into textfiles or similar and then delete the items from memory.\nWhen I need to to large scraping jobs I will usually just divide it into smaller jobs. If you're scraping the same website, like example.com?page={page_number} you can limit to say 10 000 pages and when you run the spider the second time you continue on page 10 000. You'll need to save down what page you're currently on though, in a text file through and API.","Q_Score":0,"Tags":"python,scrapy","A_Id":65625931,"CreationDate":"2021-01-08T01:34:00.000","Title":"If you use the Scrapy framework to crawl large amounts of data, the item object will run out of memory\uff1f","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I recently did a project where I have to get the following input from the user:\nDate in DD form, Month in MM form, Year in YY form, Century (19, 20 0r 21) and the date format(MM-DD-YYYY, DD-MM-YYYY, YYYY-MM-DD).\nAnd I have to print the date in the format chosen by the user... Further I have to ask the user the number of days to be added to the date that was printed previously and then add the no. of days and then print it and if the user should be asked if he wants to continue adding days, if they choose yes.. again they'll be asked the no. of days to be added, if they select no then program ends there....\nNow I have made a HTML files for that... The problem is I don't know how to combine the Python and HTML files... Please help me in this regard.","AnswerCount":2,"Available Count":1,"Score":0.0996679946,"is_accepted":false,"ViewCount":1565,"Q_Id":65625385,"Users Score":1,"Answer":"The keywords you should be looking are a web framework to host your application such as Flask, Django, and a template language to combine python and HTML to use it via these frameworks, such as Jinja2 or Django's own template language. I suggest Flask with Jinja2 since it's a micro framework and easy to start with.","Q_Score":1,"Tags":"python,html","A_Id":65625476,"CreationDate":"2021-01-08T08:09:00.000","Title":"How can I combine a HTML and Python File?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm using django-channels. When an exception is raised within a consumer it will log the error, the websocket connection will be disconnected and then it will re-connect again.\nI would like to send a websocket message before it disconnects. I've tried to catch the error, send the message and then re-raise the exception. But the message still isn't sent.\nWhat's the best way of achieving this?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":460,"Q_Id":65653802,"Users Score":2,"Answer":"When you raise an error it seems like the the actual raising of the error takes precedence of sending the message which happens later.\nSo the solution I went with in the end was to catch the exception in place, append the exception and check whether there were any exceptions to be raised after a message was sent.\nIf there was an error to raise, raise it. That way errors are raised server side and any errors will get known frontend side as well.\nAlternatively, which might be a better solution. Catch the error and then log the exception. Have a special method that sends the error back to frontend and then return early.\nThat way the server will never disconnect and there is no need for re-connection. Which saves some time and processing.","Q_Score":0,"Tags":"python,django,channels","A_Id":65654479,"CreationDate":"2021-01-10T13:29:00.000","Title":"Send a websocket message when exceptions is raised in django channels","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a scraping project I threw together with scrapy in python. Now I've come across certain data that are only loaded onto the page as a user scrolls down. How do I emulate this in my scrapy spiders?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":68,"Q_Id":65659131,"Users Score":0,"Answer":"Inspect the page (Press F12) in Google Chrome or similar.\nClick on the Network tab.\nScroll down on the page until you the new data is rendered.\nAt the same time the new data is rendered in your browser you should see a new file pop up in the inspection panel.\nThe file could be anything depending on the site but most of the time it's JSON.\nClick on the file in inspection panel and copy the Request URL.\nBack in scrapy you can send a request to this URL the get the dynamically rendered data.","Q_Score":0,"Tags":"python-3.x,web-scraping,scrapy","A_Id":65664542,"CreationDate":"2021-01-10T22:19:00.000","Title":"Scraping data requiring scrolling down with scrapy in python","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I wanted to know whether it is possible to enable IAP OAuth for App Engine but for a subdomain or a subfolder. I have already enabled it for the domain, but I don't want it to show up for the entire website. For example: I want to use IAP secured login on admin.website.com but users to website.com should be able to access it without any issues. It is also okay if this can be done for website.com\/admin (I suppose enabling on website.com\/admin is a lot easier too)\n(Website name changed for privacy)","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":146,"Q_Id":65661512,"Users Score":0,"Answer":"You can activate or deactivate IAP (deactivate means grant allUsers with IAP-Secured Web App User role) per service. It's the finest granularity, you can't deactivate it by URL path.","Q_Score":2,"Tags":"google-app-engine,google-cloud-platform,google-app-engine-python,identity-aware-proxy","A_Id":65669282,"CreationDate":"2021-01-11T04:56:00.000","Title":"How to enable IAP on a subdomain in App Engine?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"i have designed and exported a URDF model of a robot using solidworks and the sw2urdf plugin. Now i am trying to load it using pybullet module in python to simulate it and i keep getting the error of:\nerror: Cannot load URDF file.\nAny help would be much appreciated as this doesn't give much information about what might be wrong?","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":2007,"Q_Id":65674052,"Users Score":0,"Answer":"firstly you need to entire folder from the export in the directory you using. Secondly make sure all coordinate systems match for the global and each joint between links.\nThis seemed to work for me","Q_Score":1,"Tags":"python,ros","A_Id":65706833,"CreationDate":"2021-01-11T20:28:00.000","Title":"Cannot load a URDF file using pybullet","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"i have designed and exported a URDF model of a robot using solidworks and the sw2urdf plugin. Now i am trying to load it using pybullet module in python to simulate it and i keep getting the error of:\nerror: Cannot load URDF file.\nAny help would be much appreciated as this doesn't give much information about what might be wrong?","AnswerCount":2,"Available Count":2,"Score":0.0996679946,"is_accepted":false,"ViewCount":2007,"Q_Id":65674052,"Users Score":1,"Answer":"Make sure that the urdf file that you created has been connected to obj file. If you open ufdf file there must be a object link.\n<mesh filename=\"\"...>","Q_Score":1,"Tags":"python,ros","A_Id":68151122,"CreationDate":"2021-01-11T20:28:00.000","Title":"Cannot load a URDF file using pybullet","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a Django app with a standard django.contrib.auth backend and have a lot of existing users, now I want to add login via Google account using Python Social Auth. Is there any way to allow login via Google account for existing users? How should I associate it with existing users?\nIs it okey to set up 'social_core.pipeline.social_auth.associate_by_email' ?\nSo when user try to log in using Google account and already have an account (created using standard registration with password) in my app then will be automatically logged in. I don't want to allow creating new accounts using Python Social Auth, only allow to login via Google for existing users.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":163,"Q_Id":65681133,"Users Score":0,"Answer":"Yes Cox, you can use this pipeline but pay attention because according to the django doc :\n\nThis pipeline entry is not 100% secure unless you know that the\nproviders enabled enforce email verification on their side, otherwise\na user can attempt to take over another user account by using the same\n(not validated) email address on some provider.","Q_Score":4,"Tags":"python,django,python-social-auth","A_Id":71218315,"CreationDate":"2021-01-12T09:27:00.000","Title":"How to associate existsing users from django.contrib.auth with Python Social Auth (Google backend)?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"ERROR: mysqlclient-1.4.6-cp38-cp38-win32.whl is not a supported wheel on this platform.\n!     Push rejected, failed to compile Python app.\n!     Push failed","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":25,"Q_Id":65699181,"Users Score":0,"Answer":"Try google, \"mysql build from wheel\".\nFind your operating system.\nDownload.\nTry again.","Q_Score":0,"Tags":"python,django,mysql-cli","A_Id":65702391,"CreationDate":"2021-01-13T09:36:00.000","Title":"Not Able To Deploy Django App Because of This Error How To Fix It","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"So I'm currently upgrading a Django app from 1.8 to 3.1 and came upon the following error:\nAttributeError: 'QuerySet' object has no attribute 'field_names'\nI have tried to find deprecation information on this attribute and checked the QuerySet API for information but couldn't find anything relevant.\nHas anybody gone through the same?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":32,"Q_Id":65704613,"Users Score":0,"Answer":"Unless I missed out on any of the release notes from 1.8 to 2.0 or the deprecation timeline, it's not documented that QuerySet objects have an attribute 'field_names' that's basically a list of the names of the columns of the table the QuerySet belongs to.\nLooking at the code from stable 1.8 and stable 1.9 of django\/db\/models\/query.py you can see that the attribute was removed.\nIn case you were using that attribute and need to have it work after an update, you can use the Meta API of Django's Models like this:\nfield_names = [f.name for f in Object._meta.get_fields()]","Q_Score":0,"Tags":"python,django","A_Id":65704614,"CreationDate":"2021-01-13T15:08:00.000","Title":"QuerySet has no field_names?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am researching on Celery as background worker for my flask application. The application is hosted on a shared linux server (I am not very sure what this means) on Linode platform. The description says that the server has 1 CPU and 2GB RAM. I read that a Celery worker starts worker processes under it and their number is equal to number of cores on the machine - which is 1 in my case.\nI would have situations where I have users asking for multiple background jobs to be run. They would all be placed in a redis\/rabbitmq queue (not decided yet). So if I start Celery with concurrency greater than 1 (say --concurrency 4), then would it be of any use? Or will the other workers be useless in this case as I have a single CPU?\nThe tasks would mostly be about reading information to and from google sheets and application database. These interactions can get heavy at times taking about 5-15 minutes. Based on this, will the answer to the above question change as there might be times when cpu is not being utilized?\nAny help on this will be great as I don't want one job to keep on waiting for the previous one to finish before it can start or will the only solution be to pay money for a better machine?\nThanks","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":179,"Q_Id":65709154,"Users Score":1,"Answer":"This is a common scenario, so do not worry. If your tasks are not CPU heavy, you can always overutilise like you plan to do. If all they do is I\/O, then you can pick even a higher number than 4 and it will all work just fine.","Q_Score":2,"Tags":"python,celery","A_Id":65718359,"CreationDate":"2021-01-13T20:16:00.000","Title":"Run multiple processes in single celery worker on a machine with single CPU","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I have a interactive plotly graph which I wish to put in to a Java GUI.\nI am using swing for the Java GUI.\nthe plotly functions and displays correctly on Chrome, but not on Java swing components.\nHow should I go about doing this?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":81,"Q_Id":65715368,"Users Score":0,"Answer":"You need to start plotly as a seperated web service and call it via embedded browser.","Q_Score":1,"Tags":"java,python,browser,plotly","A_Id":71008038,"CreationDate":"2021-01-14T08:07:00.000","Title":"Embedding a Plotly graph to Java GUI","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"get error when use this\ndf = pd.read_csv('filename.csv', usecols=[1,5,7])\nreturn Response(df.to_json(),status=status.HTTP_200_OK)","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":65,"Q_Id":65730183,"Users Score":0,"Answer":"df.to_json (r'Path where the new JSON file will be stored\\New File Name.json')\nto need to first save the than send it to a response","Q_Score":0,"Tags":"python,django,django-views","A_Id":65730219,"CreationDate":"2021-01-15T03:38:00.000","Title":"How to create response json from pandas csv in django?","Data Science and Machine Learning":1,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am working on my personal project for an oscilloscope, where I send bulk data from MCU(STM32) to PC through USB Full-Speed (12 Mbits). I would like to communicate with the device(STM32) by using PySerial. I found out that USB is half-duplex, where the host (PC) sets talking privileges with the device - \"speak when you're spoken to\".  What I don't understand is how does the host set the talking privileges - Does my computer or pyserial automatically handle this, or do I have to do some handshaking protocol that needs to be implemented in code in both the host and device? I'm wondering since in the event both device and host are sending data, what happens to the data? Thank you!","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":103,"Q_Id":65732165,"Users Score":0,"Answer":"On your PC you do not have to worry about the USB protocol. That is the responsibility of the USB stack in your OS and the associated USB device drivers.\nSo you just use PySerial to send and receive your data.","Q_Score":0,"Tags":"python,serial-port,usb,pyserial","A_Id":65733185,"CreationDate":"2021-01-15T07:37:00.000","Title":"Confused about PySerial with USB Full-speed half-duplex talking priority","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I have a raspberry pi, a flask server, a flask client, and two different networks.\nwhen I connect a wifi adapter to the raspberry pi I can see that I have a new interface called \"wlan1\" is there a way to run a the server for example on \"wlan0\" and the client on \"wlan1\".\nwhat I'm trying to do is run the server on a different network than the client (while both of them are on the pi).","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":87,"Q_Id":65760471,"Users Score":2,"Answer":"Server:\nFor the server part, you need to \"bind\" the listening socket to the IP address of wlan0.\n\nFind the IP address of wlan0 using ifconfig wlan0 or ip addr show dev wlan0 (e.g. 192.168.0.2)\nBind the Flask server to that IP address using app.run(host='192.168.0.2', port=80)\n\nIf you bind to 0.0.0.0, it will be reachable from all network devices.\nClient:\nA little bit more involved, take a look at how \"routing tables\" work for the theory.\n\nFind out the IP address of the server that your client will connect to (e.g. 93.184.216.34)\nFind out the IP address of the default gateway on the interface wlan1, for example with ip route (look for \"default via  dev wlan1\"), e.g. \"default via 192.168.1.1 dev wlan1\"\nAdd a route to that IP address via the gateway and interface, using route add 93.184.216.34 gw 192.168.1.1 dev wlan1\n\nNote that the routing table will affect all programs on the raspberry pi, not just your client application.","Q_Score":1,"Tags":"python,flask","A_Id":65761573,"CreationDate":"2021-01-17T12:17:00.000","Title":"Run flask file on wlan1 instead of wlan0","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to create an AWS lambda function that help user collect data from a website (using selenium and headless-chromium). The website requires sms code verification during login so I need to get it from the user and pass it back to the AWS Lambda function\nthe flow will be:\n\nusername & password send to lambda function\nlambda function start, chromium auto login with username & password\nwaiting for sms code from user\nuser enter sms code, code pass to lambda function\nlambda function continue\n\nis it possible to do so? like the input() function when running python locally\nthanks!!\n*first question in stackoverflow! let me know if anything doesn't make sense","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":772,"Q_Id":65762905,"Users Score":0,"Answer":"We need at least two Lambdas.\nSecond Lambda:\n\nTakes OTP & UserId as input.\nWrites a record to DynamoDb with userId and OTP.\n\nFirst Lambda:\n\nLambda is invoked with user Id and password\nStart a selenium browser session.\nLogin and write a record to Dynamo.\nKeep checking Dynamo every second for an entry for userId with OTP in Dynamo.\nSet a timeout and complete Login Process.\n\nMain disadvantage of this approach is we have first Lambda running for entire time of login. But if we can't break the login and OTP process, I don't see another way.\nMay be having a ECS Fargate task instead of Lambda function may save some cost as we can easily run multiple selenium browser sessions in single ECS Task.","Q_Score":1,"Tags":"python,amazon-web-services,selenium,aws-lambda,headless-browser","A_Id":65763580,"CreationDate":"2021-01-17T16:07:00.000","Title":"AWS Lambda: Python user input possible?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a Google Sheet with a list of products for an online store, but no prices. Is there a script that will scrape the website and add the prices for each into my Google Sheet? To add to the complexity, the website is only accessible with a login.\nI'm very new to programming so any help would be appreciated.\nThanks","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":39,"Q_Id":65780501,"Users Score":0,"Answer":"There is no such script, but there are libaries that help you scrape data from websites.\nLet's say you pick Selenium.\nThe script would look something like this.\nOpen webbrowser, navigate to your site, login, and then do stuff you need to do. It does exactly what a normal user could do. Click on a element, input text, select an item, etc...","Q_Score":0,"Tags":"javascript,python,web-scraping","A_Id":65780779,"CreationDate":"2021-01-18T18:56:00.000","Title":"Scraping data off a website that requires a login","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Django newbie here.\nI have an existing Django virtual environment that was setup as part of a tutorial,\nusing Django 2.2. and Vagrant + Virtual Box on my laptop.\nThere was 1 project created for the tutorial above.\nI will now be starting another Django tutorial,\nwherein I will be creating a few more projects.\nWHat is the best way to go about this?\nShould I create a new virtual environment for tutorial #2?\nOr use the existing environment, that was setup for tutorial #1?\nFYI - tutorial #2 uses Django 1.11\nThanks a lot!","AnswerCount":2,"Available Count":1,"Score":0.0996679946,"is_accepted":false,"ViewCount":470,"Q_Id":65784548,"Users Score":1,"Answer":"It is always a good practice to create different virtual env for each django project. For example if you have multiple django projects that are using one virtualenv, and you want to host one of the django apps on a platform like Heroku which will require you create a requirements.txt file for python apps, so when you run pip freeze to get the requirements, you will find out that there are many packages in that env that is not required by your current project. And installing all those packages on your Heroku might make you run out of space before you know it. So try and keep the virtualenv different according to your project and keep the requirement.txt as well.","Q_Score":0,"Tags":"python,django","A_Id":65787547,"CreationDate":"2021-01-19T02:01:00.000","Title":"Django Question - Should i start a new project in the same virtual environment?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"So, I am really confused on how nginx works with docker.\nSuppose I have a python flask container website hosted on two servers and I am using nginx to load balance from a third server, Say bastion.\nSo, everytime I visit the website, will a new docker -flask-instance\/image be created to serve the client? Or all are served from the one flask image?\nIf yes, where can I find the new instances names which are created.","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":22,"Q_Id":65789586,"Users Score":1,"Answer":"First of you seem to be confused about the concept of images in docker. For your flask application there should only be 1 image, and there can be any number of containers which are running instances of this image.\nyou can see all running instances (containers) with  docker ps.\nAnd no generally speaking, there will not be a new container for every request.","Q_Score":0,"Tags":"python,docker,nginx,flask,nginx-reverse-proxy","A_Id":65789804,"CreationDate":"2021-01-19T10:24:00.000","Title":"Is a new docker instance\/image created everytime a web request arrives?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I have Android application made in java and I need to call Python script and put there some parameters to its function. When I make apk. of this androdid app. how can I make Android device execute python script in it ?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":34,"Q_Id":65789961,"Users Score":0,"Answer":"You can make a server out of python as backend with flask or django, and then call the server whenever your app needs to run the python script.","Q_Score":1,"Tags":"java,python","A_Id":65792459,"CreationDate":"2021-01-19T10:47:00.000","Title":"Run python script in Android aplication","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":1,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am building a django app in which the user has to write a sentence in a text box. This sentence gets then sent to the server and received by it. After that the user has to click on continue and gets on a another html page. Here the user has to record an audio of a word he sais. The word is then turned into a string and after that sent to the server. Now I would like the function in views.py to find out if the word the user said is in the sentence the user wrote before. But the sentence is only in the first function that receives the sentence after it is sent. I know I could first store the sentence but is there also another way?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":27,"Q_Id":65795652,"Users Score":1,"Answer":"yes, at least there is two ways first using a model to store the value. or a file maybe.\nsecond using some html magic(? I'm not sure of magic). using an input type=\"hidden\".\nyour first function receives the text, redirects user to another page but with an argument the text!, then inside that template store that text in a hidden input and by clicking the button send both voice and hide value text to the new functon.","Q_Score":0,"Tags":"python,python-3.x,django","A_Id":65795834,"CreationDate":"2021-01-19T16:33:00.000","Title":"django app how to get a string from a function before","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am currently writing a Scrapy Webcrawler that is meant to extract data from a site's page and append those data to an existing excel(\".tmp.xlsx\") file. The file comes with prepopulated column headers like \"name\", \"country\", \"state\", \"zip code\", \"address\", \"phone number\". The sites i will be scraping most times wont have data to populate all columns. Some can have data for just \"country\", \"state\", \"zip code\" and \"phone number\"..\nI need help setting up my pipelines.py in a way whereby i will be appending to the file based on the type of data i get from the site im crawling..","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":122,"Q_Id":65808411,"Users Score":0,"Answer":"One option (which may not be what you are looking for) is to just append the data to a CSV (using Scrapy's builtin CsvItemExporter). Then in the close_spider method, convert it to an excel file (using e.g., pandas).","Q_Score":1,"Tags":"python,excel,pandas,selenium,scrapy","A_Id":68321758,"CreationDate":"2021-01-20T11:13:00.000","Title":"How to append data to an existing Excel file based on the input?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I hope you can help me. I have a static website hosted on Heroku and I would like to implement a Python Script to be executed when a button is clicked. So, just as a reference you would have:\n\nA text field\nA button\nAnother text field\n\nThe idea is that you enter some text in the first text field, you click the button calling the Python Script, and then print the result coming from the Python Script in the second text field.\nHow would you implement such technology? Which services should be used to achieve the result?\nI think that the script should be hosted somewhere and be called via an API but I do not really know how to do it. I hope you can help me.\nThanks!","AnswerCount":3,"Available Count":2,"Score":0.0665680765,"is_accepted":false,"ViewCount":49,"Q_Id":65809728,"Users Score":1,"Answer":"I should use Flask or Django. In Flask you simply use the: name = \"your_variable\" command in your HTML code and then you can simply use the code request.form [\"your_variable\"] in your python script.","Q_Score":1,"Tags":"python,html,heroku,interaction","A_Id":65809930,"CreationDate":"2021-01-20T12:38:00.000","Title":"How can I run a Python script inside a webpage?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I hope you can help me. I have a static website hosted on Heroku and I would like to implement a Python Script to be executed when a button is clicked. So, just as a reference you would have:\n\nA text field\nA button\nAnother text field\n\nThe idea is that you enter some text in the first text field, you click the button calling the Python Script, and then print the result coming from the Python Script in the second text field.\nHow would you implement such technology? Which services should be used to achieve the result?\nI think that the script should be hosted somewhere and be called via an API but I do not really know how to do it. I hope you can help me.\nThanks!","AnswerCount":3,"Available Count":2,"Score":0.0665680765,"is_accepted":false,"ViewCount":49,"Q_Id":65809728,"Users Score":1,"Answer":"You have to use backend for your purpose. When a user clicks your button some data would be collected by your backend, handled and showed to user with the help of API. You can start with learning a little bit of Flask and learning Django later for some bigger projects.","Q_Score":1,"Tags":"python,html,heroku,interaction","A_Id":65809806,"CreationDate":"2021-01-20T12:38:00.000","Title":"How can I run a Python script inside a webpage?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have tried to retrieve text in a rectangle. This rectangle is retrieved from\nPage.getLinks(). when I try to get the text in the rectangle using getTextbox() and getText(\u201ctext\u201d, clip=rect). Both methods return Empty string","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":152,"Q_Id":65815905,"Users Score":1,"Answer":"Try expanding your rectangle's coordinates slightly. The default get_textbox parameter excludes anything intercepting the bounds of the rectangle.\nI was having the exact same issue and this solved it.","Q_Score":0,"Tags":"python,pdf,pymupdf","A_Id":70807995,"CreationDate":"2021-01-20T18:59:00.000","Title":"Pymupdf getTextbox returns empty","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":1,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"As described in the title, I tried installing the Markdown2 package through pip and through PyCharm's built-in package installer, as well as with easy_install, all of which appeared to be successful, but I'm still getting a ModuleNotFoundError at runtime.\nI'm working in a Django venv, not sure if that impacts it. I checked the library and scripts folders and the markdown2 files seem to be present. Not sure what I'm doing wrong at this point but any help would be appreciated!\nAlso I checked to make sure the interpreter is in the venv\/scripts folder and it is. I'm still super new to python venvs so I could be doing something else wrong.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":44,"Q_Id":65818111,"Users Score":0,"Answer":"Turns out the configuration (top right corner) was using a different interpreter than what was in the project settings. Oops.\nIf anyone else has this problem, click the configuration dropdown in the top right (icon left of \"run\" button) --> edit configurations --> Environment --> Python interpreter. I might just be dumb and didn't know it was separate from the project settings interpreter but TMYK I guess?","Q_Score":0,"Tags":"python,pip,python-venv","A_Id":65818340,"CreationDate":"2021-01-20T21:43:00.000","Title":"Python package is in venv\/lib\/site-packages folder and shows as installed in PyCharm but throws ModuleNotFoundError","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm newbee in programming and I need some help.\nI have to work with PyCharm and Odoo, so my point is to configure PyCharm for Odoo debugging. First of all I made a module and a model, it perfectly work with database(i can see and check it).\nI want PyCharm not to highlight word 'odoo', 'models' and 'fields' by red line(unresolved reference) or green line(Package containing module 'odoo' is not listed in project requirements)\nI've read lots of tutorials and manuals but nothing helps me.\nI think the problem is that PyCharm doesn't see the odoo package (or smth like that).\nThere is no odoo in requirements.txt\nSo, I need to coonect PyCharm and Odoo, without red or green underlining. PyCharm doesn't see the Odoo module.\nMaybe the problem with the fact that my project folder located not in odoo main folder, but maybe im wrong.\nSorry for my english.","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":583,"Q_Id":65842520,"Users Score":0,"Answer":"Install and create virtualenv and install odoo. Then add virtualenv path to pycharm.","Q_Score":0,"Tags":"python,pycharm,odoo","A_Id":65842696,"CreationDate":"2021-01-22T09:29:00.000","Title":"odoo PyCharm configuration \/ no module named 'odoo'","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm newbee in programming and I need some help.\nI have to work with PyCharm and Odoo, so my point is to configure PyCharm for Odoo debugging. First of all I made a module and a model, it perfectly work with database(i can see and check it).\nI want PyCharm not to highlight word 'odoo', 'models' and 'fields' by red line(unresolved reference) or green line(Package containing module 'odoo' is not listed in project requirements)\nI've read lots of tutorials and manuals but nothing helps me.\nI think the problem is that PyCharm doesn't see the odoo package (or smth like that).\nThere is no odoo in requirements.txt\nSo, I need to coonect PyCharm and Odoo, without red or green underlining. PyCharm doesn't see the Odoo module.\nMaybe the problem with the fact that my project folder located not in odoo main folder, but maybe im wrong.\nSorry for my english.","AnswerCount":2,"Available Count":2,"Score":1.2,"is_accepted":true,"ViewCount":583,"Q_Id":65842520,"Users Score":0,"Answer":"SOLVED:\nYou just need to add odoo folder to the source folder of the project in PyCharm settings:\nFile - Settings - Project Structure - + Add content root\nThere you should pick Odoo13\\server folder","Q_Score":0,"Tags":"python,pycharm,odoo","A_Id":65934070,"CreationDate":"2021-01-22T09:29:00.000","Title":"odoo PyCharm configuration \/ no module named 'odoo'","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I tried makemigrations, migrate, and even many methods stated in stack overflow but nothing is happening. Please tell me the reason why this happens and how can i solve it?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":250,"Q_Id":65847395,"Users Score":0,"Answer":"I think this can help you :-\nDelete all the migrations in your app except init.py file. AND then again type python manage.py make makemigrations and type python manage.py migrate","Q_Score":0,"Tags":"python,django,database,django-models,error-handling","A_Id":65848539,"CreationDate":"2021-01-22T14:51:00.000","Title":"django.db.utils.ProgrammingError: (1146, \"Table 'online_examination_system.studentapp_courses' doesn't exist\")","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Basically what I want to achieve is that,\nI have a Django project. and I want to store the db of the project on my Server(CPanel). and access it from the Laptop. I tried searching about Remote MySql on Django but couldnt find anything,\nI am not using Google Cloud or PythonAnywhere, or heroku,\nis there a way? Please.\nThanks.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":102,"Q_Id":65856647,"Users Score":0,"Answer":"Usually, when you want to access DB remotely on the CPanel of a Virtual server, remote access should be enabled. In my experience, providers close remote connections on VServers unless you ask them to open them. if they open it, you can use putty or similar software to connect to the server and run DB commands.","Q_Score":0,"Tags":"python,mysql,django","A_Id":65856710,"CreationDate":"2021-01-23T07:04:00.000","Title":"I am looking for a way to connect to my database from my laptop, this database is on CPANEL, and i am making a Django Project","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm not new with Python programming, today I tried to install Django using \"pip install Django\" on my computer.\nI'm using Python 3.9.1, pip 20.2.3, PyCharm (community) 2020.3.2 .\nI've tried everything, using pip3, trying to install libraries from pycharm termianl and from the pycharm interpreter configuration, I even format my computer(full foramt and the quick foramt) and nothing helped my.\nI searched for similar problems here but all of them didn't work.\nI get this problem over and over again (I tried to set the timeout to 100, and my internet connection is good and fast enough):  (in this tryout I've tried to install numpy library, I get the same problem with every library that I tried)\n(venv) C:\\Users\\achik\\PycharmProjects\\first>pip install numpy\nWARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ReadTimeoutError(\"\nHTTPSConnectionPool(host='pypi.org', port=443): Read timed out. (read timeout=15)\")': \/simple\/numpy\/\nWARNING: Retrying (Retry(total=3, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ReadTimeoutError(\"\nHTTPSConnectionPool(host='pypi.org', port=443): Read timed out. (read timeout=15)\")': \/simple\/numpy\/\nWARNING: Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ReadTimeoutError(\"\nHTTPSConnectionPool(host='pypi.org', port=443): Read timed out. (read timeout=15)\")': \/simple\/numpy\/\nWARNING: Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ReadTimeoutError(\"\nHTTPSConnectionPool(host='pypi.org', port=443): Read timed out. (read timeout=15)\")': \/simple\/numpy\/\nWARNING: Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ReadTimeoutError(\"HTTPSConnection\nPool(host='pypi.org', port=443): Read timed out. (read timeout=15)\")': \/simple\/numpy\/\nERROR: Could not find a version that satisfies the requirement numpy (from versions: none)\nERROR: No matching distribution found for numpy\nPlease help me, I'm about to lose my mind\nUPDATE:\nI formatted my computer and reinstall windows 10, installed python\n3.7 and older version of PyCharm and it didn't work.\nI formatted again my pc and installed Ubuntu 18.04 lts and again I have the same problem.\nPLEASE help me!","AnswerCount":3,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":248,"Q_Id":65866835,"Users Score":0,"Answer":"In Pycharm sometime this type of issue happens due to their venv file, if possible then please remove venv file from pycharm directory any add python in the environment variable\nand try to install NumPy from CMD.\nI hope this will resolve your issue, I was also facing the same issue and tried this & fortunately being solved.","Q_Score":0,"Tags":"python,windows,pip,pycharm","A_Id":65866892,"CreationDate":"2021-01-24T03:19:00.000","Title":"errors while using pip install on windows 10 and Ubuntu 18.04 lts","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm not new with Python programming, today I tried to install Django using \"pip install Django\" on my computer.\nI'm using Python 3.9.1, pip 20.2.3, PyCharm (community) 2020.3.2 .\nI've tried everything, using pip3, trying to install libraries from pycharm termianl and from the pycharm interpreter configuration, I even format my computer(full foramt and the quick foramt) and nothing helped my.\nI searched for similar problems here but all of them didn't work.\nI get this problem over and over again (I tried to set the timeout to 100, and my internet connection is good and fast enough):  (in this tryout I've tried to install numpy library, I get the same problem with every library that I tried)\n(venv) C:\\Users\\achik\\PycharmProjects\\first>pip install numpy\nWARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ReadTimeoutError(\"\nHTTPSConnectionPool(host='pypi.org', port=443): Read timed out. (read timeout=15)\")': \/simple\/numpy\/\nWARNING: Retrying (Retry(total=3, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ReadTimeoutError(\"\nHTTPSConnectionPool(host='pypi.org', port=443): Read timed out. (read timeout=15)\")': \/simple\/numpy\/\nWARNING: Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ReadTimeoutError(\"\nHTTPSConnectionPool(host='pypi.org', port=443): Read timed out. (read timeout=15)\")': \/simple\/numpy\/\nWARNING: Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ReadTimeoutError(\"\nHTTPSConnectionPool(host='pypi.org', port=443): Read timed out. (read timeout=15)\")': \/simple\/numpy\/\nWARNING: Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ReadTimeoutError(\"HTTPSConnection\nPool(host='pypi.org', port=443): Read timed out. (read timeout=15)\")': \/simple\/numpy\/\nERROR: Could not find a version that satisfies the requirement numpy (from versions: none)\nERROR: No matching distribution found for numpy\nPlease help me, I'm about to lose my mind\nUPDATE:\nI formatted my computer and reinstall windows 10, installed python\n3.7 and older version of PyCharm and it didn't work.\nI formatted again my pc and installed Ubuntu 18.04 lts and again I have the same problem.\nPLEASE help me!","AnswerCount":3,"Available Count":2,"Score":0.0665680765,"is_accepted":false,"ViewCount":248,"Q_Id":65866835,"Users Score":1,"Answer":"I had the same problem. Sometimes it is because of internet connection and sometimes cmd working so slow.\nIf your antifilter is open, close it before executing commands on cmd.\nAnd whenever you faced this problem close cmd and run it as admin again...\nyou can install needed packages without using pip as well.\nFor example download a suitable version of numpy and save it on C:\\Python\\Tools\\script and run it using cmd.","Q_Score":0,"Tags":"python,windows,pip,pycharm","A_Id":65868494,"CreationDate":"2021-01-24T03:19:00.000","Title":"errors while using pip install on windows 10 and Ubuntu 18.04 lts","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"Couldn\u2019t think of a solution yet.\nI have a scraper running currently. In the first 80% of one loop (every 3-4 hours), the entire process can be run in a headless server without any output needed as it uses Selenium and BS4.\nHowever for the rest of the remaining 20%, I could not program some clicking and typing actions with Selenium for that specific website. I am assuming that it is because the single page website has many many frames (I might be wrong.)\nSo, to combat this and to get around it, I basically used PyAutoGui to control my mouse and click and enter things in textfields repeatedly. I did this by specifying coordinates for each button.\nHow can I do this on Ubuntu 18.04(the server) but without a monitor? Is there a way to fake a monitor of a certain resolution so the coordinates I select when the server is plugged into a monitor of resolution xxx,yyy still works exactly without issue when i create a fake output of resolution xxx,yyy\nI have an extra monitor but I don\u2019t want it to be running all night and day and letting snooping eyes see (i live in a shared house).\nThanks\nEDIT: I reread this after posting it and sorry if the text seems messy im very tired.\nWhat i mean is that the places where the mouse is supposed to click are determined by coordinates relative to ur monitor. How can i replicate this if the monitor is unplugged?\nSorry again","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":43,"Q_Id":65872167,"Users Score":0,"Answer":"No software solution, but you could use a \"hdmi dummy\" with your current resolution. It emulates a display, so your computer will work like usually.","Q_Score":0,"Tags":"python,linux,selenium,ui-automation","A_Id":65873363,"CreationDate":"2021-01-24T15:03:00.000","Title":"How to fake output to automate UI actions on headless server?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am implementing a system that checks the plagiarism of documents.\nour stack is vuejs, nodejs\/express and flask for python.\nMy question is that i have a page which the user will upload his documents for checking and the vue ui will send a request to the backend apis with the user file to check the similarity, while this process is running a loading overlay is displayed in the same page.\nI want to update this page with live steps from the backend side like \"extracting\", \"searching\", \"comparing\", \"generating report\".\nnoting that the request sent with the user file have only one response.\nso any ideas how can i achieve this step ??\nThanks ,,","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":156,"Q_Id":65877338,"Users Score":0,"Answer":"You can return a request_id and after that you can use the id to check on the status\/stage of the request.","Q_Score":0,"Tags":"javascript,python,node.js,express,vue.js","A_Id":65877359,"CreationDate":"2021-01-25T00:01:00.000","Title":"How to send live status update from express\/flask backends to vuejs frontend","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a Flask app running in Google Cloud App Engine.  I want the user to be able to call MATLAB functions on their local instance - if they have MATLAB installed locally and the correct license, of course.\nRunning locally the app works well using matlab.engine, however, when deployed to google cloud platform it fails during build. Looking in the logs:\n\nModuleNotFoundError: No module named 'matlabengineforpython3_7\n\nSo I suspect it is because the server cannot import the required dlls etc. for the python matlab engine package to work.\nIs there a way to pass the required files to google app engine? Is this approach even possible?\nMy users will always have a local copy of MATLAB, so I am trying to find a solution that avoids needing to pay for the MATLAB server license.","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":95,"Q_Id":65882168,"Users Score":1,"Answer":"I don't believe that any solution is possible that would avoid a Matlab server license.  Your server cannot access installed Matlab on the computers of your users.\nTo install non-Python software with App Engine you need to use a custom runtime with App Engine Flexible.  Check the GAE docs for more details.","Q_Score":0,"Tags":"python,google-app-engine,flask,matlab-engine","A_Id":65886318,"CreationDate":"2021-01-25T09:37:00.000","Title":"Is it possible to call matlab.engine from Flask webapp on Google Cloud?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I installed django cookiecutter in Ubuntu 20.4\nwith postgresql when I try to make migrate to the database I get this error:\n\npython manage.py migrate\nTraceback (most recent call last):   File \"manage.py\", line 10, in\n\nexecute_from_command_line(sys.argv)   File \"\/home\/mais\/PycharmProjects\/django_cookiecutter_task\/venv\/lib\/python3.8\/site-packages\/django\/core\/management\/init.py\",\nline 381, in execute_from_command_line\nutility.execute()   File \"\/home\/mais\/PycharmProjects\/django_cookiecutter_task\/venv\/lib\/python3.8\/site-packages\/django\/core\/management\/init.py\",\nline 375, in execute\nself.fetch_command(subcommand).run_from_argv(self.argv)   File \"\/home\/mais\/PycharmProjects\/django_cookiecutter_task\/venv\/lib\/python3.8\/site-packages\/django\/core\/management\/base.py\",\nline 323, in run_from_argv\nself.execute(*args, **cmd_options)   File \"\/home\/mais\/PycharmProjects\/django_cookiecutter_task\/venv\/lib\/python3.8\/site-packages\/django\/core\/management\/base.py\",\nline 361, in execute\nself.check()   File \"\/home\/mais\/PycharmProjects\/django_cookiecutter_task\/venv\/lib\/python3.8\/site-packages\/django\/core\/management\/base.py\",\nline 387, in check\nall_issues = self._run_checks(   File \"\/home\/mais\/PycharmProjects\/django_cookiecutter_task\/venv\/lib\/python3.8\/site-packages\/django\/core\/management\/commands\/migrate.py\",\nline 64, in _run_checks\nissues = run_checks(tags=[Tags.database])   File \"\/home\/mais\/PycharmProjects\/django_cookiecutter_task\/venv\/lib\/python3.8\/site-packages\/django\/core\/checks\/registry.py\",\nline 72, in run_checks\nnew_errors = check(app_configs=app_configs)   File \"\/home\/mais\/PycharmProjects\/django_cookiecutter_task\/venv\/lib\/python3.8\/site-packages\/django\/core\/checks\/database.py\",\nline 9, in check_database_backends\nfor conn in connections.all():   File \"\/home\/mais\/PycharmProjects\/django_cookiecutter_task\/venv\/lib\/python3.8\/site-packages\/django\/db\/utils.py\",\nline 216, in all\nreturn [self[alias] for alias in self]   File \"\/home\/mais\/PycharmProjects\/django_cookiecutter_task\/venv\/lib\/python3.8\/site-packages\/django\/db\/utils.py\",\nline 213, in iter\nreturn iter(self.databases)   File \"\/home\/mais\/PycharmProjects\/django_cookiecutter_task\/venv\/lib\/python3.8\/site-packages\/django\/utils\/functional.py\",\nline 80, in get\nres = instance.dict[self.name] = self.func(instance)   File \"\/home\/mais\/PycharmProjects\/django_cookiecutter_task\/venv\/lib\/python3.8\/site-packages\/django\/db\/utils.py\",\nline 147, in databases\nself._databases = settings.DATABASES   File \"\/home\/mais\/PycharmProjects\/django_cookiecutter_task\/venv\/lib\/python3.8\/site-packages\/django\/conf\/init.py\",\nline 79, in getattr\nself._setup(name)   File \"\/home\/mais\/PycharmProjects\/django_cookiecutter_task\/venv\/lib\/python3.8\/site-packages\/django\/conf\/init.py\",\nline 66, in _setup\nself._wrapped = Settings(settings_module)   File \"\/home\/mais\/PycharmProjects\/django_cookiecutter_task\/venv\/lib\/python3.8\/site-packages\/django\/conf\/init.py\",\nline 176, in init\nraise ImproperlyConfigured(\"The SECRET_KEY setting must not be empty.\") django.core.exceptions.ImproperlyConfigured: The SECRET_KEY\nsetting must not be empty.\n\nI did the whole instructions in cookiecutter docs and createdb what is the wrong?","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":167,"Q_Id":65897801,"Users Score":0,"Answer":"Your main problem is very clear in the logs.\nYou need to set your environment SECRET_KEY give it a value, and it should skip this error message, it might throw another error if there are some other configurations that are not set properly.","Q_Score":0,"Tags":"python-3.x,django,django-rest-framework","A_Id":65898014,"CreationDate":"2021-01-26T08:12:00.000","Title":"Django cookiecutter with postgresql setup on Ubuntu 20.4 can't migrate","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"On django-background-tasks==1.1.11 (Django==2.2, Python 3.6.9), I have this problem where everytime I run python manage.py migrate, the table background_task_completedtask gets deleted. This breaks my background tasks. So far I have found a way to reverse it, as it is a separate migration from the initial one, meaning I can just python manage.py migrate background_task 0001_initial to restore it, but this does mean it will still be removed next migration.\nAny ideas for a more permanent solution?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":183,"Q_Id":65900159,"Users Score":0,"Answer":"Found a (somewhat hacky) permanent solution myself:\nBy faking migrations (python manage.py migrate --fake (or python manage.py migrate appname --fake)), you make django think the migration has been executed without actually executing it. By doing this with the migration that was bothering me, I managed to get everything working again.","Q_Score":0,"Tags":"python,django,django-migrations,background-task","A_Id":65940158,"CreationDate":"2021-01-26T11:06:00.000","Title":"Stop Django background-task from deleting completed_task model","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to set my Pycharm run\/debug configuration for robot framework tests. I would like to create configuration, where I can run any robot file in any directory with run\/debug button.\n$FileName$ works when set to Parameters field\nBut the working directory works only when the path is real. I've tried $FileDir$ and $FilePath$. None of those worked.\nNote: I know about File->Settings->External Tools option, but I believe, there is also way via run\/debug configuration","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":70,"Q_Id":65903680,"Users Score":0,"Answer":"Ok, so setting it to directory of script worked. So If you select script in first field, then this folder is automatically set for you. It worked for me like this.","Q_Score":0,"Tags":"python,pycharm,robotframework","A_Id":65934187,"CreationDate":"2021-01-26T14:56:00.000","Title":"Can I set working directory in pycharm run\/debug configuration witch something like $FileDir$?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am showing some scraped data on my Django website.. The data is changing a couple times every hour so it needs to be updated. I am using Beautiful Soup to scrape the data, then im sending it to the view and passing it in a context dictionary to present it on a website.\nThe problem is that scraping function takes some time to work and because of it the website is not loading until the function does its work. How can I make it load faster? There is no API on the data webstie.","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":32,"Q_Id":65922805,"Users Score":0,"Answer":"It depends of your algorithm, if it is an algorithm that goes through a lot of elements that can be or not updated you can save some attribute for not enter in the element. It's a first thought if you show the algorithm maybe we can give you a better answer :)","Q_Score":0,"Tags":"python,django,web-scraping,beautifulsoup","A_Id":65923047,"CreationDate":"2021-01-27T16:00:00.000","Title":"How to send scraped data to a page but without waiting for the page to load?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a pretty basic Heroku app made in Python with Jupyter and Voila. The app consists of a few ipywidgets that need to be filled in order to run a piece of code, which then goes to show a graph.\nThe app is working just fine for me, but is not working for a colleague of mine. The app does load for him, but the widgets (circled in red in the picture below) are not showing. He only sees the texts.\nAny idea what might cause this? Since the app is working fine for me, I was thinking there isn't something wrong with the app, but maybe it's something on his machine. But it's not working on both his computer and phone though...\nEDIT: Solved","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":161,"Q_Id":65923200,"Users Score":1,"Answer":"Disabling adblocker did the trick!","Q_Score":1,"Tags":"python,heroku,ipywidgets,voila","A_Id":65924762,"CreationDate":"2021-01-27T16:23:00.000","Title":"Ipywidgets not showing in Voila app deployed with Heroku for some (not all) users","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":1,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm using Sphinx to generate HTML documentation. Everything works great but for some reason, the source code and comments in the generated HTML file are really outdated. I don't even understand how it's possible. I've deleted all files multiple times and generated it again and still the same issue.","AnswerCount":2,"Available Count":1,"Score":0.0996679946,"is_accepted":false,"ViewCount":243,"Q_Id":65925179,"Users Score":1,"Answer":"I had the exact same problem. In my case, I had an older version of the package that I was documenting installed via pip and that was the source that sphinx was using to build the docs. Removing the old version with\npip uninstall <my_pkgname> solved the issue.","Q_Score":1,"Tags":"python,documentation,python-sphinx","A_Id":68017878,"CreationDate":"2021-01-27T18:27:00.000","Title":"Sphinx generates HTML output from outdated source code","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm a newbie to the django framework and trying to make a watchlist for stocks. I've already made the crux of the webapp, where-in, a user can search for a quote and add it to their watchlist, along with relevant data about that quote.\nWhat I want to do now is, to save the separate watchlists that different users are creating (after creating an account on my site) and upon logging in to my site, they can view their personalized watchlist and edit it.\nI'm using a model for storing the data for the watchlist quotes and looking for a way to provide the different personalized watchlists depending upon the logged in user.\nCan anyone give me a lead on how to employ the logic for this? Do I need to use two data bases - one for the data of the users and the other one for storing the respective user watchlists? If yes, how do I connect everything?\nEDIT: Ever used a stock investment app? The way every user\/customer can log in to their account and make\/edit and save their watchlists in the app - that is the functionality I want to implement. How\/Where do I store so many watchlists?","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":44,"Q_Id":65927879,"Users Score":1,"Answer":"use 'request.user' from your view, to know the user who sent the request and return the corresponding watchlist","Q_Score":0,"Tags":"python,django,django-models","A_Id":65928436,"CreationDate":"2021-01-27T21:46:00.000","Title":"How to provide different sets of data to different users in django?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm moving away from WordPress and into bespoke Python apps.\nI've settled on Django as my Python framework, my only problems at the moment are concerning hosting. My current shared hosting environment is great for WordPress (WHM on CloudLinux), but serving Django on Apache\/cPanel appears to be hit and miss, although I haven't tried it as yet with my new hosting company. - who have Python enabled in cPanel.\nWhat is the easiest way for me to set up a VPS to run a hosting environment for say, twenty websites? I develop everything in a virtualenv, but I have no experience in running Django in a production environment as yet. I would assume that venv isn't secure enough or has scalability issues? I've read some things about people using Docker to set up separate Django instances on a VPS, but I'm not sure whether they wrote their own management system.\nIt's my understanding that each instance Python\/Django needs uWSGI and Nginx residing within that virtual container? I'm looking for a simple and robust solution to host 20 Django sites on a VPS - is there an out of the box solution? I'm also happy to develop one and set up a VPS if I'm pointed in the right direction.\nAny wisdom would be gratefully accepted.\nAndy :)","AnswerCount":2,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":421,"Q_Id":65930682,"Users Score":3,"Answer":"Traditional approach\n\nVirtualenv is good enough and perfectly ready for production use. You can have multiple virtualenv for multiple projects on the same VM.\nIf you have multiple database engines for multiple projects. Like, MySQL for one, PostgreSQL for another something like this then you just need to set up each individually.\nInstall Nginx and configure each according to project.\nInstall supervisor to manage(restart\/start\/stop) each project individually.\nAnything that required by the project.\nHere it has a huge drawback. Because you can't use different versions on your database engine for a different project in an easy way. So, containerization is highly recommended.\n\nFor simple and robust solution,\n\nUse Docker(docker-compose) for local and production deployment.\nConfigure uWsgi with Nginx(Available on docker.)\nCreate a CI\/CD pipeline with any tool like Jenkins.\nMonitor your projects using any good tool like Raygun.\n\nThat's it.","Q_Score":1,"Tags":"python,django,nginx,web-hosting,uwsgi","A_Id":65930983,"CreationDate":"2021-01-28T03:35:00.000","Title":"Hosting multiple Django instances on a VPS","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am new to machine learning & python. I found a predictive machine learning program on jupyter notebook. Is it possible to convert that jupyter project into a standalone web application? Do I need any libraries for it ? I want to demonstrate the chart & prediction formally. Suggestions?","AnswerCount":2,"Available Count":2,"Score":1.2,"is_accepted":true,"ViewCount":329,"Q_Id":65932478,"Users Score":0,"Answer":"Yeah it is possible. If you want to convert it to web application, you should use Flask, Django, etc.  Flask is easy and light one, try it.","Q_Score":0,"Tags":"python,python-3.x,machine-learning,jupyter-notebook,prediction","A_Id":65932552,"CreationDate":"2021-01-28T07:08:00.000","Title":"How do I convert a jupyter notebook project into a standalone web application?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am new to machine learning & python. I found a predictive machine learning program on jupyter notebook. Is it possible to convert that jupyter project into a standalone web application? Do I need any libraries for it ? I want to demonstrate the chart & prediction formally. Suggestions?","AnswerCount":2,"Available Count":2,"Score":0.0996679946,"is_accepted":false,"ViewCount":329,"Q_Id":65932478,"Users Score":1,"Answer":"You need to use django or pyramid or flask and use the same codes in a reorganized way.","Q_Score":0,"Tags":"python,python-3.x,machine-learning,jupyter-notebook,prediction","A_Id":65932539,"CreationDate":"2021-01-28T07:08:00.000","Title":"How do I convert a jupyter notebook project into a standalone web application?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I created an API, deployed it on the server on 8443 port and setup cloudflare's SSL certificates.\nEverything works perfectly, but I got a problem that urls in api-root still have http scheme. Also I set X-Forwarded-Proto $scheme header in nginx.conf. What could be the problem?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":176,"Q_Id":65935111,"Users Score":2,"Answer":"I solved it. I had to add SECURE_PROXY_SSL_HEADER = ('HTTP_X_FORWARDED_PROTO', 'https') to my settings.py","Q_Score":0,"Tags":"python,django,django-rest-framework","A_Id":65936226,"CreationDate":"2021-01-28T10:20:00.000","Title":"Change urls' scheme from http to https in DRF api-root","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"There are few modules only visible in developer mode.\nI need to visible it in non-develope mode. How can i do it?\nMy findings:\nI have few xml views in common folder which has xml alone with out  <menuitems>  and in later point in another folder I have listed all the menuitems from common folder as well as current folder menu items to the order i want.\nwhy i need to place the menuitems in other folder ?\nIf i place the menu items in the common folder, odoo is giving them first as per menu sequences by default.But i need it later. so i combined all the menu items to the order i want in current folder.\nIt works in Developer mode without any issues. But in non developer mode it isn't.\nI have also verified if any groups is making this but no.\nI hope i made some sense.","AnswerCount":3,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":344,"Q_Id":65937191,"Users Score":0,"Answer":"In menuitem tag, it will be declared with groups. If you remove groups in your custom module, it will be visible without turn on developer mode.\nNOTE: Understand the purpose of reason to be hide and now visible for all.","Q_Score":1,"Tags":"python,odoo,odoo-13","A_Id":65946557,"CreationDate":"2021-01-28T12:34:00.000","Title":"Menu items not visible in developer mode odoo V13","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Currently i have a Django blog website. (Fully functional)\nThis blogwebsite is something like a social media website...\nI have read that django rest framework helps you to serialize your data.\nCould I just check about the DRF:\n\nIs serializing data important? Meaning to say what huge benefits would I get by having an additional django rest framework, and also any possible disadvantages?\n\nWould it be very difficult to \"add\" the framework into my project. Eg does it require me to download a lot of things and change a lot of my codes?\n\nWhere does DRF stand, is it in the backend of frontend or is it more of like in the middle. How does it integrate into my current IT architecture: with django as backend, htmlcssjs as frontend and postgresql as database\n\n\nThank you!\nAlso if anyone is kind enough to share resources about DRF\/ open to a short zoom sharing session on DRF, please feel free to contact at kimjoowon777@gmail.com","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":133,"Q_Id":65941254,"Users Score":0,"Answer":"The idea of Django Rest Framework (DRF) is to simplify and cut down a lot of code from your Backend (aka API).\nDjango (standalone Django, not DRF) is a framework that allows you to build Backend (and also Frontend).\nDRF is a cool library that allows you to create a backend with Django but a lot easier.\nDRF allows you to create endpoints that allow you to manipulate the Data (ie. models) very quickly and with very little code.\nThe \"Serialization part\" of DRF just automatically (also magically) transforms your models data into a response (usually json) for the client and vice versa.\nIt does take some learning and coding to transform your current backend into DRF. but in my opinion unless you backend is really special, DRF can allow you to create an awesome API with very little code","Q_Score":0,"Tags":"python,django,django-models,django-rest-framework,django-views","A_Id":65955100,"CreationDate":"2021-01-28T16:28:00.000","Title":"Should I implement the django rest framework above django?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Okay.. so I am trying to create a website where the user would have to pay before registration.\nAny help please?? The question might be weird but I am actually a beginner","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":212,"Q_Id":65941432,"Users Score":1,"Answer":"Here is what I think you can do.\nFirst make sure your registration form is the actually default django_auth model for user registration.\nThe you can put in place measures that allow the user to be verified first that means you create a payment model within the application and as soon as the user pays up, a reference number of the payment is stored in the database and marked unused. So when the user is registering within the Django application that means you can provide a form field to verify the reference code from the payment.\nIts quite a long process that requires you to play around with the Django Configuration files and modify them. My best reference and recommendation though is that...\nLet the users register and restrict some of the functionality within the application for all unpaid users. That way you save yourself a lot of time.","Q_Score":0,"Tags":"python,django,django-models,django-forms,payment","A_Id":65941618,"CreationDate":"2021-01-28T16:38:00.000","Title":"How do I make a user pay before creating user account Django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"This is my first Django app, and also my first time building an app, and I am seeking some DB and API guidance. I have an app that functions as an online directory and marketplace. What I aim to do is to provide the app to many different organizations such that the organizations have their own online directory's and marketplace's where they can manage it fully on their own, but that their data is still linked to my database so that I can then operate on the data for machine learning purposes.  This is a pretty standard\/routine practice, I realize, but I am trying to wrap my head around how best to make it work. For each organization, would there just be an instance of the app which would then be a separate app or interface that connects to the original? From my newbie understanding, that is essentially what an API is, correct?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":32,"Q_Id":65948213,"Users Score":0,"Answer":"Since it's an API, I wouldn't separate the DBs or the instances, neither make several Django apps, but I would have a dedicated clients model\/table in the DB, which would store encoded API keys for each of your organizations.\nEach client makes its request to your API by authenticating and using their API key, and the Django views answer only with the data linked to the client, as other DB tables have a foreign key to clients.\nSounds pretty standard and RESTful to me.\nSome Django \/ Django REST framework modules like \"Django REST Framework API Key\" could probably do most of this work for you.","Q_Score":0,"Tags":"python,django,api,django-models,django-rest-framework","A_Id":65948582,"CreationDate":"2021-01-29T03:01:00.000","Title":"Django DB Design and API Guidance","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I've just gotten started with Datasette and found that while I have hundreds of .sqlite databases, only one was able to load (it was empty). Every other one has had this sort of error:\nError: Invalid value for '[FILES]...': Path '\/Users\/mercury\/Pictures\/Photos' does not exist.\nAny suggestions?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":989,"Q_Id":65949007,"Users Score":0,"Answer":"It turns out this was a simple error. The file path is required to be in quotes.","Q_Score":0,"Tags":"python,datasette","A_Id":65949008,"CreationDate":"2021-01-29T04:57:00.000","Title":"Error: Invalid value for '[FILES]...': Path '{path\/to\/data}' does not exist","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am new to Django REST Api testing and I am running an error like this  raise ValueError('Related model %r cannot be resolved' % self.remote_field.model) ValueError: Related model 'auth.Group' cannot be resolved when running a test, and im not sure why this happen","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":116,"Q_Id":65950279,"Users Score":0,"Answer":"You can solve it removing the migrations files.","Q_Score":2,"Tags":"python,django,django-rest-framework","A_Id":72297270,"CreationDate":"2021-01-29T07:20:00.000","Title":"ValueError: Related model 'auth.Group' cannot be resolved when running django test","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Long story short, I need to call a python script from a Celery worker using subprocess. This script interacts with a REST API. I would like to avoid hard-coding the URLs and django reverse seems like a nice way to do that.\nIs there a way to use reverse outside of Django while avoiding the following error?\n\ndjango.core.exceptions.AppRegistryNotReady: Apps aren't loaded yet.\n\nI would prefer something with low-overhead.","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":101,"Q_Id":65959394,"Users Score":0,"Answer":"I am using a custom manager command to boot my django app from external scripts. It is like smashing a screw with a hammer, but the setup is fast and it takes care for pretty much everything.","Q_Score":1,"Tags":"python,django","A_Id":65959971,"CreationDate":"2021-01-29T17:49:00.000","Title":"Is there a way to use reverse outside of a Django App?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I am building a Django app that has a list of words. The app now tells the user the first word of the list via a speech function. Then the user can record an audio of a word he says. This word gets turned into a string in the front end. Now I want to compare the word from the user with the first string of a second list that has the same amount of characters as the first list. And this whole process should be repeated with all characters of the first list.\nCan I do this kind of loop in my views.py or would it work better in the frontend in javascript?","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":51,"Q_Id":65967351,"Users Score":0,"Answer":"I think yes, you can loop inside your views.py, inside your function make a loop and can compare your words.","Q_Score":0,"Tags":"javascript,python,django,frontend","A_Id":65967695,"CreationDate":"2021-01-30T11:18:00.000","Title":"django app for loop: views.py or frontend?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"My website has a button to check notifications as a drop down while still remaining on the same page. I would like to update the field unread of every notification from Trueto False of that user when the button is clicked, without having to change or update the page.\nI have been looking into Celery to solve this, but before digging to deep I would like to ask the community on what the best practice is to solve this type of functionality.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":32,"Q_Id":65971098,"Users Score":0,"Answer":"As long as the actual process of getting the notification does not take long you could just make it an ajax request. That would be the easiest way to do it.\nYou could also use Django channels and websockets on the front end but that is a bit more involved.\nJust to add to that, Celery is more suitable for long running background tasks or scheduled tasks with beat.","Q_Score":0,"Tags":"python,html,django,asynchronous,celery","A_Id":65971195,"CreationDate":"2021-01-30T17:33:00.000","Title":"Django update model instance asynchronously","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am using Selenium with Python and want to access the plain HTML source code before it is parsed and the DOM is modified by the browser. I do not want to use \"driver.page_source\" as it is giving me back the DOM after parsing and for example dynamically created elements are included. I know I could do a second request with for example requests but I am looking for a way to extract it without doing an additional request. Any ideas?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":55,"Q_Id":65973698,"Users Score":0,"Answer":"You can get the plain HTML source by using driver.get(f\"view-source:{url}\"). Then get the body of the source using driver.find_element_by_tag_name('body').text","Q_Score":0,"Tags":"python,selenium,selenium-chromedriver","A_Id":65974783,"CreationDate":"2021-01-30T22:17:00.000","Title":"How to get unparsed HTML source code with Python and Selenium","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have been trying for a while and have not been able to figure this out. It sounds like a simple problem and I'm sure it's just me...so sure you will be able to help.\nI basically want to only have an inline model display when I am in Create View (Creating a new entry) and NOT when I'm in Edit View (Editing an existing entry).","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":70,"Q_Id":65981585,"Users Score":0,"Answer":"Override the form_edit_rules and remove the field of the inline model.","Q_Score":0,"Tags":"python,flask,flask-admin","A_Id":70128367,"CreationDate":"2021-01-31T16:38:00.000","Title":"Flask Admin - Only include inline_models in Create View and NOT Edit View","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am using bulk_create to upload some data from excel to django db. Since the data is huge I had to use bulk_create instead of .create and .save. But the problem is that I need to show the user how many duplicate data has been found and has not been uploaded due to integrity error. Is there a way to get the number of errors or duplicate data while using bulk upload?","AnswerCount":1,"Available Count":1,"Score":-0.537049567,"is_accepted":false,"ViewCount":117,"Q_Id":65989590,"Users Score":-3,"Answer":"After, Reading data from csv file.\nFirst create a list before inserting data to system.\nThen convert that list to set after then again sort the data which is in set.\nHere , you gets every data exactly one time in sorted manner.","Q_Score":0,"Tags":"python,django,postgresql","A_Id":65990514,"CreationDate":"2021-02-01T08:48:00.000","Title":"is there a way to get the count of conflicts while using Django ...bulk_create(.., ignore_conflicts=True)?","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have deployed my Django website to PythonAnywhere last week and in the meantime, I made some changes to texts on the website. Now, I am trying to translate these pieces of text using the internationalization package in PythonAnywhere, but somehow it does not work.\nWhen I run python manage.py makemessages -l en, my django.po file is updated and I am able to add the translations, but once I run python manage.py compilemessages -l en, the English translations do not show up on the website.\nThe first day, I did get the translations to work, but now they don't anymore. What could be the cause of this? And could anybody help me find a way to solve the issue?\nThanks!","AnswerCount":1,"Available Count":1,"Score":0.6640367703,"is_accepted":false,"ViewCount":89,"Q_Id":65989971,"Users Score":4,"Answer":"Apparantely I was just being stupid, as I used some commands from my dev environment in PythonAnywhere...\nWhat solved my issues:\n\nDo not run python manage.py runserver in PythonAnywhere, as it will stop your site from updating these kinds of things.\nKeep an eye on fuzzy translations.","Q_Score":0,"Tags":"django,pythonanywhere,django-i18n","A_Id":66006149,"CreationDate":"2021-02-01T09:15:00.000","Title":"Internationalization does not work in pythonanywhere","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have Django model with Image field, but sometimes I don't need to actually upload file and store path to it, but I need to store only path. Especially url. I mean, I have web client, that receives both foreign urls like sun1-17.userapi.com and url of my own server, so sometimes I don't need to download but need to store url. Is it possible, to store url in ImageField, or I need to make CharField and save files via python? If its impossible, how do I save file in python3, having one, sent me via multipart?","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":254,"Q_Id":65994385,"Users Score":0,"Answer":"The URL field in the ImageField is ReadOnly, so you cannot write it. You should probably use in addition a URLField (better than a CharField) to save the URLs.\nYou can allow null values on both and use only the appropriate one according to your scenario.","Q_Score":0,"Tags":"python-3.x,django,imagefield","A_Id":65994666,"CreationDate":"2021-02-01T14:22:00.000","Title":"How to save URL to a Django ImageField","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"hello guys I'm trying to make another one to access my Django website I host it on my localhost by type\npython manage.py runserver 0.0.0.0:8000\nand i set the ALLOWED_HOSTS = ['*']\nwhen I trying to connect with my IP it's says refused to connect.\ncan someone help me","AnswerCount":1,"Available Count":1,"Score":-0.1973753202,"is_accepted":false,"ViewCount":78,"Q_Id":66032193,"Users Score":-1,"Answer":"you are only hosting your server in your local network therefore no-one outside of this network can access your server. To make them access it you would have to make it accessible over the internet for example via hosting it on aws or another cloud hoster.","Q_Score":0,"Tags":"python,django","A_Id":66032246,"CreationDate":"2021-02-03T17:00:00.000","Title":"how can i make someone on another network access my website with django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Is there anywhere in Firebase Auth where you can access public and private RSA keys for users? This would be really helpful for my project instead of having to generate some and store them securely","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":372,"Q_Id":66043713,"Users Score":1,"Answer":"There is nothing built into Firebase Authentication for storing key pairs for the user. You'll typically want to use a secondary data store (like Firebase's Realtime Database, or Cloud Firestore) for that and associate the keys with the user's UID.","Q_Score":0,"Tags":"python,ios,swift,firebase-authentication,rsa","A_Id":66049160,"CreationDate":"2021-02-04T10:25:00.000","Title":"Getting Public \/ Private Keys from Firebase Auth","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I\u00b4m using the python jira package to create and update issues in our self hosted Jira. Sometimes it happens, that issues are created without filling in all information. Because of that, customfields are empty after the creation.\nLater, people want to update some fields that were empty before, because now they have new information.\nThis is not working, I get the error:\n\"errorMessages\":[],\"errors\":{\"customfield_100233\":\"Field 'customfield_100233' cannot be set. It is not on the appropriate screen, or unknown.\"}}\nI guess this happens because the field is hidden and therefor can\u00b4t be updated, because it currently has an empty value.\nHas somebody an idea, how to solve this?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":83,"Q_Id":66049531,"Users Score":0,"Answer":"I found the solution.\nJira Dropdown Fields can\u00b4t be updated to None via a value, you have to set the id to -1.","Q_Score":0,"Tags":"jira-rest-api,python-jira","A_Id":66122501,"CreationDate":"2021-02-04T16:15:00.000","Title":"Populating hidden customfield via python jira","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Not using a virtual environment,on my command prompt, \"python manage.py command\" works but when I activate the virtual environment and use \"python manage.py command\" it just goes to the next line without doing anything","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":55,"Q_Id":66056082,"Users Score":0,"Answer":"Try installing the virtual environment again using this command :\npip3 install virtualenvwrapper-win\nthen make a new virtual env using:\nmkvirtualenv django_env_name\nthen install your django in this env using : pip install django\n(if env is not activated , then run this command : workon django_env_name)\nThen simply go to project dir and run command : python manage.py runserver","Q_Score":0,"Tags":"python,django,virtualenv","A_Id":66057684,"CreationDate":"2021-02-05T00:53:00.000","Title":"Why does my CMD prompt do nothing when I use the \"python manage.py runserver\" command after activating the virtual environment for my Django project","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a piece of functionality which is made to transfer funds to a connected Stripe account. In our account payouts setting configured to \u201cautomatic\u201d so I use source_transaction parameter to tie transfer with transaction to avoid potential problems with insufficient available balance. Now I need to transfer an amount of such value when I don\u2019t have any \u201cpending\u201d transactions to cover that size of amount and any attempts to perform a transfer ending up with this \u201cinsufficient balance\u201d exception.\nWhat I\u2019ve tried:\n\nto pass a source_transaction charge with \u201cavailable\u201d status (got \u201cinsufficient funds\u201d error)\nwandering through Stripe documentation and Stackoverflow posts to figure out the potential solution (still can\u2019t find one)\n\nWould be great if someone could help me to answer to these questions:\n\nRetrieving balance using API gives me a negative amount in the \u201cavailable\u201d section. But as far as I understand it\u2019s not important since I use an existing charge as source_transaction, right?\nConsidering things I mentioned above is there any way for me to perform a transfer without setting payouts to \u201cmanual\u201d configuration with accumulating funds in \u201cavailable\u201d balance?\n\nHad an idea to split this transfer onto a number of smaller ones, but that doesn\u2019t seem like a good one for me.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":226,"Q_Id":66060300,"Users Score":1,"Answer":"Retrieving balance using API gives me a negative amount in the\n\u201cavailable\u201d section. But as far as I understand it\u2019s not important\nsince I use an existing charge as source_transaction, right?\n\nYou can't transfer money you don't have or that is incoming \u2014 I'm a little confused because you say you \"don\u2019t have any \u201cpending\u201d transactions\" but then you also mention using source_transaction to point to a charge that is not available yet which is contradictory.\nMy guess here is that the payment you're using as source_transaction was already paid out and thus those funds aren't available to be connected to a transfer. Ultimately you can't transfer $x unless you have a payment of at least $x that you received recently and hasn't been settled and paid out to your bank account already.\nI tested on a Stripe account(creating a large negative available balance by issuing refunds, then creating a new charge and transferring it with source_transaction) and it does work as long as the charge is not already used for another transfer or was paid out already.","Q_Score":1,"Tags":"python,stripe-payments,payment-gateway","A_Id":66061085,"CreationDate":"2021-02-05T08:56:00.000","Title":"Stripe Transfers: create transfer without having appropriate charge to use as a source_transaction","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Im using AWS SageMaker Notebooks.\nWhat is the best way to execute notebook from sagemaker?\n\nMy idea is to have an S3 bucket.\nWhen a new file is putted there i want to execute a notebook that reads from S3 and puts the output in other bucket.\n\nThe only way i have from now is to start an S3 event, execute a lambda function that starts a sagemaker instance and execute the notebook. But is getting too much time to start and it doesnt work yet for me with a big notebook.\nMaybe is better to export the notebook and execute it from another place in aws (in order to be faster), but i dont know where.\nThanks in advance","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":96,"Q_Id":66061721,"Users Score":0,"Answer":"I have limited experience, but..If you are talking about training jobs, the only other way to launch one is to create you own container, push to ECR and launch directly the training job without dealing with notebooks. I am working on a similar project where an S3 upload triggers a lambda function which start a container (it's not sagemaker but the concept is more or less the same). The problem with this approach is that however AWS takes time to launch an instance, minutes I would say. Another approach could be to have a permanent running endpoint and trigger in some way the elaboration.","Q_Score":0,"Tags":"python,amazon-web-services,amazon-s3,aws-lambda,amazon-sagemaker","A_Id":66139522,"CreationDate":"2021-02-05T10:37:00.000","Title":"In AWS, Execute notebook from sagemaker","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a task which requires downloading the data from \"Who has seen this view\" from multiple dashboards each week, to then prepare a report on weekly activity.\nI am trying to find a way to automate this using Python to avoid having to manually download each week, but I can't find a way to do this programmatically without being the organisations administrator (not, I own the dashboards).\nMy thoughts were to use a web scraper, but I am encountering a hurdle with the companies Okta SSO also.\nIs there a way that I can use my open browser (or something that already contains my SSO credentials) to access this data and then download as CSV? I hope this makes sense, appreciate any help you can give.","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":258,"Q_Id":66147814,"Users Score":0,"Answer":"Had me the same problem week ago.\nI tried to make it in a lot of ways with python and API I think that for now there's no way to grab it with python for this moment without using any scraping tools...\nIn postgres database you might find table view stats and here is everything and\neven more which is visible in 'who seen this' in tableau.","Q_Score":0,"Tags":"python,web-scraping,tableau-api","A_Id":71228672,"CreationDate":"2021-02-11T02:06:00.000","Title":"Tableau \"Who has seen this view\" data automation","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to fetch Cloud watch logs for different lambda fucntions and trace for a pertucular string just like insights becasue we have some set of lambda functions and applications which need to run for a perticular job. Many time some of the services stop runnig due to some issues so i want to trace them with perticulart string and get error report where it got errored.\nEg : Lambda1 will call Lambda2 and Lambda2 will add entry in DynamoDB.\nNow i want to create a lambda function which will trace lambda 1 and lambda 2 give me report if both lambdas run succesfully for a perticular JOBID.\nSo far i have tryed to use AWS Cloud watch as a trigger but it is giving log only for 1 perticular function but not for all functions.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":38,"Q_Id":66151320,"Users Score":0,"Answer":"There is a Python library called Boto3 which helped me to resolve this issue.The Lambda function should have a peoper read access to fetch the logs or the corrosponding lambda fucntions we are tracking.","Q_Score":0,"Tags":"java,python,amazon-web-services,aws-lambda","A_Id":71016126,"CreationDate":"2021-02-11T08:40:00.000","Title":"Get Cloud Watch logs from differnet lambda functions or applications","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a glue job that parses csv file uploaded to S3 and persist data to rds instance. It was working fine. But one day there occurred an error\n\nAn error occurred while calling\nz:com.amazonaws.services.glue.util.Job.commit. Not initialized.\n\nHow can I resolve this? I haven't made any changes in the script or anywhere. The python version used is 3, glue version 2. Somebody please help.","AnswerCount":2,"Available Count":1,"Score":0.0996679946,"is_accepted":false,"ViewCount":668,"Q_Id":66153577,"Users Score":1,"Answer":"Resetting the Job Bookmark seemed to have fixed this for me. In the Console, select the Glue Job -> Action -> Reset job bookmark.","Q_Score":1,"Tags":"python-3.x,amazon-s3,amazon-rds,aws-glue","A_Id":69762043,"CreationDate":"2021-02-11T11:09:00.000","Title":"An error occurred while calling z:com.amazonaws.services.glue.util.Job.commit. Not initialized","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have just started with AWS Serverless and I am having some doubts. Here is my use case and what I have tried and done so far:\nUse Case:\nMake multiple GET and POST requests to an API using HTTP API(not REST API) in AWS using lambda function.\nWhat I have done:\nCreated an HTTP API. Using $default stage currently. Created a POST route. Created a function(in python)  with POST request. Attached the function integration with my POST route. I am successfully able to call this route using my frontend code(written in vanilla js). Using the data that I receive from frontend, I call an external API using it's URL in my python lambda function.\nProblem:\nI want to make a GET request to another API using it's URL. Will I have to make another lambda function to do so?\nAny help will be great. Pardon me if I have asked a silly question. It's just that I am new to AWS and HTTP API. Thank You for your time!","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":495,"Q_Id":66167053,"Users Score":1,"Answer":"Based on the comments.\nA single lambda function can be used for both POST and GET requests. For this, you can have either two routes, one for POST and one for GET. Both can be integrated with the same function.\nAlternatively, you can have one ANY route to route everything into a single function.\nThe function can have same file and same handler. However, its logic must be probably modified to handle POST and GET events differently, depending on your use-case.","Q_Score":1,"Tags":"python,amazon-web-services,http,aws-lambda,aws-http-api","A_Id":66167317,"CreationDate":"2021-02-12T06:02:00.000","Title":"How to make multiple HTTP method calls in AWS using HTTP API?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am writing a web app with Django in which I have to share some data with another python socket server running in parallel.\nI have tried using a common python file to store global variable.\nbut since those server are two different processes it is not working.\n(I am not interested in using any database)","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":118,"Q_Id":66167177,"Users Score":1,"Answer":"You could use main file that starts up both services either with the libraries threading or multiprocessing and just communicate with normal python data types.\nIf these two services have to be separate programs then you would need to design an API for them to communicate and use sockets or some library build on-top of sockets to communicate.","Q_Score":1,"Tags":"python,django,memory,python-sockets,shared-variable","A_Id":66168291,"CreationDate":"2021-02-12T06:17:00.000","Title":"how to share data between django server and python websocket server","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have recently started web development using Django. What confuses me the most that, why do we create tests for scenarios like \"Check if password is provided\", \"Check if password is correct\", \"Check if a password is at least 8 characters long\" etc. when we can do the same thing using validators in Django. Is there a specific advantage of using tests over validators? Thanks.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":31,"Q_Id":66167740,"Users Score":1,"Answer":"Try writing a big project and manually test all the functionalities to make sure there are NO bugs and then write tests for the entire thing and I guarantee you will find at least 5","Q_Score":0,"Tags":"python-3.x,django,unit-testing,django-rest-framework","A_Id":66168477,"CreationDate":"2021-02-12T07:20:00.000","Title":"Unit\/Functional Tests Vs Validators","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am following a tutorial for Django and at some point, it says to run .\/manage.py migrate and says that if I get an error, I should fix it.\nI get an error but when I search for it I can't find specifically .\/manage.py but I keep finding mixes with that and python manage.py.\nBut when I run the code python3 manage.py everything works fine and I don't get errors.\nSo are .\/manage.py and python(3) manage.py different or not?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":119,"Q_Id":66184235,"Users Score":2,"Answer":"No this is the same.\nError might be because of your system configuration, for example when system does not know how to run python script, or when script has not \"executable\" permission set (chmod a+x manage.py might fix this).","Q_Score":1,"Tags":"python,django","A_Id":66184264,"CreationDate":"2021-02-13T10:47:00.000","Title":"Django: What is the difference between .\/manage.py [...] and python manage.py [...]","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Thanks for your time.\nBasically, what I'm trying to do is to set a object from a database list (.csv) and if i get an ValueError I would like to set that field value and keep adding data\n\nValueError: Field 'age' expected a number but got 'M'\n\nI'm quite sure that's a doc for this, but I've been reading for some time and hasn't found.","AnswerCount":2,"Available Count":2,"Score":1.2,"is_accepted":true,"ViewCount":45,"Q_Id":66191418,"Users Score":1,"Answer":"How about filtering the data once you receive it? For example lets say age field expects an Integer, and before you save it you could check if the data is an Integer. But I also think the most efficient way is using try except.","Q_Score":0,"Tags":"python,python-3.x,django,django-models,django-rest-framework","A_Id":66193705,"CreationDate":"2021-02-14T00:46:00.000","Title":"Django how to change a vallue of a field that received error","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Thanks for your time.\nBasically, what I'm trying to do is to set a object from a database list (.csv) and if i get an ValueError I would like to set that field value and keep adding data\n\nValueError: Field 'age' expected a number but got 'M'\n\nI'm quite sure that's a doc for this, but I've been reading for some time and hasn't found.","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":45,"Q_Id":66191418,"Users Score":0,"Answer":"Using a simple 'try', 'except' block should work where you have a default value to use in 'except' before saving.","Q_Score":0,"Tags":"python,python-3.x,django,django-models,django-rest-framework","A_Id":66191475,"CreationDate":"2021-02-14T00:46:00.000","Title":"Django how to change a vallue of a field that received error","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"My configuration (very basic):\n\n\n        settings.py\n        AWS_S3_REGION_NAME = 'eu-west-3'\n        AWS_S3_FILE_OVERWRITE = False\n        # S3_USE_SIGV4 = True # if used, nothing changes\n        # AWS_S3_SIGNATURE_VERSION = \"s3v4\" # if used, nothing changes\n        AWS_ACCESS_KEY_ID = \"xxx\"\n        AWS_SECRET_ACCESS_KEY = \"xxx\"\n        AWS_STORAGE_BUCKET_NAME = 'xxx'\n        # AWS_S3_CUSTOM_DOMAIN = f'{AWS_STORAGE_BUCKET_NAME}.s3.amazonaws.com'  # if used, no pre-signed urls\n        AWS_DEFAULT_ACL = 'private'\n        AWS_S3_OBJECT_PARAMETERS = {'CacheControl': 'max-age=86400'}\n        AWS_LOCATION = 'xxx'\n        DEFAULT_FILE_STORAGE = 'storages.backends.s3boto3.S3Boto3Storage'\n        \n        INSTALLED_APPS = [\n           ...,\n           'storages'\n        ]\n        \n        models.py\n        class ProcessStep(models.Model):\n            icon = models.FileField(upload_to=\"photos\/process_icons\/\")\n\n\nWhat I get:\n\nPre-signed url is generated (both in icon.url and automatically on admin page)\nPre-signed url response status code = 403 (Forbidden)\nIf opened, SignatureDoesNotMatch error. With text: The request signature we calculated does not match the signature you provided. Check your key and signing method.\n\nTried:\n\nchanging access keys (both root and IAM)\nchanging bucket region\ncreating separate storage object for icon field (same error SignatureDoesNotMatch)\nchanging django-storages package version (currently using the latest 1.11.1)\n\nOpinion:\n\nboto3 client generate_presigned_url returns url with invalid signature\n\nQuestions:\n\nWhat should I do?\nWhy do I get the error?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":313,"Q_Id":66200605,"Users Score":-2,"Answer":"Patience is a virtue!\nOne might wait for 1 day for everything to work","Q_Score":0,"Tags":"django,amazon-s3,acl,python-django-storages","A_Id":66224777,"CreationDate":"2021-02-14T22:09:00.000","Title":"django storages AWS S3 SigVer4: SignatureDoesNotMatch","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Is it possible to upload and manipulate a photo in the browser with GitHub-pages? The photo doesn't need to be stored else than just for that session.\nPS. I'm new to this area and I am using python to manipulate the photo.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":25,"Q_Id":66200998,"Users Score":1,"Answer":"GitHub pages allows users to create static HTML sites. This means you have no control over the server which hosts the HTML files - it is essentially a file server.\nEven if you did have full control over the server (e.g. if you hosted your own website), it would not be possible to allow the client to run Python code in the browser since the browser only interprets JavaScript.\nTherefore the most easy solution is to re-write your code in JavaScript.\nFailing this, you could offer a download link to your Python script, and have users trust you enough to run it on their computer.","Q_Score":1,"Tags":"python,github-pages","A_Id":66201055,"CreationDate":"2021-02-14T23:08:00.000","Title":"Can I manipulate an image in the browser with github pages?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to build a simple project where I need to access a public website, input a single string of text, and get the output from the result of \"submitting\" the string of text.\nI know this can be done with Selenium but I was wondering if it's possible to do this silently. The webpage does not have an API, it's just a database where you input a single text of string, query the result and display it.\nIs this possible to do at all with Python?, again hopefully silently where when this runs it won't take over the monitor and can potentially and eventually be done on an arduino?\nThanks in advance,","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":31,"Q_Id":66217790,"Users Score":0,"Answer":"Resolution:\nI was able to do this with Selenium using headless (previously: phantom) options.\nWorks like a charm, no UI being invaded. Querying what I need takes 2.5 seconds to get results.","Q_Score":0,"Tags":"python,python-3.x,web-scraping,automation","A_Id":66220715,"CreationDate":"2021-02-16T02:03:00.000","Title":"Py - Possible to Input Text into Web page and Extract Result Silently?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"When using Azure Bobs the path separator is a slash (\/). As Blobs are flat there are no actual directories. However, often there are prefixes that should be treated as directories.\nWhat are the right methods to deal with such paths? os.path is os dependent and will assume backslashes e.g. on Windows machines.\nSimply using str.split('\/') and similar does not feel right, as I would like to have the features from os.path to combine paths and I don't want to care about trailing and leading slashes and so on.","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":94,"Q_Id":66222401,"Users Score":0,"Answer":"I normally do use str.split('\/'). Don't know if its the \"right\" method but it works fine for me. Later on I can use os.path.join() to combine the resulting strings again (when needed).","Q_Score":0,"Tags":"python,azure,path,blob","A_Id":66222454,"CreationDate":"2021-02-16T10:10:00.000","Title":"What are correct python path splitting methods for use with Azure Blob","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":1,"Web Development":1},{"Question":"I'd like to use the Google Error Reporting Client library (from google.cloud import error_reporting).\nBasically, you instantiate a client:\nclient = error_reporting.Client(service=\"my_script\", version=\"my_version\")\nand then you can raise error using:\n\nclient.report(\"my message\") or\nclient.report_exception() when an exception is caught\n\nI have 3 environments (prod, staging and dev). They are each setup on their own Kubernetes cluster (with their own namespace). When I look at Google Cloud Error Reporting dashboard, I would to quickly locate on which environment and which class\/script the error was raised.\nUsing service is a natural choice to describe the class\/script but what about the environment?\nWhat is the best practice? Should I use the version to store that, e.g. version=\"staging_0.0.2\"?\nMany thanks in advance\nCheers,\nLamp'","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":123,"Q_Id":66238791,"Users Score":0,"Answer":"I think the Error Reporting service is deficient (see comment above).\nSince you're using Kubernetes, how about naming your Error Reporting services to reflect Kubernetes Service names: ${service}.${namespace}.svc.cluster.local?\nYou could|should replace the internal cluster.local domain part with some unique external specifier (FQDN) to your cluster: $[service}.${namespace}.${cluster}\n\nNOTE These needn't be actual Kubernetes Services but some way for you to uniquely identify the thing within a Kubernetes cluster my_script.errorreporting.${namespace}.${cluster}","Q_Score":0,"Tags":"python,kubernetes,error-reporting,google-cloud-logging,google-cloud-error-reporting","A_Id":66374446,"CreationDate":"2021-02-17T09:06:00.000","Title":"Google Cloud - Error Reporting Client Libraries","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"Good day,\nWhile downloading my Jupyter notebook ipynb file , the saving format as default changes to PDF Adobe Acrobat and this makes the file unreadable.\nI have tried changing the name of the file but still this doesn\u00b4t work...\nThe name for the file would be : abcdefg.ipynb and the type of doc \"Adobe Acrobat Document\".\nI hope you can help me, thank you very much","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":443,"Q_Id":66239161,"Users Score":0,"Answer":"In Jupyter Lab you should be able to save your notebook by clicking on File > Save Notebook As... If you prefer to save your notebook in a different format than .ipynb, click on File > Export Notebook As...","Q_Score":0,"Tags":"python,python-3.x,jupyter-notebook,anaconda,jupyter","A_Id":66239401,"CreationDate":"2021-02-17T09:31:00.000","Title":"Changing format from Adobe Acrobat pdf to Jupyter Notebook ipynb","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"Good day,\nWhile downloading my Jupyter notebook ipynb file , the saving format as default changes to PDF Adobe Acrobat and this makes the file unreadable.\nI have tried changing the name of the file but still this doesn\u00b4t work...\nThe name for the file would be : abcdefg.ipynb and the type of doc \"Adobe Acrobat Document\".\nI hope you can help me, thank you very much","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":443,"Q_Id":66239161,"Users Score":0,"Answer":"I might be misunderstanding it, but if you want to change a file's extension and you're on windows (8 or 10):\n\nWhen saving the file, you should be able to set your own extension if you can set the \"save as type\" to 'All'\nTo rename an existing file's extension, on Explorer go to \"View\" and make sure \"File name extensions\" is checked, then rename the file normally\n\nNote that if the file was an actual PDF document, you can't convert it just by renaming the extension. (The same also applies to most other file types)","Q_Score":0,"Tags":"python,python-3.x,jupyter-notebook,anaconda,jupyter","A_Id":66239633,"CreationDate":"2021-02-17T09:31:00.000","Title":"Changing format from Adobe Acrobat pdf to Jupyter Notebook ipynb","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to run a project in atom using a virtual environment and I keep getting an error in regards to the manage.py file.  File \"manage.py\", line 17 ) from exc ^ SyntaxError: invalid syntax\nI've searched for solutions all over and most people seem to resolve it by using python3 manage.py runserver in the virtual environment instead of python manage.py runserver but that did not work for me. Any suggestions on this?","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":545,"Q_Id":66252213,"Users Score":0,"Answer":"This is happening because you have tried to run your Django app but you have not activated the virtual environment which you installed Django in to.\ntry to activate your virtual env by making sure you are in the directory of your django app in terminal\/command prompt and type:\nLinux:\nsource nameofenv\/bin\/activate\nWindows:\nnameofenv\\Scripts\\activate","Q_Score":0,"Tags":"python,django,atom-editor,python-venv","A_Id":66645558,"CreationDate":"2021-02-18T01:14:00.000","Title":"Django issue running manage.py on Mac","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Gist of the problem is, I'm not developing an SPA, I'm developing a mobile app, with a backend in Flask. FlaskSecurityToo has provided me with some great features, and I'm now trying to use their password reset functionality. Here's my gripe.\nI want to have the email send a deeplink, which users on the mobile app will click and get sent to the password reset form on the app. There's no UI view for this. But FlaskSecurityToo has logic that requires the server is first hit to validate the token, then redirects them to whatever has REDIRECT_HOST set. Which works great when I set the REDIRECT_BEHAVIOR as spa\nIs there a way to tell Flask \"Hey, don't worry about the need to validate the token from the initially provided password reset email, let the UI\/Mobile app make the call to determine that whenever they want\" from the provided configuration? Thus, relaxing the constraint on the host name \/ details of the url for a password reset, as long as a token exists? Or is this abusing some of the principles of FlaskSecurity that I don't grasp yet?\nMy current plan is to let it open a mobile browser, and hopefully the redirect forces the app open? I have little experience with deeplinks, so I'm testing and probing things as I learn.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":266,"Q_Id":66255958,"Users Score":1,"Answer":"You are correct about current FS behavior - here is a suggestion (not clean but it would be interesting if it was all you need) - the POST \/reset\/ endpoint is stand-alone - you don't have to call GET first - the POST will ALSO verify the token is valid. So the issue becomes how to generate the link for the email that has what you want. FS currently doesn't allow to configure this (that could be an enhancement) - but in 4.0.0 you can easily replace the MailUtil class and have your implementation of send_mail look for template='reset_instructions'. Now - at this point the email has already been rendered - so you would have to parse the body and rewrite the url (keeping the token intact). Ugly but doable - is this sufficient? If so I can see a few simple improvements in FS to allow more flexibility around emails.","Q_Score":0,"Tags":"python,redirect,single-page-application,deep-linking,flask-security","A_Id":66263733,"CreationDate":"2021-02-18T08:11:00.000","Title":"How to set password reset url to a mobile deeplink using Flask Security?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I create a Todo web application in Django and i deploy it on Heroku. I want to know how can i push the notification in my browser for upcoming task.Thanks in advance.","AnswerCount":1,"Available Count":1,"Score":0.3799489623,"is_accepted":false,"ViewCount":823,"Q_Id":66259563,"Users Score":2,"Answer":"You should use websockets and async functionality of Django to be able to push realtime notifications as they occur.\nBasic http protocol does not give you such functionality.","Q_Score":1,"Tags":"python,django,heroku","A_Id":66259742,"CreationDate":"2021-02-18T12:02:00.000","Title":"How to push the notification on web browser using django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm trying to create a chatbot using gupshup, but I don't have much experience with JS, and for my implementation, it will be easier to code in python, but I'm not finding any material about it.\nIs it possible to develop a ChatBot with python using GupShup?\nThanks","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":199,"Q_Id":66264967,"Users Score":0,"Answer":"Right Now Gupshup Only Provides JS Language Support, but we are looking to have python as a development language also for chatbots.","Q_Score":1,"Tags":"python,gupshup","A_Id":67054515,"CreationDate":"2021-02-18T17:22:00.000","Title":"Using python to create a ChatBot in GupShup Bot Builder","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"In my template, I want to show the join date of a user, so I am using {{ user.date_joined }} which shows the date and time (in local time zone - same as what is shown in the admin panel). To just show the date, I use {{ user.date_joined.date }}, but it seems to be converting the date and time to UTC before showing the date (I am in EST\/EDT - I never remember which is which).\nFor example:\n{{ user.date_joined }} ==> Feb. 18, 2021, 7 p.m.\n{{ user.date_joined.date }} ==> Feb. 19, 2021\nIs there a way for me to change this so that it shows the same date as the full date and time?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":153,"Q_Id":66272633,"Users Score":1,"Answer":"Found a solution\/workaround for anyone else with a similar question.\nInstead of using {{ user.date_joined.date }} like a traditional datetime object, I used {{ user.date_joined|date }}","Q_Score":0,"Tags":"python,python-3.x,django,django-templates","A_Id":66272941,"CreationDate":"2021-02-19T06:19:00.000","Title":"Django User.date_joined.date using UTC time?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"So I am using AWS SAM to build and deploy some function to AWS Lambda.\nBecause of my slow connection speed uploading functions is very slow, so I decided to create a Layer with requirements in it. So the next time when I try to deploy function I will not have to upload all 50 mb of requirements, and I can just use already uploaded layer.\nProblem is that I could not find any parameter which lets me to just ignore requirements file and just deploy the source code.\nIs it even possible?","AnswerCount":2,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":746,"Q_Id":66280432,"Users Score":0,"Answer":"I hope I understand your question correctly, but if you'd like to deploy a lambda without any dependencies you can try two things:\n\nnot running sam build before running sam deploy\nhaving an empty requirements.txt file. Then sam build simply does not include any dependencies for that lambda function.\n\nOf course here I assume the layer is already present in AWS and is not included in the same template. If they are defined in the same template, you'd have to split them into two stacks. One with the layer which can be deployed once and one with the lambda referencing that layer.\nUnfortunately sam build  has no flag to ignore requirements.txt as far as I know, since the core purpose of the command is to build dependencies.","Q_Score":0,"Tags":"python,amazon-web-services,aws-lambda,requirements.txt,sam","A_Id":66290011,"CreationDate":"2021-02-19T15:30:00.000","Title":"make sam to IGNORE requirements.txt","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am relatively new to oop and had a quick question about the best way to approach coding a certain type of calculation. I'm curious if there's an established design pattern to approach this sort of problem.\nConsider a chemical process flow where you convert materials (a,b) with attributes such as temperature, pressure, flow rate, etc. into a final product c. To get there, I need unit operations D,E,F... each with its own set of attributes (cost, size, etc.). I would only need information flow in one direction as closed loops will probably increase the complexity (if not, I would really appreciate insight into how closed loops would work).\na,b --> D --> E --> F --> c\nUltimately I would like to be able to do a system cost analysis, where I would sum up the cost attributes of D,E,F.\nMy current thought process to approach this is to define a \"materials\" object, then have D inherit materials, E inherit D... c inherit F then lastly a \"system\" object inherit c to analyze the system variables. Since I would like to be able to swap out D,E,F for say G,H,I, there also needs to be code for conditional inheritance where D must be able to accept inputs a,b (based on defined attributes) and E be able to inherit D for the same reason. One of the things I'm unsure of is how object c would be able to understand how to sum up attributes of all the inherited objects (probably based on some consistent naming convention of objects\/attributes?).\nSorry for the somewhat lengthy question - if you are aware of AspenPlus, I'm looking to replicate a smaller scale version of this (ie no solvers) in Python. Thank you for reading through this!","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":71,"Q_Id":66287297,"Users Score":0,"Answer":"I would argue that in your case functional programming is actually more suited than OOP since what it boils down to is a set of operations process on \"blank\" materials that results in a new material, well actually the same with different properties.\nIf I was restrained to OOP I would create different classes :\n\nMaterialType which is basically a string or enum (of a, b & c)\nExternalProperties for temperature\/pressure, etc.\nMaterial which contains the Material_Type and various properties\/functions aimed at transforming the material type so for instance it could contain a transform function with an unbounded list of ExternalProperties\nLaboratory to do all the operations\n\nHere object c would be the MaterialType which the Material can calculate without inheriting of everything else.\nIt's hard to propose an accurate concretisation since your example is very abstract but I think inheritance brings more problems than solutions here.","Q_Score":1,"Tags":"python,oop,design-patterns","A_Id":66299410,"CreationDate":"2021-02-20T02:07:00.000","Title":"Python OOP Design Pattern for Calculation Flows","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am currently writing a Python server to deploy on AWS Lambda. I want to use the firebase-admin package to send notifications with FCM and read data from cloud firestore. however when I try deploying my function to AWS Lambda with the .zip file archives, I get this error on execution:\n[ERROR] Runtime.ImportModuleError: Unable to import module 'lambda_function': Failed to import the Cloud Firestore library for Python. Make sure to install the \"google-cloud-firestore\" module.\nI installed the module with this: pip install --target . firebase-admin into a folder, added my code files (to the root as instructed), zipped it recursively and uploaded it with the aws-cli, I can clearly see that there is a google-cloud-firestore folder inside the .zip so i'm not sure whats going on. any help is appreciated!","AnswerCount":4,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":1208,"Q_Id":66291208,"Users Score":0,"Answer":"From the look of it you have bundled your code correctly and deployed successfully. The error occurs because Firestore relies on a C-based implementation of GRPC. By default this does not work on AWS Lambda. I'm currently creating a work-around and will update this post with my results.","Q_Score":0,"Tags":"python,amazon-web-services,firebase,aws-lambda,firebase-admin","A_Id":66393235,"CreationDate":"2021-02-20T11:56:00.000","Title":"Firebase-Admin with AWS Lambda Python","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have two different django projects in same a computer and i run both the project by giving command python manage.py runserver 8000 and python manage.py runserver 8001. They both run without any error but when i open them in a same chrome browser in two different tabs and trying to login in both projects they are reset and return to login page again.\nI am trying to say that when i login in first project it login successfully and then i login in second project it also login successfully but the first project comes to reset and return in login page again. it seems that browser only allows only one login at a time.\nis there anything about django session either in Cookies session or Authentication Session?\nand do i have to add or change something in settings.py file?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":162,"Q_Id":66294489,"Users Score":0,"Answer":"What you should know is that when you login, the session cookie is stored in browser which is then sent in every request to the server. The cookie is set for a domain on which you are logging in which in your case is localhost.\nSo because in both of your application the domain name is same \"localhost\" and hence the cookie is getting overridden by the next project you start.\nTo resolve this you can either run one your project on 127.0.0.1:8000 and the other one on localhost:8001.\nThis way the cookie wont get overridden because the domain names are different now.\nYou can also use your systems ip instead of localhost to run one of your project.\nYou can view what cookie is being set and on what domain by visiting inspect section on chrome and then navigating to application section there -> cookies -> yourdomain","Q_Score":0,"Tags":"python,django,django-authentication,django-settings,django-sessions","A_Id":66294744,"CreationDate":"2021-02-20T17:24:00.000","Title":"Authentication login problem in running two django projects at the same time in same PC machine","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am using django-email-verification for sending verification link to email of the user but it tales time to send email , i want to send mail with celery for the same to speed it up , please guide me how can i add celery configs?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":127,"Q_Id":66306295,"Users Score":0,"Answer":"Celery isn't going to make this run any faster. What Celery will do for you is make the task asynchronous.","Q_Score":0,"Tags":"python,django,email,celery,email-verification","A_Id":66306824,"CreationDate":"2021-02-21T19:35:00.000","Title":"send email verfication link using django-email-verification with celery","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a Flask server that will fetch keys from Redis. How would I maintain a list of already deleted keys? Every time I delete a key, it needs to be added to this list within Redis. Every time I try to check for a key in the cache, if it cannot be found I want to check if it is already deleted. This would allow me to distinguish in my API between requests for unknown keys and requests for deleted keys.\nI am using the standard redis python library.","AnswerCount":2,"Available Count":1,"Score":0.0996679946,"is_accepted":false,"ViewCount":261,"Q_Id":66321777,"Users Score":1,"Answer":"Instead of deleting the key, you can set the to-be-deleted key with a special value, say, empty string.\nWhen you get key-value pair from Redis, you can check if the value equals to the special value. If it does, then the key has been deleted. Otherwise, serve the client with the value.\nAlso, as @Mihai mentioned, you might also need to set a TTL with those deleted keys to avoid Out-Of-Memory problem.","Q_Score":0,"Tags":"python,redis","A_Id":66326358,"CreationDate":"2021-02-22T18:57:00.000","Title":"How would you maintain a list of previously deleted keys in Redis?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"when i do command prompt on windows for the django version it doesn't come up even though its successful installed on pycharm help please.\ni am new to python as well.\nwhen i go on to command prompt on windows to check django version after adding python -m django --version\ni get this result:\n\nC:\\Users\\User\\AppData\\Local\\Programs\\Python\\Python39\\python.exe: No\nmodule named django\n\ni am using pycharm as IDE and it seems when i did install django on pycharm it was successful should i worry about the django version coming up on command prompt or not.\nI am using windows 10 to do my coding for Uni so its not on any other OS  :)","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":162,"Q_Id":66336320,"Users Score":0,"Answer":"try this command after reopening your cmd\ndjango-admin --version","Q_Score":0,"Tags":"python,django,pycharm,command-prompt","A_Id":66338995,"CreationDate":"2021-02-23T15:42:00.000","Title":"when i do command prompt for the django version it doesnt come up even though its successful on pycharm help please","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have set up a telegram bot to fetch data from my mysql db.\nIts running well until like after 1 day..And It just cannot connect:\nFile \"\/usr\/local\/lib\/python3.8\/site-packages\/mysql\/connector\/connection.py\", line 809, in cursor\nraise errors.OperationalError(\"MySQL Connection not available.\")\nI have checked that the script is perfect and I can even run it perfectly on the server, while at the same time if it run through the bot , it throws the above errors.\nEven so ,it will resume to normal after I reboot the apache server. Can anyone help??? Thanks first.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":349,"Q_Id":66344843,"Users Score":0,"Answer":"It turns out that its not related to my bot. But sql connection called by my django server (not orm, but mysql.connector.)\nI didn't close the connection properly (I closed cursor). After I closed the connection conn.close()immediately after the fetch, the problem vanished.\nYet I still dun understand why it doesn't cause any problem when i run the script manually. I feel its something about connection time. I am no expert of mysql, in fact I am just a amateur of programming. see anyone can give further solution. (I have changed the title in order to make my problem more relevant.)","Q_Score":0,"Tags":"python,mysql,telegram-bot","A_Id":66410549,"CreationDate":"2021-02-24T04:44:00.000","Title":"OperationalError(\"MySQL Connection not available.\")","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"When I ran $ snakeviz code_profile.prof from CLI :\nsnakeviz web server started on 127.0.0.1:8080; enter Ctrl-C to exit http:\/\/127.0.0.1:8080\/snakeviz\/%2Fhome%2Fatmadeep%2FProjects%2FtrafficAI-master%2Fprofile_info-60.prof snakeviz: error: no web browser found: could not locate runnable browser\nAfter some search, I tried running it in server only mode and got this error using  --server argument :\nTraceback (most recent call last): File \"\/home\/atmadeep\/anaconda3\/envs\/work-env\/lib\/python3.7\/site-packages\/tornado\/web.py\", line 1681, in _execute result = self.prepare() File \"\/home\/atmadeep\/anaconda3\/envs\/work-env\/lib\/python3.7\/site-packages\/tornado\/web.py\", line 2430, in prepare raise HTTPError(self._status_code) tornado.web.HTTPError: HTTP 404: Not Found \nWhat might be the problem here? Is the profile generated corrupt or am I not understanding something related to snakeviz.\nNote: I'm not running this code in jupyter-notebook.","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":734,"Q_Id":66366029,"Users Score":0,"Answer":"So, here's the solution. from the console, run:\n$python -m snakeviz profile.prof --server\nWhen running from console, snakeviz needs to be called as shown above.","Q_Score":0,"Tags":"python,snakeviz","A_Id":66499234,"CreationDate":"2021-02-25T09:42:00.000","Title":"Can't run snakeviz. What might be the problem here?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"When I ran $ snakeviz code_profile.prof from CLI :\nsnakeviz web server started on 127.0.0.1:8080; enter Ctrl-C to exit http:\/\/127.0.0.1:8080\/snakeviz\/%2Fhome%2Fatmadeep%2FProjects%2FtrafficAI-master%2Fprofile_info-60.prof snakeviz: error: no web browser found: could not locate runnable browser\nAfter some search, I tried running it in server only mode and got this error using  --server argument :\nTraceback (most recent call last): File \"\/home\/atmadeep\/anaconda3\/envs\/work-env\/lib\/python3.7\/site-packages\/tornado\/web.py\", line 1681, in _execute result = self.prepare() File \"\/home\/atmadeep\/anaconda3\/envs\/work-env\/lib\/python3.7\/site-packages\/tornado\/web.py\", line 2430, in prepare raise HTTPError(self._status_code) tornado.web.HTTPError: HTTP 404: Not Found \nWhat might be the problem here? Is the profile generated corrupt or am I not understanding something related to snakeviz.\nNote: I'm not running this code in jupyter-notebook.","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":734,"Q_Id":66366029,"Users Score":0,"Answer":"on a server you have to add --server argument and to click on the link in the terminal. Putting a threshold at 1\/100 helps also.","Q_Score":0,"Tags":"python,snakeviz","A_Id":71391855,"CreationDate":"2021-02-25T09:42:00.000","Title":"Can't run snakeviz. What might be the problem here?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I made an API for my AI model but I would like to not have any down time when I update the model. I search a way to load in background and once it's loaded I switch the old model with the new. I tried passing values between sub process but doesn't work well. Do you have any idea how can I do that ?","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":44,"Q_Id":66370017,"Users Score":0,"Answer":"You can place the serialized model in a raw storage, like an S3 bucket if you're on AWS. In S3's case, you can use bucket versioning which might prove helpful. Then setup some sort of trigger. You can definitely get creative here, and I've thought about this a lot. In practice, the best options I've tried are:\n\nSet up an endpoint that when called will go open the new model at whatever location you store it at. Set up a webhook on the storage\/S3 bucket that will send a quick automated call to the given endpoint and auto-load that new item\nSame thing as #1, but instead you just manually load it. In both cases you'll really want some security on that endpoint or anyone that finds your site can just absolutely abuse your stack.\nSet a timer at startup that calls a given function nightly, internally running within the application itself. The function is invoked and then goes and reloads.\n\nCould be other ideas I'm not smart enough (yet!) to use, just trying to start some dialogue.","Q_Score":0,"Tags":"python,fastapi","A_Id":66394917,"CreationDate":"2021-02-25T14:02:00.000","Title":"Load new model in background","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I was able to convert a .py file to and exe file,\nhowever when I try to send it via Gmail, it detects as a virus.\nAlso, when trying to transfer the file on a USB flash drive, the computer says it's a virus.\nAny ideas on how to fix this?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":118,"Q_Id":66370571,"Users Score":0,"Answer":"Apart from getting your exe signed (not really a viable option unless you're working on a big and important project) or writing the program in a natively compiled programming language like C, no, there is no way to avoid the detection since the Py2Exe converter you're using embeds the Python interpreter and all needed dependencies into the binary, which is a technique often used by viruses.\nEDIT FOR:\nI didn't actually get the fact that Gmail is the thing blocking the exe, not your AV. Well, as said by other comments, Gmail blocks certain files by default. Try adding the exe to a zip or rar archive and send that instead of the plain .exe.","Q_Score":0,"Tags":"python,exe,converters,antivirus,virus","A_Id":66370775,"CreationDate":"2021-02-25T14:34:00.000","Title":"Created an EXE file from .py and it's detected as virus","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"With the Google Cloud command line CLI running  you can specify a local jar with the --jars flag. However I want to submit a job using the Python API. I have that working but when I specify the jar, if I use the file: prefix, it looks on the Dataproc master cluster rather than on my local workstation.\nThere is an easy workaround which is to just upload the jar using the GCS library first but I wanted to check if the Dataproc client libraries already supported this convenience feature.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":72,"Q_Id":66376451,"Users Score":3,"Answer":"Not at the moment. As you mentioned, the most convenient way to do this strictly using the Python client libraries would be to use the GCS client first and then point to your job file in GCS.","Q_Score":2,"Tags":"python,google-cloud-dataproc","A_Id":66378101,"CreationDate":"2021-02-25T21:08:00.000","Title":"Can I Upload a Jar from My Local System using Cloud Dataproc Python API?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"When trying to use requests in my function, it only timeout without additional error. I was trying to use rapidapi for amazon. I already have the host and key, but when I test my function it always timeout. My zip file and my function were on the same directory and I knew that my code was correct.","AnswerCount":1,"Available Count":1,"Score":0.3799489623,"is_accepted":false,"ViewCount":55,"Q_Id":66382131,"Users Score":2,"Answer":"I just figured out that my VPC configuration in Lambda was can only access within the resources of the VPC. I just removed the VPC and it now runs. But when your lambda function will connect to your database, you need to add and configure your VPC.","Q_Score":0,"Tags":"python,amazon-web-services,aws-lambda,python-requests","A_Id":66382132,"CreationDate":"2021-02-26T08:03:00.000","Title":"python requests in AWS Lambda Timeout","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to deploy a Django REST API on Heroku. Normally I wouldn't have any issues with this but for this app, I am using a legacy database that exists on AWS. Is it possible for me to continue to use this remote database after deploying Django to Heroku? I have the database credentials all set up in settings.py so I would assume that it should work but I am not sure.","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":124,"Q_Id":66403645,"Users Score":0,"Answer":"Will it work? I think yes, provided you configure your project and database for external access.\nShould you want it? How may queries does an average page execute? Some applications may make tens of queries for every endpoint and added wait can combine into seconds of waiting for every request.","Q_Score":0,"Tags":"python,django,heroku","A_Id":66403788,"CreationDate":"2021-02-27T21:29:00.000","Title":"Use an external database in Django app on Heroku","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to deploy a Django REST API on Heroku. Normally I wouldn't have any issues with this but for this app, I am using a legacy database that exists on AWS. Is it possible for me to continue to use this remote database after deploying Django to Heroku? I have the database credentials all set up in settings.py so I would assume that it should work but I am not sure.","AnswerCount":2,"Available Count":2,"Score":1.2,"is_accepted":true,"ViewCount":124,"Q_Id":66403645,"Users Score":0,"Answer":"It should not pose any problem to connect with an database on AWS.\nBut be sure that the database on AWS is configured to accept external access, so that Heroku can connect.\nAnd I would sugest that you take the credentials out of the source code and put it in the Config Vars that Heroku provide (environment variables).","Q_Score":0,"Tags":"python,django,heroku","A_Id":66403755,"CreationDate":"2021-02-27T21:29:00.000","Title":"Use an external database in Django app on Heroku","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to crawl a site[URL : https:\/\/www.khaasfood.com\/shop\/]\nFirst I found I have to get categories with a hierarchy.\n.container has a list of li tags that is the parent category.\nEach parent category may have a children's li tag.\nFirst I have to take parent categories. but how?\n'''\nresponse.css('.container li .cat-item')\n'''\nthis code returns all li tags which means bot parent and child category.","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":72,"Q_Id":66419315,"Users Score":1,"Answer":".container > li.cat-item would only select li tags which are the child of .container element\n.container li.cat-item css selector without > will select all descendant li tags","Q_Score":0,"Tags":"python,html,css,scrapy","A_Id":66420986,"CreationDate":"2021-03-01T09:10:00.000","Title":"Scrapy, how to extract parent li only except child li","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am doing a project where we run into a problem, where we have N number of tickets available at certain time. And we are serving it from the backend REST API and people are buying it in FIFO fashion. Its like a race between the buyers.\nProblem:\nCurrently we are handling it like first we take the money from the user (we take money first because it is might possible that customer's bank transaction fails due to some reason so we make it confirm we do not lose anything) and the proceed for the conformation email but we faced the Overbooking issue. Because we already had taken the money but there was no tickets available because in the meanwhile someone else bought it. So we have to give that customer tickets, which lead us to over booking.\nI want to solve it. I have put some thoughts on it.\nFirst Solution:\nThe first solution I come up with is that I have an API that will initially check whether enough tickets are available to sell, if it is, it subtract the number of tickets from the available tickets and ask the customer for payment. Once the payment get confirmed we send customer confirmation email. If it fails we will add those subtracted tickets to the number of available tickets. It apparently seems working but It has some flaws.\nFor example we may lose the tickets permanently, in case user decide not to make any bank transaction or his browser crashes etc.\nSecond Solution:\nSecond solution is to use Django session that will save the information temporarily by subtracting the number of tickets user buying from the tickets available once the the we get the confirmation we will commit the the data base transaction. if not we can roll back. I believe it will break the RESTful API stateless property.\nQuestion:\nDo we have any standard way to solve this problem? I have searched over internet I did not find any solution, and do let me know if this problem is know from another name and already have a standard solution that can be used as is. If not then please share you knowledge and experience.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":141,"Q_Id":66426371,"Users Score":0,"Answer":"I am answering this late, but I was manage to solve this problem. To solve the issue, I used django signals. It was two step procedure.\nFirst of all I added states in Transaction states, which was confirmed, cancelled, reserved, expired.\n\nUser will call the \/reserve endpoint this will create a transaction which will subtract tickets, but in reserved state. It will subtract the number of reserved tickets from the available tickets of an event. on_create signal will initiate a celery task, which will run lets say after 5 minutes, so after 5 minutes it will add those tickets back if they are expired.\n\nUser will come to next step where he will confirm the transaction from end point \/purchase. So now we will mark the transaction in confirmed state.\n\n\nThere was a \/cancel endpoint which will explicitly cancel the tickets.\nThis had downside that someone may abuse the system by keeping the tickets in reserved state (obliviously that's rare case).","Q_Score":0,"Tags":"python,django,rest,django-rest-framework","A_Id":70805207,"CreationDate":"2021-03-01T16:59:00.000","Title":"Ticket Selling Problem in REST with django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have installed the odoo9 server with workers, and also runs the flask server both are needs the werkzeug server, but the odoo9 werkzeug version is = 0.9.6 and flak needs 1.1.X version. while doing this need to uninstall the odoo werkzeug and installed the 0.9 version, can we run the flask also in the same werkzeug version(0.9.6 )not the 1.12\nI follows these commands\npip uninstall Werkzeug\nsudo pip install Werkzeug==0.9.6\nSERVER RESTART\npip install -U flask-cors\nFLASK SERVER RESTART","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":121,"Q_Id":66426575,"Users Score":0,"Answer":"in python you could prepare different environments according to the needs of the application using virtualenv or the new one pyenv.\npyenv gives the ability to run different python versions as well. so you could have python 2 for odoo & python 3 for flask.","Q_Score":0,"Tags":"python,api,server,odoo","A_Id":66429707,"CreationDate":"2021-03-01T17:14:00.000","Title":"Regarding odoo and flask server installations?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a question regarding the usage of EFS as and additional memory location for lambda. I am using python along with pandas to perform some tests on my files. And it works great if the files are not that large, but if the files exceed 2-3 GB lambda dies because of the memory limitation (using both max memory and time of lambda). Files are originally located at S3 and I was wondering would it be possible to use EFS in this scenario? If so what would be required for this solution. Would I need to transfer files from S3 to EFS in order to open them?, or is there an better solution where I can directly load the files from S3 to EFS and open them with pandas. And also there is the timeout limitation, but I hope that wont be an issues if the lambda would be faster with EFS.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":392,"Q_Id":66428845,"Users Score":1,"Answer":"As far as I know pandas requires the whole file to fit into memory.\nIn principle you can fit larger files into memory in Lambda, since you can now configure Lambda functions with up to 10GB of RAM.\nThat's doesn't translate to you being able to read a 10GB file from S3 and create a dataframe out of it, because in order for pandas to parse the data, it needs to either be stored on disk (of which there's only 500MB available to you) or in memory.\nIf you download the file into memory, it also takes up it's size in system memory and then you can create a pandas data frame from that. Pandas data structures are probably larger than the raw bytes of the file, so my guess is that you can load a file from S3 into memory and turn that into a data frame that is about 30-40% of the memory capacity of the lambda function.\nIf you store that file on EFS, you'll be able to fit more into memory, because pandas can read the bytes from disk, so you could probably squeeze out a few more gigabytes. These I\/O operations take time however and Lambda is limited to at most 15 minutes of runtime. You probably also need to write that data somewhere which takes time as well.\nBottom line: Loading larger files than that into Lambda is probably not a good idea. If you can, break up the dataset into smaller chunks and have lambda functions work on them in parallel or choose a service like Athena or EMR or Glue ETL, which are built to handle that stuff.","Q_Score":2,"Tags":"python,pandas,amazon-web-services,aws-lambda,amazon-efs","A_Id":66429091,"CreationDate":"2021-03-01T20:00:00.000","Title":"Using EFS with AWS Lambda (memory issue)","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Why I have a problem with updating Django from version 1.11.29 to 2.0.13. When updating the library django-oauth-toolkit to version 1.2.0 - version support Django 2.0 I receive an error:  __version__ = pkg_resources.require(\"django-oauth-toolkit\")[0].version  pkg_resources.ContextualVersionConflict: (urllib3 1.25.11 (\/.virtualenvs\/django-oauth-tookit-conflict\/lib\/python3.6\/site-packages), Requirement.parse('urllib3<1.25,>=1.21.1'), {'requests'})","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":153,"Q_Id":66436010,"Users Score":0,"Answer":"It's because was changed in \/oauth2_provider\/init.py\nversion = '0.11.0'\nauthor = \"Massimiliano Pippi & Federico Frenguelli\"\ndefault_app_config = 'oauth2_provider.apps.DOTConfig'\nVERSION = version  # synonym\nTo:\nimport pkg_resources\nversion = pkg_resources.require(\"django-oauth-toolkit\")[0].version\ndefault_app_config = \"oauth2_provider.apps.DOTConfig\"","Q_Score":0,"Tags":"python,django,urllib3,django-oauth-toolkit","A_Id":66470352,"CreationDate":"2021-03-02T08:44:00.000","Title":"Version conflict django-oauth-toolkit>0.12.0 and urllib3==1.25.11","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to deploy a flask app with http.server (ngnix not installed by admin). I want any user who logs into the cluster to access it. Is it possible?","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":26,"Q_Id":66436982,"Users Score":1,"Answer":"HTTP server interfaces are visible to all users that are connected to a machine that has direct network access to the machine your server is running on.\nIf you need them to access the interface just provide the ip address and port where the server is running and the will be able to access it as users of the Flask app you are running. Just make sure you allow the users to access the needed resources.","Q_Score":0,"Tags":"python,linux,http,server","A_Id":66437057,"CreationDate":"2021-03-02T09:49:00.000","Title":"If I run an http server in my user account (linux cluster) how to enable other users to access it?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"For establishing many-to-many relationships, django admin has a nice widget called 'filter_horizontal'.\nThe problem is - it only displays primary key of the related table.\nHow do I add other fields from the related table?\nFor example, if I have a many-to-many relationship in my Order model with User model, in 'Order' django admin I can only see User's primary key(id). How do I add their name into the widget?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":52,"Q_Id":66443136,"Users Score":0,"Answer":"Turns out it is changed in  str method for the User model","Q_Score":0,"Tags":"python,django,admin","A_Id":66510005,"CreationDate":"2021-03-02T16:20:00.000","Title":"Django admin many-to-many - how to show additional fields?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I manually uploaded a CSV to S3 and then copied it into redshift and ran the queries. I want to build a website where you can enter data and have it automatically run the queries when the data is entered and show the results of the queries.","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":16,"Q_Id":66462945,"Users Score":1,"Answer":"Amazon Redshift does not have Triggers. Therefore, it is not possible to 'trigger' an action when data is loaded into Redshift.\nInstead, whatever process you use to load the data will also need to run the queries.","Q_Score":0,"Tags":"python,amazon-web-services,amazon-redshift","A_Id":66464775,"CreationDate":"2021-03-03T18:38:00.000","Title":"Is it possible to upload a CSV to redshift and have it automatically run and export the saved queries?","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am using Windows subsystem for Linux WSL with the Ubuntu App (Ubuntu 20.04 LTS). I have installed Anaconda (Anaconda3-2020.11-Linux-x86_64) on my Windows 10 Education 1909. I have Jupyter notebook, and can run this in the Firefox on my computer and it seams to be working properly. However when I try to install packages such as:\nUbuntu console: pip install scrapy\nThen the Jupyter notebook can not find it.\nJupyter notebook: import scrapy\nI am currently working in the base environment, but I believe that Jupyter is actually running python from a different source (I also have Anaconda on my Windows).\nI confirmed this by running:\nimport sys and sys.version both in the WSL and in the Jupyter notebook.\nJupyter notebook returns: '3.6.6 |Anaconda, Inc.| (default, Oct  9 2018, 12:34:16) \\n[GCC 7.3.0]'\nWSL returns: '3.8.5 (default, Sep  4 2020, 07:30:14) \\n[GCC 7.3.0]'\nconfirming that the \"wrong python is used\".\nI am hesitant to delete my Windows Anaconda since I have my precious environments all set up there and are using them constantly.\nThe spessific package that forces me to linux can be found at \"http:\/\/www.nupack.org\/downloads\" but requires registration for downloads.\nI do not have Anaconda or python in my Windows environment variables.\nI would be happy If I either would know where to install my packages (as long as they are in Linux), or if someone knows how to force Jupyter to use the Anaconda from WSL.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":558,"Q_Id":66474736,"Users Score":0,"Answer":"Thanks to Panagiotis Kanavos I found out that I had both Anaconda3 and Miniconda3 installed and that the WSL command line used the miniconda3 version while Jupiter Notebook used Anaconda3.\nThere is probably a way of specifying which version to use but for me I simply deleted Miniconda and it now works.","Q_Score":1,"Tags":"python,jupyter-notebook,windows-subsystem-for-linux,anaconda3","A_Id":66489815,"CreationDate":"2021-03-04T12:09:00.000","Title":"Anaconda on Windows subsystem for Linux (WSL) uses the \"wrong\" anaconda when creating a Jupyther Notebook","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":1,"Web Development":1},{"Question":"Windows 10, Anaconda Spyder, Python\nTrying to convert word '.doc' to PDF\nThe first step fails\nimport comtypes.client\nword = comtypes.client.CreateObject('Word.Application')\n\nGet Error:\nTraceback (most recent call last):\nFile \"\", line 1, in \nword = comtypes.client.CreateObject('Word.Application')\nFile \"C:\\ProgramData\\Anaconda3\\lib\\site-packages\\comtypes\\client_init_.py\", line 250, in CreateObject\nreturn _manage(obj, clsid, interface=interface)\nFile \"C:\\ProgramData\\Anaconda3\\lib\\site-packages\\comtypes\\client_init_.py\", line 188, in _manage\nobj = GetBestInterface(obj)\nFile \"C:\\ProgramData\\Anaconda3\\lib\\site-packages\\comtypes\\client_init_.py\", line 112, in GetBestInterface\ninterface = getattr(mod, itf_name)\nAttributeError: module 'comtypes.gen.Word' has no attribute '_Application'\n\nMost websites seem to state that this should not happen???","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":755,"Q_Id":66482132,"Users Score":0,"Answer":"Problem:\nThis problem is caused by incorrect COM Interop settings in the Windows registry.\n(not python or its libraries)\nI've tested this using \"comtypes\" and \"win32api\", and multiple MS Office versions.\nThere seem to be issues with calls to COM objects,\nregarding some MS Office versions.\n\nSolution 1:\n\nClick on your Start menu and open the Control Panel\n\nClick on Uninstall a Program (or Add\/Remove programs in Windows XP)\n\nLocate the entry for Microsoft Office and click on it. After you click on it, you should see a button labelled Change appear either next to it, or at the top of the list (depending on what version of Windows you have). Click this Change button.\n\nOnce the Microsoft Office setup appears, choose the Repair option and click Next to have Microsoft Office repair itself. You may need to reboot your computer once this process is complete; Microsoft Office setup will tell you if you need to do this once it is done.\n\n\n\nSolution 2:\nInstall MS Office versions that are tested and functional with COM calls.\nHere are the results of the MS Office versions that I have tested:\nWorking MS Office versions: 2010, 2019, 365.\nNon-working MS Office versions: 2007, 2013.\n\nUseful COM registry paths to check:\nMS Word x64:\n\"HKEY_CLASSES_ROOT\\WOW6432Node\\Interface{00020970-0000-0000-C000-000000000046}\\TypeLib\"\nMS Word x32:\n\"HKEY_CLASSES_ROOT \\Interface{00020970-0000-0000-C000-000000000046}\\TypeLib\"\nBoth:\n\"HKEY_CLASSES_ROOT\\ WOW6432Node \\TypeLib{00020970-0000-0000-C000-000000000046}\"\n\n8.5 is for Office 2010\n8.6 is for Office 2013\n8.7 is for Office 2016\n\nCOM Interfaces:\n\"HKEY_CLASSES_ROOT\\WOW6432Node\\Interface{000C033A-0000-0000-C000-000000000046}\\TypeLib\\Version\"\n\n2.5 if for Office 2010\n2.7 is for Office 2013\n2.8 is for Office 2016\n\n\"HKEY_CLASSES_ROOT\\WOW6432Node\\Interface{000C0339-0000-0000-C000-000000000046}\\TypeLib\\Version\"\n\n2.5 if for Office 2010\n2.7 is for Office 2013\n2.8 is for Office 2016","Q_Score":0,"Tags":"python,anaconda,windows-10,spyder,comtypes","A_Id":66571184,"CreationDate":"2021-03-04T19:55:00.000","Title":"word = comtypes.client.CreateObject('Word.Application') generates error","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have one API, is an flask application with python deployed on AWS EC2. Some endpoints need to connect on AWS Keyspace for make a query. But the method cluster.connect() is too slow, takes 5 seconds for connect and then run the query.\nWhat I did to solve it, was to start a connection when the application starts (when a commit is done on the master branch, I'm using CodePipeline), and then the connection is open all the time.\nI didn't find anything in the python cassandra driver documentation against this, is there any potential problem with this solution that I found?","AnswerCount":2,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":273,"Q_Id":66496938,"Users Score":2,"Answer":"It's a recommended way - open connection at start and keep it (and have one connection per application).  Opening connection to a Cassandra cluster is an expensive operation, because besides connection itself, driver discovers the topology of the cluster, calculate token ranges, and many other things.  Usually, for \"normal\" Cassandra this shouldn't be very long (but still expensive), and AWS's emulation may add an additional latency on top of it.","Q_Score":2,"Tags":"python,amazon-web-services,cassandra,amazon-keyspaces","A_Id":66497975,"CreationDate":"2021-03-05T17:24:00.000","Title":"Why is connecting to AWS keyspaces so slow with python's cassandra-driver?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am creating an ERP web application using Django. How can i connect multiple apps inside of a project with one database. I am using the PostgreSQL database and also how can i centralized the database for all modules of ERP. How can i perform operations in other module and see if user is authenticated or not","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":220,"Q_Id":66504952,"Users Score":0,"Answer":"Your apps use only the database(s) set up in your settings.py file.","Q_Score":3,"Tags":"python-3.x,django,postgresql","A_Id":66511623,"CreationDate":"2021-03-06T11:01:00.000","Title":"Multiple applications inside a Django project","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a long list with urls and some of them are \"parked-free\" by godaddy\nIs there any technical way to recognize such pages without opening them on browser?\nThe page is technically live and\nrequests.head('url').status_code\nreturns 200 so it doesn't help\nTrying to get the content, I only receive \"Enable Javascript...\" message\nI also tried to use some metatags but they are not visible in beautiful soup\nSelenium could probably help, but I would like to avoid it for this specific problem\nIs there any simplier solution for this?","AnswerCount":1,"Available Count":1,"Score":0.3799489623,"is_accepted":false,"ViewCount":186,"Q_Id":66507046,"Users Score":2,"Answer":"If it's just godaddy, you can try either resolving the domain or trying to make a request with random path (say, \/dkfiwifhe). The few domain I tested all resolve to 34.102.136.180, and return HTTP 200 for any path.\nOf course, this can change anytime and likely won't work on other parking sites, sedo resolve to 91.195.241.137, including all the subdomain (godaddy return nxdomain for random subdomain and canonical naked domain for www), but return 403 for any path.\nDepending on how many unique parking sites in your list, you might as well just look up at list of parking sites provider and craft special script for all of them.\nAnother alternative is, some DNS providers allows filtering parked domain, so you can just attempt to resolve against them. Service recommendation is off topic though, so you can just google them yourself.","Q_Score":2,"Tags":"python,beautifulsoup,python-requests,urllib2","A_Id":66507468,"CreationDate":"2021-03-06T14:59:00.000","Title":"How can I recognize a \"parked free\" website?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have cloned a random project and trying to run it in my local system. I am using visual studio code editor. After opening the extracted folder in editor, I have clicked on run.\nAt this point in time, a new chrome browser is getting opened and its showing that the server is down.\nI tried setting up a virtual environment and by using the command - \"python manage.py runserver\" .\nEven though I am unable to test that project.\nCould I get some insights to get rid of this issue as early as possible please?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":636,"Q_Id":66512924,"Users Score":0,"Answer":"First of all ,\ncheck if you already install django with pip install django  and try to make python manage.py makemigrations and python manage.py migrate\nSecond , check for any config or env file that you need to complete to run the project.\nif none of this works , share the error on your command prompt.","Q_Score":0,"Tags":"python,django,testing","A_Id":66512991,"CreationDate":"2021-03-07T03:27:00.000","Title":"How to run and test a django cloned project from github in visual studio code?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am new in scrapy.\nI get list of li tag from xpath selector : categories = categories_container.xpath('li')\nnow I have find out which category element has the css class of \"particular class which not in other li\".\nwhat I can do to find that li ?\nthanks in advance.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":33,"Q_Id":66516838,"Users Score":0,"Answer":"categories_container.xpath('\/\/li[contains(@class, \"particular class\")]').getall()\nor css\ncategories_container.css('li.classname').getall()","Q_Score":0,"Tags":"python,scrapy","A_Id":66532875,"CreationDate":"2021-03-07T13:07:00.000","Title":"find element has the class or not in scrapy","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Hello I have designed some algorithms that we would like to implement in our company's software (start-up) but some of them take too long (10-15 min) as it is handling big datasets.\nI am wondering if using for example Google Cloud to run my scripts, as it would use more nodes, it would make my algorithm to run faster.\nIs it the same to run a script locally in Jupyter for instance than running it within Cloud?\nThinking of using Spark too.\nThank you","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":35,"Q_Id":66535075,"Users Score":1,"Answer":"I think the only applicable answer is \"it depends\". The cloud is just \"someone else's computer\", so if it runs faster or not depends on the cloud server it's running on. For example if it is a data-intensive task with a lot of I\/O it might run faster on a server with a SSD than on your local machine with a HDD. If it's a processor intensive task, it might run faster if the server has a faster CPU than your local machine has. You get the point.","Q_Score":0,"Tags":"python,cloud","A_Id":66535186,"CreationDate":"2021-03-08T18:17:00.000","Title":"Does running scripts from Cloud (AWS\/Google\/Azure) make my algorithms faster?","Data Science and Machine Learning":1,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I am trying to include a machine learning component in my Django project. I have the method written in python. How do I get to make it work on the website using Django. Can I simply drag the \".py\" file into the file structure and call it from an HTML page? I am new to Django any help would be greatly appreciated.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":178,"Q_Id":66551026,"Users Score":0,"Answer":"Yes you can directly copy file into your Django Directory structure. Let's say you have a file test.py and a function written in it as def print(). And you have copied the file in app directory. Then you can call it in views.py as from app.test import print. print function will be imported in views.py and you can use it to serve in html as you want.","Q_Score":0,"Tags":"python,django,opencv","A_Id":66551229,"CreationDate":"2021-03-09T16:36:00.000","Title":"How to integrate a python file onto a Django project?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Didn't find an answer regarding my particular question, so I'm sorry if this has been asked already.\nI've created a Python program that scrapes the articles posted on news websites by certain keywords. On average, when running it once in the evening, it would be searching through 2000 articles of the day. Now I obviously want this program to run on loop 24\/7 looking for new articles in realtime (or every 5 minutes). When it hits something based on my keywords, I get notified.\nTherefore, I wanted to know whether you guys have any good recommendations on hosting? I've heard about AWS Lambda but wanted to get a second opinion. Anything that costs below -$250 a month is possible :) Maybe someone has a similar project running or can confirm my idea with AWS.\nThanks in advance!","AnswerCount":2,"Available Count":1,"Score":0.0996679946,"is_accepted":false,"ViewCount":526,"Q_Id":66555271,"Users Score":1,"Answer":"Great question, once your script starts do you ever run new scripts or can you just leave the terminal running?\nIn the latter case, you need Amazon ec2, not Lambda. Lambda is for running functions, an Ec2 is the \"cloud computer\" that you are looking for to \"host\" and run your program.\nLook into Ec2, and use EBS or EFB for storage. S3 is good for storing images, or links, or objects, but if you are using an Ec2 instance (cloud computer) and don't need to store your data as an object and don't need to use a dedicated MYSQL or NOSQL database, just store the info in your EBS or EFB. Remember, EBS and EFB are the hard drive of the computer (your ec2), and Amazon RDS is database, Amazon Aurora is inside RDS and is for MYSQL, PostGRESL, and S3 is like a image \/ object drive. For example, if you had an ebook you were going to distribute, you would store your ebook in S3.\nYou can set up an Ec2 and EBS for free too. Just use the free tier and use the t2.micro for ec2 instance. See how it runs for a few days and then go bigger when necessary.","Q_Score":0,"Tags":"python,amazon-web-services,web-scraping,aws-lambda,hosting","A_Id":66556908,"CreationDate":"2021-03-09T21:48:00.000","Title":"Python Web Scraping - How to scrape a News website 24\/7 for new articles?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"How can you tell in general when a website is rendering content in javascript? I typically use bs4 to scrape and I when I can't find a tag, I'm not sure if its because its javascript rendered (which bs4 cant detect) or if I did something wrong.","AnswerCount":1,"Available Count":1,"Score":0.537049567,"is_accepted":false,"ViewCount":130,"Q_Id":66575569,"Users Score":3,"Answer":"Compare the output of your request with the html returned from a browser request. In Chrome and Firefox, press F12 and the console will appear. Under the network tab you can see all the requests that have been made. If the Network tab is empty, refresh the page. The response from the first request in the Network tab should match the response you recieved from the Python request. If it doesn't match, either your request differs from the browser request, or javascript is doing some post processing.\nSubsequent requests in the Network tab may be from javascript running, from iframes, images, or much more.","Q_Score":3,"Tags":"python-3.x,web-scraping,beautifulsoup","A_Id":66575613,"CreationDate":"2021-03-11T02:16:00.000","Title":"Web scraping: How to tell in general if a page has content rendered in javascript","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I was using TensorFlow to train a machine learning model.\nI use the command model.save('my_model.h5') to save my model .\nWhere is the exact location path that the model file is saved?\nWill it simply overwrite the old one if I run the code again?\nMany thanks.","AnswerCount":3,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":506,"Q_Id":66576166,"Users Score":0,"Answer":"Yes.Model will saved in the current directory and the model will overwrite the oldone when saving the same model with same name.if you need various model just change the name of the model while saving the model each time.","Q_Score":0,"Tags":"python,tensorflow","A_Id":66579179,"CreationDate":"2021-03-11T03:45:00.000","Title":"Where is the file that is saved by model.save() command","Data Science and Machine Learning":1,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to check if a specific key has a specific value in a dynamodb table with\/without retrieving the entire item. Is there a way to do this in Python using boto3?\nNote: I am looking to match a sort key with its value and check if that specific key value pair exists in the table,","AnswerCount":2,"Available Count":2,"Score":1.2,"is_accepted":true,"ViewCount":1886,"Q_Id":66592148,"Users Score":1,"Answer":"It sounds like you want to fetch an item by it's sort key alone.  While this is possible with the scan operation, it's not ideal.\nDynamoDB gives us three ways to fetch data: getItem, query and scan.\nThe getItem operation allows you to fetch a single using it's primary key.  The query operation can fetch multiple items within the same partition, but requires you to specify the partition key (and optionally the sort key). The scan operation lets you fetch items by specifying any attribute.\nTherefore, if you want to fetch data form DynamoDB without using the full primary key or partition key, you can use the scan operation. However, be careful when using scan. From the docs:\n\nThe Scan operation returns one or more items and item attributes by accessing every item in a table or a secondary index.\n\nThe scan operation can be horribly inefficient if not used carefully. If you find yourself using scans frequently in your application or in a highly trafficked area of your app, you probably want to reorganize your data model.","Q_Score":0,"Tags":"python,amazon-dynamodb","A_Id":66593453,"CreationDate":"2021-03-11T23:41:00.000","Title":"Is there a way to check if a key=value exists in a DynamoDB table?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to check if a specific key has a specific value in a dynamodb table with\/without retrieving the entire item. Is there a way to do this in Python using boto3?\nNote: I am looking to match a sort key with its value and check if that specific key value pair exists in the table,","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":1886,"Q_Id":66592148,"Users Score":0,"Answer":"What Seth said is 100% accurate, however, if you can add a GSI you can use the query option on the GSI. You could create a GSI that is just the value of the sort key, allowing you to query for records that match that sort key. You can even use the same field, and if you don't need any of the data you can just project the keys, keeping the cost relatively low.","Q_Score":0,"Tags":"python,amazon-dynamodb","A_Id":66608130,"CreationDate":"2021-03-11T23:41:00.000","Title":"Is there a way to check if a key=value exists in a DynamoDB table?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am building a web scraper that has to retrieve quickly the text of a web page, from HTML only. I'm using Python, requests and BeautifulSoup.\nI would like to detect if the web page content is pure HTML or if it's rendered from Javascript. In this last case, I would just return an error message saying that this cannot be done.\nI know about headless browsers to render the Javascript but in this case I really just need to detect it the fastest way possible without having to render it.\nIt's not really possible to detect script tag as there are many in every webpage and that doesn't mean the text content is rendered in Javascript necessarily.\nIs there something I could check jn the HTML that tells me accurately that the body content will be rendered from Javascript?\nThank you","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":43,"Q_Id":66598057,"Users Score":1,"Answer":"There is nothing in the initial DOM that shows beforehand that the site is rendered with js. These are some stuff you could try:\n\nAnalyzing several websites and make a guess on where the site\nis rendered with js based on the page's content size.\nYou could also get the html of different pages of the site\nand compare the content length (for a js-rendered site, the contents\nof different pages are likely to be the same\/similar before any code is executed).\nCheck the content size of the scripts or detect the scripts names of\nfamous technologies like react, vue and angular","Q_Score":0,"Tags":"javascript,python,html,web-scraping,python-requests","A_Id":66615160,"CreationDate":"2021-03-12T10:18:00.000","Title":"How do I detect if a web page is rendered dynamically from Javascript in Python?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I don't know if this is a problem with Heroku or not, but I hope you can help me guys.\nI am building a bot in python using the praw library where I use the submission.reply(\"something\") to comment some posts, but the thing is that it only works in my local machine.\nWhen I upload it to Heroku, it does not work, except for a post in a certain subreddit and I am not entirely sure why. After that one, it simply does not comment anything. I tested it with try\/except and the error is here for sure, but I can\u00b4t find the problem.\nHere is the error:\n\npraw.exceptions.RedditAPIException: RATELIMIT: \"Looks like you've been doing that a lot. Take a break for 3 minutes before trying again.\" on field 'ratelimit'","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":169,"Q_Id":66601371,"Users Score":0,"Answer":"Looks like your bot is commenting way too fast for the reddit API guidelines. Try adding a delay timer of about 10 seconds after every comment.","Q_Score":0,"Tags":"python,heroku,reddit,praw","A_Id":68469428,"CreationDate":"2021-03-12T14:03:00.000","Title":"Heroku and Praw (Reddit API) submission.reply()","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am learning django channels in pythonanywhere and pythonanywhere support redislite instead of redis.\nso i want to setup redislite to port 6379\nexactly like in redis command:redis-server --port 6379\nI don't seem to find exact answer.\nAny answer would be appreciated.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":90,"Q_Id":66612723,"Users Score":0,"Answer":"That's not redislite, that's redis. redislite is just a module that you import and use.","Q_Score":0,"Tags":"pythonanywhere,stackexchange.redis,node-redis,redislabs","A_Id":66636483,"CreationDate":"2021-03-13T11:07:00.000","Title":"How to setup redislite in specific port:6379","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am a PhD student, and I have been creating Python programs to handle massive scientific calculations.\nEven after using optimal Computer Science algorithms, my scripts often take hours to complete.\nI recently tried to implement some of the heavier functions in JavaScript to compare its performance, and it was 10x times faster right away.\nThis left me wondering why is JavaScript so much Faster than Python, if both are interpreted languages. Could Python could ever catch up with this performance? (Perhaps restricting a few minor operations, or adding optional declarations to improve speed).\nPS. I have read that the performance improvements that I noticed in JavaScript are powered by advanced Google Chrome technology, so I guess my question could be rephrased as asking whether these technologies could also be applied to speed up standard Python.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":240,"Q_Id":66614587,"Users Score":2,"Answer":"Here the reason for python to be slow is because, python runs c programme at its backend.\nWhat I meant by it is that every variable\/ object you create in python has an 'C' struct defined at its backend for find that variables size,datatype, and other three parameters. Hence, each time you run the python code it first runs that c code in backed and shows you result.\nHence, python is much slower compared to javascript or java.","Q_Score":0,"Tags":"javascript,python-3.x,performance","A_Id":66614653,"CreationDate":"2021-03-13T14:24:00.000","Title":"Why is Python so much slower than JavaScript? Could it ever catch up?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"Am new to fastapi. I have worked with multiple web frameworks in other languages and found the common pattern of middlewares for various purposes. e.g. If I have an API route that I want to authenticate then I would use a middleware that does the authentication. If I want to augment the incoming request I would use a middleware. FastAPI does have middlewares (A very small section in docs) but also has dependencies. I was looking to authenticate my API routes and started looking for examples and all the examples I find use dependencies. What (dependency or middleware) would be recommended way to authenticate an API route and why?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":3124,"Q_Id":66632841,"Users Score":13,"Answer":"The way I see it:\n\nDependency: you use it to run code for preparing variables, authentication and so on.\nMiddleware: you need to check some stuff first and reject or forward the request to your logic.\n\nThe middleware can be seen as a superset of a Dependency, as the latter is a sort of middleware that returns a value which can be used in the request. Though, in the middleware, you can log your requests or cache the results and access the response of the request (or even forward the request, call some other API and so on).\nTL;DR\nA Dependency is a sort of common logic that is required before processing the request (e.g. I need the user id associated to this token), while a Middleware can do that, it can also access the response to that request. Dependencies are the preferred way to create a middleware for authentication","Q_Score":9,"Tags":"python,fastapi","A_Id":66634433,"CreationDate":"2021-03-15T05:34:00.000","Title":"fastapi dependency vs middleware","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Created a Flash Restful API with various end points for my website. Some endpoints need the users username and password to get user specific data. I\u2019m currently sending these as parameters in the API call but I\u2019m assuming this isn\u2019t secure so how does one do this safely?","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":71,"Q_Id":66639116,"Users Score":0,"Answer":"you can make a seperate api route that acts as a login and returns a sessionID\/token on a successful login that can be used for authenticating to those endpoints you mentioned.","Q_Score":0,"Tags":"python,api,flask-restful","A_Id":66639816,"CreationDate":"2021-03-15T13:40:00.000","Title":"How to safely send a user data in API call","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I currently have a bucket in Google Cloud Storage with .pdf files, and I want to split each .pdf file into a multiple one-page .pdf files.\nI can only load the files as BLOB's (<class 'google.cloud.storage.blob.Blob'>), and I can't find a good answer on how to read as a PdfFileReader object.","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":314,"Q_Id":66642586,"Users Score":1,"Answer":"Upon \"fetching\" the object\/file from the bucket, you can \"keep\" it in the cloud function memory as a string (of bytes) or save it into a temp \"directory\" (\/tmp) local to your cloud function (the memory fo that temp directory is allocated form the total memory available for the cloud function). After that, you may be able to process the data either as a string, or as a file. When you finish with processing, you probably would like to upload those files into some other storage bucket.","Q_Score":0,"Tags":"python,pdf,google-cloud-functions,google-cloud-storage","A_Id":66643268,"CreationDate":"2021-03-15T17:15:00.000","Title":"Reading PDF from Google Cloud Storage","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"After a click, a mini banner (or a container drawer) opens, which I should click on it, but I can't interact with it.\nI was trying the \"driver.switchTo\" command but since there is no Iframe, I don't know how to do it.\nthe body is this:\n  <a class=\"option\"> Go <\/a>","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":93,"Q_Id":66645314,"Users Score":1,"Answer":"I've had issues with this in the past, and largely I couldn't figure out what to do either.  If you can just leave your computer alone during the process you can always try to use pyautogui to kind of cheat your way through it.","Q_Score":1,"Tags":"python,selenium,switch-statement","A_Id":66645596,"CreationDate":"2021-03-15T20:36:00.000","Title":"Switch to panel - Python Selenium","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Hi I want to know If I am able to work directly with queries inside the \"models.py\" file to make results the default values of some fields. For example:\nclass NewModel(models.Model):\nSeats = models.IntegerField(default=<some_result_of_a_query>)\n...\nThanks! :)","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":228,"Q_Id":66645337,"Users Score":0,"Answer":"You can define a method on the model that returns the value you want and point the default of your field to that method.","Q_Score":0,"Tags":"python,django,django-models,django-queryset","A_Id":66646817,"CreationDate":"2021-03-15T20:38:00.000","Title":"How to make queries directly on the models.py file in django, to fill the fileds with the results?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to create Jira issues with data populated in a row in google sheet, I plan to put a button to read the contents of the row and create Jira issues, I have figured the Jira API wrote the script for it and also the Google sheets API to read the row values to put in the Jira API.\nHow do I link the button to the python script in my local machine in a simple manner, I went through other similar asks here, but they are quite old and hoping now some new way might be available.\nPlease help me achieve this in a simple way, any help is greatly appreciated.\nThank You and Stay Safe.","AnswerCount":3,"Available Count":1,"Score":0.2605204458,"is_accepted":false,"ViewCount":808,"Q_Id":66655415,"Users Score":4,"Answer":"Google sheets cannot run code on your local machine. That means you have a few options:\nClick the button locally\nInstead of clicking a button on the google sheet, you can run the script yourself from the command line. This is probably how you tested it, and not what you want.\nWatch the spreadsheet\nYou could have your python script setup to run every few minutes. This has the benefit of being very straightforward to setup (google for cron jobs), but does not have a button, and may be slower to update. Also, it stops working if you turn off your computer.\nMake script available for remote execution\nYou can make it so that your script can be run remotely, but it requries extra work. You could buy a website domain, and point it towards your computer (using dynamic dns), and then make the google sheet request your new url. This is a lot of work, and costs real money. This is probably not the best way\nMove the script into the cloud\nThis is probably what you want: cut your machine out of the loop. You can use Google AppScripts, and rewrite your jira code there. You can then configure the google AppScript to run on a button click.","Q_Score":3,"Tags":"python,google-sheets,google-sheets-api","A_Id":66772025,"CreationDate":"2021-03-16T12:39:00.000","Title":"Running a python script saved in local machine from google sheets on a button press","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am building an application that uses two legged authentication. I got an API key and API Secret, but now I am confused.\nI am currently storing my api keys and secrets in a .yml file. But I would like to distribute the .app code, which will end up having the .yml file.\nBut the .app file will contain the .yml, file, which is bad since everyone will be able to see the API key and Secret.\nHow can I store the API key and Secret such that my application can access the key and secret without the users seeing it?","AnswerCount":2,"Available Count":2,"Score":1.2,"is_accepted":true,"ViewCount":578,"Q_Id":66660180,"Users Score":1,"Answer":"The answer depends on a few variables:\n\nIs your source included?\nIs it possible to use a server to call the API for you? If so, can you also apply restrictions to the call that the server makes?\nIs using compiled code for where you store the key an option? If so, is it possible to obfuscate it?\n\nHere are my suggestions for different scenarios from experience:\nThe source is not included and using a server is an option, and restrictions can be applied, however using compiled code is not an argument\nThen use a server to make requests. Let's say you need to make a call to example.com\/api\/v1, and you want to call a specific function with a specific set of arguments, then you can only allow requests to that specific API, with that specific set of arguments, and that specific function. This way, it means nothing to a potential attacker since it only calls to one function and nothing else.\nThe source is not included, using a server is not an option, and compiled code is not an option either\nWell, there's not much you can do, obfuscation is your best shot. The best way to do something like this is to hide it deep within your code, and make it obscure, etc., etc., etc.,\nThe source is included, using a server is not an option, but you can use compiled code\nUse really obfuscated assembly and don't share the source for that if you can. For instance, you can have red herring instructions, and just like before, you should hide it deep in your code.\nThe source is not included, using a server is not an option, but you can use compiled code\nFor this it's the same as above, since the source for the assembly wouldn't be included\nIf I didn't list your scenario here, then feel free to comment and I'll edit my answer","Q_Score":4,"Tags":"python,api,api-key","A_Id":67026216,"CreationDate":"2021-03-16T17:19:00.000","Title":"How to secure API keys in applications that will be distributed to clients","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am building an application that uses two legged authentication. I got an API key and API Secret, but now I am confused.\nI am currently storing my api keys and secrets in a .yml file. But I would like to distribute the .app code, which will end up having the .yml file.\nBut the .app file will contain the .yml, file, which is bad since everyone will be able to see the API key and Secret.\nHow can I store the API key and Secret such that my application can access the key and secret without the users seeing it?","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":578,"Q_Id":66660180,"Users Score":0,"Answer":"While I consider the existing answer technically correct, it may be wroth pointing out that there are some security issues with hardcoding api keys in distributed software.\nThe nature of an API key is volatile, it is not designed to last forever.\nWhat would happen if the API key is invalidated? Wouldn't that render all distributed software useless then?\nAnd what would happen if the API key has write privileges and is compromised? How could you distinguish between legit and malicious writes?\nEven though I understand the overhead, a scenario were the end user can set dedicated keys, obtained by the end user itself, and a way to replace that initial key, would help with above two questions.\nOne of the API Key features is to be used by a machine that acts on behalf of a user, but if all the users are the same, this feature becomes meaningless.","Q_Score":4,"Tags":"python,api,api-key","A_Id":67091736,"CreationDate":"2021-03-16T17:19:00.000","Title":"How to secure API keys in applications that will be distributed to clients","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have been playing around with django channels + angular. I have created an app that simply sends notifications to front end with a counter 1,2,3,4. It works fine, except if I open the page in multiple tabs. I am also not able to disconnect from the websocket, I can use unsubscribe but it does not really  close the connection but that's more kind of a angular question. Anyways how can I make my socket multithread, So if I make multiple requests from the same computer but from different tabs it will work and 2 different instances of the consumer will be created therefore, If I load 2 pages in the same computer the counter should be different independently increasing counter. Do I need redis for that ?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":465,"Q_Id":66662639,"Users Score":0,"Answer":"my url router was missing .as_asgi()\nthis worked:\nURLRouter([path('wscrawpredict', CrawPredictConsume.as_asgi(),name=\"wscraw\")])","Q_Score":0,"Tags":"python,django,angular,websocket,django-channels","A_Id":66829614,"CreationDate":"2021-03-16T20:08:00.000","Title":"multiple independent websockets connections","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Lets say I have an Apache webserver that hosts a webpage, the webpage contains a button, how can I trigger the execution of a python script on my machine (the server machine) when clicking on the button?","AnswerCount":3,"Available Count":3,"Score":0.0,"is_accepted":false,"ViewCount":76,"Q_Id":66664790,"Users Score":0,"Answer":"One of the solutions out there is:\n\nMake an endpoint that invoke the python script (depending on your server, if it's python you will just call the script and if it's another function you can make a system call to invoke the python script)\nUse xml\/Ajax or any other call when you click the button to this endpoint\n\nPlease note that you need to secure your endpoint through JWT for maximum security","Q_Score":0,"Tags":"javascript,python,html","A_Id":66665096,"CreationDate":"2021-03-16T23:14:00.000","Title":"Is it possible to execute a python script on my machine from an HTML button?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Lets say I have an Apache webserver that hosts a webpage, the webpage contains a button, how can I trigger the execution of a python script on my machine (the server machine) when clicking on the button?","AnswerCount":3,"Available Count":3,"Score":0.0,"is_accepted":false,"ViewCount":76,"Q_Id":66664790,"Users Score":0,"Answer":"One solution, that would work, is by using a web-request. I can't really give you any code since your request is very general, but I can give you a sort of procedure.\n\nPython WebApp is running on the same server\n\nWebsite makes XmlHttprequest with javascript to your set location\n\nThe defined function executes \/ executes your Python script\n\n\nAll this can be done easily by using a FrameWork like Flask.","Q_Score":0,"Tags":"javascript,python,html","A_Id":66664859,"CreationDate":"2021-03-16T23:14:00.000","Title":"Is it possible to execute a python script on my machine from an HTML button?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Lets say I have an Apache webserver that hosts a webpage, the webpage contains a button, how can I trigger the execution of a python script on my machine (the server machine) when clicking on the button?","AnswerCount":3,"Available Count":3,"Score":0.0,"is_accepted":false,"ViewCount":76,"Q_Id":66664790,"Users Score":0,"Answer":"Easiest solution:\nCreate an endpoint on the webserver that executes the Python process every time someone accesses it (via GET\/POST, anything really), and then use AJAX in the browser (jQuery, VueJS+axios, native XmlHttpRequest) to connect the button to that endpoint.\nThis has a number of problems: anyone could GET the endpoint and trigger the process multiple times, which could crash your server. You'll need to password protect it unless you code the endpoint so that it can't be spammed.\nThis also spawns a process for every click. Another solution is to keep the Python process running and open a socket, which you can then send commands to from the endpoint on the local machine.\nMany ways this can be done.","Q_Score":0,"Tags":"javascript,python,html","A_Id":66664982,"CreationDate":"2021-03-16T23:14:00.000","Title":"Is it possible to execute a python script on my machine from an HTML button?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I installed Django not knowing I was to create a virtual environment before installing it.(I don't know if I am making sense) but now I cant activate my virtual environment? is there something that I can do to rectify this","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":761,"Q_Id":66678476,"Users Score":0,"Answer":"if Django is installed in local environment you can uninstall it using pip command as : $ pip uninstall <package-name>.\nand if you want to create a virtual environment and install Django in it for that you can use pipenv  as pipenv install django==<version> but for that you need to install pipenv which you can install using pip as pip install pipenv","Q_Score":0,"Tags":"python,django,frameworks,virtualenv","A_Id":66678857,"CreationDate":"2021-03-17T17:43:00.000","Title":"How to activate virtual environment","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am developing a GUI app that will be used supposedly by mutliple users. In my app, I use QAbstractTableModel to display a MS Access Database (stored on a local server, accessed by several PCs) in a QTableView. I developped everything I needed for unique user interaction. But now I'm moving to the step where I need to think about multi-user interaction.\nFor exemple, if user A changes a specific line, the instance of the app on user's B PC needs to update the changed line. Another example, if user A is modifying a specific line, and user B also wants to modify it, it needs to be notified as \"already being modified, wait please\", and once the modification from user A is done, the user B needs to see this modification updated before he has any interaction.\nToday, because of the local nature of the MS Access database, I have to update the table view a lot of time, based on user interaction, in order to not miss any database modification from other potential users. It is kinda greedy in terms of performance and resources.\nI was thinking about using Django in order make the different app instances communicate with each other, but maybe I'm overthingking it and may be there is other solutions.\nDunno if it's clear, I'm available for more informations !","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":193,"Q_Id":66688187,"Users Score":0,"Answer":"Perhaps you could simply store a \"lastUpdated\" timestamp on the row. With each update, you update that timestamp.\nNow, when you submit an update, you include that timestamp, and if the timestamps don't match, you let the user know, and handle the conflict on the frontend (Perhaps a simple \"overwrite local copy, or force update and overwrite server copy\" option).\nThat's a simple and robust solution, but if you don't want users wasting time writing updates for old rows, you could use WebSockets to communicate from a server to any clients with that row open for editing, and let them know that the row has been updated.\nIf you want to \"lock\" rows while the row is already being edited, you could simply store a \"inUse\" boolean and have users check the value before continuing.","Q_Score":0,"Tags":"python,database,ms-access,pyqt5,multi-user","A_Id":66688336,"CreationDate":"2021-03-18T09:26:00.000","Title":"How to handle multi-user database interaction with PyQt5","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":1,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am using a Bing Maps key in the geopy.geocoder.Bing package to get latitude and longitude of addresses in a dataset. It has been working just fine for the last 2 months and then suddenly today I am getting this GeocoderAuthenticationFailure: Non-successful status code 401 error. I am unsure if it is a problem with the geopy function itself or if there is something broken with the API. I just looked at the key in my Bing Maps account and everything looks fine. I created a new key to see if that would work but it gave me the same error. Does anyone know if this is an error with the API or if there is something I can do to fix this?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":135,"Q_Id":66698879,"Users Score":0,"Answer":"The error code came from a typo when calling the apikey variable from my env file. After fixing the typo it ran just fine.","Q_Score":0,"Tags":"python,api,bing-maps,geopy,geocoder","A_Id":66699490,"CreationDate":"2021-03-18T20:46:00.000","Title":"GeocoderAuthenticationFailure: Non-successful status code 401","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"For AWS Lambda handlers, does it matter if the code is async vs sync (eg async def vs def), with respect to the concurrency performance of multiple calls to that Lambda function? That is, if I write a synchronous function, will that function be called \"asynchronously\" anyway due to the way AWS internally handles Lambda invocations from separate calls? Or will the function start processing UserA, and queue UserB's request until it has completed UserA?\nBackstory: I'm writing some Python + SQLAlchemy Lambda functions. SQLAlchemy 1.4 just released asyncio support, but there will be some re-write overhead on my part. I'm wondering if I can just write traditional synchronous Python code without concurrency consideration on Lambda (where concurrency is something I'd definitely need to consider for custom Flask \/ FastAPI code).","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":417,"Q_Id":66714861,"Users Score":1,"Answer":"If you have more than one request to invoke a lambda at the same time the service will attempt to run multiple instances of the lambda. You may run into throttling due to the concurrency limits on either the lambda itself, or the account. Lambda does not queue requests to the same lambda function. A function is never processing more than one request at a time. Even in cases where the system is providing a queuing mechanism to handle the requests, they are not a thread queue, like you might have with a server. They are really just internal SQS queues that are invoking the lambda with one request at a time.","Q_Score":0,"Tags":"aws-lambda,python-asyncio","A_Id":66715034,"CreationDate":"2021-03-19T19:57:00.000","Title":"AWS Lambda: does it matter if handlers are sync vs async, w.r.t. concurrent calls?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"when I use browser.find_element_by_css_selector(\".LkLjZd ScJHi OzU4dc  \").click(),\nMessage: no such element: Unable to locate element: {\"method\":\"css selector\",\"selector\":\".LkLjZd ScJHi OzU4dc  \"}\nThis error occurs despite of element is that <button class=\"LkLjZd ScJHi OzU4dc  \" jsaction=\"click:TiglPc\" jsname=\"gxjVle\" style=\"font-family: Roboto, &quot;Noto Sans KR&quot;, sans-serif;\">total review<\/button>\nhow to click the butten....","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":81,"Q_Id":66721294,"Users Score":0,"Answer":"you can use the xpath of the element.\n\nInstall xpath Helper in your chrome.\nRefresh the page or close it and enter again.\nClick on addon from the toolbar.\nShift + click the element you needed.\nThan browser.find_element_by_xpath()\n\nPS: If it's a long string you can cut the start of it and replace with another \/.","Q_Score":0,"Tags":"python,selenium,selenium-webdriver,css-selectors","A_Id":66721356,"CreationDate":"2021-03-20T11:58:00.000","Title":"Is it possible to click button class in Selenium Python?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Does anyone have any good suggestions for where I can store my custom Python modules on Google Cloud Platform?\nI have a bunch of modules that I would like to access from the different GCP services I am using (App Engine, Compute Engine, Cloud Functions etc), without having to copy the Python files and upload to the service's Python environment each time.\nI was thinking GCS could be an option but then I am not sure how I would then get the module into, say Cloud Functions or App Engine?\nAny ideas?","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":50,"Q_Id":66726060,"Users Score":1,"Answer":"The code will eventually need to be written to your service's local storage. Python does not access code remotely during execution unless you write your code to do so (download the module and then execute). Package your code as modules and publish to PyPI and then add them as dependencies. When you deploy a service, your modules will be downloaded.","Q_Score":1,"Tags":"python,google-cloud-platform","A_Id":66726192,"CreationDate":"2021-03-20T20:14:00.000","Title":"Where to store my custom Python modules on GCP so they can be accessed by different GCP services?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":1,"Web Development":1},{"Question":"I wanted to add the numpy array as a field of my Django models using Django's default db.sqlite database. The \"ArrayField\" is not available with db.sqlite. Is there any option . Please Answer!","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":139,"Q_Id":66740874,"Users Score":0,"Answer":"You can't save array inside sqlite database. all you can do is convert your array in string with comma saparator . and after data fatch again do reverse process and convert it into array.\nEx: a=[1,11,2] to a= \"1,11,2\"\nafter data fatch convert to orginal array with split function.","Q_Score":0,"Tags":"python,django,database,sqlite,django-models","A_Id":66740937,"CreationDate":"2021-03-22T05:45:00.000","Title":"How to add Dyanmic Numpy Array field in Django Models","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Is it impossible to change the background color of a page, for example, on the Google home page, its possible to change the color from white to a black ?\nWhen I run a script and refresh the Google page, the background color is converted to black and when the script is closed, it returns to its natural color","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":130,"Q_Id":66742100,"Users Score":1,"Answer":"No, it's not impossible. But you can't change permanently a page with a script. If you shut down the script, the changes won't stay.\nTo do what you want, you need to make a extension for your browser. But I'm not sure if python is the best language to do that or if it can to that.","Q_Score":1,"Tags":"python","A_Id":66742130,"CreationDate":"2021-03-22T07:51:00.000","Title":"Change background color of html page with python","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am installing airflow on a Cent OS 7. I have configured airflow db init and checked the status of the nginx server as well its working fine. But when I run the airflow webserver command I am getting the below mentioned error*[2021-03-22 14:59:30 +0000] [9019] [INFO] Booting worker with pid: 9019 [2021-03-22 14:59:32,548] {filesystemcache.py:224} ERROR - set key '\\x1b[01m__wz_cache_count\\x1b[22m' -> [Errno 1] Operation not permitted: '\/tmp\/tmpdwzf56wm.__wz_cache' -> '\/tmp\/2029240f6d1128be89ddc32729463129'","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":2109,"Q_Id":66748803,"Users Score":0,"Answer":"You should execute airflow command as sudo.","Q_Score":6,"Tags":"python,nginx,webserver,airflow","A_Id":67261120,"CreationDate":"2021-03-22T15:10:00.000","Title":"airflow webserver command fails with {filesystemcache.py:224} ERROR - Operation not permitted","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"In my admin.py, I have a lot of ModelAdmin classes and I want them to all override a function, has_module_permission. I want to base the module permission off of the user's permissions for the model corresponding to the ModelAdmin, and to do that I need to know the model name in order to run request.user.has_perm('app.add_<model>') or something similar.\nI think an easy way of doing this is to create a class that has this function which is somehow able to get the model name, and then have each of the ModelAdmin classes inherit from that. The problem is that I don't know how to access the model's name from ModelAdmin. What's the best way of doing this?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":127,"Q_Id":66753140,"Users Score":0,"Answer":"If you just need the the model's name from ModelAdmin you can simply do the following: self.model.__name__","Q_Score":0,"Tags":"python,django,django-admin","A_Id":66753498,"CreationDate":"2021-03-22T20:06:00.000","Title":"Django overriding ModelAdmin classes with a function requiring Model name","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm using docker-compose to run a python API and a Localstack instance in 2 separate containers, for local development.\nThe API has an endpoint which generates a presigned AWS S3 URL and redirects the user, in order to load images directly from S3.\nIn local development, the API instantiates a boto3 client using the address of the localstack container as a custom endpoint url (ie: boto3.client(\"s3\",endpoint_url=\"http:\/\/localstack:4566\")) which allows the API to access resources within the localstack container.\nThe problem is that the presigned URL returned by the boto3 client uses the localstack address, and the browser cannot load it, since the localstack resources are exposed to the host machine, at http:\/\/localhost:4566.\nIf I try to set the aws resources endpoint url to localhost in the boto3 client instantiation, then the API, which is running inside of a container, will look for AWS resources within it OWN CONTAINER's localhost, and not the host machine, where the localstack resources are exposed.\nIs there any way to access localstack resources, running in a docker container, from both the host machine's browser AND a different container, using the same address?\n[Edit] I'm using docker on mac, in case that changes anything [\/Edit]","AnswerCount":3,"Available Count":1,"Score":0.0665680765,"is_accepted":false,"ViewCount":4441,"Q_Id":66767975,"Users Score":1,"Answer":"Perhaps you can give host.docker.internal:4566 a try, since most likely the localstack service will be the only one listening to it.","Q_Score":4,"Tags":"python,amazon-web-services,docker,localstack","A_Id":67388365,"CreationDate":"2021-03-23T17:11:00.000","Title":"Docker-compose: How to access Localstack resources both from container and host, using same network address","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I designed my java spring application to run a couple of python programs on same server and communicate with them. I run them with ProcessBuilder and communicate via InputStream\/OutputStream. \nNow I want to achieve that when I restart or shut down my java application, python apps didnt close. I can't get Process object by PID. With ProcessHandler object  I can't get input\/output streams. It seems that i should use some other mechanism of IPC. So the questions are:\n\nHow can I run external applications from java so they wouldn't close when java app restarts?\nHow can I achieve communication between java and python applications without having Process object?\n\nThanks in advance, sorry for poor language :)","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":99,"Q_Id":66769808,"Users Score":0,"Answer":"I give some suggestion on our project experience:\n\nIn single server, use docker-compose to run\/stop app no matter using java or python. In multi-server\uff0cthey will be deployed in Istio.\n\nuse Restful protocol to communicate between them.","Q_Score":0,"Tags":"java,python,spring","A_Id":66773533,"CreationDate":"2021-03-23T19:12:00.000","Title":"Communication between java spring server and python applications","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"i just started learning django and i am very confused in how to set up a virtual environment.\ni have successfully installed python:\nWhen i run python --version i get\nPython 3.8.1\nand when i run python3 --version i get\nPython 3.8.1\nMy first problem is when i run which -a  python3 i get this\n\/Library\/Frameworks\/Python.framework\/Versions\/3.8\/bin\/python3\n\/usr\/local\/bin\/python3\n\/usr\/bin\/python3\nCan someone help me understand why i have 3 locations where python3 exist?\nMy 2nd problem is i have successfully installed virtaulenv and virtualenvwrapper\nwhen i run virtualenv --version i get:\nvirtualenv 20.4.3 from \/Library\/Frameworks\/Python.framework\/Versions\/3.8\/lib\/python3.8\/site-packages\/virtualenv\/__init__.py\nand when i run virtualenvwrapper --version i get:\n-bash: virtualenvwrapper: command not found\nthats why when i run mkvirtualenv test i keep getting command not found.\nMy third problem is what is the difference between virtualenv test and mkvirtualenv test?","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":170,"Q_Id":66775192,"Users Score":1,"Answer":"If you are using Ubuntu you can follow the steps below\n\nGo to the folder where you intend to keep your Django project\nRun the command python -m venv env\nenv is the name of virtual env if python doesn't work try with python3\nactivate environment by source env\/bin\/activate env is the name of environment.\nInstall all dependencies make a new folder and import Django project in it.","Q_Score":0,"Tags":"python,python-3.x,virtualenv,virtualenvwrapper","A_Id":66775522,"CreationDate":"2021-03-24T05:23:00.000","Title":"Setting up virtual environment in Django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm building a SPA using Django for my backend and Vue to handle the entire frontend. The two apps are completely separated and they will communicate using JSON, so Django acts as an API. In order to avoid some security issue and keep using the standard Django session authentication, I'm going to run these two apps in production on the same sever and on the same port, and I will set up NGINX to route traffic, so that \/account\/login will be handled by Django while \/app\/someURL is redirected to the Vue application.\nHow can I do the same locally, during development? If I run manage.py runserver and npm run serve -- ---port 8000 the two apps will clash because there is no way to know where should each request be redirected.","AnswerCount":2,"Available Count":1,"Score":0.0996679946,"is_accepted":false,"ViewCount":335,"Q_Id":66778369,"Users Score":1,"Answer":"As you use npm just to serve the static content, you can easily serve the Vue app with the Django backend. If you want some pages to be rendered by Django and others by Vue, then you could create two base templates: one for pure Django pages and one for pure Vue pages that may use the vue-router library for routing.","Q_Score":0,"Tags":"python,django,linux,vue.js","A_Id":66778649,"CreationDate":"2021-03-24T09:43:00.000","Title":"How can I run a Django app and a Vue on the same port?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Here are the notes for my program, which I use to outline what exactly I want the program to do:\n\nGo to specific links at specific times. Ex. Go to Facebook at 12pm.\nLogin with username.\n(OPTIONAL) Send alert to phone about each time logged in.\n\nOnly thing is, I'm relatively new in programming so I need a little help knowing where to start on creating this.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":15,"Q_Id":66789408,"Users Score":0,"Answer":"I would use selenium if I were you. It allows you to automate web browser tasks, such as going to a site and logging in and such. You could keep a dictionary of sites, times, and usernames and use those accordingly. Sending an alert to your phone could be done in a number of ways. You could send an email using SMTP, a built-in python library, that would probably be the best method of communicating with other devices simply.","Q_Score":1,"Tags":"python","A_Id":66789466,"CreationDate":"2021-03-24T21:07:00.000","Title":"Opening multiple windows at set times","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"It's probably a dumb question but i cant find the answer anywhere. So, I have made a simple site with Flask and it have a database in SQL(SQLite3). I'have never uploaded a site before and I don't know how to get the data after deployed. Plz help.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":76,"Q_Id":66803446,"Users Score":0,"Answer":"If your code already works locally, make sure it has a relative path like '.\/data\/sqllitedb.db'.\nPut it in a folder that isn't available to access from your website.\nWhen you deploy to your website, it should use the same relative path.\nSqlite is great because it is just a local file and as long as you use relative paths to your main site, you should be able to access it","Q_Score":2,"Tags":"python,sql,sqlite,flask","A_Id":66803891,"CreationDate":"2021-03-25T16:10:00.000","Title":"How will I access the data in my database after uploading my site to the web?","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm trying to run \"python manage.py makemigrations\" but appears \"No changes detected\" . I had done changes so I don't know where is the problem. HELP!","AnswerCount":3,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":37,"Q_Id":66808419,"Users Score":0,"Answer":"Maybe you forget to save model file","Q_Score":1,"Tags":"python,makemigrations","A_Id":66808458,"CreationDate":"2021-03-25T22:23:00.000","Title":"Problems with \"Makemigrations\" in django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"My knowledge of networking is limited. So I might state the question wrong:\nSo as I understand that the code app.run(host='0.0.0.0'. Meaning you host on all of your current machine IP address.\nSo I suppose that hosting on app.run(host='10.0.0.0' mean that I am hosting on all IP address from range: 10.0.0.1 ~ 10.255.255.255.\nBut when I try to host on 10.0.0.0. The other machine on the same network cannot detect my flask service. (my machine ip address is 10.0.0.70, so I think 10.0.0.0 cover my machine ip address)\nSo there is flawed in my understanding, what is it?\n1\/ you can't host flask on 10.0.0.0\n2\/ 10.0.0.0 is not really the range of ip from 10.0.0.1 to 10.255.255.255\n3\/ something else.\nAn","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":84,"Q_Id":66824017,"Users Score":0,"Answer":"0.0.0.0 - 0.255.255.255 is reserved for software.\n10.0.0.0 - 10.255.255.255 is reserved for local addresses.\nIf you use 10.?.?.? then you have to enter the address to your address bar.","Q_Score":0,"Tags":"python,flask,networking","A_Id":66824083,"CreationDate":"2021-03-26T20:37:00.000","Title":"what does it mean to host on 10.0.0.0 IP address for flask webserver","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I build a Django site wheres requires all users to be authenticated using the standard authentication of Django. In some of the pages django will be doing Request to a third party site which also require authentication.\nThis third party site is not a django site and only has one user, this means that all django users will be sharing that 1 user to retrieve the information.\nThe authentication to this third party site, is with a JWT Flow. We first retrieve an auth token and then we send this token to the desire end point adding the Django user ID, to retrieve that user ID information.\nI want to avoid all users in django doing multiple request to get the same auth token as this should be the same for all of them.\nIs there a way in Django to storage this auth Token safely? and perhaps if a user fail due to expiry token, django retrieves a new one and keep it safely store for all users to use?","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":509,"Q_Id":66836817,"Users Score":0,"Answer":"You can store your token in environment variables. It's safety and multiple request of this var isn't problem, because default django is synchronous. So just store it in .env file and extract it with python_decouple package","Q_Score":0,"Tags":"python,django,session,django-sessions,django-cache","A_Id":66836918,"CreationDate":"2021-03-27T22:43:00.000","Title":"Django: safely store auth token to be share along all django users","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"In each of my collection entry, they have an array of Authors (in String format). I would like to present the authors as Strings in my HTML render of the page.\n    <p style=\"color: white\">Authors: {{i['authors']}}<\/p>\nThis is what I currently have, but it appears as:\nAuthors: ['Bernerd Allmon', 'Jeremy Anderson'] I would like it to appear as:\nAuthors: Bernerd Allmon, Jeremy Anderson instead.\nHow do I go about doing this?","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":52,"Q_Id":66849050,"Users Score":0,"Answer":"Can you take a screenshot of your code? So we can understand your code better.","Q_Score":0,"Tags":"python,mongodb,flask,jinja2","A_Id":66849333,"CreationDate":"2021-03-29T05:11:00.000","Title":"How to convert array from MongoDB to String in HTML?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"The website i scapped blocked me out by showing 406 Not Acceptable on the browser. It might i mistakenly sent too many requests at once on phython code.\nSo i put time.sleep(10) for each loop to not make it look like a DDoS attack, and it seems worked out.\nMy questions are:\n\nHow long would it be reasonable to send between each request? Sleep 10 seconds for each loop makes my code running too slow.\n\nHow to fix the 406 Not Acceptable error on my browsers? They still block me out, only if i chance my ip address but it's not permanent solution.\n\n\nThank you all for your answers and comments. Good day!","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":84,"Q_Id":66867975,"Users Score":1,"Answer":"Any rate-limit errors are all subject to which website you choose to scrape \/ interact with. I could set up a website that only allows you to view it once per day, before throwing HTTP errors at your screen. So to answer your first question, there is no definitive answer. You must test for yourself and see what's the fastest speed you can go, without getting blocked.\nHowever, there is a workaround. If you use proxies, then it's almost impossible to detect and stop the requests from executing, and therefore you will not be hit by any HTTP errors. HOWEVER, JUST BECAUSE YOU CAN, DOESN'T MEAN THAT YOU SHOULD- I am a programmer, not a lawyer. I'm sure there's a rule somewhere that says that spamming a page, even after it tells you to stop, is illegal.\nYour second question isn't exactly related to programming, but I will answer it anyways- try clearing your cookies or refreshing your IP (try using a VPN or such). Other than changing your IP or cookies, there's not many more ways that a page can fingerprint you (in order to block you).","Q_Score":1,"Tags":"python,http-status-code-406","A_Id":66868100,"CreationDate":"2021-03-30T09:11:00.000","Title":"'406 Not Acceptable' after scaping web using python","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Robot Framework supports two ways to interact with the tests and modify the test structure:\n\nthe visitor internal API\nthe listener API\n\nI would like to prepend, to specific tests, a given keyword, or even more precisely to wrap the test in a given keyword, if that test has a specific tag. Which of the two approaches should I choose, and how I should use the API of the Body of Robot Framework to wrap it in a Wait Until Keyword Succeeds?","AnswerCount":2,"Available Count":1,"Score":0.0996679946,"is_accepted":false,"ViewCount":582,"Q_Id":66890396,"Users Score":1,"Answer":"I think the Listener API might be the way to go but why not use the Test and Suite Setup Keywords to be able to pull off what you are trying to do. However, in general, i.e. not just in Python or Robot Framework, it is a bad idea to have one test depend on the execution of another test. Ideally, each test should be able to run on its own, whether first or last or anywhere in the sequence so perhaps there might be a need to refactor your tests and\/or Keywords to be able to achieve what you are attempting.","Q_Score":2,"Tags":"python,robotframework","A_Id":66894693,"CreationDate":"2021-03-31T15:04:00.000","Title":"Wrapping a test case in Robot Framework in keyword based on the tag of a test","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have created project and even i have client_secret.js file, when i try to run the program first time it asks to login, when I tried to login through gmail (which I have used to create project) it says\n\n\"Google hasn\u2019t verified this app\"\n\nMessage, so for that i'm looking how to get out from this step.","AnswerCount":2,"Available Count":1,"Score":-0.0996679946,"is_accepted":false,"ViewCount":71,"Q_Id":66899042,"Users Score":-1,"Answer":"This is occuring because the application you created is not verified by google so you are not able to login in that you need to verify it by google suite and then you are able to login I also get that problem when i tried to create an browser for myself","Q_Score":1,"Tags":"python-3.x,google-sheets,google-drive-api,google-oauth,google-developers-console","A_Id":66899090,"CreationDate":"2021-04-01T05:49:00.000","Title":"How to read files from Google drive through python when it says Google hasn\u2019t verified this app?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am new to pgsql, can not configure this error while I'm trying to makemigration in the Django-rest app.\nwhat should I install? I've installed the requirements.txt which consists of :\nPyJWT==1.7.1 pytz==2021.1 sqlparse==0.4.1 psycopg2>=2.8 psycopg2-binary>=2.8 python_dotenv==0.16\nthe error:\n\ncould not connect to server: Connection refused (0x0000274D\/10061)\nIs the server running on host \"localhost\" (127.0.0.1) and accepting\nTCP\/IP connections on port 5432?","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":69,"Q_Id":66899741,"Users Score":1,"Answer":"The Db server is offline so you'll need to enable this. for windows do the following:\nStart -> Control panel -> Administration -> Services -> postgresql-x64-12 - start or restartc\nYou should be fine to make the migrations once the server is running. It is possible you may need to check the config in your settings but after that you should be good to go :)","Q_Score":0,"Tags":"python,django,database,postgresql","A_Id":67177630,"CreationDate":"2021-04-01T06:55:00.000","Title":"Unable to makemigrations while using postgres","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am developing a JupyterLab Notebook and I need to embed a website for interaction with a dashboard from within the same notebook. This would be quite straight-forward using an IFrame.\nHowever, to access this website, that I launch on my public server, JWT authentication is required so I need to send an additional header with the token. Which is the best way to do this? I am not familiar with HTML and JS so I am wondering where to start from.\nThanks a lot for your help!","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":127,"Q_Id":66909734,"Users Score":0,"Answer":"Finally, I solved this issue by sending the token in the URL params using SSL traffic.","Q_Score":3,"Tags":"javascript,python,html,iframe,jupyter-lab","A_Id":67059981,"CreationDate":"2021-04-01T18:24:00.000","Title":"Display IFrame IPython with custom auth headers","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to deploy my Django application to gcloud and I keep getting this error, any ideas what this means?\nFile upload done.\nUpdating service [default]...failed.\nERROR: (gcloud.app.deploy) Error Response: [9] Cloud build c90ad64e-2c2f-4ad0-a250-160de6f315df status: FAILURE\nError ID: c84b3231\nError type: UNKNOWN","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":388,"Q_Id":66923622,"Users Score":1,"Answer":"never mind, I found out the error was due to a build error, I had an unused pip install in my requirements.txt file. I deleted it and everything is working now.","Q_Score":0,"Tags":"python,django,ubuntu,gcloud","A_Id":66923685,"CreationDate":"2021-04-02T18:23:00.000","Title":"ERROR: (gcloud.app.deploy) Error Response: [9] Cloud build c90ad64e-2c2f-4ad0-a250-160de6f315df status: FAILURE","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"Background information about my project:\nI'm building a CV\/Resume generator that automatically creates a CV\/Resume based on the user filling out a form. I'm using a Django Crispy Form which has a submit button at the end that, when clicked, submits the user's input to a SQL database and redirects the user to their newly built CV\/Resume (as a PDF).\nWhat I need help with:\nThe goal is to have a form on the left side of the screen and a live view (HTML\/CSS) of the CV\/Resume on the right side, where the live view updates as the user is filling out the form.\nI've seen this kind of thing before, but never for a Django project (they tend to use JavaScript\/React).\nWhat I'm thinking:\nCould I have a background process that does something like, when the user makes a change (e.g. is filling out the form), submit any new inputs to the SQL database every 5 seconds? Then the live view can extract any new inputs from the database and display it in real time?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":123,"Q_Id":66935806,"Users Score":0,"Answer":"It might be possible to do something like that with ajax requests, but I wouldn't recommend it. It would be better to render a simulation of it in the browser with javascript html and css. That way you avoid many many needless post requests before the user is ready to submit the form.","Q_Score":0,"Tags":"python,django,django-crispy-forms","A_Id":66935968,"CreationDate":"2021-04-03T20:58:00.000","Title":"How to make Django Form repeatedly submit in background while user is filling it in?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"What does the above field specify for Django .\nmodels.BooleanField(default=False, null=True) . Does this mean Default value is False \/ null.","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":171,"Q_Id":66938651,"Users Score":1,"Answer":"It means the default value for that field is False. But also it can be empty without any values","Q_Score":0,"Tags":"python,django","A_Id":66938667,"CreationDate":"2021-04-04T06:41:00.000","Title":"Django bool field explain default is False and null is True","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am planning to use a same user model for two different users with some additional fields in one model. Is it possible to do this in Django? If it is possible, how can I do it?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":42,"Q_Id":66943719,"Users Score":0,"Answer":"You have two options :\nFirstly\nYou create a new Model (call it ExtendedUser) and you put the extra fields in that model.\nYou then set your ExtendedUser model to inherit from your MainUser model. This will create two tables with a one to one link between them.\nThe advantage of this is that your ExtendedUser model will inherit any methods defined in your original MainUser model, and you only need add methods to the ExtendedUser model if you absolutely have to. You can also write functions which can deal with both the MainUser and ExtendedUser models easily, since they are all instances of the MainUser model. One of the benefits of using inhertiance is if you write a query on the ExtendedUser model fetching all fields, it well fetch the MainUser fields too.\nA Second (worse) option :\nHave a single extended model with a flag on it which says whether to use the extra fields. This can be made to work, but will make your queries more complex, and if you need the extra fields to be indexed, the indexes are likely to be a bit less efficient.\nNote : having a second table with a relationship between the two is no bad thing in SQL - that is how data is normally managed. Having special optional fields for some types of users isn't great as mentioned.","Q_Score":0,"Tags":"python,django,authentication","A_Id":66943833,"CreationDate":"2021-04-04T16:55:00.000","Title":"Different user with more fields in the same model in Django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have written a Python REST API using FastAPI. It connects to Janus Graph on a remote machine and runs some Gremlin Queries using the GremlinPython API. While writing my unit tests using FastAPI's built in test client, I cannot mock Janus Graph and test my APIs. In the worst case I need to run Janus on docker in my local setup and test there. However, I would like to do a pure unit test. I've not come across any useful documentation so far. Can anyone please help?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":152,"Q_Id":66947065,"Users Score":0,"Answer":"I think running Gremlin Server locally is how a lot of people do local testing. If you do not need to test data persistence you could configure JanusGraph to use the \"inmemory\" backend and avoid the need to provision any storage nodes.","Q_Score":0,"Tags":"python-3.x,gremlin,fastapi,janusgraph,gremlinpython","A_Id":67140525,"CreationDate":"2021-04-05T00:40:00.000","Title":"How to unit test Gremlin Queries on JanusGraph using FastAPI and GremlinPython","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a develop env (local run on windows pycharm terminal with --insecure set) that is working properly with this plugin DjangoQLSearchMixin - I can see it on the search engine.\nBut for some reason it is not activated on the production admin panel (nginx + ubunto + django).\nDjango version and plugin are the same.\nThe code is the same, not sure what went wrong.\nMaybe I need to recreate static files ?\nSuggestions ?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":45,"Q_Id":66957944,"Users Score":0,"Answer":"Fixed by recreating the statis css files\npython manage.py collectstatic\nThanks.","Q_Score":0,"Tags":"python,django","A_Id":66982025,"CreationDate":"2021-04-05T18:31:00.000","Title":"django development show plugin (DjangoQLSearchMixin) but not in production","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"If an application developed to support only HTTP. What configuration we should do in google app engine, that it force developer to have HTTPS support. We can add an entry(for handler) in \"app.yaml\", but in order to redirection. Just want to know anything else we can do to prevent such thing(in short should work with HTTPS only). Probably we can do something from ingress\/loadbalancer\/ssl etc but that's looks paid and don't want that currently.","AnswerCount":2,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":45,"Q_Id":66964748,"Users Score":0,"Answer":"You just have to set secure: always in app.yaml for your route handlers. Any call to your app from http will automatically get redirected to https","Q_Score":0,"Tags":"https,google-app-engine-python","A_Id":66970984,"CreationDate":"2021-04-06T07:56:00.000","Title":"Force HTTPS for app deployed in google app engine","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"While using robot framework in windows 10 the python -m robot is launched with admin privileges. Does this mean admin privileges will be passed down to all sub processes that are started?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":51,"Q_Id":66974254,"Users Score":0,"Answer":"Yes, admin privileges will be passed into sub-processed. I would not recommend to run test with admin privileges, the safest and recommended way is to use virtualenv without admin privileges.","Q_Score":0,"Tags":"python,windows-10,robotframework,uac","A_Id":66996759,"CreationDate":"2021-04-06T18:14:00.000","Title":"Robot Framework uac windows 10","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I am trying to run a django project on an EC2 server, however, when I run python3 manage.py runserver, it returns this error, django.core.exceptions.ImproperlyConfigured: SQLite 3.9.0 or later is required (found 3.7.17).. I then check to see what version of SQLite3 is running on my python installation on my EC2 server by running sqlite3.sqlite_version, and it returns 3.7.17. So I then try to update SQLite3 using the default AWS EC2 Amazon Linux package manager, yum, by running yum install sqlite. It then returns this, Package sqlite-3.7.17-8.amzn2.1.1.x86_64 already installed and latest version, even though it is not the latest version. How can I install the latest version of SQLite3 to fix this?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":567,"Q_Id":66976802,"Users Score":0,"Answer":"I had the same problem. Since my app is very small with little dependency, I was able to quickly switch to EC2 sever running Ubuntu. It is necessary to learn how to use Ubuntu (apt).\nYou can find right now in the installation:\nPackage: sqlite3\nVersion: 3.31.1-4ubuntu0.2","Q_Score":2,"Tags":"python,django,amazon-web-services,sqlite,yum","A_Id":67312816,"CreationDate":"2021-04-06T21:39:00.000","Title":"How can I fix Django SQLite3 error on AWS?","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm currently developing a project to store all of my old MP3 files. This project contains multiple applications(Artist, Album, Song) and I'm simply curious to know if it is common for developers to create a separate application which may be named something like 'Dashboard' and use this to host their homepage, login\/logout functionality, search features, recently uploaded items, etc. Or is it more common to just stick your homepage into an existing app?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":20,"Q_Id":66989256,"Users Score":0,"Answer":"I wouldn't call an approach best practice, however certain practices are commonly used-\n\ncore app is created where it's a small project (i.e. probably three or less models and around five views). Dashboard can be a template in this app. You're correct, usually it's common to stick your homepage into an existing app.\naccount app is created to keep the authentication system separate.\n\nOther approaches are also good.","Q_Score":0,"Tags":"python,html,django","A_Id":66989384,"CreationDate":"2021-04-07T15:27:00.000","Title":"Index\/Dashboard\/Homepage Best Practice and Customs","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to find a way to add a  new task to celery after celery worker has been executed and after celery has been instantiated.  I basically want to add a new task with a dynamic name based on user input.  I will also want to set a rate limit for that new task.\nI have not been able to find any documentation on this and no examples on my google searches. All I have been able to find is dynamically adding periodic tasks with celery beat.\nIs there any way to do what I am looking to do?","AnswerCount":2,"Available Count":1,"Score":0.0996679946,"is_accepted":false,"ViewCount":172,"Q_Id":66995852,"Users Score":1,"Answer":"What you want to achieve is not trivial. I am not aware of any distributed system similar to Celery that allows such thing.\nThe only way perhaps to do it is to dynamically create and run a new Celery worker with the new task added and configured the way you prefer...","Q_Score":2,"Tags":"python,celery","A_Id":67000136,"CreationDate":"2021-04-08T00:33:00.000","Title":"Add dynamic task to celery","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I am trying to prepare a custom ner model in spacy v3.\nV3 has changed significantly as compared to v2 from training perspective.\nI am Using the default config with en_web_lg.\nI have prepared the training data (training.spacy) using convert command.\nHowever, the training command needs a dev.spacy file.\nNot sure what data is expected there in dev.spacy.\nIs this asking a plain text corpus for the training.spacy file?\nBut then is there a way to convert the plain text file in spacy format..\nCommand from spacy site-\npython -m spacy train config.cfg --output .\/output --paths.train .\/train.spacy --paths.dev .\/dev.spacy\nCan someone pls help explain on how to prep the dev.spacy.","AnswerCount":2,"Available Count":2,"Score":1.2,"is_accepted":true,"ViewCount":576,"Q_Id":66997147,"Users Score":3,"Answer":"The train.spacy is a placeholder for collection of 'training' files - a directory of files usually using the Spacy convert utility.\nThe dev.spacy is a placeholder for collection of 'validation' files - same format as training files, but used as a validation sample during training (for NER used to compute the prediction, recall and f-score after each training iteration).\nCommonly suggested 'size' of validation sample is between 10 to 20% of training sample.\nI tend to use 20% because my data has a large variation - but larger validation sample adds training overhead.","Q_Score":2,"Tags":"python,spacy-3","A_Id":67093613,"CreationDate":"2021-04-08T03:59:00.000","Title":"Train NER in spacy v3 needs dev.spacy at command line","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to prepare a custom ner model in spacy v3.\nV3 has changed significantly as compared to v2 from training perspective.\nI am Using the default config with en_web_lg.\nI have prepared the training data (training.spacy) using convert command.\nHowever, the training command needs a dev.spacy file.\nNot sure what data is expected there in dev.spacy.\nIs this asking a plain text corpus for the training.spacy file?\nBut then is there a way to convert the plain text file in spacy format..\nCommand from spacy site-\npython -m spacy train config.cfg --output .\/output --paths.train .\/train.spacy --paths.dev .\/dev.spacy\nCan someone pls help explain on how to prep the dev.spacy.","AnswerCount":2,"Available Count":2,"Score":0.1973753202,"is_accepted":false,"ViewCount":576,"Q_Id":66997147,"Users Score":2,"Answer":"The dev.spacy file should look exactly the same as the train.spacy file, but should contain new examples that the training process hasn't seen before to get a realistic evaluation of the performance of your model.\nTo create this dev set, you can first split your original data into train\/dev parts, and then run convert separately on each of them, calling the larger one train.spacy and the smaller one dev.spacy. As @mbrunecky suggests, an 80-20 split is usually good, but it depends on the dataset.","Q_Score":2,"Tags":"python,spacy-3","A_Id":67111812,"CreationDate":"2021-04-08T03:59:00.000","Title":"Train NER in spacy v3 needs dev.spacy at command line","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Imagine this business logic.  I'm buying a tshirt from a store that runs microservices and uses Kafka. When I submit my order the web back end saves my order and kicks out two async requests:\n\nPayment Service that handles authorizing my payment (credit card stuff).\nUser Service that handles creating my user account (email confirmation step).\n\nBoth of those services write to their own kafka topics when they've finished.  The web back end subscribes to these topics and when an event comes in it updates the order.  Once the order back end has confirmed my user and payment information, it will send that order off to be fulfilled.\nHow do you prevent race conditions when both events come back at the same time?\n\nIf two processes both update the order at the same time, it never\nsees the complete order and you risk having complete orders that\nnever get fulfilled.\n\nIf two processes both update and then immediately requery, they\ncould both see a complete order and then we fulfill the order twice.\n\n\nThanks!","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":941,"Q_Id":67005492,"Users Score":1,"Answer":"Whatever method you choose you will need some sort of synchronization point or total ordering. A few approaches are below.\nYou could serialize your writes via transactions to some DB under the hood and only execute the fulfillment after both events have arrived (check for both events on either event write). Up to you to use pessimistic\/optimistic locking here and if it is feasible for your DB selection and expected loads.\nOr you could create 1 topic and partition these writes by some unique identifier so that both events go to the same partition thus to the same Kafka consumer. This avoids race conditions assuming your consumers are single threaded. To do that just add that identifier (user-id, tx id etc) to the Kafka key to make any event sent with that key go to the same partition and avoid multi-partition race conditions. This approach has the downside of having multiple event types in 1 topic but I have seen this firehose pattern used effectively before to provide ordering.","Q_Score":0,"Tags":"python,apache-kafka","A_Id":67014217,"CreationDate":"2021-04-08T13:54:00.000","Title":"How to avoid race conditions in Kafka","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I have a running Django application in my local system and I want to transfer and run the same to another machine in the same network. But, the destination machine cannot use PIP cmd to install dependencies as it does not have internet connectivity. Any ideas to transfer the project are appreciated.","AnswerCount":3,"Available Count":2,"Score":0.0665680765,"is_accepted":false,"ViewCount":82,"Q_Id":67016349,"Users Score":1,"Answer":"You might have to install the packages in virtual environment and transfer the virtual environment folder to the another system as well.\nNote: This may not work if the other system dependencies are different which are required by the app.\nor simply download packages using pip download <package_name> and transfer the downloaded packages to other system and install there.","Q_Score":0,"Tags":"python,python-3.x,django,virtualenv,web-deployment","A_Id":67016411,"CreationDate":"2021-04-09T06:50:00.000","Title":"How to migrate a Django web app from local machine to another machine[with no internet; can't use PIP] as deployable app","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a running Django application in my local system and I want to transfer and run the same to another machine in the same network. But, the destination machine cannot use PIP cmd to install dependencies as it does not have internet connectivity. Any ideas to transfer the project are appreciated.","AnswerCount":3,"Available Count":2,"Score":1.2,"is_accepted":true,"ViewCount":82,"Q_Id":67016349,"Users Score":0,"Answer":"The system I was using is RedHat and the libs I downloaded were in CentOs and then the Django failed to start due to system dependency. Then, I tried to installing all packages in a free AWS EC2 RedHat instance and then compressed the libs together and transferred to the local machine. It worked for me.","Q_Score":0,"Tags":"python,python-3.x,django,virtualenv,web-deployment","A_Id":67269767,"CreationDate":"2021-04-09T06:50:00.000","Title":"How to migrate a Django web app from local machine to another machine[with no internet; can't use PIP] as deployable app","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have image processing application written in python consists of CRNN model, and I want to take an image from my android application and send it to the image processing and receive back a response from it.\nwhat should I use to make it done.","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":70,"Q_Id":67024211,"Users Score":1,"Answer":"I would create a server that deals with the logic (in python) and make the app communicate with it over HTTP requests.\nThe app would send the image to the server, the server would process it, and then send the output to the app.","Q_Score":0,"Tags":"java,python,android,django,image-processing","A_Id":67024417,"CreationDate":"2021-04-09T15:43:00.000","Title":"how can I connect my image processing application in my android application","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":1,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"When I run time.mktime(datetime.strptime(\"2012-03-09\", \"%Y-%m-%d\").timetuple())\nI get the value 1331251200.0.\nNow I want to know how can I invert this? So if I pass in 1331251200.0, how do I get as output 2012-03-09? I know strftime is the inverse of strptime, but I don't see how to invert the whole thing because of the timetable function.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":31,"Q_Id":67029057,"Users Score":0,"Answer":"So the way to do this is by time.strftime(\"%Y-%m-%d\", time.localtime(time.mktime(datetime.strptime(\"2012-03-09\", \"%Y-%m-%d\").timetuple()))).\nI didn't know strftime would turn the timetable to a string before I asked.","Q_Score":0,"Tags":"python,datetime,python-datetime","A_Id":67029130,"CreationDate":"2021-04-09T22:35:00.000","Title":"How do I find the date string from the numeric value?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"Problem\nWhen trying to access and purchase a specific item from store X, which releases limited quantities randomly throughout the week, trying to load the page via the browser is essentially pointless. 99 out of 100 requests time out. By the time 1 page loads, the stock is sold out.\nQuestion\nWhat would be the fastest way to load these pages from a website -- one that is currently under high amounts of stress and timing out regularly -- programmatically, or even via the browser?\nFor example, is it better to send multiple requests and wait until a \"timed out\" response is received? Is it best to retry the request after X seconds has passed regardless? Etc, etc.\nTried\nI've tried both solutions above in browser without much luck, so I'm thinking of putting together a python or javascript solution in order to better my chances, but couldn't find an answer to my question via Google.\nEDIT:\nJust to clarify, the website in question doesn't sporadically time out -- it is strictly when new stock is released and the website is bombarded with visitors. Once stock is bought up, the site returns to normal. New stock releases last anywhere from 5 minutes to 25 minutes.","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":48,"Q_Id":67030593,"Users Score":0,"Answer":"The best way is to inspect the website and find out how the http query's are done. Maybe a special buy  There is no fastest way because you want to load from a server that is stressed, you will have the same 'luck', as others. You could decrease theping of your internet, but will do minimal good.","Q_Score":0,"Tags":"javascript,python,selenium,bots,puppeteer","A_Id":67034331,"CreationDate":"2021-04-10T03:42:00.000","Title":"Best way to increase odds of connecting to a server that is temporarily timing out due to an influx of visitors?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Problem\nWhen trying to access and purchase a specific item from store X, which releases limited quantities randomly throughout the week, trying to load the page via the browser is essentially pointless. 99 out of 100 requests time out. By the time 1 page loads, the stock is sold out.\nQuestion\nWhat would be the fastest way to load these pages from a website -- one that is currently under high amounts of stress and timing out regularly -- programmatically, or even via the browser?\nFor example, is it better to send multiple requests and wait until a \"timed out\" response is received? Is it best to retry the request after X seconds has passed regardless? Etc, etc.\nTried\nI've tried both solutions above in browser without much luck, so I'm thinking of putting together a python or javascript solution in order to better my chances, but couldn't find an answer to my question via Google.\nEDIT:\nJust to clarify, the website in question doesn't sporadically time out -- it is strictly when new stock is released and the website is bombarded with visitors. Once stock is bought up, the site returns to normal. New stock releases last anywhere from 5 minutes to 25 minutes.","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":48,"Q_Id":67030593,"Users Score":0,"Answer":"There can be so many reasons why you are getting so many request timeouts from the server. It may be from your client application or from the server application settings (to reduce unfavorable request behaviours from certain clients) or a simple DNS resolution taking too long. One thing that is sure though is that bugging the server with so many requests at a time will definitely not guarantee you less timeouts, but may aggravate the situation.\nOne way you can solve the problem (if you don't have control of the server side) is to monitor the server application behaviour from your end for at least a day or two. A simple script that sends test requests at regular intervals might do the trick. You can measure parameters like request resolution time, frequency of failed requests, and type (cause) of failure (if that is deducible). These parameters can be measured over a given period of time (a day or two) to know statistically when it is more favourable to make request to the server. This \"profiling\" of the server may not always be accurate but can be done regularly with better thought out parameters to get better results. BTW... Enough data may even benefit from some AI data analytics :).","Q_Score":0,"Tags":"javascript,python,selenium,bots,puppeteer","A_Id":67034686,"CreationDate":"2021-04-10T03:42:00.000","Title":"Best way to increase odds of connecting to a server that is temporarily timing out due to an influx of visitors?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I would like to load\/check the new content that has been loaded to a section of a page. Some pages update all the time, but the section that I want updates only once in couple hours or minute. Although, no one knows when there will be the new content uploaded to that section. This can happen 24\/7. What I want to accomplish is whenever there is a new content upload to that section, do something immediately(in this case, go into the link and load the page). The only thing I can think of as of now is checking that section of the page as frequent as possible, ie. every 30 seconds, every minute. However, there are thousands of pages(~6000 roughly) that I want to check on. I don't think this is an ideal way to do, let alone if that's possible for the frequency I want.\nI'm just wondering if there is a way to do it without asking my bot to scrape every single minute for each page?","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":40,"Q_Id":67040149,"Users Score":1,"Answer":"Nope, there is no magic spell here.  Web pages do not have a \"notification\" option.  If you want the info, you'll need to poll for the info.  Yes, it's going to be wasteful, which is why you should ask yourself why you are doing this.","Q_Score":0,"Tags":"python,web-scraping,scrapy","A_Id":67040163,"CreationDate":"2021-04-10T23:22:00.000","Title":"Is there a way to monitor a page 24\/7 and when there is an update, load the new content","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am planning to implement my own very simple \"hashing\" formula to add a layer of security to an app with multiple users. My current plan is as follows:\n\nUser creates an account at which point an ID is generated on the backend. The ID is run through a formula (let's say ID * 57 + 8926 - 36 * 7, or something equally random). I then send back to the frontend the new user ID and the new \"hashed\" number and store them in localStorage.\nUser tries to access a secured area (let's say a settings page so they can change their own settings).\nI send the backend two values: their ID and the hashed number. I run the ID through the same formula to check it matches the hashed value I've received. If the check passes, they can get in. So if someone has tried, say, changing their ID in localStorage to get access to another user's settings page, the only way they could achieve that is if they guess what the formula was. They could easily guess a user ID, but guess that the corresponding number is the result of ID * 57 + 8926 - 36 * 7 seems pretty unlikely.\n\nI'm doing this because it would be quicker\/cheaper than a db lookup for an actual hashed value... I think? Would it make more sense to use a package to create some kind of primary key\/uuid instead of \"hashing\" my own value and doing a db lookup each time?\nTech stack: React on FE, Python on BE, SQL db.","AnswerCount":2,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":69,"Q_Id":67054405,"Users Score":2,"Answer":"I see a lot of posts saying \"don't roll your own\" -- is this absolute?\n\nYes it is. The reason being that whenever a non-cryptographer tries their hand at developing their own algorithms, they invariably fall into a multitude of pit holes which render the security of the algorithm to next to useless.\nYour particular scheme, for example, can be trivially broken given two consecutive ID and \"hash\" pairs. (It's a simple arithmetic sequence, deriving the formula of an arithmetic sequence given two consecutive values is grade ~6 level math.)\n\nI'm doing this because it would be quicker\/cheaper than a db lookup for an actual hashed value...\n\nThe performance difference would probably be negligible. Don't worry about it.\nIf the information is not particularly sensitive, just assign each user a randomly generated 128 bit number. The chances of someone guessing a valid user's number are practically zero.","Q_Score":0,"Tags":"javascript,python,sql,security,backend","A_Id":67055434,"CreationDate":"2021-04-12T07:45:00.000","Title":"Is there any reason why you shouldn't perform your own algorithm to scramble IDs for security purposes?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Is a very simple page, that have some buttons redirecting to external links. That external links have to change arbitrarely when certain people decides it.\nI was wondering about making a login screen in other page and depending which user logs in, set the link writting it in a txt file that would be recovered by the main page. Don't need security so i just would make the user go to the other page and login and that would change the link in a txt file hosted in the same directory that the index.html is.\nThe problem is that i cannot make that idea (writing a .txt in the project folder) with JavaScript (or i think so), and i don't think that using a database worth it (neither want to because i read that would have to use node.js or something like that and i really don't know those tecnologies, only some python and sql server -that is in fact not supported by my hosting service-), cause are just 3 people associated to 1 link each. I can easily make that task with python but don't know how to call it from JS and neither if Ajax request would be useful for this case.\nI hope someone can help me!\nedit - the changes have to apply for the page itself not in the user session, so everyone who enters see the page with the changes\nedit 2 - absolutely all the info (users and links) are always the same, doesnt change so i can put it in variables, are just 4 or 5 so i can easily use an array, the only thing that i would have to register is which one to pick (since it depends on who decides it).","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":31,"Q_Id":67057096,"Users Score":0,"Answer":"IT seems you want to use some sort of client side storage across different html pages - for that, you can use cookies, localSotrage or sessionStorage.","Q_Score":0,"Tags":"javascript,python,html,css","A_Id":67057191,"CreationDate":"2021-04-12T10:52:00.000","Title":"How can I make an one-user input have consequences in the behaviour of all page?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"How can delete all of user's linked accounts without having to make multiple API calls for each account or unregistering the user? I currently using documented \/accounts\/ endpoint to delete each one however sending a separate requests for each deletion takes far too long for users with multiple accounts.","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":94,"Q_Id":67091698,"Users Score":0,"Answer":"You can unregister the user which effectively deletes all of the user\u2019s accounts.","Q_Score":0,"Tags":"python-3.x,yodlee","A_Id":67121613,"CreationDate":"2021-04-14T12:23:00.000","Title":"Yodlee: How to delete every user's linked accounts in a single API call","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am developing a code using python and Django for web scraping. I have provided the required url and already fetched the data.\nBut there is a tab on the url saying \"show more results\".\nHow can I make my Django project to click on that tab of \"show more results\" on the url and the fetch the new results now.\nI have used Beautiful Soup library for web scraping\/","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":25,"Q_Id":67103986,"Users Score":0,"Answer":"BeautifulSoup is an HTML parser and nothing more, if you want to automate clicking and so on you have to use other tools such as selenium.\nAnother idea might be getting the URL of \"Show more results\" and scrape the stuff that it loads. I assume it is loading the thing dynamically so look at your Network Tab (Ctrl+Shift+i then Network) and see which URL it is loading you may be able to scrape it.","Q_Score":0,"Tags":"python,python-3.x","A_Id":67104104,"CreationDate":"2021-04-15T07:22:00.000","Title":"how to make django project click on a particular tab of a url","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"In my code I need to get only the main text not the header or footer data. I also would like to filter out any html\/css\/js code that is received with the request. How would I do this? I have tried making a request with requests, looking through the data with  beautiful soup and then printing the body content. The issue with this is that it is also picking up the footer and header contents. Thanks for any responses in advance!","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":387,"Q_Id":67119560,"Users Score":1,"Answer":"Use the browser developer tools (Usually F12) to find out what element contains the content you are looking for. Usually content other than headers and footers will be in <section> or <article> elements.\nYou can then use something like soup.article.get_text() to retrieve text from the containing element.","Q_Score":0,"Tags":"python,python-3.x,beautifulsoup,python-requests,request","A_Id":67120465,"CreationDate":"2021-04-16T05:26:00.000","Title":"Python beautiful soup get only body content without header or footer data","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I can list the files in the source bucket but when I try to download them I am getting \"Client error 403\" , the source team has server side encryption AES256 enabled.\nSo when I try :\nclient.download_fileobj(bucket, file, f, ExtraArgs={\"ServerSideEncryption\": \"AES256\"})\nI am getting ValueError: Invalid extra_args key 'ServerSideEncryption', must be one of: VersionId, SSECustomerAlgorithm, SSECustomerKey, SSECustomerKeyMD5, RequestPayer\nHow can I fix this issue?","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":465,"Q_Id":67129240,"Users Score":1,"Answer":"It should work without mentioning ExtraArgs={\"ServerSideEncryption\": \"AES256\"}.\nWhen SSE algorithm is AES256, you don't need to mention that while downloading object, only while uploading it.\nWhile downloading it, you need to make sure that the credentials, you are using to download the object, have access to the key that is used to encrypt the object.","Q_Score":0,"Tags":"python,amazon-s3,boto3,amazon-kms","A_Id":67163065,"CreationDate":"2021-04-16T16:49:00.000","Title":"Download files with server side encryption SSE AES256 using boto3","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a conda virtual environment called scrape where I have scrapy installed. But whenever I type in the command scrapy shell I get the following error.\n$ scrapy shell Traceback (most recent call last): File \"C:\\Users\\Ravi\\anaconda3\\envs\\scrape\\Scripts\\scrapy-script.py\", line 6, in <module> from scrapy.cmdline import execute File \"C:\\Users\\Ravi\\anaconda3\\envs\\scrape\\lib\\site-packages\\scrapy\\__init__.py\", line 12, in <module> from scrapy.spiders import Spider File \"C:\\Users\\Ravi\\anaconda3\\envs\\scrape\\lib\\site-packages\\scrapy\\spiders\\__init__.py\", line 11, in <module> from scrapy.http import Request File \"C:\\Users\\Ravi\\anaconda3\\envs\\scrape\\lib\\site-packages\\scrapy\\http\\__init__.py\", line 11, in <module> from scrapy.http.request.form import FormRequest File \"C:\\Users\\Ravi\\anaconda3\\envs\\scrape\\lib\\site-packages\\scrapy\\http\\request\\form.py\", line 16, in <module> from scrapy.utils.response import get_base_url File \"C:\\Users\\Ravi\\anaconda3\\envs\\scrape\\lib\\site-packages\\scrapy\\utils\\response.py\", line 14, in <module> from twisted.web import http File \"C:\\Users\\Ravi\\anaconda3\\envs\\scrape\\lib\\site-packages\\twisted\\web\\http.py\", line 183, in <module> from twisted.web._http2 import H2Connection File \"C:\\Users\\Ravi\\anaconda3\\envs\\scrape\\lib\\site-packages\\twisted\\web\\_http2.py\", line 27, in <module> import h2.connection File \"C:\\Users\\Ravi\\anaconda3\\envs\\scrape\\lib\\site-packages\\h2\\connection.py\", line 23, in <module> from .events import ( File \"C:\\Users\\Ravi\\anaconda3\\envs\\scrape\\lib\\site-packages\\h2\\events.py\", line 14, in <module> from .settings import ChangedSetting, _setting_code_from_int File \"C:\\Users\\Ravi\\anaconda3\\envs\\scrape\\lib\\site-packages\\h2\\settings.py\", line 25, in <module> class SettingCodes(enum.IntEnum): File \"C:\\Users\\Ravi\\anaconda3\\envs\\scrape\\lib\\site-packages\\h2\\settings.py\", line 60, in SettingCodes ENABLE_CONNECT_PROTOCOL = SettingsFrame.ENABLE_CONNECT_PROTOCOL AttributeError: type object 'SettingsFrame' has no attribute 'ENABLE_CONNECT_PROTOCOL'","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":96,"Q_Id":67129502,"Users Score":0,"Answer":"Fixed:\nThe problem was that Scrapy was either using an older version of h2 or not using one at all. pip install --upgrade h2 fixed it.","Q_Score":0,"Tags":"python,windows,scrapy","A_Id":67133860,"CreationDate":"2021-04-16T17:12:00.000","Title":"Scrapy shell does not open","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"acordign to the documentation for django-XtdComments in order to have my custom comment model instead of XtdComment the setting file should be like this:\nCOMMENTS_APP = \"django_comments_xtd\"\nCOMMENTS_XTD_MODEL = 'commenting.models.BookComment'\nat this poin I have a commenting app and a BookComment model to use for Comment model but setting file gives me Import Error that Module \"commenting.models\" does not define a \"BookComment\" attribute\/class\ncan anyone help me what's wrong with this code?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":29,"Q_Id":67140344,"Users Score":0,"Answer":"The reason I got this error was circular import in models.py\nIt solved by deleting useless imports","Q_Score":0,"Tags":"python,django,importerror,django-settings,django-comments","A_Id":67345937,"CreationDate":"2021-04-17T16:20:00.000","Title":"Import error while customizing django-comments-xtd","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm Working on a small CRM Project, using Django \/ Rest Framework.\nI would like to create sub-users options for example a user can create some sub-accounts for the employes  for example\nI don't know what should I do, or from where to start to make it","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":54,"Q_Id":67142710,"Users Score":1,"Answer":"Yes for that you can create staff_member this field is present in admin","Q_Score":1,"Tags":"python,django","A_Id":67142728,"CreationDate":"2021-04-17T20:34:00.000","Title":"How to allow users to create users using Django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Currently, I have two python bots running on VDS, both of them are using selenium and running headless chrome to get dynamically generated content. While there was only one script, there was no problem, but now, it appears that the two scripts fight for the chrome process (or driver?) and only get it once the other one is done.\nHave to mention, that in both scripts, Webdriver is instantiated and closed within a function, that itself is ran inside a Process of multiprocessing python module.\nRunning in virtual environment didn't do anything, each script has their own file of chrome driver in their respective directories, and by using ps -a I found that there are two different processes of chromedriver running and closing, so I am positive that scripts aren't using the same chrome. \nSometimes, the error says \"session not started\" and sometimes \"window already closed\".\n\nMy question is - how do I properly configure everything, so that the scripts don't interfere with each other?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":47,"Q_Id":67144301,"Users Score":0,"Answer":"For anyone having the same problem - double-triple-quadriple-check that the function, that you're passing in the Process, is the one instantiating Webdriver. I can't believe this problem is fixed just like that.","Q_Score":2,"Tags":"python,selenium,selenium-webdriver,python-multiprocessing,ubuntu-18.04","A_Id":67184590,"CreationDate":"2021-04-18T00:50:00.000","Title":"How to manage several selenium scripts running at once on VDS?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I always use SQL or NoSQL databases in my project and at my job, but now I am asked to use an object-oriented DB. I don't even know for what reason I should do that. Despite this fact, I google for OODBMS in python and can't see any easy way to use this approach. Now I think, that django ORM (and flask sql alchemy) are the simplest way to construct databases.\nSo, I have two questions:\n\nWhat are the main benefits of using OODBMS instead of, e.x., Django ORM?\n\nIs there a simple way to use OODBMS in flask and django?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":169,"Q_Id":67146040,"Users Score":2,"Answer":"For question 1: OODBMS offers many benefits and to mention a few:\n\nIt provides greater consistency between the database and the programming language.\n\nDoesn\u2019t bother you with object\u2013relational impedance mismatch.\n\nIt is a more expressive query language and it supports long\ndurations\/transactions.\n\nIt is also suitable for advanced database applications.\n\n\nFor question 2:  ZODB is easier and simpler to use, Django is mostly good with ORM only.","Q_Score":0,"Tags":"python,django,flask,object-oriented-database","A_Id":67737819,"CreationDate":"2021-04-18T07:14:00.000","Title":"Python flask\/django object-oriented databases usage","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a template where I'm showing with a 'for' my elements, and those elements have a Edit button, so what I want to do, is when the user clicks edit, a pop up appears with the form and the information of that item.\nSo I don't know how to do that:(","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":29,"Q_Id":67154813,"Users Score":0,"Answer":"so if you are using Javascript in your template then you can get the row index of clicked button and then get information from there and bind it to your popup.","Q_Score":1,"Tags":"python,django,popup","A_Id":67154916,"CreationDate":"2021-04-19T01:04:00.000","Title":"How can I pass information from an item to a Modal in django to edit it?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"On the huggingface site documentation, it says 'The output directory where the model predictions and checkpoints will be written'. I don't quite understand what it means. Do I have to create any file for that?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":396,"Q_Id":67157185,"Users Score":1,"Answer":"The trainer of the Huggingface models can save many things. Most importantly:\n\nVocabulary of the tokenizer that is used (as a JSON file)\n\nModel configuration: a JSON file saying how to instantiate the model object, i.e., architecture and hyperparameters\n\nModel checkpoints: trainable parameters of the model saved during training\n\nFurther it can save the values of metrics used during training and the state of the training (so the training can be restored from the same place)\n\n\nAll these are stored in files in the output_dir directory. You do not have to create the directory in advance, but the path to the directory at least should exist.","Q_Score":1,"Tags":"python,bert-language-model,huggingface-transformers,ray-tune","A_Id":67158033,"CreationDate":"2021-04-19T06:49:00.000","Title":"What does 'output_dir' mean in transformers.TrainingArguments?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm trying out Flask Framework and I created a free account on PythonAnywhere.com, I've been trying to connect my WinCSP to my domain and it keeps giving me a timeout error. If anybody has an idea on how to fix this, it would help me out a lot.","AnswerCount":1,"Available Count":1,"Score":0.3799489623,"is_accepted":false,"ViewCount":58,"Q_Id":67163205,"Users Score":2,"Answer":"Free accounts do not get SSH access, so you will not be able to connect WinSCP to a free account.","Q_Score":0,"Tags":"flask,python-3.8","A_Id":67176422,"CreationDate":"2021-04-19T13:43:00.000","Title":"Trying to connect my WinCSP to my host server and it gives me a timeout error","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Is there a way to add a comment to an order's timeline via the REST API ?\nIf so, what's the scope access ? And how to do this.\nThanks","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":683,"Q_Id":67186251,"Users Score":2,"Answer":"You cannot add a comment to the timeline. You can see your App's interactions with an order on the timeline, exposed by Shopify, but you cannot inject stuff yourself. If you want to decorate an order with comments, you would add your comment to the order notes. That works fine, but as you can tell, it is not timestamped by Shopify, so it lacks an \"official\" standing... nonetheless. Just use Notes.","Q_Score":1,"Tags":"python,rest,shopify,shopify-api","A_Id":67187016,"CreationDate":"2021-04-20T20:56:00.000","Title":"Add comment to an order's timeline in Shopify","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to deploy a realtime image recognition system in python flask api then call it in a winform desktop application, what's the best way to send the video feed throug a json format.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":213,"Q_Id":67187776,"Users Score":0,"Answer":"You can send via base64 format inside json. But best way is designing flask api to expect multipart form data.Even json data + multipart is possible.","Q_Score":0,"Tags":"python,c#,flask-restful","A_Id":67189280,"CreationDate":"2021-04-21T00:14:00.000","Title":"Upload camera video feed to flask rest api","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am learning algorithms in Python right now. Are there websites where I can learn these algorithms \"in the browser\" with byte-size lessons, like Codecademy and Freecodecamp have, free or paid?","AnswerCount":2,"Available Count":2,"Score":1.2,"is_accepted":true,"ViewCount":54,"Q_Id":67191775,"Users Score":1,"Answer":"Try looking at codility.com. a great site for learning algorithms in python","Q_Score":0,"Tags":"python,resources","A_Id":67191948,"CreationDate":"2021-04-21T08:11:00.000","Title":"Are there websites where I can learn Python algorithms \"in the browser\"","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am learning algorithms in Python right now. Are there websites where I can learn these algorithms \"in the browser\" with byte-size lessons, like Codecademy and Freecodecamp have, free or paid?","AnswerCount":2,"Available Count":2,"Score":0.0996679946,"is_accepted":false,"ViewCount":54,"Q_Id":67191775,"Users Score":1,"Answer":"so I really liked hackerrank.com for learning algorithms. It has a special section for that and even more.\nif you have 10\u20ac\/10$ left, there are courses on Udemy on sale sometime, maybe you can find one for algorithms too","Q_Score":0,"Tags":"python,resources","A_Id":67191856,"CreationDate":"2021-04-21T08:11:00.000","Title":"Are there websites where I can learn Python algorithms \"in the browser\"","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I had a short question related to deploying a plotly Dash app via uwsgi. The app is intended to be used by many concurrent users, and we were wondering whether the current approach is suitable for many concurrent users, mainly as we're using States and a dcc.Store() component. I was unaware that using State-parameters could potentially lead to issues for many concurrent users, so any additional insight would be appreciated! If necessary, I can provide a minimal working Dash example as well.\n\nWe designed a multi-page app via Tabs, where the user gives Inputs in three tabs. The output is subsequently displayed in a fourth tab, triggered by a callback.\nThe app callback is triggered via a button (n-clicks), with many of the input parameters of the user being called via States.\nStorage type was defined as follows: dcc.Store(id='session', storage_type='session')\nAll fields have the following persistence settings: persistence=True, persistence_type = 'memory'\n\nThe app itself works already for individual use, so the uwsgi and Apache server are configured correctly as the program works. The main concern at the moment is the concurrent users, and whether the input saved in States influence each other.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":838,"Q_Id":67196888,"Users Score":1,"Answer":"From the info given it seems that you are storing all state on the clientside, and the server thus stays stateless as intended in Dash. Hence I would not expect that you run into any issues with concurrent users.","Q_Score":1,"Tags":"python-3.x,deployment,plotly-dash","A_Id":67202817,"CreationDate":"2021-04-21T13:27:00.000","Title":"Deploying a Dash app for many concurrent users - dcc.Store() & States","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"The site i'am scraping shows an exception every almost 20 minutes 'the session is expired because of inactivity '\nIs there a way to fix that ?","AnswerCount":2,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":66,"Q_Id":67209576,"Users Score":0,"Answer":"The simplest solution is to click on some element on the page or perform some action with Actions class, like hovering over some sensitive element or even refresh the page.","Q_Score":0,"Tags":"python,selenium,webdriver","A_Id":67210531,"CreationDate":"2021-04-22T08:30:00.000","Title":"How to periodically relogin with selenium Python?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to send an XML message from my existing Python application to the existing SonicMQ JMS ESB broker deployed in our organization.\nI cannot seem to find any Python library to send JMS messages to SonicMQ. The only one I could find is Spring-Python, which seems to implement only the connection to WebSphereMQ.\nIs there any Python library to send JMS messages to SonicMQ?","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":118,"Q_Id":67213784,"Users Score":1,"Answer":"Talking about Python and JMS is a bit of a red herring. JMS is a Java API standard into various messaging products. It's not a messaging product itself.\nThe way I'd think of this is...\n\nIs there a Python interface to the specific SonicMQ product. I have no background w\/ SonicMQ but a quick google search mainly brings up your question so my bet is no.\nIs use of Jython an option, using its capability of calling Java APIs? If so, I'd expect Jython could talk to any JMS implementation using that. So yes you should be able to use JMS API to use SonicMQ just like a Java app.","Q_Score":0,"Tags":"python,jms,sonicmq","A_Id":67324114,"CreationDate":"2021-04-22T12:59:00.000","Title":"Can I send JMS messages from Python to SonicMQ?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am currently trying to develop a tool to use Google Search Console API in order to get some data from my website.\nMy main goal is to get the 'Links Report' such as Top linking domains & Top linked pages in an automated way.\nI don't know if this is available via Google API. I have found nothing till now.\nIs this even possible to get such list via the Google Search Console API?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":155,"Q_Id":67250516,"Users Score":0,"Answer":"I'm doing the same thing, hoping someone will answer that question","Q_Score":1,"Tags":"python-3.x,google-api,google-api-client,google-api-python-client,google-search-console","A_Id":67280565,"CreationDate":"2021-04-25T06:44:00.000","Title":"How to to get links report with Google Search Console API?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm running a jupyter notebook remotely on a server by\n\nconnecting to the server: ssh server:address\ninitialize the jypter notebook ipython notebook --no-browser --port=7000\nusing another terminal window, stabilish remove connection to the notebook ssh -N -f -L localhost:6001:localhost:7000 server:address \nfinally I access it throw localhost:6001 in my browser.\n\nThe thing is: I'd like to keep the notebook running when I turn my computer off. Any ideas on how can I do it?","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":200,"Q_Id":67253338,"Users Score":0,"Answer":"You could create a crontab on your remote server with your command ipython notebook --no-browser --port=7000 to manage the execution of Jupiter notebook, that could be the way go.","Q_Score":1,"Tags":"python,ssh,jupyter-notebook,remote-access","A_Id":67253456,"CreationDate":"2021-04-25T12:20:00.000","Title":"Jupyter Notebook remote browser without disconnecting","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I have a .db file from sqLite3.I want to use it in django project. With inspectdb, I created model from this db file. But I want to get data from this .db file. Is that possible ? And how can I retrieve data from db file ? Thanks.\nInspectdb only create model.py ,not retrieve data.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":79,"Q_Id":67258335,"Users Score":0,"Answer":"create the Django project.\nMake migrations with similar schema\nreplace the new DB file with this one.","Q_Score":2,"Tags":"python,python-3.x,django-models,django-rest-framework","A_Id":67258531,"CreationDate":"2021-04-25T21:13:00.000","Title":"How to use .db file in django for getting data?","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to link JENKINS and tortoise SVN but I am unable to. I have tried the below methods:\n\nCreate batch file for an SVN checkout - Works fine\nCall the same batch file from Jenkins as a Batch command step in Jenkins - Does not work\nTried writing a python script and tried a subprocess.call() with svn checkout - Does not work.\n\nI get the below error when I try with Jenkins -\nsvn: E170013: Unable to connect to a repository at URL\nsvn: E215004: No more credentials or we tried too many times\nAuthentication failed.","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":254,"Q_Id":67273897,"Users Score":1,"Answer":"Finally was able to solve it. Clear the cache present for SVN credentials and use the --username --password for the SVN command.","Q_Score":0,"Tags":"python,jenkins,svn,tortoisesvn","A_Id":67360384,"CreationDate":"2021-04-26T21:13:00.000","Title":"JENKINS Tortoise SVN link - Unable to connect to repository","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I accidentally, deleted table of a model in db.sqlite. How can I recreate it?\nWhen I run command 'python manage.py makemigrations' it works but when I run'python manage.py migrate' it says 'No migrations to apply'","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":163,"Q_Id":67282506,"Users Score":0,"Answer":"Delete migration files and re-run python manage.py makemigrations","Q_Score":1,"Tags":"python,python-3.x,django,django-models,django-migrations","A_Id":67282651,"CreationDate":"2021-04-27T11:50:00.000","Title":"I accidentally, deleted table of a model in db.sqlite (manually). How can I recreate it?","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am working on a Django project and have implemented login and  logout functionalities. The project is a job portal. When I login as a recruiter, previously I was able to open another tab in my browser and use the django admin panel. Now, whenever I do that, it says that I am logged in as my recruiter email address and I have to log in using another account. Now, when I log in using my admin credentials, simultaneously, I am being logged in on my website using my admin credentials which I have never registered on the site. Why am i getting this???\nThank you for your reply guys. This has impeded my work progress since hours","AnswerCount":2,"Available Count":2,"Score":1.2,"is_accepted":true,"ViewCount":45,"Q_Id":67284091,"Users Score":1,"Answer":"Yes its because django stores the login details in browser cookie ... so you have to use incognito  for using admin n other accounts","Q_Score":0,"Tags":"python,django,django-models,django-views,django-templates","A_Id":67284378,"CreationDate":"2021-04-27T13:33:00.000","Title":"Django login problem which is being linked with the admin side","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am working on a Django project and have implemented login and  logout functionalities. The project is a job portal. When I login as a recruiter, previously I was able to open another tab in my browser and use the django admin panel. Now, whenever I do that, it says that I am logged in as my recruiter email address and I have to log in using another account. Now, when I log in using my admin credentials, simultaneously, I am being logged in on my website using my admin credentials which I have never registered on the site. Why am i getting this???\nThank you for your reply guys. This has impeded my work progress since hours","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":45,"Q_Id":67284091,"Users Score":0,"Answer":"You are not able to access the administrative page with your recruiting user as he must not have the flag is_staff = True, try add this flag to recruiting user and access the admin page of django.\nDjango does not allow the same user to be logged in to multiple accounts with the same browser window, so to access multiple accounts at the same time use anonymous tabs or other instances","Q_Score":0,"Tags":"python,django,django-models,django-views,django-templates","A_Id":67284924,"CreationDate":"2021-04-27T13:33:00.000","Title":"Django login problem which is being linked with the admin side","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"recently i was asked for a R&D process which was about researching about how the jupyter notebook runs and what things runs behind the scenes and i achieved to find some solutions but the major thing in this process was the running of python code in browser that had no request and responses to any endpoint or url and it compiles the python code internally in browser\nthe question is how the python code executes in browser\nthanks","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":62,"Q_Id":67295664,"Users Score":1,"Answer":"Your question is not clear. However, taking \"the question is how the python code executes in browser\" as the question.\nRun a terminal and issue 'top'. This will show you all the running processes. Now, whilst watching 'top', run a program in Jupyter. You will see, that 'Python3.6' or similar running as a process so long as your program is running.\nHence, the answer is, that the Jupyter page in the Browser calls Python to run the program with the output redirected to the browser panel.\nYou can do this on a Mac or on Linux, on a PC, almost certainly, there is a similar utility to 'top'. I just do not know in the case of a PC what that utility is called. Possibly, 'Task Viewer' would be OK.","Q_Score":0,"Tags":"javascript,python,reactjs,jupyter-notebook,kernel","A_Id":67296572,"CreationDate":"2021-04-28T07:26:00.000","Title":"how does the jupyter notebook runs the python in browser the process runs behind the scenes?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"Let's say i need to have the javascript in a seperate file, then how can i add a {{variable}} for example in the javascript file without having to use a <script> tag in the HTML?\nIs that even possible with jinja?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":404,"Q_Id":67301684,"Users Score":0,"Answer":"You are not limited to generating HTML files with Jinja. You can generate a JS file that uses a {{ variable }}.","Q_Score":0,"Tags":"javascript,python,flask,jinja2","A_Id":67301778,"CreationDate":"2021-04-28T13:57:00.000","Title":"How to use jinja tags inside Javascript file?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"We are running an API server where users submit jobs for calculation, which take between 1 second and 1 hour. They then make requests to check the status and get their results, which could be (much) later, or even never.\nCurrently jobs are added to a pub\/sub queue, and processed by various worker processes. These workers then send pub\/sub messages back to a listener, which stores the status\/results in a postgres database.\nI am looking into using Celery to simplify things and allow for easier scaling.\nSubmitting jobs and getting results isn't a problem in Celery, using celery_app.send_task. However, I am not sure how to best ensure the results are stored when, particularly for long-running or possibly abandoned jobs.\nSome solutions I considered include:\n\nGive all workers access to the database and let them handle updates. The main limitation to this seems to be the db connection pool limit, as worker processes can scale to 50 replicas in some cases.\n\nListen to celery events in a separate pod, and write changes based on this to the jobs db. Only 1 connection needed, but as far as I understand, this would miss out on events while this pod is redeploying.\n\nOnly check job results when the user asks for them. It seems this could lead to lost results when the user takes too long, or slowly clog the results cache.\n\nAs in (3), but periodically check on all jobs not marked completed in the db. A tad complicated, but doable?\n\n\nIs there a standard pattern for this, or am I trying to do something unusual with Celery? Any advice on how to tackle this is appreciated.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":121,"Q_Id":67303047,"Users Score":2,"Answer":"In the past I solved similar problem by modifying tasks to not only return result of the computation, but also store it into a cache server (Redis) right before it returns. I had a task that periodically (every 5min) collects these results and writes data (in bulk, so quite effective) to a relational database. It was quite effective until we started filling the cache with hundreds of thousands of results, so we implemented a tiny service that does this instead of task that runs periodically.","Q_Score":1,"Tags":"python,celery","A_Id":67314568,"CreationDate":"2021-04-28T15:18:00.000","Title":"Persisting all job results in a separate db in Celery","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I have a Django server running in an elastic beanstalk environment. I would like to have it render HTML templates pulled from a separate AWS S3 Bucket.\nI am using the Django-storages library, which lets me use static and media files from the bucket, but I can't figure out how to get it to render templates.\nThe reasoning for doing it like this is that once my site is running, I would like to be able to add these HTML templates without having to redeploy the entire site.\nThank you","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":250,"Q_Id":67305256,"Users Score":0,"Answer":"To my best knowledge, Django-storages is responsible for managing static assets and media files, it doesn't mount the S3 bucket to the file system, what you might be looking for is something like S3Fuse which will mount the bucket on the File System, which will allow you to update the template and have them sync. This might not be the best solution because even if you got the sync to work, Django might not pick those changes and serve the templates from memory.\nI believe what you're looking for is a Continuous Delivery pipeline, that way you won't be worried about hosting.\nGood Question though.","Q_Score":0,"Tags":"django,amazon-web-services,amazon-s3,amazon-elastic-beanstalk,python-django-storages","A_Id":67306154,"CreationDate":"2021-04-28T17:38:00.000","Title":"DJango use templates from seperrate AWS S3 Bucket","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am developing a virtual stock market application on django and came upon the following problem. In any stock market application, there is an option of limit buy, stop loss and target sell. This essentially means to buy a share if it ever touches a price which is lower than the current price, to sell a share if it touches a very low price and to sell a share if it touches a high price respectively. For this, the server needs to constantly monitor the live data coming in from the API of a particular stock and perform the action if it happens. However, during this time no one may be making any requests on the site so how do I get django to monitor the prices of the stocks every 5 seconds or so to check if the order needs to be executed or not?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":84,"Q_Id":67330016,"Users Score":0,"Answer":"The common approaches here would be to create a Django management command that performs the checks, you can then use a cronjob on your server to schedule this every minute.\nAlternatively, you can use an asynchronous worker, which can also be used to schedule repetitive tasks frequently. The most commonly used solution is Celery but it does have a bit of a learning curve (which tends to manifest itself in reliability) that some other solutions such as Dramatiq seem to be trying to improve upon. Celery is probably the easiest to find instructional information for though.","Q_Score":0,"Tags":"javascript,python,django","A_Id":67330636,"CreationDate":"2021-04-30T07:37:00.000","Title":"Is there a way to run django constantly on the server to update a database based on live data","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Observing KeyError:'CaseFoldUTF8' while loading the model when loading the model that I had fine-tuned using pre trained BERT from tf-hub","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":1489,"Q_Id":67333235,"Users Score":9,"Answer":"I got the same error. Adding import tensorflow_text at the top worked for me.","Q_Score":4,"Tags":"python-3.x,tensorflow2.0","A_Id":67691003,"CreationDate":"2021-04-30T11:38:00.000","Title":"How to fix the following error when trying to load a model \"KeyError: 'CaseFoldUTF8' while loading the model\"","Data Science and Machine Learning":1,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I was reading about the Django UserPassesTestMixinmixin, and I came across the term CBV Mixin. What is this, and how is it useful? Is a CBV Mixin a general type of mixins, and are there CBV mixins in any other framework apart from Django?","AnswerCount":3,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":190,"Q_Id":67337324,"Users Score":0,"Answer":"CBV is just a shortcut from Class-based views, which is a generic term for any view in Django that is defined as a class in your code, especially one inheriting from django.views.View.\nSo the CBV Mixin is just any mixin that can be used in a Class-based view.","Q_Score":2,"Tags":"python,django,mixins","A_Id":67337582,"CreationDate":"2021-04-30T16:25:00.000","Title":"What is a CBV mixin in Django?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a React Native app where I want to send an image to my Flask backend to do some image processing (annotations) then return this new image back to React Native to display it.\nI spent a whole day trying to figure this out but was unsuccessful. Does anyone have any ideas on how to achieve this?\nI plan on using Firebase's storage system to store these images so I wouldn't mind using that either if that makes things easier.\nWhat I've tried so far is sending the image uri to Flask and read the image file and was able to do the image processing however I couldn't figure out how to send the new image back to React Native...","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":287,"Q_Id":67343272,"Users Score":0,"Answer":"How are you sending the image to Flask right now?\nTypically you could implement an async function on RN that awaits a response.\nIn plain English:\nA function that uploads an image to the back end and awaits for the image to be processed.\nExpects in return a URL of the image on the back-end (or Firestore).","Q_Score":0,"Tags":"python,firebase,react-native,flask,api-design","A_Id":67344272,"CreationDate":"2021-05-01T05:52:00.000","Title":"How to send image between React Native and Flask?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am creating a website using Django on the stock market. I am fetching the live stock market data from an API. I want to update the live price of a stock every 5 seconds (which is given by the API). How can I do this without refreshing the page? I found that Ajax is very helpful for this but I am not being able to implement this properly. Thus, can someone please give an example of the code which is required in the Html page to update the values using Ajax. I was thinking of using a separate URL that could send the data in a JSON format. Please help me out if possible.","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":460,"Q_Id":67344452,"Users Score":0,"Answer":"For this purpose you better use django channels\nYou will need to use asynchronous django views and I think this is the most accurate way to do your job","Q_Score":0,"Tags":"javascript,python,jquery,django,ajax","A_Id":67345895,"CreationDate":"2021-05-01T08:52:00.000","Title":"How to automatically update a page without refreshing in django?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have started a private project with Django and Channels to build a web-based UI to control the music player daemon (mpd) on raspberry pi. I know that there are other projects like Volumio or moode audio etc. out of the box that is doing the same, but my intension is to learn something new!\nUp to now I have managed to setup a nginx server on the pi that communicates with my devices like mobile phone or pc. In the background nginx communicates with an uWSGI server for http requests to Django and a daphne server as asgi for ws connection to Django Channels. As well there is a redis server installed as backend because the Channels Layer needs this. So, on client request a simple html page as UI is served and a websocket connection is established so far.\nIn parallel I have a separate script as a mpd handler which is wrapped in a while loop to keep it alive, and which does all the stuff with mpd using the python module python-mpd2.\nThe mpd handler shall get its commands via websocket from the clients\/consumers like play, stop etc. and reacts on that. At the same time, it shall send the timeline of the song when a song is playing, let\u2019s say every one second as well via websocket.  I could manage to send frequently data to all connected clients\/consumers with async_to_sync(channel_layer.group_send) from outside but I couldn\u2019t find a solution how to pass data\/commands coming from the clients via websocket to my separate running mpd handler script.\nI read in the docs for Django Channels that it is not recommended to use while loops in the consumers because this will block all the communication \u2013 that\u2019s right I have tried this already. Then I tried to receive messages with the command async_to_sync(channel_layer.receive)('channel_name') in the mpd handler with a direct connection to a consumer. But this command blocks my mpd handler because it works async although I use async_to_sync.\nSo, my question:\nIs it possible to pass messages to outside of Django Channels to other scripts with channel own methods? Do you have any suggestion how to solve this maybe with other methods or workarounds? I am looking for a reliable solution.\nI gave thoughts to that issue and have some ideas, but I don\u2019t know if this will lead to any solution:\n\nPolling:\nThe clients send frequently messages and requests via websocket to control the mpd and update the UI. In this case no handler would be needed. (I don\u2019t know if this method will generate to much traffic on the websocket and makes it slow. As well, the connection to mpd has to be established frequently and closed again. Don\u2019t know if this works robust.)\nDatabase:\nGenerate a database where consumers and the mpd handler have access to. The consumers write the incoming messages in a database and the mpd handler reads them out and does the job. (Here I don\u2019t know if there will be problems when the consumers and mpd handler try to access the db at the same time.)\nUsing Queues with multiprocessing module:\nConsumers passes the messages via a queue to the mpd handler. (Don\u2019t know if this is possible.)\nCatching up the messages in redis:\nMpd handler listens frequently on redis to catch up the messages. I read that when the Layers are used in common way the groups and channel names are listed on redis only. Messages are passed via redis when the consumers are started as workers. (That would mean that all my consumers must start as background worker, but how?)\n\nI hope you may have a solution to my question. You may realise from my ideas and the question marks involved to solve this problem that I am not an IT expert. As I wrote at the beginning, I have another engineering background and a newbie in this but very interested to learn something new! So please be patient with me when I don\u2019t understand everything immediately.\nI hope to read your answers soon and thank you in advance.\nBest regards.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":373,"Q_Id":67347331,"Users Score":0,"Answer":"Whilst nobody gave an answer to my question, I tried a little bit out some possible options.\nI changed the binding of mpd from fix IP to a socket connection and created a mpd_Handler class with some functions\/methods like connect to mpd, disconnect, play, pause etc.\nThis class is imported in Django consumers.py and views.py. Whenever a web client connects to Django or has a new command (like play, skip etc.), the mpd_Handler will perform the command and respond the actual state of mpd like current song metadata.\nA second mpd handler which is running outside of Django as a separate script monitors frequently the mpd state to detect any changes. In case of a change at mpd (e.g., the song of web radio stream has changed or the duration time of the song) this handler informs all clients that are connected to Django consumer group with the command async_to_sync(channel_layer.group_send) so that the clients can update their UI.\nAt the moment it works, and I hope this is a good solution and helps others who have the same problem. Other suggestions are still welcome!\nBest regards.","Q_Score":1,"Tags":"python,django,websocket,redis,django-channels","A_Id":68302357,"CreationDate":"2021-05-01T14:27:00.000","Title":"Django Channels: How to pass incoming messages to external script which is running outside of django?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I have a project in which the backend is written in FastAPI and the frontend uses React. My goal here is to add a component that will monitor some of the pc\/server's performances in real time. Right now the project is still under development in local environment so basically I'll need to fetch the CPU\/GPU usage and RAM (derived from my PC) from Python and then send them to my React app. My question here is, what is the cheapest way to accomplish this? Is setting an API and fetching a GET request every ten seconds a good approach or there're some better ones?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":293,"Q_Id":67348632,"Users Score":1,"Answer":"Explanation & Tips:\nI know EXACTLY what you're describing. I also made a mobile app using Flutter and Python. I have been trying to get multiple servers to host the API instead of one server. I personally think Node.Js is worth checking out since it allows clustering which is extremely powerful. If you want to stick with python, the best way to get memory usage in python is using psutil like this: memory = psutil.virtual_memory().percent, but for the CPU usage you would have to do some sort of caching or multi threading because you cannot get the CPU usage without a delay cpu = psutil.cpu_percent(interval=1). If you want your API to be fast then the periodic approach is bad, it will slow down your server, also if you do anything wrong on the client side, you could end up DDOSing your API, which is an embarrassing thing that I did when I first published my app. The best approach is to only call the API when it is needed, and for example, flutter has cached widgets which was very useful, because I would have to fetch that piece of data only once every few hours.\nKey Points:\n-Only call the API when it is crucial to do so.\n-Python cannot get the CPU usage in real-time.\n-Node performed better than my Flask API (not FastAPI).\n-Use client-side caching if possible.","Q_Score":0,"Tags":"python,reactjs,algorithm,fastapi","A_Id":67445140,"CreationDate":"2021-05-01T16:45:00.000","Title":"Proper way to show server's RAM, CPU and GPU usage on react app","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am developing my final degree project and I am facing some problems with Python, Flask, socketIO and background threads.\nMy solution takes some files as input, process them, makes some calculations, and generates an image and a CSV file. Those files are then uploaded to some storage service. I want to make the processing of the files on a background thread and notify my clients (web, Android, and iOS) using websockets. Right now, I am using flask-socketIO with eventlet as the async_mode of my socket. When a client uploads the files, the process is started in a background thread (using socketio.start_background_task) but that heavy process (takes about 30 minutes to end) seems to take control of the main thread, as a result when I try to make an HTTP request to the server, the response is loading infinitely.\nI would like to know if there is a way to make this work using eventlet or maybe using another different approach.\nThank you in advance.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":219,"Q_Id":67349819,"Users Score":0,"Answer":"Eventlet uses cooperative multitasking, which means that you cannot have a task using the CPU for long periods of time, as this prevents other tasks from running.\nIn general it is a bad idea to include CPU heavy tasks in an eventlet process, so one possible solution would be to offload the CPU heavy work to an external process, maybe through Celery or RQ. Another option that sometimes works (but not always) is to add calls to socketio.sleep(0) inside your CPU heavy task as frequently as possible. The sleep call interrupts the function for a moment and allows other functions waiting for the CPU to run.","Q_Score":1,"Tags":"python,flask,socket.io,flask-socketio,eventlet","A_Id":67400105,"CreationDate":"2021-05-01T18:49:00.000","Title":"Having trouble with flask-SocketIO and eventlet","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am creating a website and I was designing it without a repository set up originally. Now, I have it in a git repo and suddenly, when I try to refresh the page (with dev tools open and cache disabled) my CSS and HTML changes have no affect. I have to stop the server, close the webpage, then re-run the server and open it again to see changes. Anyone experienced this? Not sure what gives.","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":71,"Q_Id":67352477,"Users Score":1,"Answer":"I'll answer this myself. Classic correlation does not equal causation. The reason that this was not working was because I had set my debug to False in settings.py when I added it to git repo (because I was deploying it). Once I set it to true it updates every time now.","Q_Score":2,"Tags":"python,django,git,pycharm","A_Id":67352735,"CreationDate":"2021-05-02T02:28:00.000","Title":"Pycharm Django CSS not updating after adding git repo","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"So, here is the problem I ran into, I am trying to build a very small-scale MVP app that I will be releasing soon. I have been able to figure out everything from deploying the flask application with Dokku (I'll upgrade to something better later) and have been able to get most things working on the app including S3 uploading, stripe integration, etc. Here is the one thing I am stuck on, how do I generate SSL certs on the fly for customers and then link everything back to the Python app? Here are my thoughts:\nI can use a simple script and connect to the Letsencrypt API to generate and request certs once domains are pointed to my server(s). The problem I am running into is that once the domain is pointed, how do I know? Dokku doesn't connect all incoming requests to my container and therefore Flask wouldn't be able to detect it unless I manually connect it with the dokku domains:add command?\nIs there a better way to go about this? I know of SSL for SaaS by Cloudflare but it seems to only be for their Enterprise customers and I need a robust solution like this that I don't mind building out but just need a few pointers (unless there is already a solution that is out there for free - no need to reinvent the wheel, eh?). Another thing, in the future I do plan to have my database running separately and load balancers pointing to multiple different instances of my app (won't be a major issue as the DB is still central, but just worried about the IP portion of it). To recap though:\nClient Domain (example.io) -> dns1.example.com -> Lets Encrypt SSL Cert -> Dokku Container -> My App\nPlease let me know if I need to re-explain anything, thank you!","AnswerCount":2,"Available Count":1,"Score":-0.0996679946,"is_accepted":false,"ViewCount":271,"Q_Id":67352618,"Users Score":-1,"Answer":"Your solutions is a wildcard certificate, or use app prefixing.\nSo I'm not sure why you need a cert per customer, but let's say you are going to do\ncustomer1.myapp.com -> routes to customer1 backend. For whatever reason.\nLet's Encrypt lets you register *.myapp.com and therefore you can use subdomains for each customer.\nThe alternative is a customer prefix.\nSay your app URL looks like www.myapp.com\/api\/v1\/somecomand\nyou could use www.myapp.com\/api\/v1\/customerID\/somecommand and then allow your load balancer to route based on the prefix and use a rewrite rule to remove the customerID back to the original URL.\nThis is more complicated, and it is load balancer dependent but so is the first solution.\nAll this being said, both solutions would most likely require a separate instance of your application per customer, which is a heavy solution, but fine if that's what you want and are using lightweight containers or deploying multiple instances per server.\nAnyway, a lot more information would be needed to give a solid solution.","Q_Score":5,"Tags":"python,nginx,ssl,flask,lets-encrypt","A_Id":67421642,"CreationDate":"2021-05-02T03:01:00.000","Title":"Generating SSL Certs for Customer Domains and integrating with Python Flask","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I'm getting this error: AttributeError: module 'trio.lowlevel' has no attribute 'FdStream'. FdStream isn't in the trio code on git nor in my installation. Is there an alternative to this, or is there a different version I did't find?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":74,"Q_Id":67371643,"Users Score":1,"Answer":"That attribute is only available on non-Windows platforms. If your friend made the function compatible with only Linux\/macos, you will need to run the function on a Posix platform as well.","Q_Score":0,"Tags":"python,python-trio","A_Id":67371790,"CreationDate":"2021-05-03T15:30:00.000","Title":"I got a trio input function from a friend and it's trying to use trio.lowleve.FdStream, however I can't find it","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am new to Ursina engine . I want to animate a button entity from one place to another using the animate_z method, but am unable to do so. Any suggestions?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":82,"Q_Id":67380915,"Users Score":0,"Answer":"Use animate_position(). animate_z will only change the depth, so you won't see the effect unless you have thing behind or in front, or if it's 3d.","Q_Score":0,"Tags":"python-3.x,animation","A_Id":67385360,"CreationDate":"2021-05-04T08:03:00.000","Title":"How can I animate a Button entity from one place to another in ursina engine?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I\u2019ve deployed my first application today utilizing plotly Dash and I\u2019m using Dash Auth as my authentication to login to the application.\nHowever, the way our system works, it\u2019s dependent on a \u2018health check\u2019 which requires a given URL from the dash app to return a 200 status code to ensure the site is running well.\nFrom my understanding, the Dash Auth throws a 401 error first to display the login page, then returns either 200 or 403 based on the input.\nThis initial 401 then crashes our system because it\u2019s expecting a 200 for the health check.\nMy question is, what link can I supply our system so that I get a 200 status code returned instead of the 401 while still using Dash Auth? The base path, like url.com\/ seems to throw the 401 still. Thank you!","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":137,"Q_Id":67390972,"Users Score":1,"Answer":"You need to create a login page which can send 200 response.\nor else simple solution is to add 401 as a required success code in EC2 Target Groups as 401 means unauthorized error.\nProcess:\nEC2 -> Load balancing -> Target groups -> select target group -> health checks -> set Success Codes as 401.","Q_Score":0,"Tags":"python,plotly-dash,http-status-code-401,plotly-python","A_Id":70595319,"CreationDate":"2021-05-04T19:26:00.000","Title":"Plotly 'Dash Auth' Login Throws 401 Error. How to get 200?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to implement in django template just like this\nfor i in range(0,10):\n     for j in range(0,10):\n       if(i.index == j.index):\n          print(j)","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":52,"Q_Id":67396294,"Users Score":0,"Answer":"I have fixed my problem using this .Thanks.\n{% if forloop.counter == forloop.parentloop.counter %}","Q_Score":0,"Tags":"python-3.x,nested-for-loop","A_Id":67411467,"CreationDate":"2021-05-05T06:42:00.000","Title":"How to compare two for loop index number in Django template?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a Flask App with Python 3.9 (I used different versions of Python same problem) my iis server Version is 10.\nIn my App I have 4 different post routes. 3 of them work like a charm. When I call the fourth one which is almost the same like the other 3, I get a 500 error and I have no idea why. When I start the Flask server without iis, every post route work. I did every tutorial here or on different websites but my problem is still there.\nDoes anybody know this problem or have a solution why one of the methods won't work?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":224,"Q_Id":67396398,"Users Score":0,"Answer":"This is an output of my log file:\n2021-05-06 09:43:27.854195: wfastcgi.py will restart when files in C:\\masterarbeit\\flask\\ are changed: .((.py)|(.config))$\n2021-05-06 09:43:27.869792: wfastcgi.py 3.0.0 initialized\n2021-05-06 09:43:28.479183: wfastcgi.py exiting because upload\\Teacup.py has changed, matching .((.py)|(.config))$\n2021-05-06 09:43:28.510435: Running on_exit tasks\nThe error come when i call an ajax script. this script works when i start the flask server without iis. The ajax script calls a python method which returns a json string.\nThe other ajax scripts which are similar work like a charm.\nUPDATE: when i change the json return e.g. to a single char instead of the json string, it works.\nThe error come in this line:\nfig = go.Figure()","Q_Score":0,"Tags":"python,flask,iis,wfastcgi","A_Id":67413856,"CreationDate":"2021-05-05T06:52:00.000","Title":"Deploy Python Flask on IIS 10 - post route failure","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"'django-admin' is not recognized as an internal or external command,\noperable program or batch file... So I am getting this error in terminal. I am trying to build an app. First I opened a folder(page) in my computer D drive and then opened Visual Studio Code. From there I opened the folder(page) and from view I opened terminal. Then when I am trying to type django-admin myproject page. it is showing this error.","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":1231,"Q_Id":67397726,"Users Score":0,"Answer":"If you're using a virtual environment, do you have it activated?\n\nIs you you python scripts folder in PATH?\nOn windows: Search for 'Edit the system environment variables'.\nClick on 'Environment Variables...'\nIn System Variables look for row with variable name Path. Click on it and then Edit.\nYou'll see a number of directories. Do you see one ending with something like ..\\Python\\Python39\\Scripts?\nIf you have that folder open it and make sure you have django-admin.exe inside.","Q_Score":0,"Tags":"python,django,virtualenv,django-commands","A_Id":67398083,"CreationDate":"2021-05-05T08:29:00.000","Title":"Visual Studio Code 'django-admin' command not recognized","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"'django-admin' is not recognized as an internal or external command,\noperable program or batch file... So I am getting this error in terminal. I am trying to build an app. First I opened a folder(page) in my computer D drive and then opened Visual Studio Code. From there I opened the folder(page) and from view I opened terminal. Then when I am trying to type django-admin myproject page. it is showing this error.","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":1231,"Q_Id":67397726,"Users Score":0,"Answer":"As you are using conda environment, use conda activate to activate the environment, and then you can use the Django module.\nThis error is occurring due to the missing Django module.","Q_Score":0,"Tags":"python,django,virtualenv,django-commands","A_Id":67398328,"CreationDate":"2021-05-05T08:29:00.000","Title":"Visual Studio Code 'django-admin' command not recognized","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am new to couch DB and cloudant. A django application is converting a pdf into image using a celery task and storing both in couch DB. But the local cloudant cache is not updating, since couch DB updation is causing by the celery task. When checking the local cache,  it's storing a previous doc object with old revision number. Remote couch DB is updating fine and not syncing with local.\nWhy couch updations from celery is not affecting local cache\nIs anything I am doing wrong","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":59,"Q_Id":67407217,"Users Score":0,"Answer":"The local cache is meant to cache content to reduce unnecessary calls to the API.  It doesn't sync with the remote DB.  In this case \"unnecessary\" is defined by you.  If the local cache contains a stale document then you can refresh it by re-fetching the document like my_doc.fetch().  Where my_doc is a reference to your stale cached document.","Q_Score":0,"Tags":"python,django,celery,couchdb,cloudant","A_Id":68653149,"CreationDate":"2021-05-05T18:55:00.000","Title":"Cloudant local cache not syncing with local couch cache. Using python-cloudant","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"My Python\/Django code behaves different in the heroku production code, than on my development machine.\nI would like to debug\/trace it.\nSince it runs on Heroku. AFAIK I can't insert import pydevd_pycharm;  pydevd_pycharm.settrace(... into the code.\nI use PyCharm.\nBut I don't need a fancy GUI. A command-line tool would be fine, too.\nI would be happy if I could see all lines which get executed during a particular http request.\nHow to solve this for production systems?","AnswerCount":2,"Available Count":2,"Score":1.2,"is_accepted":true,"ViewCount":173,"Q_Id":67419129,"Users Score":2,"Answer":"In order to understand the difference between your local development environment and the Heroku production I would first deploy the application on another Heroku Dyno, for example a Free Dyno which you can easily create and manage.\nYou can then integrate the tools you want and add the log statements as needed.\nEven if you are able to debug\/inspect the production runtime it is very important to be able to test on production-like systems to capture problems early and investigate problems without guessing.\nOn the Prod system you have limited options to debug the application:\n\nconsider code changes (i.e. add logging stamements) but as you have pointed out this involves PRs and a new release\ndebugger: connect your favourite debugger (i.e. PyCharm) to the remote application. This is something that (almost) no one does (given the security aspects and the likely impact on the application performance) and I doubt your system admins\/DevOps would agree","Q_Score":0,"Tags":"python,django,heroku,pycharm,trace","A_Id":67501143,"CreationDate":"2021-05-06T13:26:00.000","Title":"How to trace code in a Heroku production system","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"My Python\/Django code behaves different in the heroku production code, than on my development machine.\nI would like to debug\/trace it.\nSince it runs on Heroku. AFAIK I can't insert import pydevd_pycharm;  pydevd_pycharm.settrace(... into the code.\nI use PyCharm.\nBut I don't need a fancy GUI. A command-line tool would be fine, too.\nI would be happy if I could see all lines which get executed during a particular http request.\nHow to solve this for production systems?","AnswerCount":2,"Available Count":2,"Score":0.0996679946,"is_accepted":false,"ViewCount":173,"Q_Id":67419129,"Users Score":1,"Answer":"I don't know of any tool which can do that, but you shouldn't run into this problem very often. So I wouldn't bother trying to solve this generally, but instead just add logging statements where you think they can be handy to debug this one problem.","Q_Score":0,"Tags":"python,django,heroku,pycharm,trace","A_Id":67437242,"CreationDate":"2021-05-06T13:26:00.000","Title":"How to trace code in a Heroku production system","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I use command  py -m django --version in cmd prompt it returns 3.2 as my django version\nbut when i use the same command in vscode it returns 3.1.9. why is that","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":34,"Q_Id":67422338,"Users Score":0,"Answer":"check to see which version is configured in each:\n\ncommand prompt is defined by \"path\" in environmental variables\nVScode is configured using GUI from the bottom left corner of the app where it shows the interpreter being used.","Q_Score":0,"Tags":"python,django,visual-studio-code,cmd","A_Id":67422426,"CreationDate":"2021-05-06T16:30:00.000","Title":"showing different versions of django for same environment in cmd prompt and vscode","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"When I try to click on parts of Nao's body in robot view  the motion widget doesn't show up  instead the 'inspector' box appears . How can I find the motion widget window?\nPlease help me","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":56,"Q_Id":67435471,"Users Score":0,"Answer":"The inspector view replaces the motion widget, and brings the same control of the robot's joints. Note that you can also directly move the joints from the 3D view.","Q_Score":1,"Tags":"python,robot,motion,nao-robot,choregraphe","A_Id":67436182,"CreationDate":"2021-05-07T13:02:00.000","Title":"In Choregraphe in robot view for Nao the motion widget doesn't show up. Instead the 'inspector' box appears. How can I find the motion widget?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I had some problems with liking\n\nCannot detect post media type\n\nI read that I should change one line like_until (span to div) but when I changed that, I got these error:\nTraceback (most recent call last): File \"c:\\Users\\lenovo\\Desktop\\SubDesk\\Click Bloom\\click_bloom_v1.0.0\\main.py\", line 72, in <module> session.like_by_tags(['bitcoin'], amount=11) File \"C:\\Users\\lenovo\\AppData\\Local\\Programs\\Python\\Python39\\lib\\site-packages\\instapy\\instapy.py\", line 1957, in like_by_tags inappropriate, user_name, is_video, reason, scope = check_link( File \"C:\\Users\\lenovo\\AppData\\Local\\Programs\\Python\\Python39\\lib\\site-packages\\instapy\\like_util.py\", line 726, in check_link quash = re.search(dont_likes_regex, image_text, re.IGNORECASE) File \"C:\\Users\\lenovo\\AppData\\Local\\Programs\\Python\\Python39\\lib\\re.py\", line 201, in search return _compile(pattern, flags).search(string) File \"C:\\Users\\lenovo\\AppData\\Local\\Programs\\Python\\Python39\\lib\\re.py\", line 304, in _compile p = sre_compile.compile(pattern, flags) File \"C:\\Users\\lenovo\\AppData\\Local\\Programs\\Python\\Python39\\lib\\sre_compile.py\", line 764, in compile p = sre_parse.parse(p, flags) File \"C:\\Users\\lenovo\\AppData\\Local\\Programs\\Python\\Python39\\lib\\sre_parse.py\", line 948, in parse p = _parse_sub(source, state, flags & SRE_FLAG_VERBOSE, 0) File \"C:\\Users\\lenovo\\AppData\\Local\\Programs\\Python\\Python39\\lib\\sre_parse.py\", line 443, in _parse_sub itemsappend(_parse(source, state, verbose, nested + 1, File \"C:\\Users\\lenovo\\AppData\\Local\\Programs\\Python\\Python39\\lib\\sre_parse.py\", line 671, in _parse raise source.error(\"multiple repeat\", re.error: multiple repeat at position 8\nwhat shoud I do?","AnswerCount":2,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":784,"Q_Id":67455319,"Users Score":0,"Answer":"problem solved!\none of my tag contain + and it makes problem","Q_Score":0,"Tags":"python,python-3.x,instagram,instapy","A_Id":67455380,"CreationDate":"2021-05-09T07:37:00.000","Title":"Why do I have error when I change instapy like_until file?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"how to check whether the user is logged in or not from admin panel\nwhat are the changes i need to make in models.py and admin.py to achieve this\nfrom django.contrib.auth.models import User","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":119,"Q_Id":67459935,"Users Score":0,"Answer":"You can't really. Django Contrib Admin doesn't track this information. The most you can get is if User has is_staff or is_superuser to check if they could potentially visit django.contrib.admin interface.","Q_Score":0,"Tags":"python,django,django-models","A_Id":67461568,"CreationDate":"2021-05-09T16:22:00.000","Title":"Check who is logged in Django admin panel","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have created a chatbot using nltk, keras and tkinter . And i have also created a website using python and flask . how can i intergrate both of them. i.e i can i make my chatbot run after the website gets open(run)\nwhen i am importing the chatgui.py(this is chat bot file) and executing it in my main.py(this is the python file file that is building the website using the flask framework) , only any one of them is running, not the both.\nPlz suggest me some idea , how can i make both of them run.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":69,"Q_Id":67468883,"Users Score":0,"Answer":"When a client visits your site, the client computer will not execute python code. Only the server side will execute the python code, so the tkinter part of your app is not needed. The user's gui is rendered with html\/javascript in their browser.\nThere are a lot of ways to go about it, but I think the most common approach would be to scrap the GUI part written with tkinter, and instead re-create a javascript based GUI that will be served by flask. Have chats instead pass between the client and server with javascripts fetch api.","Q_Score":0,"Tags":"python,flask,tkinter,keras,nltk","A_Id":67469041,"CreationDate":"2021-05-10T10:32:00.000","Title":"How to run a chatbot created using nltk , keras and tkinter on a website created using python and flask?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to make application that send live values to AWS cloud watch like sensor data. Is there any way to send live data to cloud watch ?I made a python code that publish custom metric to AWS cloud successfully .How can i change this value Frequently?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":96,"Q_Id":67478768,"Users Score":1,"Answer":".How can i change this value Frequently?\n\nYou can't change existing metric values as they are immutable. You can only add new ones based on the increasing values of your timestamps.","Q_Score":1,"Tags":"python-3.x,amazon-web-services,raspberry-pi,boto3","A_Id":67478821,"CreationDate":"2021-05-10T23:31:00.000","Title":"How to update metrics in aws cloud watch using boto3 through python code?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am using the AWS EMR Cluster service.\nIt is a situation in which machine learning tasks such as spark-build are being performed by referring to the model file with the S3 Bucket between EMR Cluster use.\nI request a lot of head and list requests from S3, but I am wondering if it is normal for AWS EMR to send a lot of list and head requests to the S3 model file.\nSymptom: AWS EMR is about 2.7 million head and list requests per day to S3.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":182,"Q_Id":67479760,"Users Score":0,"Answer":"A lot of list\/head requests get sent.\nThis is related to how directories are emulated on the hadoop\/spark\/hive S3 clients; every time a progress looks to see if there's a directory on a path it will issue a LIST request, maybe a HEAD request first (to see if its a file).\nThen there's the listing of the contents, more LIST requests, and finally reading the files. There'll be one HEAD request on every open() call to verify the file exists and to determine how long it is.\nFiles are read with GET Requests. Every time there's a seek()\/buffer read on the input stream and the data isn't in a buffer the client has to do one of\n\nread to the end of the current ranged get (assuming its a ranged GET), discarding the data, issue a new ranged GET\nabort() the HTTPS connection, negotiate a new one. Slow.\n\nOverall then, a lot of IO, especially if the application is inefficient about caching the output of directory listings, whether files exist, doing needless checks before operations (if fs.exists(path) fs.delete(path, false)) and the like.\nIf this is your code, try not to do that\n(disclaimer: this is all guesses based on the experience of tuning the open source hive\/spark apps to work through the S3A connector. I'm assuming the same for EMR)","Q_Score":0,"Tags":"list,amazon-s3,python-requests,amazon-emr,head","A_Id":67485267,"CreationDate":"2021-05-11T02:25:00.000","Title":"I am wondering if it is normal for AWS EMR to send a lot of list and head requests for S3 model files","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I would like to scrape multiple URLS but they are of different nature, such as different company websites with different html backend. Is there a way to do it without coming up with a customised code for each url?\nUnderstand that I can put multiple URLS into a list and loop them","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":32,"Q_Id":67484189,"Users Score":0,"Answer":"I fear not, but I am not an expert :-)\nI could imagine that it depends on the complexity of the structures. If you want to find a the text \"Test\" on every website, I coul imagine that soup.body.findAll(text='Test') would return all occurences of \"Test\" on the website.\nI assume you're aware of how to loop through a list here, so that you'd loop through the list of URLS and for each check whether the searched string occurs (maybe you are looking for sth else , i.e. an \"apply\" button or \"login\" ?\nall the best,","Q_Score":1,"Tags":"python,web,web-scraping,beautifulsoup","A_Id":67484276,"CreationDate":"2021-05-11T09:39:00.000","Title":"Scraping Information from multiple URLS that are different in structure","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Say that I have a Python Flask server running which has a backend script that produces a number and a string.\nHow can I pass the number and string from the backend to a script that runs of client-side so that the user can run it rather than the server?\nExample:\nbackend script data_producer.py produces \"asdaslkdjasdlksja\" and 18 from its functions\nI want to pass \"asdaslkdjasdlksja\" and 18 to a Brython or JavaScript HTML embed ( tag) so that it can be processed in the browser and the results be sent back to my server.\nEdit: I realized that I can just use Jinja2's \"{{ }}\" when rendering a template so that I can use data in an HTML script embed","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":48,"Q_Id":67495121,"Users Score":0,"Answer":"The question you asked is too broad. It's almost equivalent to asking, how you can connect two computers. Since you haven't even specified any data type, the first thing that comes to my mind is using sockets which is as low level as you can get.\nA more high level and appropriate approach would be to use an HTTP REST server (with flask-RESTful), since you already have a flask server running.\nHowever, there's another million ways to transfer data between two Python scripts, from WebSockets, WebRTCs, sshing, the new IPFS to even emails. Now most of them would probably be overkill, so I would suggest you to make a simple REST server and make the client send GET or POST requests to it.\nAfter looking at the new edit, I still think a REST api is the best option. Since you can easily make a GET or POST request using the fetch api in Javascript. In Brython you can use ajax to do the same thing.","Q_Score":0,"Tags":"python,flask","A_Id":67495247,"CreationDate":"2021-05-11T22:30:00.000","Title":"Backend script passing data to client-side script","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"We have an existing python application (let's call it control app) that does operation data logging as well as smaller controlling tasks on a machine. We want to extend this application with a web interface, which is based on flask (let's call it web app). Both parts, the control app as well as the web app, are already present, however, the setup feels somehow fishy. In the process of rethinking the setup, I'm somehow undecided on how to structure those two parts.\nAt the moment, the control app gathers machine data and stores it in a postgres database. Based on several machine states, additional operations are performed that provide new input for the PLCs that control the machine.\nThe web app currently polls the database to react to machine states to e.g. update visualisation data, change some (state representing) images and such things.\nThe web app polling the database is the part that somehow smells. So my idea was to unify both apps into one to have the web app tightly coupled to the control app to be able to react on machine state changes instead of polling the database for those state changes.\nBased on that idea, I'm wondering how to add a flask app to an existing python app. When I'm not mistaken, the flask app consumes the application's main thread, which would break to already existing logic. Thus I would need to have one of the two parts running on another thread. Thinking about this problem, I'm further wondering whether this merging is a good idea at all.\nSo, the questions are: Is it a good idea to merge both applications? If yes, how to merge them without breaking one of them? If not, how else should I try to get rid of the database polling (how to synchronize and also move some data from the web app to the control app)?","AnswerCount":1,"Available Count":1,"Score":0.537049567,"is_accepted":false,"ViewCount":62,"Q_Id":67499881,"Users Score":3,"Answer":"It's not a good idea to merge them per se -- problems in one part will affect the other, and this sort of tight coupling is a bad idea both because you can't run the two parts of the program on separate machines and because if one crashes, so does the other one. It's better to have them communicating over some sort of protocol.\nIf I were designing this, I would probably do the same thing as you did, except that instead of using an SQL database for this, I would use something like Redis which stores its data in memory. Redis allows you to subscribe to events rather than poll for updates, and polling for updates is cheaper because it's in memory.","Q_Score":0,"Tags":"python,postgresql,flask","A_Id":67500138,"CreationDate":"2021-05-12T08:25:00.000","Title":"Add flask based web interface to existing application","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I tried crawling a specific site using selenium and webdriver_manager.chrome, and my code crawled elements of that site totally. But after crawling, the following error message appears in the console window.\nERROR:gpu_init.cc(426) Passthrough is not supported, GL is disabled\nWhen I first found it, I unchecked Hardware hardware accleration of chrome also it didn't solve the problem.","AnswerCount":4,"Available Count":1,"Score":0.049958375,"is_accepted":false,"ViewCount":103063,"Q_Id":67501093,"Users Score":1,"Answer":"I got this error as a result of using NVIDIA's Quadro view so for me the fix was to disable that.","Q_Score":35,"Tags":"python,selenium,selenium-webdriver,selenium-chromedriver","A_Id":68651358,"CreationDate":"2021-05-12T09:42:00.000","Title":"Passthrough is not supported, GL is disabled","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am using Firebase authentication to authenticate users. Whenever, the user is logged in, I get the user's ID token with user.getIdToken(true) and set it on the local storage. With that token in the authorization header, I am requesting my back-end API.\nOn the back-end side, I am using Firebase admin SDK to authenticate the request and the user with the client-side ID token passed in the request authorization header.\nThis works for a while. But after some time I get error:\n\nExpiredIdTokenError: Token expired, 1620908095 < 1620915515\n\nI saw that Firebase refreshes the ID token on its own. But I don't think that's the case. I have looked through the developer tools network tab, and there's also an observer method to check whenever the token has changed => onIdTokenChanged(), but the token is never refreshed.\nI couldn't find any information on the Firebase docs either, and I was hoping if you could help me:\n\nHow can I generate a token without expiration limit to last until signed out or at least for some more time (1 week maybe)?\nIf I cannot the set the expiry limit of the token, what steps should I take so that I can send a valid unexpired token when I am request data from my back-end? Do I have to call user.getIdToken(true) every-time and get a fresh token before I request from my back-end API?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":164,"Q_Id":67521781,"Users Score":2,"Answer":"The idTokenChanged() observer is a bit misleading. It will fire when the token is refreshed, but the token is only refreshed automatically when you also use other Firebase products (like its database or file storage). In other cases, as you said you should call user.getIdToken(), which will refresh an expired token for you if necessary, everytime you call your API. You don't need to pass true into this method unless you want to have a completely fresh token everytime (which you most likely don't need).\nTo my knowledge you cannot control the expiration of tokens generated with the client SDK, for that you would need to generate your own tokens on the server.","Q_Score":2,"Tags":"javascript,python,firebase,vue.js,firebase-authentication","A_Id":67521899,"CreationDate":"2021-05-13T15:18:00.000","Title":"How to handle expired user ID token in firebase?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"When I tried to create Django project in virtual Environment, I am getting below Error,\nC:\\Users\\new\\Desktop\\Desktop Files\\Django Projects>activate myDjangoEnv\n(myDjangoEnv) C:\\Users\\new\\Desktop\\Desktop Files\\Django Projects>django-admi\nn startproject first_project\nTraceback (most recent call last):\nFile \"C:\\Users\\new\\anaconda3\\envs\\myDjangoEnv\\lib\\site-packages\\django\\apps\\config.py\", line 7, in \nfrom django.utils.deprecation import RemovedInDjango41Warning\nFile \"C:\\Users\\new\\anaconda3\\envs\\myDjangoEnv\\lib\\site-packages\\django\\utils\\deprecation.py\", line 5, in \nfrom asgiref.sync import sync_to_async\nFile \"C:\\Users\\new\\anaconda3\\envs\\myDjangoEnv\\lib\\site-packages\\asgiref\\sync.py\", line 114\nlaunch_map: \"Dict[asyncio.Task[object], threading.Thread]\" = {}\n^\nSyntaxError: invalid syntax\nPlease help me on this.Thanks in advance","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":1153,"Q_Id":67543633,"Users Score":0,"Answer":"1 Create a new virtual environment.\n2 install the latest version of python and other packages.\n3 install the latest version of Django","Q_Score":1,"Tags":"python,django,django-models","A_Id":70182763,"CreationDate":"2021-05-15T05:46:00.000","Title":"launch_map: \"Dict[asyncio.Task[object], threading.Thread]\" = {} -Error While Creating Django Project","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I currently have a socketio webserver using WSGI and I host it with gunicorn. I also have set up a javascript client which uses a web browser. I've managed to get these two to be able to communicate.\nI'm working on creating an information service which takes events which happen in a game from a log and then parses it through a seperate python script to create a readable GUI. But that bit doesn't really matter.\nOnce I have my string of text from my seperate python program, how do I send it to all clients connected to my webserver? The program isnt part of the socketIO server so, as far as I'm aware, can't use emit().\nMy idea was to create a seperate python client which connected to the socketio server and do it that way. I've illustrated the flow below:\n\nsocketIO python Client -- DATA --> socketIO server\nsocketIO server -- DATA --> ALL socketIO clients.\n\nI'm struggling to be able to work out a way to perform this? Could anyone help or suggest a more efficient way? Let me know if my explanation is unclear.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":33,"Q_Id":67550430,"Users Score":0,"Answer":"Thanks Miguel, I hadn't seen that in the documentation. Despite reading it over and over, I was stuck for a while. My stupid mind didn't come across the thought that I'd need to install Redis-server...\nAll working now!\nLesson learned: check requirements for my program...","Q_Score":0,"Tags":"python-socketio","A_Id":67661308,"CreationDate":"2021-05-15T19:18:00.000","Title":"Sending data generated from a seperate python program to socketIO clients with a socketIO server","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a basic background in DS with Python and I try now the first time to build an application and I need a bit advise which infrastructure to choose on AWS and how to structure the application. The code I can develop\/google on my own :)\nThe main question is: Where\/On which platform of AWS should happen Step 2. I guess I miss there some basic knowledge of applications and therefore I have problems to google the problem myself.\nWhat should happen by the application:\n\nOn a website a user types in values in a form and this values are sended  somewhere so be processed. (Already coded)\nNow, this values (so far an email with the values) has to be sent somewhere to be processed. Here I do not know in which infrastructure of AWS I can write an application that can receive this values (\/email) directly and process it automatically?\n3.\/4. Automated process of values, pdf creation and sending etc.\n\nGoal is that always when a user uses the website and sends the email, that the automated process is triggered.\nThank you for your help! :)","AnswerCount":2,"Available Count":1,"Score":0.0996679946,"is_accepted":false,"ViewCount":51,"Q_Id":67551103,"Users Score":1,"Answer":"I would suggest you use a \"fanning out\" architecture with something like Eventbridge or SNS topic.\nWhen your user submits form, you publish a message to an SNS topic.\nThat topic can send an email, and also send the data to a  backend service like lambda to save to something like DynamoDB or something like RDS MySQL.","Q_Score":0,"Tags":"python,amazon-web-services,automation,architecture,infrastructure","A_Id":67551504,"CreationDate":"2021-05-15T20:49:00.000","Title":"Which AWS infrastructure to choose to write an automated application in python?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I'm working with React in the front-end with Material-UI, and I would like to auto generate forms based on my serializer's schema.\nUsually, the way that CRUD works in the app is by listing the registers, and then give the option to add, edit, or remove registers.\nSo, my idea would be to get the serializer's schema in the listing part of the CRUD and then use it to generate the forms later on. Is there anyway to do this? I'm thinking about maybe creating an npm package to help on it...\nThanks","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":25,"Q_Id":67563076,"Users Score":1,"Answer":"If you use ModelSerializer and ModelViewSet, you can get the description of the serializer schema sending an OPTIONS request to the endpoint and use it in the front end for building your form based on that information. You even get the choices when the field of the model has them set.","Q_Score":1,"Tags":"python,reactjs,django,django-rest-framework,material-ui","A_Id":67563173,"CreationDate":"2021-05-17T01:41:00.000","Title":"Generate forms from serializer","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm kinda new to web security.\n\nDoes certbot automatically provide an RSA key to the server and encrypt\/decrypt the whole path(SSL) of the connection (From client to server and server to client) and make it HTTPS?\nDo I simply not bother about security while developing a web app and simply make my app in HTTP and use certbot to make it secure?\nDoes SSL protect against replication attacks?\nIf the answer to 1 is no, please suggest a python module to encrypt the Flask app.\n\nThanks.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":46,"Q_Id":67566716,"Users Score":0,"Answer":"Certbot provides an SSL certificate which can be used to encrypt your connection and register you with a third party (let's encrypt). When users connect to your app, they will first verify your servers identity with let's encrypt before encrypting your connection. If you're using a server like NGINX then the easiest way to use certbot will be with the nginx certbot plugin.\nHTTPS is not a security wildcard, it does provide encryption between two endpoints, preventing a host of MITM attacks but there are many threat vectors to consider. Depending on how your app works you'll still need to worry about SQL injections, malicious file uploads, remote code execution etc. HTTPS has great added security benefits absolutely, but it shouldn't replace any other security methods.","Q_Score":0,"Tags":"python,flask,certificate,ssl-certificate,certbot","A_Id":67569062,"CreationDate":"2021-05-17T08:56:00.000","Title":"Does certbot automatically provide encyption?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Please help me. I have a project on Django, in which some of the processes go through celery. But now I want to transfer all the complex data processing to another server. I plan to use FastApi. But the question arose - how to properly organize the work with the client files that will be processed . Do I need to receive files from the client and save them on the second server, or do I need to save them on the first server and send them over tcp? Perhaps there are other options ? How do I do this ?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":35,"Q_Id":67568342,"Users Score":1,"Answer":"django-storages .It covers all my needs","Q_Score":1,"Tags":"python,django","A_Id":68128548,"CreationDate":"2021-05-17T10:57:00.000","Title":"Django FastApi 2 servers","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"We want to implement attribute prediction and image search model in single application.\nStep1. Upload of image ,will give attribute details.\nexample ,If we upload dog image, then attribute details will display like color, breed.\nstep2. On click of any attribute will show similar matching result.\nexample on click of attribute  like breed it will display matching breed  dog images from image data.\nPlease suggest ,how we can achieve that","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":47,"Q_Id":67581498,"Users Score":1,"Answer":"With step 1, I recommend you should use a multi-label images classification. It will help you get attribute of input image like what object in in the image, what color is it,...\nWith step 2, you can query the attribute in your database or you can use a recommendation system for more advance.","Q_Score":0,"Tags":"python,machine-learning,computer-vision,artificial-intelligence","A_Id":67582589,"CreationDate":"2021-05-18T07:10:00.000","Title":"How we can implement attribute prediction and image search model as one?","Data Science and Machine Learning":1,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I was guessing whether there are some build-in options using SpaCy 3 in combination with k-folds cross-validation.\nI would like to run a 10 folds cross validation on a dataset of approx. 17.5k job descriptions to receive the best performing model in the end.\nDocumentation isn't telling anything about these options.\nI think I can do some workaround by hand if the option does not exist.\nThanks in advance!","AnswerCount":1,"Available Count":1,"Score":0.3799489623,"is_accepted":false,"ViewCount":410,"Q_Id":67589186,"Users Score":2,"Answer":"spaCy does not have any built-in handling for cross validation, no.\nWith v3 using the config training, you'd probably want to generate train\/dev split .spacy files before several training runs to do cross validation.","Q_Score":3,"Tags":"python,spacy,named-entity-recognition","A_Id":67597133,"CreationDate":"2021-05-18T15:17:00.000","Title":"SpaCy 3 Cross validation","Data Science and Machine Learning":1,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to setup Crispy Forms on my Django environment. I have installed Crispy Forms using pip3 install --user django_crispy_forms and I have added the 'crispy_forms' to the INSTALLED APPS within my settings.py file.\nAlthough, I am unable to boot up my gunicorn service file, as an error is displaying \"ModuleNotFound Error crispy_forms\"\nJust to ensure that Crispy Forms is installed, I tried to rerun the installation to which I receive a message \"requirements are already satisfied\".\nAny ideas to what could be causing this behaviour?\nEdit: If I remove 'crispy_forms' from the INSTALLED APPS area, my gunicorn service boots up perfectly fine.\nThanks!","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":49,"Q_Id":67605899,"Users Score":0,"Answer":"I resolved my issue!\nHere's what I did - Using the newest version of Crispy Forms didn't seem to work and my Gunicorn was throwing the \"ModuleNotFound\" error during the boot up phase.\nSo I instead installed django-crispy-forms==1.9.2 by making it apart of my requirements list and then running pip3 install -r requirements.txt which resolved my issue.","Q_Score":0,"Tags":"python,django","A_Id":67607372,"CreationDate":"2021-05-19T15:06:00.000","Title":"Gunicorn - ModuleNotFound crispy_forms (But is installed)","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to ask a question, that Django provides us with Django Template Language (DTL), when we write HTML and CSS code in the DTL does it considered as Frontend? As we are rendering HTML and CSS code in DTL just like  we do in all other Frontend stack framework.\nDjango Template Language (DTL) is just like Embedded JavaScript.\nEmbedded JavaScript is considered as language for Frontend than why Django Template Language is not?\nI heard from someone he was saying that Django is only for server side code it has nothing to do with Frontend.\nKindly help me out.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":107,"Q_Id":67612254,"Users Score":0,"Answer":"Answering my own question\nYes. The template language is considered frontend. It uses html, css, js.\nAs a matter of fact, the Django developers are not keen on providing highly complex template tags to keep the template language simple for frontend developers who don\u2019t have much experience in advanced programming. There are no designed template, you still need to create the html, css on your own if you are using standard Django package.","Q_Score":0,"Tags":"python,reactjs,django,web,frontend","A_Id":67646128,"CreationDate":"2021-05-19T23:48:00.000","Title":"Django DTL for Frontend","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am working on a FLASK App for a client and he wants to limit the Routes for the individual users (without login or authentication tho). So for example a user has 4 calls available and can use all of them on that day, another one has 4 calls as well so he can also use them on the same day.\nIs there a way to do that without the information of who the user is, nor storing any information about the user in database?\nI found something similar thats already build in in FLASK it self but thats just a Limitation for the route itself, so the route has 100 calls avaible a day and thats it.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":41,"Q_Id":67616778,"Users Score":0,"Answer":"The more effective way of achieving this is probably to authenticate your user, but it seems you want to avoid that.\nYou also can try to identify the user, for example with the IP address, but you should be very careful as this can have side effects, like assuming two different users are the same because they share their IP address.\nThird way, you can use something like a cookie to store the number of calls already used, on client side. However, the user can easily change or delete the cookie.","Q_Score":0,"Tags":"python,flask,flask-login","A_Id":67617256,"CreationDate":"2021-05-20T08:32:00.000","Title":"Is there a way to limit API calls for the individual users","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am at a beginning of a \"company web app project\". I tried a Django cookiecutter template, and so far I like what I see. What I see I won't need is the user registration, password reset, social-app logins, and so on, because I will use LDAP for my user login.\nAfaik the stuff I don't need is provided by that \"allauth\" apps (please correct me).\nWhat would be the steps needed to remove this functionality so I can have the authentication more like when starting a project via Django \"starproject\"?\nI don't have any crucial data in the DB, or any models I care about, so instructions for a fresh start would be ideal.\nMY idea was to remove the allauth apps from \"APPS\" in settings and only then do the initial migrations, but something tells me it won't be that easy.\nI am an intermediate python dev, but new to Django.\nThank you all in advance for your ideas.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":271,"Q_Id":67618606,"Users Score":1,"Answer":"Allauth doesn't force any particular user model on you, so it probably will be that easy \u2013 remove the installed_app, remove any urls references, remove the package(s) from requirements.","Q_Score":0,"Tags":"python,django,django-allauth,cookiecutter-django","A_Id":67618627,"CreationDate":"2021-05-20T10:30:00.000","Title":"Remove allauth from Django project created by cookiecutter","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I made a wrapper for aws cloudwatch in python with boto3.\nAnd I am doing the unit test with moto, everything go smoothly in my local PC.\nAfter I pushed my code to Azure Repo to trigger the pipeline, I always get the error message.\nI want to know how is the compatibility of Azure pipeline to run the 'moto' library.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":83,"Q_Id":67633829,"Users Score":0,"Answer":"After testing for few days I found the problem finally.\nI have to scale my searched day to contain my logs timestamp\nIt means my timestamp of metrics is datetime.today(), and I need to set the Metric Data Queries start date and end date parameter to datetime.today() -(+) timedelta(1) to scale the query date, I don't really know why it work without the scaling in local PC.","Q_Score":0,"Tags":"python,azure,azure-devops,amazon-cloudwatch,moto","A_Id":67665918,"CreationDate":"2021-05-21T09:04:00.000","Title":"Unit test failed with moto in azure pipeline","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I use DRF and django-storages to upload files to a S3 bucket.\nI can create from the admin or from a POST to the API endpoint any new entry with a file.\nBut for some reason, as soon as I try to update the instance (be it from the admin or from the API endpoint), I get a ValueError that seems to indicate that DRF can't find the file.\nBut when I use Django's admin or shell, I see that the file has been correctly saved (FieldFile on instance) and that the file has been saved in the bucket.\nI don't override anything: not the admin forms, not the serializer's update method, not the view's retrieve method, etc.\nI have no idea how that could even be possible.\nAny suggestion?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":20,"Q_Id":67643572,"Users Score":0,"Answer":"I ended up finding the solution. Somewhere in my code one of the serializer's fields had a to_representation() method that was returning the instance instead of the instance.url. I hope that this will help anyone.","Q_Score":0,"Tags":"django-rest-framework,python-django-storages","A_Id":67644086,"CreationDate":"2021-05-21T20:36:00.000","Title":"ValueError: The 'field_name' attribute has no file associated with it - only when updating?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I try to establish a website-connection(web-login) via python. The login appears to need 3 keys (next to password and username of course). 2 of them are handed over via get and the third one is a csrf-key. The csrf-key is not contained in the html body of the current page nor is it in the link. (I checked this explicitly by using strg+f)\nWhat other common ways are there to generate the csrf-key on the fly? (I explicitly checked by inspecting the post request that the csrf is included in the request, but I don't understand how it gets there)","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":24,"Q_Id":67648915,"Users Score":0,"Answer":"The csrf key must be somewhere in the webpage you are trying to access.\nThe csrf key is not generated by the user, instead, it is a unique secret value generated by the server-side application and transmitted to the client.","Q_Score":0,"Tags":"python,html,authentication","A_Id":67659054,"CreationDate":"2021-05-22T11:22:00.000","Title":"csrf-key not as hidden input or as get: How can it be generated?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have deleted a folder named accounts from my Django project and tried to run the file, but getting this error\n\n\"ModuleNotFoundError: No module named 'accounts'\"\n\nEven though I have deleted manually, it's asking me to delete the paths as well. How to get over from this error?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":58,"Q_Id":67654322,"Users Score":0,"Answer":"How DjangoStarter said, check your installed apps and the imports in other apps.","Q_Score":1,"Tags":"python-3.x,django,django-models,web-development-server","A_Id":67655460,"CreationDate":"2021-05-22T21:27:00.000","Title":"When I delete a folder or a file in Django manually and try to run the project I'm getting error on the same module which I have deleted?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"After trying to run \"service apache2 reload\" on the raspberry terminal, I get an error\nThe error log reads:\n\"apache2.service is not active, cannot reload.\"\nHow do I activate \"apache2.service\" on the raspberry pi?\nI've already installed apache2 on my raspberry pi, but I can't reload it.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":74,"Q_Id":67658607,"Users Score":0,"Answer":"Please try this one sudo service apache2 start . Make sure apache is properly installed in your system.","Q_Score":0,"Tags":"python,flask,web,server,raspberry-pi","A_Id":67658658,"CreationDate":"2021-05-23T10:19:00.000","Title":"How to activate apache2 service on Raspberry Pi","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I have a blog and an application that gives the number of comments and posts on my blog by using my blog's API.\nThe issue I'm having is that I want to have my application receive new comments from my application in real-time.\nMy solution:\nI can have my application calling the API every 30 seconds or so to check whether there is a response (i.e. whether there is a new comment).","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":20,"Q_Id":67660673,"Users Score":0,"Answer":"I think the best solution is to use something called Long Polling to get updates. Its a technique in programming to handle requests with less resources such as CPU being used over time. For a detailed solution for your case search for\n\nLong Polling in Flask application","Q_Score":0,"Tags":"python,api,flask","A_Id":67660767,"CreationDate":"2021-05-23T14:12:00.000","Title":"How to get new (real time) comments from my blog?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to extract image from Tableau workbook using REST API in python.\nI am able to get token for Tableau authentication and fetch corresponding workbook and view id.\nWhen i am extracting image using API like :-\nurl = \"http:\/\/tableau.xyz.com\/api\/3.7\/sites\/bfda4337123971272\/views\/b55-83e229905e17\/image?image-resolution=high\"\nI am able to save the response in png image and able to get the output of worksheet in image but when the worksheet has large detailed data with long scroll down bar, the image is not getting fully extracted. The response size is less than 50 MB which is maximum limit .\nCan someone please suggest if we need to add any other options in GET URL in python.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":74,"Q_Id":67690005,"Users Score":0,"Answer":"That\u2019s how requesting an image works here.\nIf your view is a worksheet instead of a dashboard or story, you can paginate it by putting a field on the pages shelf, and using the Page Setup menu command in Tableau Desktop to specify page formatting details.\nAnother option is design your dashboard to fit on a page and then have a filter or parameter that allows you to paginate through data. (You can pass a filter or parameter setting with the URL)\nTypically, you want to design a version of your Tableau view that is laid out well for printing. You don\u2019t typically get great results by simply printing a view that was designed to be used interactively on a computer screen. That\u2019s less effort than it sounds, because both views can use the same underlying data sources, and many of the same component views.","Q_Score":1,"Tags":"python,image,api,rest,tableau-api","A_Id":67696532,"CreationDate":"2021-05-25T14:25:00.000","Title":"Extract image Scrolldown issue using Tableau REST API in python","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm not sure how to word this differently but I'm integrating Atoti with a Django project using their project template, I've searched a lot in their documentation but I can't seem to get an answer about this.\nWhat I need to do is after a button click on a Django view, redirect the user to a custom Atoti Dashboard that's already populated with a specific information already displayed (for example, a line graph with a title). I don't need to save it unless the user wants because we're planning on using Atoti mainly as means of visualization.\nAt this point in time, I can only redirect the user to the standard Atoti dashboard with my information and then create what I need to display but that's not user friendly at all and presumes the user has knowledge with Atoti.\nAnyone know if this is possible and if isn't, anyone has any suggestions on good Data Visualization libraries that make use of Django?\nThanks in advance.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":135,"Q_Id":67691890,"Users Score":0,"Answer":"You could save the custom atoti dashboard and use its ID (the last part of the URL when you have the dashboard opened in a browser tab) to redirect your user to f\"{session_url}\/#\/dashboard\/{dashboard_id}\".","Q_Score":1,"Tags":"python,django,django-views,django-templates,atoti","A_Id":67708352,"CreationDate":"2021-05-25T16:18:00.000","Title":"Create an already populated dashboard with a displayed graph in Atoti using Django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"The way my application is built, Dash is going to reload the whole page every time a new selection is made in a dropdown or through a date slicer, for example. Depending on how many visualizations I'm willing to build, this may lead to a performance issue. Is there a way to keep Dash from updating the whole layout?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":52,"Q_Id":67710074,"Users Score":0,"Answer":"Dash callbacks are only going to update the specific outputs they have listed, not the entire layout. Dash creates React components, and that's how React works. You haven't shared any code, but it sounds like you could be much more specific with the outputs your callbacks are changing.","Q_Score":0,"Tags":"python,plotly,plotly-dash","A_Id":67713698,"CreationDate":"2021-05-26T17:38:00.000","Title":"Is there a way to make Dash not update the whole layout at every user interaction?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I began my project without creating a virtual environment. Now I am wondering how big of a mistake was that. pip install Pillow not executing no matter what I do to include an image in my classs Model. Can or should I migrate my files to a new virtual environment. Or should I start coding from scratch.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":40,"Q_Id":67730136,"Users Score":6,"Answer":"You don't have to start coding from the scratch. You can create a new virtual env using python -m venv <name-of-the-env> and install your dependencies.","Q_Score":0,"Tags":"python,django,virtualenv","A_Id":67730166,"CreationDate":"2021-05-27T21:20:00.000","Title":"Should I start over my project in a new Django Virtual Environment","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am creating an app that allows me to edit users on the frontend. Before doing this I wish to have all the users listed in a page. They are categorized by their group. Users that are in a group show up how they are supposed to. I want to also display users that are not in a group.\nThis is how I fetch the users in a specific group:\ngroupuser = User.objects.filter(groups__name='mygroup').\nHow do I display a user without any group in my template?\nI am new to Django and don't know much about this.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":73,"Q_Id":67738678,"Users Score":5,"Answer":"You can use the field lookup __isnull.\nUser.objects.filter(groups__isnull=True) gives you all the users that do not belong to any group.","Q_Score":0,"Tags":"python,django,usergroups","A_Id":67738746,"CreationDate":"2021-05-28T12:16:00.000","Title":"Display users without a group in a template Django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I would like to about Django, node js, and PHP hosting along with MySQL database.\nhow can we host them online, please suggest to me some websites for that? can I host the Django website with MySQL on GoDaddy, Bluehost or do I need to use cloud services like AWS Azure, etc?\nhow to set up a domain for these websites.\nwhat is the difference in hosting the website using\ncan you host these website on a Cpanel and is there any other way also to host","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":42,"Q_Id":67776852,"Users Score":0,"Answer":"The choice is really yours, you can install all of them on a single VPS server which\nshould be powerful enough to run them and you need to configure your Nginx or Apache2 to access them on a proxy level or with a different subdomains, or you can host them on separate servers, when you will get the domain you need to point it to your server(s) or create a reverse proxy which in turn will reflect another domain. Platforms like Azure provide more control over DevOps. Cpanel is just a tool that allows you to have more simple the process of hosting a web site. Some platforms like Heroku make the hosting process much more easier, you just deploy your code and its running like a charm no need to configure anything or install certificates, the only downside is that when you would want to scale your app the resources are stupid expensive at Heroku. I would prefer a VPS server over all of these, because of more control and flexibility.","Q_Score":0,"Tags":"python,node.js,django,web-services,web","A_Id":67777101,"CreationDate":"2021-05-31T15:47:00.000","Title":"django , node js, php website hosting and domain information","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"so I am trying to use javascript or python (or anything else that can do it) to get the pitch and volume of an mp3 file at every few milliseconds. Any help would be greatly appreciated, thank you.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":144,"Q_Id":67788534,"Users Score":2,"Answer":"Pitch is related to how fast the amplitude of a signal changes, so it needs to be calculated over a block of time, rather than at an instant.\nI'd suggest decoding your mp3 into a waveform (there are Python libraries that will put this in a numpy array for you) then take a section at a time and do the following:\n\nRun an FFT (search for numpy FFT) on the block to find the frequency content. Typically a sound at a particular pitch will have a base frequency and there will also be harmonic content i.e. frequencies at integer multiples of the base frequency. Additionally, you may have more than one contributing sound, so there will be multiple base frequencies each with their own harmonics. The FFT will work out what frequencies there are assuming that he block then repeats forever. Unfortunately the start and end amplitude of your signal won't match at the start and end of your block, so this assumption is like there's a sudden jump in amplitude. That is going to cause artifacts in your FFT result, so if it is a problem in your application you will need to look into windowing before running an FFT. This attenuates your block at the start and end, so they line up at zero.\nIdentify which FFT peak relates to the pitch you want to record. This may be the highest peak for example. The frequency of this peak is the pitch for this block.\nTake the root-mean-squared (RMS) of the block (from the original array, not the FFT) and use this as a measure of volume.\n\nYou can then move to the next block and repeat, so if your block size is 440 samples (10ms at 44kHz sampling rate) take your first block from 0 to 439, then the next from 440 to 879 etc.\nYou could also do a sliding block if you want, e.g. advance your 440 sample block by say 44 samples each time, so the first block is 0 to 439 and the next is 44 to 483.","Q_Score":0,"Tags":"javascript,python,mp3","A_Id":67789247,"CreationDate":"2021-06-01T12:01:00.000","Title":"Get pitch of mp3 files at every few ms","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"django.db.utils.IntegrityError: column \"pinned\" of relation \"blog_post\" contains null values\nI migrated and did everything in localhost and Heroku server but I don't know how to solve this error.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":54,"Q_Id":67788874,"Users Score":0,"Answer":"If column 'pinned' of blog__post is a non-nullable field, there is an entry in your database that is null for 'pinned'. Locate the entry and give it a value.\nUse heroku run python manage.py makemigrations to create migrations on heroku server then you run heroku run python manage.py migrate to update your database tables.","Q_Score":0,"Tags":"javascript,python,django,xcode,error-handling","A_Id":67789842,"CreationDate":"2021-06-01T12:28:00.000","Title":"I have a problem in my Django project when I try to push to heroku a problem occurs","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to bring up a Django project with the below dep:\npython 3.6 and django>2.0\nAll dependencies have been successfully installed but when I try to bring the server up it gives me the below error and exit after that:\n\n[1]    3298 illegal hardware instruction  python manage.py runserver\n\nI am using MacOS Big Sur 11.2.2 with Apple M1 chip.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":180,"Q_Id":67789002,"Users Score":0,"Answer":"pip install --no-binary psycopg2 pyscopg2","Q_Score":3,"Tags":"python,django,macos,apple-m1","A_Id":71168861,"CreationDate":"2021-06-01T12:37:00.000","Title":"Getting Illegal instruction: illegal hardware instruction python manage.py runserver on Apple M1 chip","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"Before running buildozer I put a java file in ga\/chatme\/web\/WebHandler.java.\nThen, I set the android.add_src to ga\/chatme\/web but, I cant seem to import it with autoclass('ga.chatme.web.WebHandler')","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":51,"Q_Id":67795515,"Users Score":0,"Answer":"I fixed it by putting everything in an src folder then pointing android.src to it","Q_Score":1,"Tags":"python-3.x,pyjnius","A_Id":67796207,"CreationDate":"2021-06-01T20:17:00.000","Title":"how do I compile java files and import them with pyjnius with kivy","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":1,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am using python version 3.7. I installed the package scrapy using the command pip install scrapy which got installed along with other dependencies successfully.\nI then ran the command scrapy startproject newproject, this resulted into an error that reads 'scrapy' is not recognized as an internal or external command, operable program or batch file.\nI also ran the command scrapy on the command line, it gave the same error.\nNote: when I ran the command pip list, scrapy was among the installed packages.\nHow can i fix this please?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":537,"Q_Id":67801494,"Users Score":0,"Answer":"So, I was able to solve the method using two different methods:\nThe first method includes the following:\n\nI installed it using anaconda with the command conda install -c conda-forge scrapy, and then activated the conda environment using conda activate.\nAfter running scrapy startproject newproject this time, it worked successfully.\n\nNote: You need to have anaconda or miniconda installed for this to work successfully.\nThe second method includes the following:\n\nI created a virtual environment using the command python -m venv venv and then activated it using the command venv\\scripts\\activate.\nI ran the command pip install scrapy. I got an error here error: can't find Rust compiler, i was using the pip version: 19.0.3. So I solved the issue by upgrading the pip version by using th command pip install --upgrade pip which upgraded it to the version pip 21.1.2\nso after running the pip install scrapy command again, it worked successfully.\n\nThroughout the whole process I noticed that, the scrapy command didn't work without being activated in a virtual environment even though the installation worked.","Q_Score":0,"Tags":"python,scrapy","A_Id":67801495,"CreationDate":"2021-06-02T08:22:00.000","Title":"'scrapy' is not recognized as an internal or external command after installation","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to allow an admin\/superuser to set already created users to be also a superuser. How would I go about this? I am new to Django.\nThere is a separate user editing page and I want to add a button that would by clicking it change the is_superuser to True.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":85,"Q_Id":67808876,"Users Score":0,"Answer":"Then make the button that calls a view the does the change of is_superuser and is_staff and return a success message. This can be done by ajax using $.ajax","Q_Score":1,"Tags":"python,django,django-admin","A_Id":67809676,"CreationDate":"2021-06-02T16:15:00.000","Title":"Django Make user to superuser on the frontend","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am rather new to java and tomcat and wanted to see if I could get yalls help in an understanding of what's happening.\nI am noticing in our tomcats catalina.sh file, the following env vars are set:\nexport JAVA_HOME=\"\/home\/aim111prod\/jdk-11.0.7+10\"\nexport JAVA_OPTS=\"-Xms8192m -Xmx8192m -Drhino.opt.level=0 -Djava.awt.headless=true -Dcom.aw.aim.bootstrap.file=\/home\/aim111prod\/conf\/Catalina\/bootstrap.xml -Dfile.encoding=UTF8 -Djava.locale.providers=COMPAT -Duser.language=en -Duser.country=US\"\nTomcat is running, but when I run 'printenv' these 2 env vars do not appear in 'printenv' results.\nI am hoping to eventually write a simple start\/stop\/restart script using python3.\nI am assuming because 'printenv' is not showing the 2 set java options in catalina.sh that os.environ.get() wouldn't work either.\nWhat I am noticing is that when 'printenv' is used,\nJAVA_HOME=\/usr\/lib\/jvm\/jre\nI suppose I am needing some help in understanding the way the 2 environment variables are being used?\nHow would I reference the 2 env vars set in catalina.sh with python if 'printenv' isn't picking them up?\nPlease take it easy on me lol I am not as smart as some of you all, but I am trying!\nThank you for your help \/ time\/ suggestions.\n--\nbash-brain","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":292,"Q_Id":67810985,"Users Score":0,"Answer":"It sounds like you're expecting catalina.sh to set those environment variables, and have the changes take effect system-wide.  But environment variables don't work like that; export changes the environment of the current process and any child processes.\nIt doesn't affect any parent processes, or unrelated processes on the system.\nOne solution is to write a wrapper shell script that sources catalina.sh (to set up the environment variables in the process that's running your wrapper script), then calls python.  The python program would then be able to see the correct set of environment variables.  Note:  you would have to use a command like source catalina.sh or . catalina.sh to run the commands in catalina.sh in the current process.  If you simply execute catalina.sh as a standalone command, it will run in a new process, set the variables there, and exit the process without propagating the variables back to the parent process (i.e. your wrapper script).","Q_Score":1,"Tags":"java,python-3.x,bash,tomcat,environment-variables","A_Id":67811235,"CreationDate":"2021-06-02T18:59:00.000","Title":"JAVA_HOME & JAVA_OPTS set in catalina.sh but 'printenv' in bash\/python doesn't show those environment variables","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I am currently using elastic search python client for search the index of my elastic search.\nLet's say I have 20 million documents, and I am using the pagination with from and size parameters. I have read in the documentation that there is a limit of 10k. But I didn't understand what that limit mean.\nFor example,\n\nDid that limit mean I can only use pagination (i.e. from and size) calls 10000 times?\nlike from=0, size =10, from=10, size =10 etc., 10000 times.\n\nOr Do they mean I can make unlimited pagination calls using the from and size params but there is a size limit of 10k per each pagination call?\n\n\nCan someone clarify this?","AnswerCount":3,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":623,"Q_Id":67813257,"Users Score":3,"Answer":"Pagination limit of 10k means\n\nFor the applied query only the first 10k results can be displayed.\nfrom:0 size:10,001 will given an error \"Result window is too large\"\nfrom:10000, size:10 will given an error \"Result window is too large\"\nIn the above 2 cases we are trying to access 10000+ offset of the document of the current query, hence the exception\n\n\n\nfrom doesn't represent pageNumber, instead it represents starting offset","Q_Score":0,"Tags":"python,elasticsearch","A_Id":67816874,"CreationDate":"2021-06-02T22:25:00.000","Title":"How does pagination works in elastic search?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm having trouble with my database at Heroku:\nI've added some models for my App and whenever I run makemigrations it detects those changes. However when I run migrate it only says no migrations to apply. Please help!","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":251,"Q_Id":67816586,"Users Score":0,"Answer":"I'VE FINALLY FIXED IT!!! This is what I did:\nFirst I did a backup Download by heroku pg:backups:restore capture\nthen heroku pg:backups:restore download\nit made a \"latest.dump\" file\nthen I used heroku pg:reset\nit deleted the recent database of host\nthen I applied my fixes on my models and forms\nnew fields has to have \"defaults=None\" for models with Data you want to preserve (If you won't do this, the merge for this model won't take effect and will be cancelled)\nthen I run heroku run bash\nrun python manage.py makemigrations appname\nthen migrate\nand then used \"pg_restore --verbose --clean --no-acl --no-owner -h yourDBhost -U yourDBuser -d yourDBname latest.dump\" (Your database credentials will be found on your postgresql addon settings) and then type or copy-paste yourDBpassword(from credentials also) to merge the backed up database with the new one with changes\nand know it's done and perfectly working!","Q_Score":0,"Tags":"python,django,postgresql,heroku","A_Id":67880643,"CreationDate":"2021-06-03T06:42:00.000","Title":"Heroku No migrations to apply","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"My project stack is currently as follows:\nA python running flask (using AWS Elastic Beanstalk or AWS Lambda, but it doesn't matter), each route does something for a user and writes a log directly to elasticsearch (using Elastic Cloud).\nI have a problem - when my elasticsearch is slow or down, my flask is affected, moreover, logs can be lost.\nI'm searching for a solution which my flask would write the log to some queue\/pubsub, and there would be SOMETHING that would read the logs from there and write to elasticsearch.\nDo you have suggestion to what would be that SOMETHING?\nI know it could be logstash, but I want something that would be easy to deploy on AWS or Elastic Cloud, would be scalable, would be easy to write to it and easy to write from it to the elasticsearch.\nBest,\nShahar","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":62,"Q_Id":67824745,"Users Score":1,"Answer":"Try some kind of queue (AWS SQS?) in between elastic and your application. Your app writes to the queue, some service\/lambda\/logstash\/... reads the queue and stores the docs in elastic. Kafka for example has already an elastic connector fot that purpose too.","Q_Score":0,"Tags":"python,elasticsearch,queue,elastic-stack,publish-subscribe","A_Id":67833024,"CreationDate":"2021-06-03T15:51:00.000","Title":"Elastic writing queue solution?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I've recently started learning how to use Django and I was wondering whether or not you could create a button in HTML that can directly call a python function without changing the URL. I was told this was possible with JS but I wanted to know if you could do that in Python.\nThanks for your time reading this!","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":102,"Q_Id":67829100,"Users Score":0,"Answer":"Depending on your application you may want to look into Django forms. Otherwise JS (ajax) is the way to go. More details could always help.","Q_Score":0,"Tags":"python,html,django,function,button","A_Id":67830450,"CreationDate":"2021-06-03T21:52:00.000","Title":"Call python function with Django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am really new to both of them. I have created a app with PysimpleGUI that gets the webcam input. So I need to link it to a website that uses Django, so that the webcam input is displayed on a webpage. What I need to know is whether it is possible to connect the two components together and\/or are there any alternatives ?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":114,"Q_Id":67835172,"Users Score":0,"Answer":"What you're asking for is pretty vague. Webcam input is a continuous signal. You could make things work with Django, in your case, can play streaming video from webcam input.\nHowever, I suggest you to use other servers such as angular as it deviates from what Django is intended to do.","Q_Score":0,"Tags":"python-3.x,django","A_Id":67836185,"CreationDate":"2021-06-04T09:51:00.000","Title":"Linking Django with PysimpleGUI","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I get the error ModuleNotFoundError: No module named 'scrapy.contrib' in the scrapy console when trying to run my project.\nI noticed that the python linter is underlining the line:\nfrom scrapy.contrib.spiders import CrawlSpider, Rule\nwhich seems like the error is occuring there.\nHow can I fix this please?","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":426,"Q_Id":67836371,"Users Score":0,"Answer":"pip install scrapy-contrib-bigexporters\n\nYou can try this command to install scrapy library into anaconda prompt.","Q_Score":0,"Tags":"python,scrapy","A_Id":67836443,"CreationDate":"2021-06-04T11:23:00.000","Title":"How can I fix the error \"ModuleNotFoundError: No module named 'scrapy.contrib'\"","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"so I got this python script that removes duplicated files and sort them into folders corresponding to their extension .\nwhat I want to do is when someone uploads a folder to the website than clicks a button the python script is called and starts , it creates a folder to store the sorted files for users to later download those files.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":76,"Q_Id":67854173,"Users Score":1,"Answer":"Since javascript is client side, you'd need to set up some sort of backend that can handle the data sent by the user and then sorts it. moustafa linked a very good explanation, I reccomend reading that and you should be sorted.","Q_Score":0,"Tags":"javascript,python","A_Id":67854236,"CreationDate":"2021-06-05T21:50:00.000","Title":"Using a python script by calling it through javascript","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"i tried to install django, the installation was succeeded but i couldn't create new project. so i uninstalled and try to install again and this message showed up(didn't see it the first time):\n\nWARNING: The script django-admin.exe is installed in 'C:\\Users\\ASUS\\AppData\\Roaming\\Python\\Python39\\Scripts' which is not on PATH. Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.\n\nso i look up online and people said used sys.path.append to fix but when i used it:\nsys.path.append('C:\\Users\\ASUS\\AppData\\Roaming\\Python\\Python39\\Scripts')\nfollowing message appeared\n\nSyntaxError: (unicode error) 'unicodeescape' codec can't decode bytes in position 2-3: truncated \\UXXXXXXXX escape.\nplease help, i'm still new to Python and Django.","AnswerCount":2,"Available Count":1,"Score":0.0996679946,"is_accepted":false,"ViewCount":459,"Q_Id":67867976,"Users Score":1,"Answer":"Don't modify sys.path. It'll lead to pain and heartbreak and hard-to-debug issues. Wherever you made that edit, get rid of it. (The unicodeescape error message is due to you not using a r\"\" raw string, so \\Users is interpreted as the start of an unicode sequence sers which is not a thing.) (In addition, editing sys.path within a Python script won't change your command prompt PATH, so there's no point in this anyway.)\nEither:\n\nas the message said, add C:\\Users\\ASUS\\AppData\\Roaming\\Python\\Python39\\Scripts to your system PATH environment variable so you can use the globally-installed django-admin\ndirectly run C:\\Users\\ASUS\\AppData\\Roaming\\Python\\Python39\\Scripts\\django-admin\nor better yet, learn to create and use virtualenvs to keep your projects' dependencies separate; the virtualenv activation script will add the virtualenv's scripts directory to your path.","Q_Score":0,"Tags":"python,django","A_Id":67868058,"CreationDate":"2021-06-07T08:03:00.000","Title":"python path, can't use Django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to check if any files got uploaded in S3.\nIf there were no file uploads in the last 10 hours, I want to trigger a lambda that can be notified by SNS.\nHow can I trigger lambda when there were no uploaded file in S3 in last certain hour?\nHow could I trigger the lambda when there were no files uploaded in the last hour?","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":56,"Q_Id":67872516,"Users Score":0,"Answer":"First, you need to know when the most recent object was uploaded to S3. That's not a trivial task for a bucket with lots of objects. You could configure S3 to trigger a Lambda function to run every time an object is uploaded and write a 'last-uploaded-time' timestamp to DynamoDB.\nNext, you need to schedule the checking of the 'last-uploaded-time' timestamp. You could do that with a CloudWatch\/EventBridge scheduled event. Run a Lambda function on a schedule, e.g. every hour.","Q_Score":0,"Tags":"python,boto3","A_Id":67872593,"CreationDate":"2021-06-07T13:26:00.000","Title":"How can I trigger lambda when there are no uploaded files in s3?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am building a website for myself and family in Django and React. Every time I ask them to check my process and get their opinions they get a webpage not found error or this site can't be reached. How do I make is so that anyone on my local network can check my page when its running. This is the default in flask, I don't understand why django runs like this? (safety maybe?) I can't find any good information on how to add an allow all to the ALLOWED_HOSTS section in the settings of the main app.\nI also know that you can add IP address, But I'm a noob and I don't follow how to get the ip address of all my families devices without alot of work?? Does anyone have a good solution for this??","AnswerCount":4,"Available Count":1,"Score":0.049958375,"is_accepted":false,"ViewCount":533,"Q_Id":67877796,"Users Score":1,"Answer":"It is very simple\n\njust go to your command line and type ipconfig if its windows and ifconfig if it is linux\nNote your ip address on your local network\nWrite that address in allowed hosts in settings.py\nRun command python manage.py runserver :\nTake any device connect to your local network and in its browser window type servers ip:port number\nFor eg 192.168.25.1:8080","Q_Score":0,"Tags":"python,django,networking,web-development-server","A_Id":67878659,"CreationDate":"2021-06-07T19:42:00.000","Title":"How do I make Django Website public on my local network?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a gRPC server running that responds to external requests. I also have a Django app that takes care of all other web related events. I want to send a signal to the Django app when the gRPC server receives requests. (The gRPC system was already in place. The Django app is an extension)\nSince using Django signals outside the app doesn't work (no context), I want another way to send some kind of notification to the app.\nI am aware that this is a very unlikely scenario.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":132,"Q_Id":67879876,"Users Score":0,"Answer":"I implemented the first method. There could be other ways too.\n\nWorks. If you insist on using Django signals, you can start the gRPC server as a thread in asgi.py. This allows it to gain the Django context and you can then create custom signals and use it in your gRPC server code.\nBy simply using a library like requests in Python, you can create a communication mechanism to reach your Django app.","Q_Score":0,"Tags":"python,django,grpc,django-signals","A_Id":67879877,"CreationDate":"2021-06-07T23:52:00.000","Title":"How can I use Django signals outside the Django application?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I've been following tutorials and messing around with Django lately.\nI'm trying to revise what I've learned and There's a question I would like to ask:\nCan someone explain to me why I can't go to my setting.py and add the name of my app in the installed_apps before actually making it? I'm a bit confused about the concept.\nWhy is the other way around allowed in the terminal flawlessly and not in this way?\nThanks in advance!","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":59,"Q_Id":67886290,"Users Score":0,"Answer":"when you run python manage.py runserver django tries to load all the installed apps mentioned in the list.\nSo the app has to be created before adding it to the installed apps, so that django will find the app and load it.","Q_Score":0,"Tags":"python,django","A_Id":67886310,"CreationDate":"2021-06-08T11:48:00.000","Title":"Why can't I add my app in the setting.py before making it? (Django)","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a flask app in which it has a button to download an HTML report. The download button when hit creates an xlsx file. It worked fine until that app was running on my local server because the python code found my Downloads directory no matter what os it is using python's os module.\nNow the app is deployed on a remote server, in this case, how do you let the system know the client's download directory path where this xlsx file can then be created? Or any other pointers for a better solution if I'm missing something?","AnswerCount":2,"Available Count":1,"Score":0.0996679946,"is_accepted":false,"ViewCount":344,"Q_Id":67894605,"Users Score":1,"Answer":"If i understand correctly - you want to specify a directory to which the file should be downloaded on users computer when he\/she hits download button.\nThis is not possible, and is handled fully by the browser.\nBrowser processes the request\/stream of special type and then creates the output file in the  location specified by the user in browser settings. The os library which you mentioned  relates to your server machine not client, so any os opertaions that you provide in  your code will be executed on your server (like creating a file). So that's why it worked on your local machine - which was server and client at once.\nWhy it's dissalowed?\nImagine a \"virus file\" being uploaded to your C:\\Windows\\System32. Web applications could be granted control over your machine with a simple button download. The huge security issue doesnt allow for client's machine access from web application","Q_Score":0,"Tags":"python,django,flask,operating-system","A_Id":67895357,"CreationDate":"2021-06-08T21:09:00.000","Title":"Downloading a file in downloads directory - flask, python","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to do stock price prediction with time series dataset using h2o automl. If I want to predict next 3 days closing price using previous 5 days  history, can I set this kind of window size in h2o automl?","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":39,"Q_Id":67913372,"Users Score":1,"Answer":"Unfortunately, H2O AutoML (at least until now) does not implement time series forecasting algorithms (like ARIMA, Holt-Winters).","Q_Score":1,"Tags":"python,time-series,prediction,stock,h2o.ai","A_Id":68439588,"CreationDate":"2021-06-10T01:08:00.000","Title":"Can we set window size in h2o automl for prediction of time series dataset?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have 2 buckets on the S3 service. I have a lambda function \"create-thumbnail\" that triggered when an object is created into an original bucket, if it is an image, then resize it and upload it into the resized bucket.\nEverything is working fine, but the function doesn't trigger when I upload files more than 4MB on the original bucket.\nFunction configurations are as follow,\n\nTimeout Limit: 2mins\nMemory 10240\nTrigger Event type: ObjectCreated (that covers create, put, post, copy and multipart upload complete)","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":368,"Q_Id":67917878,"Users Score":0,"Answer":"Instead of using the lambda function, I have used some packages on the server and resize the file accordingly and then upload those files on the S3 bucket.\nI know this is not a solution to this question, but that's the only solution I found\nThanks to everyone who took their time to investigate this.","Q_Score":2,"Tags":"python-3.x,amazon-web-services,amazon-s3,aws-lambda","A_Id":67985482,"CreationDate":"2021-06-10T08:53:00.000","Title":"AWS S3 lambda function doesn't trigger when upload large file","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am working on a blog in django.So is there any Plugin for Pycharm or Intellij idea for django like VS code has?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":106,"Q_Id":67948303,"Users Score":3,"Answer":"I probably think it is a pro feature.\nIf you are a student, then use your .edu mail account to get PyCharm Professional for free.","Q_Score":0,"Tags":"python,django,web","A_Id":67948330,"CreationDate":"2021-06-12T11:16:00.000","Title":"Is there a Django plugin for Pycharm\/Intellij?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a select tag, and what my logic is that after the user selects an option, we would send that response and search through the db to find similar records. The problem is how to access that data.\nAfter the user has selected an option, I would take them to other page which is just a GET request page. So how to access the select tag data(which is a POST request data) on a GET request page.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":16,"Q_Id":67951522,"Users Score":0,"Answer":"You can send selected data to server with POST and save data in SESSION\nand Redirected to Next Page","Q_Score":0,"Tags":"python,html,django,django-models","A_Id":67951583,"CreationDate":"2021-06-12T17:49:00.000","Title":"Problem while transferring data between POST request and GET in django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I know that we can implement auto logout with  SESSION_COOKIE_AGE variable, but this method apply to all users.\nMy question is:\nWhat is the best practice for implement auto logout system for specific users such as admin's or super admin's?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":56,"Q_Id":67955391,"Users Score":0,"Answer":"You can check if the user is admin\/super admin . If so, simply set  SESSION_COOKIE_AGE only for that user","Q_Score":0,"Tags":"python,django,django-middleware,django-sessions","A_Id":67956722,"CreationDate":"2021-06-13T06:10:00.000","Title":"Auto logout specific users in Django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm working on price drop notification application and I'm thinking of using Scrapy for that but, I am not sure how to use it for that, do i need to check the product price regularly after specific interval or is there any other way of doing that.","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":77,"Q_Id":67957259,"Users Score":1,"Answer":"Scrapy is a good way of scraping the data, but then you still need to figure out how to store the old value, and repeatedly run the scraper to check against it, and send a notification.\nFor simpler sites, without much page navigation, only using requests and BeautifulSoup is usually easier, I'd only add Scrapy into that mix to handle crawling through multi-page navigation.\n\nZyte (made by creators of Scrapy, formerly ScrapingHub) have a PaaS offering for doing automatic hourly scrapes, and within that you can call external services for notifications.","Q_Score":0,"Tags":"python,web-scraping,beautifulsoup,scrapy,scrapy-splash","A_Id":68021234,"CreationDate":"2021-06-13T10:33:00.000","Title":"How to use Scrapy for price update","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to serve a flask based web page on my already running PHP website. My web directory looks like below.\nindex.php  (So can be seen in mysite.com )\ninside contact folder index.php (can be seen in mysite.com\/contact\/ )\ninside about folder index.php (can be seen in mysite.com\/about\/ )\ninside \"mypost\" folder index.php (can be seen in mysite.com\/mypost\/ )\ninside \"flaskbasedapp\" folder I wanna use python & flask based web app\nSo that I can serve in (mysite.com\/flaskbasedapp)\nCan anyone help me what should I do without affecting my php based webpages","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":27,"Q_Id":67979730,"Users Score":0,"Answer":"You can run your flask app parallelly and use its endpoint link on your current page or you can create an iframe having the link of your flask route which is serving the HTML page.\nLet me know if this works otherwise we'll figure this out.","Q_Score":0,"Tags":"python,ubuntu,flask","A_Id":67981225,"CreationDate":"2021-06-15T03:44:00.000","Title":"How to Run Flask Based Web Page on Ubuntu Server Which Already Serving PHP Website","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have old django project and new django project. I created dump file from database of old django. And also I made changes in tables and created new tables.\nNow I want to load that dump file to my new django app. I am facing errors when I firstly migrate then restore data or  firstly restore then migrate..\nWhen I  do migration first, it says  tables already exist.\nWhen I do restore first , it says django.db.utils.ProgrammingError: relation \"django_content_type\" already exists\nI use migrate --fake error goes but new tables are not created in database.\nI spent 3-4 days but could not succeed.\nPlease, help me if you can.\nPS: my database is postgresql","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":668,"Q_Id":67980803,"Users Score":0,"Answer":"This is not straightforward and will need some manual interventions and it depends on what do you want to do in the future\n\nIf the tables that already exist in the database have a stable design and won't be changed or you can do the changes manually using SQL statements then set managed = False to the models' meta, this will make Django skip making migrations for those models\n\nIf you want to keep the power of migration in the new project for all models then this will more complex\n\nDelete all your migrations\nYou need to make your models equivalent to your database, you can set managed=False for  new models like Users\nRun python manage.py makemigrations, this will create the structure of the initial database.\nFake running the migrations python manage.py migrate --fake\nDump the records of django_migrations table\nCreate a new empty migration (with --empty) and add the SQL statements of the django_migrations table to it using migrations.RunSQL()\nnow fake again so you skip that new migration.\nNow you are ready to use migrations as usual.\n\n\n\nWhen installing new database, you will just need to run python manage.py migrate","Q_Score":1,"Tags":"python-3.x,django,postgresql,migration,django-3.0","A_Id":67981473,"CreationDate":"2021-06-15T06:01:00.000","Title":"How to transfer data from old database to new modified database in django?","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have good results running particle tracking with modpath7 on a modflow6 model using a structured grid.\nBut atm I am running a nested model with an outer and an inner modflow6 flow model and I can only seem to run modpath on either my \"childGWF\" or my \"parentGWF\" and not the exchangemodel.\nSince the exchangemodel contains two different grids I dont really see how I would define the particles either.\nIs there a solution or example doing this somewhere? I  have a situation where the particle would go from parent throught child model and end in the parent model and one where it would start in the parent model and the sink is in the child model.\nI have so far \"solved\" it by using a simpler model with one grid for the particle tracking.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":51,"Q_Id":67993569,"Users Score":0,"Answer":"I am having a similar issue myself. I do not think there is a good solution. Here is what I am doing:\n\nSpecify \"PRINT_FLOWS\" in the exchange file(s)\nConvert the exchange flows printed in the mfsim.lst to wells and rerun each model separately with the new \"exchange wells\" to match the nested model head\/flow distributions\nStart MP7 in the appropriate model\nUse the MP7 endpoints as you your start points in the other model(s)","Q_Score":2,"Tags":"python,flopy","A_Id":69382672,"CreationDate":"2021-06-15T21:12:00.000","Title":"Is it possible to do Modpath7 particle tracking between a child and parent mf6 model using the exchange function with Flopy","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Python developers usually add README.md files to folders containing packages. They also want those files to be added to HTML documents generated by Sphinx (3.2.1 in my case) and the sphinx_autoapi extension (1.8.1 in my case). Can you please share your thoughts on possible solutions?","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":179,"Q_Id":67999637,"Users Score":1,"Answer":"In conf.py, add the myst_parser extension, that renders markdown files to HTML (I used the latest: 0.15.0), and create a function that checks if a needed file (this will be README.md) exists in a folder.\n\n extensions = [\n     'autoapi.extension',\n     'myst_parser',\n     ...\n ]\n\n def local_file(name):\n     return os.path.exists(name.lstrip('\/'))\n\n def _prep_jinja_env(jinja_env):\n     jinja_env.tests['loc_file'] = local_file\n\n autoapi_prepare_jinja_env = _prep_jinja_env\n \n\n\nThe autoapi_prepare_jinja_env variable extends a list of Jinja tests with one more test called 'loc_file'. This will be used in Jinja templates to check if a file named name exists in the current folder.\n\nIn the AutoAPI template, e.g., in module.rst, add the toctree directive that refers to the README page similar to this:\n\n {% if 'loc_file' in obj.jinja_env.tests %}\n    {% set readme = obj.url_root + '\/' + obj.pathname + '\/README.md' %}\n    {% if readme is loc_file %}\n\n .. toctree::\n    :maxdepth: 1\n\n    README\n\n    {% endif %}\n {% endif %}\n \n\n\nThis will add a link to the README title (1st level header) if the README.md file exists in the current folder.\nIn addition to that, you will need a preprocessing (step #0) that collects all README.md files in the source Python package and copies them to the autoapi workspace before the main process (Sphinx + autoapi) starts. The autoapi extension doesn't touch any files in its workspace where it creates *.rst files.\nWhen collecting README.md files, you need to create the same dir structure that the autoapi extension creates and that actually repeats the structure of the source Python package that you document.\nThat's it. It works as expected. I had to dive into the autoapi code to find it out for me.\nHope this helps others.","Q_Score":0,"Tags":"templates,jinja2,markdown,extension-methods,python-sphinx","A_Id":68002149,"CreationDate":"2021-06-16T09:07:00.000","Title":"Sphinx AutoAPI extension enabled with adding README markdown files","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have multiple companies on my odoo server.\nI have customize a module which control products to showing on the order line. I need this to work on one company only not all. how\ncan i do that?","AnswerCount":2,"Available Count":1,"Score":-0.0996679946,"is_accepted":false,"ViewCount":77,"Q_Id":68009091,"Users Score":-1,"Answer":"Separate the companies into databases, so that the modules in each database (now each company) can be different.\nI think there's a better way of doing exactly what you are looking for, but I don't know it. So, you can just wait for more\/better answers if this does not suit your case.","Q_Score":3,"Tags":"python,xml,odoo,odoo-13","A_Id":68011992,"CreationDate":"2021-06-16T19:40:00.000","Title":"odoo 13 customization multiple companies products and vendor","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Is it possible to call a python script to run server-side by Next.js? I am trying to set up a way to call some python packages I have already developed to be run on my website that is built via React.js + Next.js. I'm hoping to integrate some sklearn methods.\nThanks for any suggestions.","AnswerCount":3,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":2362,"Q_Id":68013605,"Users Score":0,"Answer":"hey there you Create REST API for python script and call from next.js server","Q_Score":4,"Tags":"python,reactjs,scikit-learn,next.js","A_Id":68013814,"CreationDate":"2021-06-17T05:47:00.000","Title":"Running python scripts in Next.js","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I've been learning about django testing and would like to have several tests files that I would like to rename and place then in to a folder. How is the proper way to do it?\nIn a single file test.py I used to run my test with the \"python.manage.py tests appname\" command.\nI tried to organize my tests files this way.\napp\/tests\/__init__py\napp\/tests\/test_something.py\napp\/tests\/test_something_else.py\nThe problem is that when I organize them in several files I can't run a single test file. At this point all I can do is run then all with the command \"python manage.py tests app test_something_else.py\",  but this it will also runs test_something.py.\nI've already try the django documentation, but it hasn't help much because I think this example is for a single test.py file.\n(for an example app named animals)\nRun just one test case\n$ .\/manage.py test animals.tests.AnimalTestCase\nRun just one test method\n$ .\/manage.py test animals.tests.AnimalTestCase.test_animals_can_speak\nWhat am I doing wrong?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":120,"Q_Id":68017261,"Users Score":0,"Answer":"You still can, modify your command to python manage.py test app.tests.test_something_else to run tests in a single file. You can also run a specific test like python manage.py test app.tests.test_something_else.TestCaseClassName.test_the_test. The problem with your last command is that you are trying to access the class before the module that contains the class test case.","Q_Score":1,"Tags":"python,django,testing","A_Id":68024211,"CreationDate":"2021-06-17T10:11:00.000","Title":"How to organize test files on django 3.x and run single file tests?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am using pyppeteer in my flask app. I am hosting on heroku but when the browser opens it closes back.\nHeroku log:\n2021-06-18T16:45:52.764390+00:00 app[web.1]: raise BrowserError('Browser closed unexpectedly:\\n')\n2021-06-18T16:45:52.764509+00:00 app[web.1]: pyppeteer.errors.BrowserError: Browser closed unexpectedly:\nI did some research and some people said to add a buildpack so i did heroku buildpacks:add heroku\/google-chrome to add the buildpack.\nBut the same thing is still happening.\nThank you","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":87,"Q_Id":68039092,"Users Score":1,"Answer":"I changed the launch statement to this browser = await launch(handleSIGINT=False, handleSIGTERM=False, handleSIGHUP=False, options={'args': ['--no-sandbox']}) and it works :)","Q_Score":1,"Tags":"python,google-chrome,flask,heroku,chromium","A_Id":68039897,"CreationDate":"2021-06-18T17:11:00.000","Title":"Running chrome driver with python flask on heroku (pyppeteer)","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a Python script, part of a test system that calls many third party tools\/processes on multiple [Windows] machines, and hence has been designed to clean up comprehensively\/carefully when aborted with CTRL-C; the clean-up can take many seconds, depending on what's going on.  This clean-up process works fine from a [Windows] command prompt.\nI run that Python script from [a scripted pipeline] Jenkinsfile, using return_value = bat(\"python my_script.py params\", returnStatus: true), which also works fine.\nHowever I need to be able to perform the abort\/clean-up during a Jenkins [v2.263.4] run, i.e. when someone presses the little red X, and that bit I can't fathom.  I understand that Jenkins sends SIGTERM when the abort button is pressed so I am trapping that in my_script.py:\nSAVED_SIGTERM_HANDLER = signal(SIGTERM, sigterm_handler)\n...and running the processes I would normally call from a KeyboardInterrupt in sigterm_handler() as well, but they aren't being called.  I understand that the IO stream to the Jenkins console stops the moment the abort button is pressed; I can see that the clean-up functions aren't being called by looking at the behaviour of my script(s) from the \"other side\": it appears as though my_script.py is simply stopping dead, all connections from it drop the moment the abort button is pressed, there is no clean-up.\nCan anyone suggest a way of making the abort button in Jenkins give my bat()ed Python script time to clean-up?  Or am I just doing something wrong?  Or is there some other approach to this within Jenkins that I'm missing?","AnswerCount":2,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":191,"Q_Id":68051496,"Users Score":0,"Answer":"After much figuring out, and kudos to our tools people who found the critical \"cookie\" implementation detail in Jenkins, the workaround to take control of the abort process [on Windows] is as follows:\n\nhave Jenkins call a wrapper, let's call it (a), and open a socket or a named-pipe (socket would work on both Linux and Windows),\n(a) then launches (b), via \"start\" so that (b) runs as a separate process but, CRITICALLY, the environment that (a) passes to (b) MUST have JENKINS_SERVER_COOKIE=\"ignore\" added to it; Jenkins uses this flag to find the processes it has launched in order to kill them, so you must set this \"cookie\" to \"ignore\" to stop Jenkins killing (b),\n(b) connects back to (a) via the socket or pipe,\n(a) remains running for as long as (b) is connected to the socket or pipe but also lets itself be killed by CTRL-C\/SIGTERM,\n(b) then launches the thing you actually want to run,\nwhen (a) is terminated by a Jenkins abort (b) notices (because the socket or pipe will close) and performs a controlled shut-down of the thing you wanted to run before (b) exits,\nseparately, make a thing, let's call it (c), which checks whether the socket\/named-pipe is present: if it is then (b) hasn't terminated yet,\nin Jenkinsfile, wrap the calling of (a) in a try()\/catch()\/finally() and call (c) from the finally(), hence ensuring that the Jenkins pipeline only finishes when (b) has terminated (you might want to add a guard timer for safety).\n\nQuite a thing, and all for the lack of what would be a relatively simple API in Jenkins.","Q_Score":0,"Tags":"python,shell,jenkins-pipeline,jenkins-groovy,sigterm","A_Id":68213142,"CreationDate":"2021-06-19T23:29:00.000","Title":"Jenkinsfile and allowing an aborted `bat()` command time to clean up","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"In my project I conduct one tournament on one date..so users are like to register the tournament..so I store users register info to my database.. Then the another Date I am conducting another tournament but this time I want to store the user info in the same model without erasing the old tournament data's in database.\nBecause I don't want to create the  new Model for every tournament\nIs there any possible ways to do that?\nany one help me\nthanks advance","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":30,"Q_Id":68054105,"Users Score":0,"Answer":"Then register Users to a User Model and Link the tournaments to the users using ManyToMany Relationship.","Q_Score":0,"Tags":"python,html,django,database,model","A_Id":68054147,"CreationDate":"2021-06-20T08:39:00.000","Title":"django model object reuse without erasing data's","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am making a full stack website using react and django. I came across various ways to integrate them both. Having them both as two separate projects and interacting using API, or putting react in the django folder and calling the backend. Which method would be better and much easier? And can you also mention the pros and cons of each method.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":684,"Q_Id":68060498,"Users Score":0,"Answer":"Well, it's actually quite easy, you just have to wrap your head around which part of your project handles which concern.\nThe \"project management\" part of the question\nHaving them in the same repo\nThis is a good idea for deployment, as you won't have problems of synchronization between the 2 code-bases, however, with increasing number of developers it can potentially lead to management problems, as you're have branches based on both backend and frontend things.\nSo to summarize:\n\nEasier to deploy, since it's a single code base\nCould lead to potential problematic management with scaling the development team\nMakes task that are \"full-stack\" easier to manage, as you have it in a single code-base\nNot so easy to split if you're aiming to scale separate \"frontend\" and \"backend\" teams\n\nHaving them in different repos\nIn contrast, this makes it harder to deploy, but easier to separate the tasks. You have 2 separate projects to maintain, an \"API\" and a \"front-end\". Depending on the way you set this up, you can even serve your front-end project using a CDN, and this opens doors to some modern stacks, like serverless, or you can deploy on Vercel, which has a free plan. All-in-all this is usually a safer option for larger teams.\nSo to summarize:\n\nA bit harder to deploy, manage staging\nEasier task sub-splitting between the teams\n\nThe \"engineering\" part of the question\nIn regards to the engineering part, React has to be \"transpiled\", which means that the browsers don't know how to \"interpret\" it. That means you'll have to pick one of various bundlers, but I can suggest a few popular ones:\n\nWebpack custom made config\nCreate React App (comes with webpack)\nParcel (0 config)\nSnowpack ( I've heard great things about this one, since it's node_modules \"free\"\n\nOnce you have this, you'll have a way to get \"production\" ready compiled javascript\/css assets which you need to serve to your user. Depending on what you went with on the \"project management\" side of things, you can either serve the assets with one-click solutions, or a CDN, or in fact, merge your front-end project with the backend, and build your assets, and serve them with Django itself.\nThe choice depends on what you want to achieve, but to summarize:\n\nServing with django - You'll only have a single server to handle everything, but that means if you plan your site to be globally available, you'll have think about the infrastructure\nServing with one-click solutions or CDNs, and a separate API - Pick this if you plan to have a fast loading site everywhere in the world, makes it a bit easier to scale\n\nAll-in-all this is kinda a complex topic, but if you're just making a startup or a small project for yourself to play with, I suggest you go with simply serving everything with Django, and keeping everything in a single codebase!","Q_Score":1,"Tags":"javascript,python,reactjs,django,django-rest-framework","A_Id":68060562,"CreationDate":"2021-06-20T22:25:00.000","Title":"What is the best way to integrate a react and django application?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to edit the aged payable xlsx report in Accounting->Report->Aged payable odoo14. However, I am not getting the report template in the odoo sh staging branch editor console. Where can I find the model and the template in the file system?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":138,"Q_Id":68066061,"Users Score":1,"Answer":"These type of reports are one of the technical implementations in Odoo. These reports are implemented via sql queries based in functions.\nYou can find their implementation in enterprise > account_reports > models.\nIn models folder, multiple files have respective report implementations like partner ledger, aged receivable and payable.","Q_Score":0,"Tags":"python,odoo-14","A_Id":68073824,"CreationDate":"2021-06-21T10:12:00.000","Title":"What is the file path of account.aged.payable model and how to edit aged payable report?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I assume the entire thing \"Sending data to a webhook when a row is updated in XYZ table\" wouldn't be possible via just MySQL query. However, I am trying to figure out a way to automate the process. Can anyone share some example ways this can be done?\nHere's what I intend to automate:\n\nWhenever any row is updated in table XYZ\nThe script should send out data from table ABC, DEF (tables that are connected to the earilier XYZ table) to a webhook URL.\n\nThe biggest issue I have is that this MySQL database is locally stored so I have to run the script locally, otherwise, I'd used Zapier for this.\nJust need some light on what programs or scripts I should be using.\nThanks","AnswerCount":2,"Available Count":1,"Score":0.0996679946,"is_accepted":false,"ViewCount":775,"Q_Id":68066609,"Users Score":1,"Answer":"You are correct that you cannot do this with pure MySQL: unless you add a somewhat dodgy extension to your MySQL server it has no way to originate any operation.\nYou could create a trigger on UPDATE (and perhaps another on INSERT) on that XYZ table.  The trigger would INSERT a row into a new table called, maybe webhook_queue.\nA separate webhook program would, running every few seconds, SELECT, then DELETE all rows from that webhook_queue table, then send each webhook.  There's obviously a latency problem with this approach: webhooks won't be sent until the webhook program wakes up and does its work.\nIf that won't work for you, you probably have to modify your application code to invoke the webhook as it UPDATEs each row.","Q_Score":1,"Tags":"python,mysql,database,windows,automation","A_Id":68067013,"CreationDate":"2021-06-21T10:50:00.000","Title":"MySQL function\/script to send data to a webhook when table XYZ is updated","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a flask app which works on local ip and i wonder if i can make a mobile app without writing the whole app in another language.I just wanna access the website on my phone with an application.Is there a way to do that?\nThanks.","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":47,"Q_Id":68066999,"Users Score":1,"Answer":"Hello and welcome to the forum,\nIf I understand correctly, your application allows access to a website, which has a local IP address as URL.\nYou then want to develop an application to access it.\nIf what I just said is correct, then you don't need to develop an application at all. In fact, all you have to do is type in your phone's browser (in the search bar at the top) :\nhttp:\/\/ton-ip-local:ton-port-local.\nHopefully this helps :)","Q_Score":1,"Tags":"python,android,ios,mobile","A_Id":68067363,"CreationDate":"2021-06-21T11:19:00.000","Title":"Embedding a web application in a mobile app?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I choose heroku for use my simple python script that gets telegram messages and parses them. So when i start the script on heroku it asked for telegram number and confirmation code, but i cant to enter them because i started it by command: heroku ps:scale bot=1 and have no access to heroku terminal. Is there a solution to this problem?","AnswerCount":3,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":233,"Q_Id":68081378,"Users Score":0,"Answer":"I think you need to pass your session string in telethon","Q_Score":0,"Tags":"python,heroku,telegram-bot,telethon,telegram-api","A_Id":68084903,"CreationDate":"2021-06-22T09:53:00.000","Title":"Need to enter telegram code after starting python bot","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I choose heroku for use my simple python script that gets telegram messages and parses them. So when i start the script on heroku it asked for telegram number and confirmation code, but i cant to enter them because i started it by command: heroku ps:scale bot=1 and have no access to heroku terminal. Is there a solution to this problem?","AnswerCount":3,"Available Count":2,"Score":1.2,"is_accepted":true,"ViewCount":233,"Q_Id":68081378,"Users Score":1,"Answer":"You don't need to enter code everytime, because once you logged in, it will create a session file. So use that session file.","Q_Score":0,"Tags":"python,heroku,telegram-bot,telethon,telegram-api","A_Id":68081468,"CreationDate":"2021-06-22T09:53:00.000","Title":"Need to enter telegram code after starting python bot","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I've cobbled together a small blog application in Django using Haystack with Whoosh backend for search. It runs nicely in development server (on the laptop) but search fails when site runs in nginx on a server (rpi).\nI can access search page but any search results in Server Error (500), no additional info available from either nginx or django logs. I had RealtimeSignalProcessor on but turned it off - no change. Any pointer on how to attempt to debug this would be great.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":80,"Q_Id":68083032,"Users Score":0,"Answer":"Thanks for pointing the obvious. With DEBUG=True i get: \"The path to your Whoosh index '\/path\/to\/my\/mysite\/whoosh_index' is not writable for the current user\/group.\" which is then easily remedied by changing either file permissions or ownership of the folder to allow user, in my case nginx, write access.","Q_Score":1,"Tags":"python,django,nginx,django-haystack,whoosh","A_Id":68088062,"CreationDate":"2021-06-22T11:50:00.000","Title":"nginx + django + haystack = Server Error (500)","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I keep getting the same error when running my script using the package Salabim:\nAttributeError: 'NoneType' object has no attribute 'GL_LIGHT_MODEL_AMBIENT'\nCan someone help me with this problem?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":22,"Q_Id":68087835,"Users Score":0,"Answer":"This was a bug in version 21.1.1. Please reinstall salabim with pip.","Q_Score":0,"Tags":"python","A_Id":68436578,"CreationDate":"2021-06-22T16:57:00.000","Title":"I keep getting the same error when running python script in Spyder; AttributeError 'GL_LIGHT_MODEL_AMBIENT'","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Okay I just finished a YouTube course on Django tutorials and i more or less understand Django to an extent. Now the issue is Django rest framework. Google says its used to create APIs but i just dont get it. if the Django framework can be used to create web applications then what can Django rest framework be used for in terms of web application development. By this question, i mean that is Django framework all you need to create a web app or do you need to add it to the rest framework?. What is the connection between a web app and an API?. Does a web app need an API to function?. I'll appreciate a simple explanation of the difference between the two and and how they connect to each other. Thanks.","AnswerCount":5,"Available Count":3,"Score":0.0,"is_accepted":false,"ViewCount":2459,"Q_Id":68088101,"Users Score":0,"Answer":"Why you need django REST framework after learning django?\nI think this is the perfect answer for you; Traditional Django does the work, however django REST framework focuses on building APIs, which gives it a lot of  additional advantages. If you consider a traditional django app, it is very difficult(almost impossible) to separate the back-end from the front-end. APIs help in separating the front-end from the back-end. Considering the rapid rate of change in JavaScript front-end libraries (React, Vue, Angular etc). This approach of separating the back-end from the frontend is arguably much more future-proof because a back-end API can be consumed by any JavaScript front-end. When the current front-end frameworks are eventually replaced by even newer ones in the years to come, the back-end API can remain the same. No major rewrite is required.\nSecond, an API can support multiple front-ends written in different languages and frameworks for different purposes. It can be consumed by a mobile front-end written in Java or (flutter+dart), a web front-end written in any JavaScript framework, and even iOS app written in Swift. This is not possible in traditional monolithic django approach, however this is very possible and easy in django REST framework.","Q_Score":1,"Tags":"python,django,api,rest,django-rest-framework","A_Id":71890409,"CreationDate":"2021-06-22T17:17:00.000","Title":"difference between django and django rest framework","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Okay I just finished a YouTube course on Django tutorials and i more or less understand Django to an extent. Now the issue is Django rest framework. Google says its used to create APIs but i just dont get it. if the Django framework can be used to create web applications then what can Django rest framework be used for in terms of web application development. By this question, i mean that is Django framework all you need to create a web app or do you need to add it to the rest framework?. What is the connection between a web app and an API?. Does a web app need an API to function?. I'll appreciate a simple explanation of the difference between the two and and how they connect to each other. Thanks.","AnswerCount":5,"Available Count":3,"Score":-0.0798297691,"is_accepted":false,"ViewCount":2459,"Q_Id":68088101,"Users Score":-2,"Answer":"Django creates websites containing webpages while Django REST Framework to build web API that allow transfer of data over the world wide web .","Q_Score":1,"Tags":"python,django,api,rest,django-rest-framework","A_Id":68088477,"CreationDate":"2021-06-22T17:17:00.000","Title":"difference between django and django rest framework","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Okay I just finished a YouTube course on Django tutorials and i more or less understand Django to an extent. Now the issue is Django rest framework. Google says its used to create APIs but i just dont get it. if the Django framework can be used to create web applications then what can Django rest framework be used for in terms of web application development. By this question, i mean that is Django framework all you need to create a web app or do you need to add it to the rest framework?. What is the connection between a web app and an API?. Does a web app need an API to function?. I'll appreciate a simple explanation of the difference between the two and and how they connect to each other. Thanks.","AnswerCount":5,"Available Count":3,"Score":0.0,"is_accepted":false,"ViewCount":2459,"Q_Id":68088101,"Users Score":0,"Answer":"Django is a web server built over python while django-rest is a package for django servers. If you only use django without using django rest framework, most probably you will be creating sites by 'server rendering' but if you are using django-rest in your django application you will be creating apis that will be later consumed by other frontends like react or vue.","Q_Score":1,"Tags":"python,django,api,rest,django-rest-framework","A_Id":68148844,"CreationDate":"2021-06-22T17:17:00.000","Title":"difference between django and django rest framework","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"In odoo I can work with either lots or unique serial number. But I want to unique serial number to each and every items in a single lot. Then I will transfer that lot. So, is it possible to add serial number to the lot item?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":48,"Q_Id":68110760,"Users Score":0,"Answer":"For me, I solved this problem a while ago on odoo-12 using a customized code [ to ensure that the serial number is unique to each lot]","Q_Score":1,"Tags":"python,odoo-14","A_Id":68122988,"CreationDate":"2021-06-24T06:44:00.000","Title":"Is it possible to have serial numbers to the lot items in odoo14?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to download photos \/ images.\nI want to do that by searching a subject and get all the photos which shows under google search (photos tab).\nI tired to use google crawler (GoogleImageCrawler) but it seems that the photos I'm getting are different from the photos which I can see via google search (photos tab).\nHow can I get and download photos (filter photos by subject) directly from google search engine ?","AnswerCount":2,"Available Count":2,"Score":-0.0996679946,"is_accepted":false,"ViewCount":77,"Q_Id":68117034,"Users Score":-1,"Answer":"Also, try \"pip install download\"\nfrom download import download\npath = download(url, file_path)","Q_Score":2,"Tags":"python,web-crawler,google-crawlers,google-image-search","A_Id":68117232,"CreationDate":"2021-06-24T13:47:00.000","Title":"Why google crawler doesn't get google search photos?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to download photos \/ images.\nI want to do that by searching a subject and get all the photos which shows under google search (photos tab).\nI tired to use google crawler (GoogleImageCrawler) but it seems that the photos I'm getting are different from the photos which I can see via google search (photos tab).\nHow can I get and download photos (filter photos by subject) directly from google search engine ?","AnswerCount":2,"Available Count":2,"Score":-0.0996679946,"is_accepted":false,"ViewCount":77,"Q_Id":68117034,"Users Score":-1,"Answer":"Use google_search_py package, install it from Pypi.org and try","Q_Score":2,"Tags":"python,web-crawler,google-crawlers,google-image-search","A_Id":68117187,"CreationDate":"2021-06-24T13:47:00.000","Title":"Why google crawler doesn't get google search photos?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to run python script on google cloud using android studio\n\nex: I have an android application which contain button and google cloud VM instance which has a python script.\nI want when click button, the script is run and output send to storage.\nhow I can do that ?","AnswerCount":1,"Available Count":1,"Score":-0.1973753202,"is_accepted":false,"ViewCount":94,"Q_Id":68124052,"Users Score":-1,"Answer":"I suppose you're running a linux-based distribution as your operating system. I think that you could do that by sending a command to the VM via ssh, and by using pipes in linux you could direct the output to a specific file.\nLet's say you have your python script named script_one.py\nWith this command python3 script_one.py > output.txt you basically run the script and the output of it is stored in the file output.txt in the same directory where the python script is, now of course you could use absolute or relative path to redirect your output to another place.\nDepending on the language you're developing your application in, this can be implemented in different ways.","Q_Score":0,"Tags":"python,android,google-cloud-platform,google-compute-engine","A_Id":68124117,"CreationDate":"2021-06-25T00:22:00.000","Title":"How to run python script on google cloud using android studio?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I know that an app server can be configured to:\n\nLaunch new process per request\n\nLaunch new thread per request\n\n\nThis question is regarding using python multi-processing (or multi-threading) code inside a flask endpoint. For example say I want to use python multiprocessing for CPU intensive work (or multithreading for IO intensive work).\nI have a flask endpoint that takes 40 seconds to run the code (CPU intensive work). I have used python multiprocessing (pool) inside the endpoint code [so that certain CPU intensive things can be done in parallel via multiple processes] and now the endpoints takes 4 seconds to run.\nIs it OK to use python multiprocessing (or multithreading) code inside an endpoint when either of the above 2 app server configurations (that is  -when the app server is configured to serve each request in a new thread or each new request in a new process). The thread per request is default setting of the flask development server. Where as for gunicorn I can choose either. Is there anything I need to consider when using multiprocessing (or multithreading) inside a flask endpoint so that I am not messing up with the flask process\/thread.\nI know that a better solution is to use a task queue. But this question is specifically regarding using multithreading\/multiprocessing.","AnswerCount":3,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":1960,"Q_Id":68126489,"Users Score":0,"Answer":"I think it will work as expected, and any slowdown due to subprocesses management is compensated tenfold by the speedup you got.","Q_Score":3,"Tags":"python,flask,multiprocessing","A_Id":68183488,"CreationDate":"2021-06-25T06:35:00.000","Title":"What is the recommendation about using multiprocessing (or multithreading) inside a flask endpoint?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"Assuming there are 2 tables in one page. table 1 shows the list of all items and table 2 shows the list of all deleted items. whenever i click delete button the corresponding row from table 1 is moved to table 2.\nI am not sure how to do all these in one page!","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":53,"Q_Id":68140186,"Users Score":0,"Answer":"Once, you click delete, you send a request to the server, once you get the response, you run an animation where you remove row and put on another table, this can be done by giving an id to your tr and then remove id and adding to the top of the 2nd table.","Q_Score":1,"Tags":"python,html,django,django-models","A_Id":68140791,"CreationDate":"2021-06-26T07:30:00.000","Title":"How to update 2 tables in one page in django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to deploy a website that uses Django on the server side and reactJs Frontend on AWS. I'm estimating traffic of about 40,000 per month. It happens that Amazon has several hosting packages. I like the EC2 instances but I don't know which particular instance will be suitable for me and being cost effective. I want to host for 6 months to get to understand the platform and later extends it if I'm comfortable with their services. The database isn't that robust. I'll also like to add updates at least two times a week.\nHonestly, I haven't used AWS before and I don't even know if EC2 is the best for my project. Which of the packages will be best for my project?","AnswerCount":2,"Available Count":2,"Score":1.2,"is_accepted":true,"ViewCount":79,"Q_Id":68146240,"Users Score":2,"Answer":"AWS EC2 is an IaaS (Infrastructure as a Service) cloud model, and it's best suited for those who are starting to use cloud computing. We can say that it's similar to on-prem environments, you have almost full control over all aspects of computing like memory, storage, and networking, on the other hand, you need to manage them, and in some cases, you don't want or, you don't need to do. In your case, with the information provided, an EC2 seems to be the best choice, so you can safely try AWS (safely, because you will need to take care of costs, and on IaaS model you have more predictability) while learning about other services. The second step will depend on the specificities of your application like if stateful or stateless if needs to be scalable or not. Hope I have contributed.","Q_Score":0,"Tags":"python,reactjs,django,amazon-web-services,amazon-ec2","A_Id":68146461,"CreationDate":"2021-06-26T21:08:00.000","Title":"How to choose appropriate AWS EC2 instance","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to deploy a website that uses Django on the server side and reactJs Frontend on AWS. I'm estimating traffic of about 40,000 per month. It happens that Amazon has several hosting packages. I like the EC2 instances but I don't know which particular instance will be suitable for me and being cost effective. I want to host for 6 months to get to understand the platform and later extends it if I'm comfortable with their services. The database isn't that robust. I'll also like to add updates at least two times a week.\nHonestly, I haven't used AWS before and I don't even know if EC2 is the best for my project. Which of the packages will be best for my project?","AnswerCount":2,"Available Count":2,"Score":0.2913126125,"is_accepted":false,"ViewCount":79,"Q_Id":68146240,"Users Score":3,"Answer":"Your main choice is Amazon EC2 (highly flexible) vs Amazon Lightsail (similar to a VPS).\nNobody can advise you on sizing your system, since it is totally dependent upon what your application does (video vs compute vs caching, etc) and how your users interact with the app. You should pick an Instance Type, setup a test system that simulates typical usage and then monitor how it runs.\nAlternatively, pick something reasonably big, run it in production and monitor for any issues. If it all looks good, you could downsize the system.","Q_Score":0,"Tags":"python,reactjs,django,amazon-web-services,amazon-ec2","A_Id":68146883,"CreationDate":"2021-06-26T21:08:00.000","Title":"How to choose appropriate AWS EC2 instance","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Basically I am writing a script to reset a django webapp completely. In this script, I want to reset the database, and there is a command to do it from django extensions. Unfortunately, I haven't been able to run it programatically. It works fine when I run it via command line, but it just won't execute when I try programatically.\nI have tried using os.system and subprocess.\nI have also tried using management.call_command('reset_db'), but it keeps saying that there isn't a command called reset_db. I have checked to make sure the django_extensions is in my installed apps, so I have no idea why that isn't working.\nDoes anyone know how I could fix this? Thank you!\nAlso I am using python3, the most recent version of django I believe, and it is a MYSQL server that I am trying to delete.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":98,"Q_Id":68168855,"Users Score":0,"Answer":"I can't know without seeing your way of invocation directly, but my guess is the script's not running in the virtualenv. Here are some debug notes:\n.\/manage.py --help | grep reset_db: Does this output anything?\n.\/manage.py shell_plus\nThen try:\n\nfrom django.core.management import call_command\ncall_command('reset_db', '--help')\n\nAnything then?\nAlso within .\/manage.py shell_plus, try import django_extensions\nOutside of the shell, try this: pip show django, pip django-extensions.\nIf it doesn't show those (e.g. WARNING: Package(s) not found: django-extension) and you think they're already installed, try this:\nwhich python, which pip. Are you using venv, virtualenv, virtualenvwrapper, pipenvorpoetry`?\nTry env | grep VIRT, do you see a VIRTUAL_ENV? If not you may need to make one.\nWhen you run the script, you need to have your environmental variables set so you hook in to your site packages. In poetry we can do poetry run .\/manage.py ourscript or poetry run .\/ourscript.py without needing to be sourced. But we can also easily drop into virtualenv via poetry shell.\nIf you created an environment like virtualenv -ppython3.8 .venv, you can either do:\nsource .venv\/bin\/activate, .\/myscript.py, rr you can try .venv\/bin\/python .\/myscript.py","Q_Score":0,"Tags":"python-3.x,django,django-extensions","A_Id":69920136,"CreationDate":"2021-06-28T19:10:00.000","Title":"Having trouble running the django extensions command reset_db programatically","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a flask server which consists of multiple methods. I am aiming to automate the execution of these methods by using Airflow.\nI am thinking of using the following steps:-\n\nSetting up Airflow by defining multiple DAGS to call the relevant flask methods  in a pipeline.\nDeploying Flask Server.\nDeploying Airflow (using docker-compose).\n\nMainly, I am thinking to seperate the Airflow and flask servers independently. Do you think this is a good plan? Any other suggestions would be highly appreciated.","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":577,"Q_Id":68171820,"Users Score":1,"Answer":"It depends on a couple of things.\n\nCan you run the methods from inside Airflow? For security reasons it is often required to keep some functionality in a different environment\/cluster. Reasons for that could be the required database access that you want to give to the Airflow environment.\nIs this functionality\/methods also invoked from other locations or is it solely for Airflow?\nWhat other functionality does the flask server have that you can't live without?\nAre there python dependency conflicts? Even in that case you could use the VirtualEnvOperator of Airflow.\n\nIf there is no answer here that is completely blocking you from invoking these methods from inside Airflow, I would vote to do them completely inside Airflow. This will reduce coupling and also reduce the maintenance burden for you in the long term. Besides, Airflow will prevent you from needing to worry about a lot of things, like connectivity, exception codes and callbacks for when something went wrong.","Q_Score":1,"Tags":"python,docker,flask,airflow","A_Id":68179600,"CreationDate":"2021-06-29T02:14:00.000","Title":"Automating flask server with Apache. Airflow","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"As a newbie with python, I am thinking of doing a project, where I have a table of e.g shops, with their names, longitude, latitude, and shop manager.\nI want to design a django project where the coordinates (longitude, latitude) will be used to place a pointer on the map to indicate the location on the map, and if hovered, it will show the shop details. I can go as far as if clicked on, the will display the shop page with details, etc.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":78,"Q_Id":68173660,"Users Score":0,"Answer":"DONE :)\nI used the import_export import resource module to bring it to the frontend and the Tablib.export() module to convert it to DataFrame.","Q_Score":0,"Tags":"python,django,folium","A_Id":68210925,"CreationDate":"2021-06-29T06:32:00.000","Title":"How to read coordinate from the DB and map a pointer on the map using django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm working on screen capture on Windows using Python and mss, and I'm wondering if I can capture the screen of another user on the same machine.\nI have two windows users on the machine: one running a kiosk application in a browser on full screen continuously, and an admin user for all other tasks. I can only start my screen capture script from the admin user, but I would need to record the kiosk application.\nI tried the na\u00efve way, by starting capture and switching users, of course it keeps recording the admin user's screen.\nIs there a way to do this, or is it fundamentally impossible due to the separation of users?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":74,"Q_Id":68181920,"Users Score":0,"Answer":"I can't provide a code example, but I could imagine that running the code as either SYSTEM or as a Windows Service would make it \"omnipotent\" so to say. Then you use Python.NET to integrate\/ link everything.","Q_Score":0,"Tags":"python-mss","A_Id":68392033,"CreationDate":"2021-06-29T15:43:00.000","Title":"Capturing screen of another windows user with python-mss","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a simple excel file I am trying to figure out how I can get my app to read the excel file, so I can use the data to display in a template. I have looked into xlrd but does anyone have any suggestions on the best way to do this?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":153,"Q_Id":68183801,"Users Score":2,"Answer":"Using pandas's read_excel is very easy and efficient and will also give you liberty to manipulate the columns(Fields)","Q_Score":1,"Tags":"python,django,python-2.7,django-models","A_Id":68183833,"CreationDate":"2021-06-29T18:17:00.000","Title":"Django read excel (xlsx) file to display in a table","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I've a problem where one API implemented in a django (3.2) web app running with gunicorn (gevent) has to fetch different prices from multiple APIs and store those prices in the database (Postgres 13) before returning to the client.\nI'd like to put the inserts in the same transaction,  so if something unexpected happens, nothing will be inserted.\nI am now going forward by first calling all apis, each one inside a green thread (gevent) and after all of them return, I bulk insert the results.\nBut turns out I got really curious if I it is possible for different threads ( green or not)  to share the same transaction. I saw that psycopg2 can execute in a non blocking way.\nThe issue now is everytime I start thread in django the new thread is inside a new transaction. I will dig into the django db backend source to understand what is happening, but maybe someone can clear this out.\nTldr; is possible to different threads execute queries inside the same transaction?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":209,"Q_Id":68186732,"Users Score":1,"Answer":"You definitely do not want to attempt to share a single transaction\/postgres connection between multiple threads without some locking mechanism to make sure they don't interleave activity on the connection in some nasty way that causes errors.\nInstead, a simpler and safer solution is to start your green threads from the main request thread and then gevent.join([<green thread1>, <green thread2>...]) all of them from that same main request thread. Each green thread would go get the data from the API and just return it as the exit of each thread.\nThen have the main request thread go through each exited green thread object (greenlet) and get the return value for each via Greenlet.get(). Then do the inserts on the main request thread using its normal transaction\/connection.\nUPDATE\nIf you want to get even more sophisticated to achieve better performance, you could use a Pool and have each greenlet put its result on a Queue that's read from the main thread. That way you start saving results to the database as they become available rather than waiting until they all complete.","Q_Score":4,"Tags":"python,django,postgresql,multithreading,gevent","A_Id":68200527,"CreationDate":"2021-06-29T23:26:00.000","Title":"Share django transaction across threads","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"from pytube import YouTube\n\nurl = 'https:\/\/youtu.be\/7hvcJK5-OLI'\nmy_video = YouTube(url)\n\nprint(\"=================== Video Title ====================\")\nprint(my_video.title)                                             # This prints the title of the youtube video\n\nprint(\"=================== Thumbnail Image ====================\")\nprint(my_video.thumbnail_url)                                     # This prints the thumbnail link in terminal\n\nprint(\"=================== Download Video ====================\")\n\nchoise = input(\"Do you want to download mp3 or mp4: \")\n\nif choise.lower() == 'mp4':\n    my_video = my_video.streams.get_highest_resolution()          # We set the resolusion of the video\n\nelif choise.lower() == 'mp3':\n    my_video = my_video.streams.get_audio_only()                  # To get only audio we set this\n\nelse:\n    print(\"Invalid option! \")\n    exit()\n\nmy_video.download()\n\nThis is my code. I am trying to make simple youtube downloader for project but it keep throwing HTTP Error: 404, although even my url is correct","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":396,"Q_Id":68188960,"Users Score":0,"Answer":"You just need to update pytube to latest version 10.8.5\nJust run pip install --upgrade pytube","Q_Score":0,"Tags":"python,pytube","A_Id":68189000,"CreationDate":"2021-06-30T05:36:00.000","Title":"Pytube error: urllib.error.HTTPError: HTTP Error 404: Not Found","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"We are marketing agency that wants all the ads campaign data (Facebook Ads, Google Ads, My Target) to be displayed in the dashboard(Grafana + Prometheus). We were looking for plugins that can extract the data to Prometheus, and then get visualized in Grafana. Did anyone find any plugins\/exporters\/ or any solution that will work with minimum coding?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":76,"Q_Id":68193702,"Users Score":0,"Answer":"There is no such plugin\/exporter. Since this kinds of platforms are correcting the results for like two weeks prior.\nThe best way to visualize this kind of information in Grafana is to use a good persistency layer and store data in a database like Postgres or MySQL.\nSo you need to write your own ETL processes or use third-party services.","Q_Score":0,"Tags":"python,database,export,prometheus,grafana","A_Id":68193797,"CreationDate":"2021-06-30T11:13:00.000","Title":"Export data from advertising platforms (FB Ads, Google Ads, My Target) into Prometheus to visualize in Grafana","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to run my same app.py file on different ports. For example: By creating\napp1.py:5000\napp2.py:5001 and taking their port addresses in an array to divide the load from the server.\nActually, I am doing this because my client side is sending 10 fps to the server. By continuous post requests it gives an error, connection aborted timeout('10060' .\nSo if there any other solution kindly suggest.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":71,"Q_Id":68200857,"Users Score":0,"Answer":"If your code is in production try to use some good real web server options. You can use Nginx\nfor your use case if you arent working on a windows server. You do still have some good options like Gunicorn. Gunicorn is an easy-to-use WSGI server that will let you help to handle your load on the server.","Q_Score":0,"Tags":"python-3.x,flask,flask-restful","A_Id":68204486,"CreationDate":"2021-06-30T19:52:00.000","Title":"How to run same flask app.py file on different ports?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"there.I am moving forward to use google cloud services to store Django media files. But one thing that stops me is about the Google and Amazon free tier. I had read the google cloud docs but I am confuse about many things. For free tiers, New customers also get $300 in free credits to run, test, and deploy workloads. What I want to know is if they are  gonna automatically charge me for using the cloud-storage after 3 months of trial is over because I am gonna put my bank account. This case is same on Aws bucket which allows to store mediafiles for 1 year after then what's gonna happen. Are they auto gonna charge me?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":21,"Q_Id":68214391,"Users Score":0,"Answer":"I have never used google cloud before. For AWS free tier you can use the storage with the limited features they allow to free tier. Regarding charges, you can definitely setup a cloudwatch alert in AWS which will alert you if your usage is beyond the free tier limit or you are about to get charged. So you can set that up and be assured you won't get surprise before you get alerted for the same.\nHope this helps. Good luck with your free tier experience.","Q_Score":0,"Tags":"python,django,amazon-web-services","A_Id":68215549,"CreationDate":"2021-07-01T17:14:00.000","Title":"Queries related to Google cloud storage and Aws bucket for file storage","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I am using a flask server where I would receive data from post request frequently.\nSuppose every second I would get new data and process the data, but I don't want to process the incoming data one by one. Instead, I want to process the data received every 5 seconds (in 5 post request).\nIs there a way that I can do so?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":63,"Q_Id":68218453,"Users Score":0,"Answer":"You can use database - PostgreSQL or Redis for example to store your data from requests. Create a cron job which will execute every 5 seconds, got data from your storage and process it.","Q_Score":0,"Tags":"python,flask,post,parallel-processing,io","A_Id":68227717,"CreationDate":"2021-07-02T00:58:00.000","Title":"Is there a way to append data received in multiple post requests","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a script that we wanted to run in AWS as a Lambda, written in Python. This will run once ever 24 hours. It describes all the ec2 instances in an environment and I'm checking some details for compliance. After that, we want to send all the instances details to an SNS topic that other similar compliance scripts are using, which are sent to a lambda and from there, into sumologic.  I'm currently testing with just one environment, but there is over 1000 instances and so over 1000 messages to be published to SNS, one by one. The lambda times out long before it can send all of these. Once all environments and their instances are checked, it could be close to 6000 messages to publish to SNS.\nI need some advice on how to architect this to work with all environments. I was thinking maybe putting all the records into an S3 bucket from my lambda, then creating another lambda that would read each record from the bucket say, 50 at a time, and push them one by one into the SNS topic. I'm not sure though how that would work either.\nAny ideas appreciated!","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":220,"Q_Id":68226123,"Users Score":0,"Answer":"I think you could you a SQS queue to solve you problem.\nFrom SNS send the message to a SQS queue. Then from the SQS you lambda can poll for messaged ( default is 10 but you can decrees it though cli ).","Q_Score":1,"Tags":"python-3.x,amazon-web-services,amazon-ec2,aws-lambda,amazon-sns","A_Id":68226854,"CreationDate":"2021-07-02T13:33:00.000","Title":"Publishing over 6000 messages to SNS from a lambda","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am in the process of making a web application that essentially takes in some web-stream from the client via their browser, and in real-time, sends it to a python server (Flask probably) that processes the frames in real-time and sends a response to the user. Now the backend has to be capable of handling web-streams from multiple clients simultaneously.\nI am trying to grasp the framework for this entire application. What I have in mind is the following:\n\nThe user accesses the web-cam via their browser (e.g using webcamJS), the frames are sent from the frontend to the back-end through a web-socket. The task here is to establish a seemless handshake between the multiple clients and their processing requests.\n\nThere is a need for concurrency if the processing is to be done in real-time, multiple threads of the same image-processing-algorithm need to be executed. My take is that I make use of the multiple threads for this purpose or is there a better way of doing this? Is this even a feasible approach as the image-processing-algorithm (trained model) takes some time to load up , so it has to be always initialized at the backend and not start from scratch at every request.\n\nThe response from image-processing-algorithm need to get back to the frontend and the process goes on.\n\n\nWhat I really need help is in drawing out the complete framework of this implementation. Any suggestions on the modules\/frameworks to use with some implementations would be greatly appreciated.\nThank you.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":131,"Q_Id":68232418,"Users Score":0,"Answer":"You can use Flask for your web server, Keras to process the videos.\nThe standard library multiprocessing module will also be helpful to treat multiple feeds at once.","Q_Score":1,"Tags":"python,multithreading,sockets,flask,webrtc","A_Id":68292040,"CreationDate":"2021-07-03T00:35:00.000","Title":"Multi-client web-cam access and stream processing from python server in real-time","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm working on a page\/project that would allow our customers to check a webpage to see if their network is ready to plug in a cloud based device. The page should query a specific HTTPS URL, check it returns anything other than HTTP 200, then go to the next URL. At the end of the test, it should give a summary of what isn't reachable.  Ideally, it should be purely HTML based but I'm struggling to find ways to do this. I also need it to check the certificate status of a URL to make sure the network isn't using behind a firewall running SSL inspection. Is this possible just by using HTML?\nI can easily do this in python\/requests and could just send them a script to run on their computer, but the goal of this project is to make this as seamless as possible. We just send them a link and a non IT person could check if the network is ready then report to us what test failed.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":16,"Q_Id":68232721,"Users Score":0,"Answer":"You can't do these things with pure html. you need to use javascript and also you should know that you cant do network layer operations with just application layer technologies. so simple answer is no you can't do it just by using html.","Q_Score":0,"Tags":"python,html,curl,get","A_Id":68235262,"CreationDate":"2021-07-03T02:11:00.000","Title":"HTML based network testing tool","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I need to run some python code on aws platform periodically(probably once a day). Program job is to connect to S3, download some files from bucket, do some calculations, upload results back to S3. This program runs for about 1 hour so I cannot make use of Lambda function as it has a maximum execution time of 900s(15mins).\nI am considering to use EC2 for this task. I am planning to setup python code into a startup and execute it as soon as the EC2 instance is powered on. It also shuts down the instance once the task is complete. The periodic restart of this EC2 will be handled by lambda function.\nThough this a not a best approach, I want to know any alternatives within aws platform(services other than EC2) that can be best of this job.\nSince","AnswerCount":2,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":276,"Q_Id":68234790,"Users Score":2,"Answer":"If you are looking for other solutions other than lambda and EC2 (which depending on the scenario it fits) you could use ECS (Fargate).\nIt's a great choice for microservices or small tasks. You build a Docker image with your code (Python, node, etc...), tag it and then you push the image to AWS ECR. Then you build a cluster for that and use the cloudwatch to schedule the task with Cloudwatch or you can call a task directly either using the CLI or another AWS resource.\n\nYou don't have time limitations like lambda\nYou don\u2019t also have to setup the instance, because your dependencies are managed by Dockerfile\nAnd, if needed, you can take advantage of the EBS volume attached to ECS (20-30GB root) and increase from that, with the possibility of working with EFS for tasks as well.\n\nI could point to other solutions, but they are way too complex for the task that you are planning and the goal is always to use the right service for the job\nHopefully this could help!","Q_Score":1,"Tags":"python,amazon-web-services,amazon-ec2,aws-lambda,job-scheduling","A_Id":68308309,"CreationDate":"2021-07-03T09:08:00.000","Title":"Run python code on AWS service periodically","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I am creating a discord bot and I use a JSON file to store everyone's data , the problem is that when I have to update my game and if I upload the code to Heroku it will rewrite everyone's data there is two ways I can fix this,\nGet the JSON file from Heroku\nor Rewrite the code in Heroku with the new code (best option)\nIf you know how to do either of these commands please let me know down below! :)","AnswerCount":3,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":63,"Q_Id":68235430,"Users Score":0,"Answer":"Either way is to use heroku postgres database which will help you to store data...","Q_Score":0,"Tags":"python,json,heroku,heroku-cli,heroku-api","A_Id":68235779,"CreationDate":"2021-07-03T10:37:00.000","Title":"How do I replace or get a file in Heroku","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am creating a discord bot and I use a JSON file to store everyone's data , the problem is that when I have to update my game and if I upload the code to Heroku it will rewrite everyone's data there is two ways I can fix this,\nGet the JSON file from Heroku\nor Rewrite the code in Heroku with the new code (best option)\nIf you know how to do either of these commands please let me know down below! :)","AnswerCount":3,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":63,"Q_Id":68235430,"Users Score":0,"Answer":"I am using repl.it to host my bot now and it works so far, freecodecamp made a great video explaining how to host a discord bot on youtube","Q_Score":0,"Tags":"python,json,heroku,heroku-cli,heroku-api","A_Id":68236640,"CreationDate":"2021-07-03T10:37:00.000","Title":"How do I replace or get a file in Heroku","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am new to game development. I am trying to start high and make a 3D RPG. I know the road is not gonna be easy. That is why i decided to use Ursina and python to make my game.\nHowever i wanna add a cutscene showing a Backstory. I have the video in mp4 format but i cannot seem to know how to play it inside the game with Ursina.\nAnyhelp will be much appreciated.\n(Side question : do you think Ursina is good for a beginner in 3D gaming? If i want to publish my game on my website, isn't it better for me to learn javascript ? I read about Unity but it is too big to download for a little side project)","AnswerCount":3,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":356,"Q_Id":68248623,"Users Score":0,"Answer":"From Entity Basics in the documentation:\ne4 = Entity(model='cube', texture='movie_name.mp4') # set video texture","Q_Score":0,"Tags":"python,python-3.x,video,game-engine,ursina","A_Id":69452775,"CreationDate":"2021-07-04T20:35:00.000","Title":"How to play MP4 with Ursina in Python","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am new to game development. I am trying to start high and make a 3D RPG. I know the road is not gonna be easy. That is why i decided to use Ursina and python to make my game.\nHowever i wanna add a cutscene showing a Backstory. I have the video in mp4 format but i cannot seem to know how to play it inside the game with Ursina.\nAnyhelp will be much appreciated.\n(Side question : do you think Ursina is good for a beginner in 3D gaming? If i want to publish my game on my website, isn't it better for me to learn javascript ? I read about Unity but it is too big to download for a little side project)","AnswerCount":3,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":356,"Q_Id":68248623,"Users Score":0,"Answer":"Well, I don't think there is a way to do that. the closest thing you can do to that is having a folder filled with all the frames of your video in .png or .jpg files, then adding a quad to the world and changing the texture of it to the next frame every fraction of a second depending on the framerate. this, however would make your computer l a g. trust me, I've tried it. it would probably be better to have a separate window with some sort of module that plays .mp4 files for playing the file.\nIn other words, there is no feasible way to do that.","Q_Score":0,"Tags":"python,python-3.x,video,game-engine,ursina","A_Id":69451218,"CreationDate":"2021-07-04T20:35:00.000","Title":"How to play MP4 with Ursina in Python","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I use braces for my project. But when I import it to my views.py, it shows yellow error that there is no such a library. But it exists on libraries of the project. What should I do?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":37,"Q_Id":68251196,"Users Score":0,"Answer":"Maybe your editor is not using python version of your virtual environment. You don't have to worry about this.","Q_Score":0,"Tags":"python,django,import,braces","A_Id":68251652,"CreationDate":"2021-07-05T05:44:00.000","Title":"Can't import braces library","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I need to fetch swipe up count which show in the insights of Instagram.As Facebook is not providing swipe up count through their graph API so how can I get that data.\nScraping won't work as I already did and I want to fetch those data in python or javascript\nThanks in advance for help","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":116,"Q_Id":68270054,"Users Score":2,"Answer":"for now facebook is not providing this data in graph-api and it is only provided in influences in insights so for now its not possible for now to fetch but you can get by web scraping\nFacebook can provide this data in next version of graph-api","Q_Score":2,"Tags":"python,django,angular,typescript,facebook-insights","A_Id":69811687,"CreationDate":"2021-07-06T11:51:00.000","Title":"How to fetch swipe up count from Instagram story insights graph API?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have just started working on Django. What I need is to link a js file to my HTML file with a form and save form data. Then go to next screen, click a picture and POST the form data along with the picture.\nI have linked the JS file. I have created an input type button instead of submit as I wanted to use JS.\nMy use case is of register and login. The first page to open is login then on clicking signup button I am taken to register page where I want the functionality that after user fills form and submits he is taken to face capture page.\nI am not able to redirect to capture face page from JavaScript. I am using Vanilla JS.\nWhen I am using window.location.href = \"camera_capture.html\" all I am getting is a url appended to the current url and no change in the current page. Something like\n\nregister\/capture_face.html\n\nIs there a way I can do what I am trying to achieve and is it a good method to do it like this? or is there a better way I can do it?","AnswerCount":2,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":279,"Q_Id":68273735,"Users Score":0,"Answer":"Hello and thank you everyone for you answers and time. I had to make some changes to make it work. Also thanks to @Minia for his help.\nInstead of passing filename.html to window.location.href, I passed just the path_name. Then I created a url in my urls.py file in python and linked it to a view. Then in that view I rendered the html page I wanted to go to.\nAs @Minia mentioned I used \"\/\" also in window.location.href that helped me.\nI think it was a right approach too. If anyone is stuck like me I hope it helps. :)","Q_Score":0,"Tags":"javascript,python,html,django,forms","A_Id":68275531,"CreationDate":"2021-07-06T15:52:00.000","Title":"How to redirect to another page in vanilla JavaScript on submitting HTML form with Django backend?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm looking for a way to run JUnit tests and get the results (whatever the format or the structure) in python. My first guess has been to use JPype, but I would like to know if you know any simpler solution ?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":42,"Q_Id":68301737,"Users Score":0,"Answer":"I've managed to extract tests results with a combination of surefire XML reports along with the lxml python module. To use the intermediate XML reports seems to be the easiest yet the most efficient method.","Q_Score":0,"Tags":"java,python,python-3.x,junit","A_Id":69631568,"CreationDate":"2021-07-08T12:34:00.000","Title":"Retrieve JUnit tests results with python","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"We are using Squish for QT in Python. For my tests I need to start application before execute test suite and close when execution is done.\nTo achieve this I do next steps:\n\nRegister AUT in Squish IDE\n\nStart AUT via subprocess.Popen()\n\nAttach to the application using attachToApplication()\n\nRun test suite (multiple test cases)\n\n\nFirst test case works fine but on the second test case I get an error \"Lost connection to AUT\". Do I need to attach to the application in every test case or is it possible to pass application context to the next test cases?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":495,"Q_Id":68308964,"Users Score":0,"Answer":"Please make sure to 'attach to AUT' at the beginning of each test case in your test suite. Which means, the third step you have mentioned above needs to be done at the beginning of each test case.","Q_Score":0,"Tags":"python,qt,automation,squish","A_Id":69058557,"CreationDate":"2021-07-08T21:48:00.000","Title":"Lost AUT connection between test cases in Squish","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"This is mainly openedx dashboard course page not coming related program.\n\nFailed to get program UUIDs from the cache for site","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":30,"Q_Id":68316215,"Users Score":0,"Answer":"In edxapp user create env (source ..\/edxapp_env) and then run this command\n\npython manage.py lms --settings production\/devstack cache_programs","Q_Score":0,"Tags":"python,openedx,edx,juniper","A_Id":68316216,"CreationDate":"2021-07-09T11:45:00.000","Title":"Failed to get program UUIDs from the cache for site in Openedx Applications","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I have an issue where I can login to Django via my development server but it will not work on the production server.  I am using Heroku to deploy.  All the pages work correctly but I can't login to my Django database.","AnswerCount":2,"Available Count":2,"Score":1.2,"is_accepted":true,"ViewCount":99,"Q_Id":68323252,"Users Score":0,"Answer":"Your user credentials are stored in your database.\nIf you have a different database Server in Production which is hosted online it won\u2019t have the credentials stored that you have in your local development database.\nSo you basically have to get into your deployed Django app using ssh or so and run \u201ecreatesuperuser\u201c there again.\nAlternatively you could copy the user credentials from you local database and push them to your production database; but just creating new ones will probably be easier if you don\u2019t have to deal with a lot of users.\nIf you were using Django with \u201edefault settings\u201c it is using an SQLite file (= database).\nIn Production for a Webapp hosted online it will be most likely a \u201ereal database server\u201d (DBMS) like PostgreSQL or MySQL or so as SQLite is fine for development and testing, but struggles with concurrent user access to data.","Q_Score":0,"Tags":"python,django,heroku","A_Id":68323516,"CreationDate":"2021-07-09T22:28:00.000","Title":"Why does my Django login work on development server but not production server?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have an issue where I can login to Django via my development server but it will not work on the production server.  I am using Heroku to deploy.  All the pages work correctly but I can't login to my Django database.","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":99,"Q_Id":68323252,"Users Score":0,"Answer":"If you are configured different database in your production server you have to execute migrations and createsuperuser. Then you'll able to login.\nYour current user credentials are saved in your database which is configured in local server.","Q_Score":0,"Tags":"python,django,heroku","A_Id":68326650,"CreationDate":"2021-07-09T22:28:00.000","Title":"Why does my Django login work on development server but not production server?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm currently using three models:\n\nSubBriefe with a foreign key pointing to Briefe\nSubBriefe has a many to many relationship to SubBriefeField which allows every SubBriefe to point to Subriefefields\n\nthe problem is that when I use the layout helper to render my tabs of SubBriefe I have inside Tabs of the SubBriefeFields, the probleme is that if SubBriefeField tab \"example\" is in both Subbriefe the ID to activate the tab doesn't work as it is present two time,\ndo you know the function which will make the css.id unique for every tab in my layout helper as I think it already exists for accordion group.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":59,"Q_Id":68326294,"Users Score":1,"Answer":"I found the answer you have to go in the Lib\\site-packages\\crispy_forms\\bootstrap.py and copy and paste two methods directecly in forms.py the Tab class and the Container class which you will rename respectively Tabed and Containered in the container init method you change if not self.css.id ... by\nself.css.id = f\"{self.name}{kwargs['roller']}\" and in your new taber you add the argument roller\nTaber(name ,Row('', *FieldSet(lister), css_class='col-12'), roller=roller)\nand the trick is done, you will have tab within tabs that can have the same name except that we append an argument at the end of the css.id of the tab in case theres repetition,\nof course I use the pointer of the main tabs at the end of the css.id so that when i'm in the first tab the subtab end in 0 the second tab -> the subtab end in 1 ....","Q_Score":1,"Tags":"python,css,django,forms,django-crispy-forms","A_Id":68334855,"CreationDate":"2021-07-10T09:04:00.000","Title":"crispy form tab has twice the same name","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"In my Django application I have a html file and it should get signed digitally.\nWhen a client clicks on a link my html document should open in that tab and highlighting the signing area, then the client click on that portion a popup with text box to enter signature name and select font style or else he can upload his sign image.\nCan anyone suggest me a better approach to achieve this? I integrated DocuSign API with my Django application. This DocuSign is accepting only pdf documents but I need to get signature on HTML document.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":401,"Q_Id":68326781,"Users Score":0,"Answer":"DocuSign eSignature REST API also accepts HTML documents. They are converted to PDF format for you.\nIf you have trouble supplying an HTML document to DocuSign, then please open a new question on StackOverflow and include the relevant parts of your code. Or include the JSON that was sent to DocuSign via the DocuSign request logging feature.","Q_Score":0,"Tags":"python,django,docusignapi,digital-signature","A_Id":68331043,"CreationDate":"2021-07-10T10:17:00.000","Title":"How to sign my HTML document digitally in Django application","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am able to access S3 via boto3 on an ec2 machine, but when I connect via pycharm to the remote interpreter on that exact machine, I get Access Denied.\nI do not think it is the remote interpreter - when I connect to the host via the pycharm terminal, I still get Access Denied. So it looks like there is some pycharm related issue that I am unable to identify.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":92,"Q_Id":68333881,"Users Score":0,"Answer":"a note for the next person looking at this, pycharm connects to the interpreter via sftp, which does not source .profile. so best to configure ~\/.aws\/credentials","Q_Score":1,"Tags":"python,amazon-web-services,pycharm,boto3","A_Id":68334494,"CreationDate":"2021-07-11T06:50:00.000","Title":"aws boto3 access denied when using remote interpreter in pycharm","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to create a simple, Django-based To-do web app. Each task in the app will be linked to tags.\nI can achieve the above by creating models for both the tasks and the tags with many:many relationship. When I create the form for user to create new tasks (using ModelForm), they are also offered up a a way to multi-select tags.\nAll of the above is fine. However, I am trying to figure out a way\n\nto give the user the ability to \u2018create\u2019 new tags when they\u2019re creating new tasks as well.\nAbility for user to enter comma separated tags that get added to db as individual \u2018tag\u2019 objects.\nCan this also be done while retaining the choice for users to select from existing tags?\n\nHow do I achieve any or all of this? Any help would be much appreciated. Thanks!","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":46,"Q_Id":68335009,"Users Score":0,"Answer":"1- you need a button like + in django admin when user click on that show dropdown or something and get tags from user and update your tag list in the tasks form ( with ajax or something else )\n2- i think this is can archieve with frontend  search for select2 library.\nBut if you want user send tag1, tag2, tag3 you can use .split(\",\") in your view to get each tag and save on db.","Q_Score":0,"Tags":"python,django,modelform","A_Id":68335090,"CreationDate":"2021-07-11T09:37:00.000","Title":"Allowing users in Django app to use same form to create two objects","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am creating a webpage in Django. In a Django form I would like a user to be able to provide an image using a URL. I need to save this information and render this image in a html. How should I do this?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":91,"Q_Id":68339976,"Users Score":0,"Answer":"Well you can try this way\nSteps -\n\nFirst create a model in models.py with a URL field (something like image_url = models.URLField(max_length=200, **options)\nThen render a form wherein you take the input(of the URL) and save the input in the model field.\nNow you can use this URL ( which is saved in your db) to display the image","Q_Score":1,"Tags":"python-3.x,django","A_Id":68340044,"CreationDate":"2021-07-11T21:11:00.000","Title":"Display an image from a URL in Django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to list down all the EC2 instances with its IAM role attached using boto3 in python3. But I don't find any method to get the IAM role attached to existing EC2 instance. is there any method in boto3 to do that ?\nWhen I describe an Instance, It has a key name IamInstanceProfile. That contains instance profile id and arn of the iam instance profile. I don't find name of IAM instance profile or any other info about IAM roles attached to it. I tried to use instance profile id to describe instance profile, But it seems to describe an instance profile, we need name of instance profile (not the id).\nCan someone help on this ? I might be missing something.\nThanks","AnswerCount":3,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":1002,"Q_Id":68347014,"Users Score":1,"Answer":"When we describe EC2 instance, We get IamInstanceProfile key which has Arn and id.\nArn has IamInstanceProfile name attached to it.\nArn': 'arn:aws:iam::1234567890:instance-profile\/instanceprofileOrRolename'\nThis name can be used for further operation like get role description or listing policies attached to role.\nThanks","Q_Score":1,"Tags":"python-3.x,amazon-web-services,amazon-ec2,boto3","A_Id":68347354,"CreationDate":"2021-07-12T11:59:00.000","Title":"is there a way to get name of IAM role attached to an EC2 instance with boto3?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am having an issue with the Tailwind LSP in Neovim 0.5 where the language server running however I get no intellisense when defining a class. I am working on a django project and tailwind is all setup with the following structure.\n.\n\u251c\u2500\u2500 .git\/\n\u251c\u2500\u2500 .venv\/\n\u251c\u2500\u2500 node_modules\/\n\u251c\u2500\u2500 src\/\n\u2514\u2500\u2500 static\/\n\u251c\u2500\u2500 package.json\n\u251c\u2500\u2500 postcss.config.js\n\u2514\u2500\u2500 tailwind.config.js\nI have set the \"root_dir\" setting in the tailwind lsp setup to:\nlsp.util.root_pattern('tailwind.config.js') orlsp.util.root_pattern('tailwind.config.js', '.git', 'postcss.config.js')etc, but with no success.\nThe only way I can get intellisense is if I place a html file right in the root next to the tailwind.config.js and edit it.\nHas anyone else come across this and might know where I am going wrong.\nAppreciate any help, thanks","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":501,"Q_Id":68347170,"Users Score":1,"Answer":"Turns out TailwindCSS lsp wasn't recognising the htmldjango filetype so once I added the following to the setup it worked:\ninit_options = { userLanguages = { htmldjango = \"html\" }","Q_Score":0,"Tags":"python,django,tailwind-css,postcss,nvim-lspconfig","A_Id":68375863,"CreationDate":"2021-07-12T12:10:00.000","Title":"Tailwindcss LSP for Neovim root_dir issue","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Is there a way to convert incoming body data from JS client side to snake_case, and convert outcoming response data from the server to camelCase. Besides, I want to implement it with Pydantic.\nBy the way, I am a total newbie in FastAPI + Pydantic","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":160,"Q_Id":68358753,"Users Score":0,"Answer":"There is a helpful python package for it - fastapi_camelcase","Q_Score":1,"Tags":"python,fastapi,pydantic,camelcasing","A_Id":68372031,"CreationDate":"2021-07-13T08:09:00.000","Title":"Convert response to camel case on JS client side and convert request data to snake case on server fastapi","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have made a flask project in which I have used OS module to save uploaded files to a folder in my projects directory and do some stuff, its working fine in my pc but when I deploy it on heroku, the OS module is not saving files to the folder. please help me out, that  project is very important for me","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":50,"Q_Id":68358807,"Users Score":0,"Answer":"Sometimes at Linux servers \/child_directory not works you need to specify all locations like \/user\/home\/directory","Q_Score":0,"Tags":"python,flask,heroku,file-upload,operating-system","A_Id":68359115,"CreationDate":"2021-07-13T08:14:00.000","Title":"os module is not working after flask project deployed on heroku","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am making a music player with flutter so, I wanna to ask how to access all the files of a particular extension ( mp3, wav ) with it's details in Flutter or if not in Flutter then Python to play those music files with details like song name, author name","AnswerCount":2,"Available Count":1,"Score":0.0996679946,"is_accepted":false,"ViewCount":67,"Q_Id":68372110,"Users Score":1,"Answer":"If u are using flutter with native app, then you can use path_provider and the dart File to get all you want in Android. However, ios is more like a sandbox, so it is hard to get what u want.","Q_Score":1,"Tags":"python,flutter,file","A_Id":68372605,"CreationDate":"2021-07-14T04:35:00.000","Title":"Accessing Files from User Device using Flutter or Python","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to generate the signed url for the Google cloud storage object without expiration time. But when I am creating the signed url with V4 signing process, it is getting expired after seven days.\nIs there any alternative to achieve this?\nAlso, what was the expiration time of V2 signing process?","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":1088,"Q_Id":68379400,"Users Score":0,"Answer":"The intent with Signed URLs is to provide (time-)limited access to a Cloud Storage URL.\nTake away the time limitation and you may wish to consider just making the URL public.\nSigned URLs are accessible to anything that has the URL. So, if you're concerned with discovery of guessable URLs (e.g. my-bucket\/my-object-path) then you could consider obfuscating the object name, perhaps using base64-encoding to make the URL less-guessable although easily derivable:\nmy-bucket\/my-object-path --> my-bucket\/bXktb2JqZWN0LXBhdGg=","Q_Score":0,"Tags":"python,google-cloud-platform","A_Id":68381358,"CreationDate":"2021-07-14T13:52:00.000","Title":"Create the generated signed url without expiration time for Google cloud storage object","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"The title is my question. I can't think of anything that is useful to store jobs to external database.\nCan you guys provide some use cases?\nthank you.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":87,"Q_Id":68384355,"Users Score":0,"Answer":"If you schedule jobs dynamically (at run time instead of adding them all at application startup), you don't want to lose them when you restart the application.\nOne such example would be scheduling notification emails to be sent, in response to user actions.","Q_Score":0,"Tags":"python,mongodb,redis,jobs,apscheduler","A_Id":68391755,"CreationDate":"2021-07-14T19:57:00.000","Title":"Why would i want to store apscheduler jobs to JobStore (Redis, Mongo, etc.)?","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I am learning django. And recently I have came upon something that I don't understand.\nThere are two different version of reverse module that can be imported.\nOne is:\nfrom django.shortcuts import reverse\nAnother is:\nfrom django.urls import reverse\nWhat are the actual difference between them? Can someone explain to me in an easy way?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":120,"Q_Id":68387393,"Users Score":1,"Answer":"there is no difference they put it to packages, the original is in urls but because it use so much it is on shortcuts too, think of it like windows shortcuts and original file","Q_Score":0,"Tags":"python,django,django-models,django-views,django-templates","A_Id":68387432,"CreationDate":"2021-07-15T03:07:00.000","Title":"Difference between shortcut reverse and url reverse in Django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have successfully deployed my Python web app in Pythonanywhere, complete with login authentication using flask-user.\nI want to programmatically login to this Python web app from a Lazarus FPC desktop client so I can interact with the API. Of course I have knowledge of valid username\/password combos. I see no obvious way to do it, and from security standpoint not straightforward as it seems. What is the proper way to do this?","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":76,"Q_Id":68395097,"Users Score":1,"Answer":"I gleaned from Googling, and from other forum the following:\n\nA web app is meant to operate with some human intervention. My app\nwas like that, so authenticating outside of the web app is a lot more\nwork (at my level), but doable.\nA REST API is meant to drop payload to another app (or human) and authentication is handled differently.\nI need to rework my app to be more like this.\nIf you develop in\nFPC\/Lazarus, you also have the option to develop a REST API or server\nand deploy them in a paid VPS or your own box, thus removing the need\nfor a Python app.","Q_Score":0,"Tags":"python,authentication,flask,lazarus,flask-user","A_Id":68425171,"CreationDate":"2021-07-15T13:48:00.000","Title":"Login to Python web app from Lazarus FPC desktop client","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"The program is a standard flask program, and it does some cleanup as part of the initialization. In the cleanup() procedure, using os.remove(\"abc.txt\"), I noticed that the file is removed, but not reclaimed by the OS.\nI use both \"python website.py\" and \"gunicorn website:app\" to run the application and both have the same problem, in Linux environment. In MacOS, I can't reproduce it.\nAfter the file is os.remove , it is no longer listed in \"ls\" command, but when I run\nlsof | grep deleted\nI can still see this file being listed as deleted but opened by the python application.\nBecause this file is already \"os.remove\", it is not listed in ls command, and du will not calculate this file.\nBut if this file is big enough, df command will show the space of this file is still being occupied, not being reclaimed. Because this file is still \"being open by the flask application\", as the lsof program claimed.\nAs soon as I stop the flask application from running, the lsof will not have this file, and the space is reclaimed.\nUsually when the file is too small, or when the application stops or restarts frequently, you won't notice the space is being occupied. But this is not very reasonable for keeping the space. I would expect the website running for years.\nWhen searching internet for \"open but deleted files\", most suggestions are \"find the application and kill it\". Is there a way to keep the flask application running without restarting it? My application doesn't actually \"open\" this file, but simply os.remove it.\nSuggestion on how to delete file and re-claim the space immediately?","AnswerCount":2,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":100,"Q_Id":68401311,"Users Score":0,"Answer":"The Flask application either needs the large file to continue running, or does not release unneeded resources.\nIf the app needs the large file, that's it. Otherwise, the app is buggy and in need to be corrected.\nIn both cases, the \"being open\" status of the large file (that, at least on Linux, leads to the file still being present in the mass memory system) cannot be controlled  by your script.","Q_Score":1,"Tags":"python,linux,lsof","A_Id":68406918,"CreationDate":"2021-07-15T22:12:00.000","Title":"A flask website, when it delete a file (os.remove(\"abc.txt\")), the file is removed but the space is not reclaimed","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I need to store the username and twitter token when he\/she logs in and then later use it for whatever purpose, should i use FK for the twiter token field?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":39,"Q_Id":68427282,"Users Score":1,"Answer":"Well FK is used in 1:n so if the token can be used for multiple users, then you can use it ...\nif the token is unique for user (in this example i think it is) you can use classic Charfield on user model... and you will avoid join tables every time you want to get users token.","Q_Score":0,"Tags":"django,django-rest-framework,foreign-keys,mysql-python","A_Id":68427431,"CreationDate":"2021-07-18T08:18:00.000","Title":"I dont know if i should use models.Foreignkey or just Charfield to store oauth token","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm new to Django, I have created a webportal and recently came to know their is an issue in the portal. After changing the html content, its not reflecting the content in portal, still displaying old html data. Could someone please tell me, what needs to be done.\nNote: I have reloaded django from command prompt and verified,  but getting the same issue, Thank You!!","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":35,"Q_Id":68432327,"Users Score":0,"Answer":"it may be cached by your system (or CDN if you use).\ntry clear your system cache (ctrl+F5).","Q_Score":0,"Tags":"python,django","A_Id":68432942,"CreationDate":"2021-07-18T19:13:00.000","Title":"Django Changing HTML Template Not Reflecting","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm new to Django, I have created a webportal and recently came to know their is an issue in the portal. After changing the html content, its not reflecting the content in portal, still displaying old html data. Could someone please tell me, what needs to be done.\nNote: I have reloaded django from command prompt and verified,  but getting the same issue, Thank You!!","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":35,"Q_Id":68432327,"Users Score":0,"Answer":"I fixed it by clearing python cache. Now its reflecting as expected","Q_Score":0,"Tags":"python,django","A_Id":69879645,"CreationDate":"2021-07-18T19:13:00.000","Title":"Django Changing HTML Template Not Reflecting","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am very new to django I set up an environment and now later when I try open the environment it is not running.\nPlease help.\nSorry if this a noob question I am very new with django","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":25,"Q_Id":68435795,"Users Score":1,"Answer":"It sounds like you did not source the environment.\nOn Mac\/Linux do:\n'source <path to the venv you created>\/bin\/activate'","Q_Score":0,"Tags":"python,django","A_Id":68435841,"CreationDate":"2021-07-19T06:09:00.000","Title":"How do I run previously set up environment in django?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am creating a personal website using flask and python. I am using flask-mail to set up a smtp server with gmail, which requires the credentials of a gmail account. I wanted to know if there was a way to encrypt or protect the password and account of my gmail when pushing to GitHub?","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":161,"Q_Id":68446751,"Users Score":0,"Answer":"Never Push your credentials and API keys to Github, always prefer to store these credentials in env file.","Q_Score":0,"Tags":"python,flask,github,flask-mail","A_Id":68446819,"CreationDate":"2021-07-19T20:37:00.000","Title":"Password protection for public github","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm running PyCharm on Manjaro(latest version of both) and upon starting PyCharm, a prompt appears that says I should \"Please consider switching to the bundled Java runtime that is better suited for your IDE(your current Java runetime is 11.0.11+9 by Oracle Corp. at \/usr\/lib\/jvm\/java-11-openjdk\"\nI've tried choosing different runtimes using Ctrl+Shift+A but none of them stop this prompt from appearing. Is this something I should worry about or should I brush it off?\nNew to both Python and Manjaro so not really sure how to proceed. Unable to find anything pertaining to this issue on this distro.\nEdit: I downloaded the most recent version(11.0.12) and adding it as a custom runtime, but for some reason it shows that I'm still using the aforementioned version...","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":566,"Q_Id":68474463,"Users Score":0,"Answer":"TL;DR: Run $ PYCHARM_JDK=\/path\/to\/runtime\/ pycharm\nIf you installed PyCharm through the package manager (e.g. pacman), the launcher will be installed to someplace like \/usr\/bin\/pycharm. This is basically a shell script that sets the JDK for PyCharm before calling the main executable. When the environment variable PYCHARM_JDK is not set, it defaults to a system Java 11 JDK.\nChanging the boot runtime within PyCharm doesn't change this script. You'll need to set PYCHARM_JDK from the command line, in your .bashrc, or by editing \/usr\/bin\/pycharm. Use Help -> About to confirm that the expected runtime was selected.\nAs for which runtime to use, jbr_jcef-11_0_11-linux-x64-b1341.60 works nicely on my machine. The JetBrains support forum will have to explain what the differences are.","Q_Score":0,"Tags":"java,python,pycharm,manjaro","A_Id":68606620,"CreationDate":"2021-07-21T18:04:00.000","Title":"Switching to bundled Java runtime for PyCharm(Manjaro)?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"As above. Encountered these two issues.\nAn element could not be located on the page using the given search parameters.\nThe element does not exist in DOM anymore","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":287,"Q_Id":68483968,"Users Score":1,"Answer":"The first error\n\nAn element could not be located on the page using the given search parameters\n\nIndicates that Selenium could not find element matching the given locator on the page.\nWhile the second error\n\nThe element does not exist in DOM anymore\n\nIndicates that the element was on the page, but no more existing there.\nThis is actually a Selenium Stale Element error.\nStale means old, decayed, no longer fresh. Stale Element means an old element or no longer available element. Assume there is an element that is found on a web page referenced as a WebElement in WebDriver. If the DOM changes then the WebElement goes stale. If we try to interact with an element which is staled then the StaleElementReferenceException is thrown.","Q_Score":1,"Tags":"selenium,appium,python-appium,staleelementreferenceexception","A_Id":68484057,"CreationDate":"2021-07-22T11:24:00.000","Title":"(Appium-Python) Difference of \"Element could not be located on the page using the given search parameters\" & \"Element does not exist in DOM anymore\"","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm wondering if you can use conditions to change what is shown from the template based on a foreignKey. On my project, users will choose a muscle group they want to workout (Chest, Back, Legs, etc.), meaning each workout has a foreginKey to a large muscle group.\nI want to make it so if a user chooses a workout that has a foreignKey to Legs, that the template will be unique vs. if the workout was a Chest exercise.\nAny way to do this?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":29,"Q_Id":68489525,"Users Score":0,"Answer":"You could use {% if muscle_part == [ENTER_STRING_TO_VERIFY_WITH] %} in your HTML and pass the muscle part string in your context while rendering the view. This way all your programs would be in one template but based on your context, they will be displayed accordingly.","Q_Score":0,"Tags":"python,django,django-templates,foreign-keys","A_Id":68489649,"CreationDate":"2021-07-22T17:57:00.000","Title":"Django Using conditional in template based on foreginKey value?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have created a web app but I want to prevent a user from accessing the admin panel in Django web app.The user will only be allow to access the custom created site but not Django's default admin site.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":168,"Q_Id":68490000,"Users Score":0,"Answer":"I don't think I understood what is your issue really well, but I'm going to list some things related to what you asked.\n1 - If you want to log in as the admin user, and as another user in the site, that is not possible, if you are logged in as the admin in the admin panel you are going to be logged in as the admin in the site. So if you want to log in as a different user in the site, just logout of the admin panel, and login as the user that you want to use.\n2 - If you want to separate the project in two different folders, one for the admin part, and one for the rest of the application, you can create an app using the command: django-admin startapp name_of_the_app. This will create a folder with some default python files that you can use to separate the project.\nHope I've helped, if I wasn't able to solve your issue, feel free to contact me.","Q_Score":0,"Tags":"python-3.x,django,django-admin,django-authentication","A_Id":68490382,"CreationDate":"2021-07-22T18:39:00.000","Title":"How can restrict a user from accessing the admin panel in django?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"When you do a request in python, you simply download the page and your connection is over.\nHowever, if you open it in your browser, for some websites the page content will automatically refresh. For example the stock prices on yahoo finance, or notifications on reddit.\nIs it possible to replicate this behaviour in python: automatic refresh without having to constantly manually re-download the same page entirely?","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":73,"Q_Id":68500482,"Users Score":0,"Answer":"The results will be the same if you re-download the page. Don't make it harder than it has to be. If you are hell-bent, you'll need to use something like puppeteer, phantomjs, or selenium.","Q_Score":0,"Tags":"python","A_Id":68500538,"CreationDate":"2021-07-23T14:04:00.000","Title":"Open a web page and let it refresh automatically in python","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I receive this error when trying to use IBM Watson. Maybe someone has the same problem - or even better - a solution?\n\n\n    Traceback (most recent call last):\n      File \"MY FILE.py\", line 27, in \n        service.recognize(\n      File \"C:\\Users\\...\\lib\\site-packages\\ibm_watson\\speech_to_text_v1.py\", line 566, in recognize\n        response = self.send(request)\n      File \"C:\\Users\\....\\lib\\site-packages\\ibm_cloud_sdk_core\\base_service.py\", line 308, in send\n    raise ApiException(response.status_code, http_response=response)\n    ibm_cloud_sdk_core.api_exception.ApiException: Error: \n    Internal Server Error\n    Internal Server Error - Write\n    The server encountered an internal error or misconfiguration and was unable to\n    complete your request.\n    Reference #4.a54a0760.1627114991.5298a594\n    \n    , Code: 503\n\n\nHere is the code I am using\n\n\n    # Accepts only .mp3 Format of Audio\n    # File \n      \n       \n    import json\n    from os.path import join, dirname\n    from ibm_watson import SpeechToTextV1\n    from ibm_watson.websocket import RecognizeCallback, AudioSource\n    from ibm_cloud_sdk_core.authenticators import IAMAuthenticator\n      \n       \n    # Insert API Key in place of \n    # YOUR UNIQUE API KEY - I replaced this text with my API KEY in actual code\n    authenticator = IAMAuthenticator('YOUR UNIQUE API KEY') \n    service = SpeechToTextV1(authenticator = authenticator)\n       \n    #Insert URL in place of API_URL - below is actual I am using\n    service.set_service_url('https:\/\/api.us-east.speech-to-text.watson.cloud.ibm.com')\n       \n    # Insert local mp3 file path in\n    # place of LOCAL FILE PATH - I am using my C drive and replaced actual file path ending \n    with open(join(dirname('__file__'), r'C:\/Users\/LOCAL FILE PATH.mp3'), \n          'rb') as audio_file:\n      \n        dic = json.loads(\n                json.dumps(\n                    service.recognize(\n                        audio=audio_file,\n                        content_type='audio\/flac',   \n                        model='en-US_NarrowbandModel',\n                    continuous=True).get_result(), indent=2))\n      \n    # Stores the transcribed text\n    str = \"\"\n      \n    while bool(dic.get('results')):\n         str = dic.get('results').pop().get('alternatives').pop().get('transcript')+str[:]\n       \n    print(str)","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":180,"Q_Id":68508385,"Users Score":0,"Answer":"Solution provided by IBM engineer worked;\n\"Your code is using the URL of our US-East datacenter and it's recommended to include your instance ID in the URL.\"\nAdding URL ...\/instance\/MY ID\nsolved problem!","Q_Score":0,"Tags":"python,server,websphere,ibm-watson,internals","A_Id":68523536,"CreationDate":"2021-07-24T08:45:00.000","Title":"IBM Watson \"Internal Server Error - Write\" Error - ibm_cloud_sdk_core.api_exception.ApiException: Error","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"It's my second day of Django and everything seems to be going petty well. Though the installation process is a bit longer, I still find it friendly to get started with. I am currently learning how to pass data to static file from views.py. The problem I am having is that it is only showing the previous changes not the recent. I have hard-refresh but still not working. I don't know how to stop and rerun the server because I don't know how to combine both Ctr + BREAK.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":528,"Q_Id":68518515,"Users Score":0,"Answer":"Ctrl + break mean pressing ctrl and alphabet c key at same time it will break the server and if you want to rerun it run the command\npython manage.py runserver\nThere may be issue that you won't Saving your work other then this try force reload CSS file by pressing ctrl+ f5 in browser tab in which Django project is running.It might be helpful.","Q_Score":1,"Tags":"python,html,django","A_Id":68522615,"CreationDate":"2021-07-25T12:22:00.000","Title":"Django changes is not reflecting on the browser","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"So, I'm currently learning Django.\nAnd I got confused when I started creating, for example, 'templates' folder. So templates folder is where we can actually store templates for the web application.\nDo we actually need to name the folder 'templates'? Or could we name it something else?","AnswerCount":2,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":37,"Q_Id":68519650,"Users Score":1,"Answer":"It's better to use name 'templates' and with a subfolder name of your Django app like blog\/templates\/blog and save your HTML files in this and if you wanna save your CSS and js files do same but this time choose name static as blog\/static\/blog where blog is may be your app name , if you're a beginner and if you've done with Django before then you can change your settings.py in project folder","Q_Score":1,"Tags":"python,html,django,templates,web","A_Id":68522579,"CreationDate":"2021-07-25T14:40:00.000","Title":"Django : Do you need to name a tag library (templates, static, etc) with a specific folder name?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to send an email, which is done with HTML and CSS, with Selenium, it appears that it can't get the page itself, only the text, or the code, so is there a way to copy the page.\nTried:\n\nSending Keys, (Keys.CONTROL + 'A').... (Keys.CONTROL + 'C') and assigning it to a var but didn't get what I want.\n\nConstructing a field in the beginning and manually copy the content and paste it in the field, then getting its value, but same thing, it only gets the text.","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":167,"Q_Id":68520449,"Users Score":0,"Answer":"I found it,\nthe Sending Keys,\n(Keys.CONTROL + 'A')\n(Keys.CONTROL + 'C') worked but I just needed to send (Keys.CONTROL + 'V') Not assigning it to a var","Q_Score":0,"Tags":"python,selenium","A_Id":68520691,"CreationDate":"2021-07-25T16:17:00.000","Title":"How to copy HTML content with Selenium","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am creating an API in PHP which pass some parameters to python and generate a report in pdf format.\nin report_gen.py file I have code to get parameters and generate pdf. Which is working successfully through command line but when I run PHP file from browser or postman it do not works.\nI want to run my PHP file through cronjob so it automatically call in specific time.\n$data = 'Basic Will Johnyy Willson Smith';\n$command = escapeshellcmd(\"python3 report_gen.py $data\");\n$output = shell_exec($command);\necho $output;","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":167,"Q_Id":68543088,"Users Score":0,"Answer":"There can be (at least) two problems.\nFirst you need to check\/know, that the server maid use another environment. I believe, that you did not use the webserver-user for your local checks. So I would try to use absolute pathes. You also have to make sure, that the python-environment (whatever you have configured) has to be the same as your local user.\nSecond you need to make sure, that you have all rights to run the file (the webserver, that is used by the webserver needs to have at least reading right on report_gen.py).","Q_Score":0,"Tags":"python,php,shell-exec","A_Id":68543527,"CreationDate":"2021-07-27T10:17:00.000","Title":"By running python script with php - working in console but not in web browser","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm deploying a django API which does not have any static files, When is deploy it using heroku via GitHub without using heroku CLI, I get an error\n\nError while running '$ python Rest_Api\/manage.py collectstatic --noinput'.\n\nNB In my settings file i have the default django\nSTATIC_URL = '\/static\/'\nHow can i tell heroku my app does not have any statics thus should not expect it?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":36,"Q_Id":68543118,"Users Score":0,"Answer":"you will want your admin panel to look good when deployed and they do have static files. so deploy as you would deploy django with static files","Q_Score":1,"Tags":"python,django,heroku","A_Id":68544356,"CreationDate":"2021-07-27T10:19:00.000","Title":"Deploying python API in heroku without static files","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am using django for password management and I understand that DJango uses one-way hash to store passwords. My application is using django.contrib.auth.hashers.PBKDF2PasswordHasher\nI have a table PasswordHistory where I save last 10 passwords. Passwords are saved using django hashing.\nI want to restrict user to have a password with \"n\" or more characters present in a previous password. Right now, it is not possible as I can not get password from hashed string.\nIs there a way to do so using django? Otherwise, I will have to save passwords using my own encryption\/decryption logic. I know this is not a secure way, but may be the last option I have.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":23,"Q_Id":68544959,"Users Score":0,"Answer":"No, this is not possible while using hashed passwords. The whole point of storing hashes is so that you don't store the passwords.\nYou can prevent exact matches with previous passwords, but not approximate\/fuzzy matches.\nDo not attempt to store passwords in a reversible state, encrypted or otherwise. There is a hall of shame for websites that do this. Encrypting the passwords is barely more secure than storing them in plaintext and, really, not secure at all. There's no good reason to do this.","Q_Score":0,"Tags":"python,django","A_Id":68545779,"CreationDate":"2021-07-27T12:36:00.000","Title":"django - Restrict \"n\" or More Characters Present in a Previous Password","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am currently creating a discord bot in Java and decided to write a script in python as it had libraries that proved very useful for web scraping. By using Jython, I was able to run the script. The bot successfully came online, however, it resulted in the following:\nImportError: No module named praw\nWhen I run the python script by itself in another IDE, it works perfectly. I was wondering if I have to add praw as a dependency in gradle? Suggestions are appreciated.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":59,"Q_Id":68547463,"Users Score":0,"Answer":"If you're using python 3 you need to use pip3 when installing packages\n$ pip3 install praw","Q_Score":0,"Tags":"java,python,intellij-idea,praw","A_Id":68547661,"CreationDate":"2021-07-27T15:11:00.000","Title":"Using Python Libraries in Java (IntelliJ)","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a Python script that goes into my Gmail inbox and looks for certain emails based off the subject line. I would like to automate this process; however, my credentials seem to expire on a weekly basis. Whenever they expire and I run my script, it opens up my browser and prompts me to authorize my app. Is there anyway this can be bypassed so that I can automate my script and not have to constantly authenticate my app through the browser?\nThanks!","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":352,"Q_Id":68552628,"Users Score":0,"Answer":"If your app is in the testing phase the refresh token will expire after a week. If you want your refresh token to last longer you will need to set your application to production and go though the verification process.\nif this is a google workspace email account then you should consider using a service account for authorization and setting up domain wide delegation.","Q_Score":0,"Tags":"python,google-api,google-oauth,google-api-client","A_Id":68562159,"CreationDate":"2021-07-27T23:04:00.000","Title":"How to bypass the Google API Website authentication flow","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I was curious if you made an application in python how do you ship it? If you made it in a virtual enviroment can you just give that out for download? Do you need some kind of install process?\n(In my case it would be a webapp made with flask intended to run on a linux server)","AnswerCount":5,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":239,"Q_Id":68564411,"Users Score":0,"Answer":"In your case I'd heavily suggest you build a docker container and archive the code via git. In my experience, just doing pip freeze > requirements.txt does not suffice when the intended audience is not python literate. Especially issues with venv and conda setups have cost me way to many hours of my life.","Q_Score":1,"Tags":"python","A_Id":68570593,"CreationDate":"2021-07-28T16:49:00.000","Title":"How to ship python projects?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am unable to find a way to join two firestore tables in python. Does anyone have any information on this?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":70,"Q_Id":68565195,"Users Score":0,"Answer":"Firestore doesn't have the concept of server-side joins, no matter what SDK you use.\nIf you want information from multiple collections, your options are:\n\nTo perform a separate read for each collection (and possibly for each document) in your application code, essentially performing the join operation client-side.\nTo duplicate the information into the the documents from one collection, so that you only have to read from that collection.\n\nNeither of these is pertinently better than the other, but you're roughly trading having data duplication against performing more operations from your app.","Q_Score":0,"Tags":"python,firebase,google-cloud-firestore,firebase-admin","A_Id":68565252,"CreationDate":"2021-07-28T17:49:00.000","Title":"How do I do a join of two tables in firebase_admin for Python?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm working on a Django project and i want to be able to disable or enable email registration verification in admin panel, with a radio button, if it's set to ON, when user registers to site need to verify email, but if it's set to OFF user account activate after registration and don't need to activate account with email verification","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":104,"Q_Id":68589267,"Users Score":0,"Answer":"Hope you are having a good time.\nI would like the purpose behind allowing email verification after registration because it's sole purpose is to validate authentic users and not allow unidentified login attempt to pass.\nBecause there have been so many hacking attempts just because of insecure security steps on login panel itself these days, I think it is better if we retain the email verification and not switch its permission.","Q_Score":0,"Tags":"python,django","A_Id":68590074,"CreationDate":"2021-07-30T10:16:00.000","Title":"django how to disable & enable email verification in admin panel","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I need to create a route to edit a purchase, but editing can only be done if the status of the purchase is \"in validation\". Does anyone know what Django tool I use to limit a status-based model?","AnswerCount":3,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":38,"Q_Id":68594502,"Users Score":0,"Answer":"You can include a boolean field in_validation within your purchase\/order model. If your app has an Edit Orders page, you can apply a filter on your database fetch call to show only those orders on the page that have in_validation == True.\nAlso, in your Django view where you implement the edit order logic, you can use a simple if-else check to ensure that the order has in_validation == True.\nBasically, you just have to edit your model to include an extra field rather than use a separate tool for this.","Q_Score":0,"Tags":"python,django,django-models","A_Id":68594623,"CreationDate":"2021-07-30T16:48:00.000","Title":"Django Limiting models based on status","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a database of ready made images to upload to a twitter page, but can't seem to figure out a way around saving the images to my local machine first.\nThe pictures will be uploaded by a bot running on Heroku, which is pulling the code from Github, so saving and deleting images would mean constant commits etc right?\nIs it possible to upload the image directly as bytes (pre saved as a .png) and skip this? or is there another possible workaround?\nworking with python 3.8 and currently using tweepy, although the module is irrelevant if I can upload images without saving.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":82,"Q_Id":68594714,"Users Score":0,"Answer":"There are no workarounds. You'll have to write the bytes to an actual .png file before you can upload it to the Twitter API.","Q_Score":0,"Tags":"python,mysql,heroku,twitter,twitterapi-python","A_Id":68597524,"CreationDate":"2021-07-30T17:08:00.000","Title":"Upload\/Post an image to Twitter direct from MySQL database (blob\/byte format) without saving image in Python","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"We are building a customer application. For that, we are using accounting software (ZOHO). Items will be fetched from the accounting software and bills will be generated directly on accounting software using API. API is using JWT for authentication. To generate JWT tokens for each user then is a 'user consent page', which should be manually approved from the web browser. So, for each customer we are not going to register as a user, we are planning to create them as just customers.\nWhat we are actually planning to do now, is create one JWT token pair (After manual approval) and use it for all customers for all API calls. My first concern, is that will be a good approach?\nThe second concern, the Token has an expiry of 1 hour. After that, we should use the refresh token to generate the new token. How we can efficiently handle this on the web and mobile (Customers on the web and mobile simultaneously using the same tokens for API calls and the Token change should reflect on all client devices)? Doing this is a good idea?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":105,"Q_Id":68616421,"Users Score":0,"Answer":"In this case, you can create a Connection for Server-Based Application in Zoho Books and thereby authenticate the API calls using OAuth. When you set this integration up, the communication through API will be only between Zoho Books and your third-party application, and not directly between Zoho Books and your customers. Therefore, you can validate the user interface for your customers at your end.\nWhen you initially build the API integration, you will be creating a Refresh Token. This can be hardcoded in your script and set to generate Access Token from it every hour. Please note that the Refresh Token and Access Token have to be generated separately for Web-based and Mobile-based applications. Here is our help resource for your reference. You can store the access token and expiry time, and verify the expiry time before using the access token. If it has expired, generate a new access token. Please take extra care to ensure that the refresh tokens are not exposed.\nI hope this helps. Feel free to contact us if you have further queries.","Q_Score":0,"Tags":"python,django,jwt,zohobooks","A_Id":70322039,"CreationDate":"2021-08-02T04:35:00.000","Title":"Best practice of refreshing JWT tokens from mobile and web simultaneously","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Hello guys I have an existing Django project which has certain features and also has user data. For certain features, users use the API served through Django (also the authentication), but since there is a need for new feature which needs to be implemented through FastAPI,  I need to have the same users authenticate or (better to say) to be recognized by FastAPI (as the same user in Django) to save or retrieve an action corresponding to user in the db (through FastAPI).\nHow to achieve that? How do I store the user data, like user_id and username for each user safely? How to properly design the database table?\nPlease do let me know, how to start.\nThank you.","AnswerCount":2,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":265,"Q_Id":68623238,"Users Score":1,"Answer":"Assuming you've implemented your own AbstractUser sub-class named DannyUser, you then have a couple of choices:\n\nEmbed all of the information needed into a new field (a JSONField subclass for example) -- not really recommended as this leaks random information into a housekeeping table and is ill-advised IMO.\n\nDesign a new Model for each authentication service and tie it via a foreign key & reverse relationship to your DannyUser instances. Then you could use something like my_danny_instance.fastapi_account.auth_token where needed. This will also allow you to encrypt specific fields or use a secret management solution later on.\n\n\nSimply normalize your data as far as it makes sense to.","Q_Score":3,"Tags":"python-3.x,django,django-models,django-rest-framework,fastapi","A_Id":68704747,"CreationDate":"2021-08-02T14:22:00.000","Title":"How to identify and save the right \"user\" when we use Django (Existing proj) for authentication and FastAPI (new feature) for API's?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to log my user with a link generated from me, basically this is the workflow, a user wants to fill a form from my site, but they comunicate through whatsapp, so i will generate a link for them, but the catch is they have to log in once they go into the page, since they will fill some sensitive data , plus, id like them to get logged into the system and use other functionalities if they want.\nSecurity wise, i will always know if the user is who they say when they message me bc i can recognize the phone number, so i dont need them to log in again once they click the link and go into the browser. Dont get me wrong i want the user to be able to log in if they want from their computer, but it makes it a lo easier if they dont have to do that form mobile.\nBased on the phone number i will know the user, so what i need is  generate a link where they will click and it will be self authenticating, meaning they will be logged with this link and forwarded to where they neeed.\nI'd appreciate any recomendations or tecnologies to do this implementation","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":41,"Q_Id":68625251,"Users Score":1,"Answer":"You will have to send links with generated api-tokens that allow them to log in for a certain amount of time after you generate the link.\nThe link may be something like https:\/\/yoursite.com\/api?token=the_special_token and then in your login View, you write a function to check the validity of the token against the user's phone number provided.\nYou can use on django's token module to generate and authenticate the tokens.","Q_Score":0,"Tags":"python,django","A_Id":68625761,"CreationDate":"2021-08-02T16:46:00.000","Title":"Authenticate Django from url without login","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have PL\/SQL function defined in oracle database. When I call it in \"Toad For Oracle\" using following statement\n\"select ccl_bal(1,2,0) from dual\"\nit take hardly 2 seconds. But when I call it from Django 3.2 it takes lot of time, almost 5 minuts. I am using cx_oracle oracle library 8.1.0 and Here is my code.\nresult=connection.cursor().callfunc(\"ccl_bal\",int,[1, 2, 0])\nAny help??","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":147,"Q_Id":68631958,"Users Score":0,"Answer":"This can very well be caused by different optimizer settings in the session. You can compare by checking:\nselect value from v$parameter where name='optimizer_mode';","Q_Score":0,"Tags":"python,django,oracle,cx-oracle","A_Id":68645616,"CreationDate":"2021-08-03T07:28:00.000","Title":"Django with cx_Oracle, calling PL\/SQL function is taking lot of time","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Within a GAE application, we want to process Pub Sub messages by batches, for example: every 10 seconds read all pending messages on a subscription and process them in a batch (because that will be more efficient).  A synchronous subscriber.pull() would nicely allow us to read a batch of pending messages.  The question is what would I do next ?   Sleep for 10 seconds then read again ?  But that would require a permanent background task, which is sort of difficult to set up in App Engine.   An endpoint called by a cron every minute (or every hour), that runs a number of cycles of [ read and process messages, sleep for 10 seconds ] cycles for an hour, then exits ?  Any better idea ?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":176,"Q_Id":68642529,"Users Score":1,"Answer":"You can use Cloud Scheduler to call every minutes your App Engine endpoint. This endpoint reads the pubsub subscription for a while (let say 45 seconds) processes the messages and then return a 200 HTTP code.\nIf you want to read by time window of 10s, you need to build the process on your side. Continue to call the endpoint every minutes (it's the Serverless pattern, the process is perform only inside a request handling), but the endpoint listen the subscription for 10s, processes the messages, sleep 10s et repeat that 5 time, and then return a 200 HTTP code.","Q_Score":0,"Tags":"python,google-app-engine,google-cloud-pubsub","A_Id":68648911,"CreationDate":"2021-08-03T20:39:00.000","Title":"GCP Pub Sub: process messages by batches","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"The \"COPY CONTENT FROM [available translation languages]\" button is not showing in the admin page editing interface.\nThe package was installed properly, following official documentation.\nWhat can cause the issue and how to fix it?","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":37,"Q_Id":68661457,"Users Score":1,"Answer":"The issue was in app register order. wagtail_modeltranslation app should be registered on top of user apps","Q_Score":0,"Tags":"python,django,internationalization,wagtail,django-modeltranslation","A_Id":68661485,"CreationDate":"2021-08-05T06:12:00.000","Title":"No \"Copy content from\" wagtail-modeltranslation button","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have added some code in the pre_delete signal that deletes the images from aws s3 bucket.\nBecause of this, delete is taking more time which would obviously happen.\nBut I want to show some loading message till the object deletes and redirect to the model tabular view again.\nHow can I add that loading message ?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":45,"Q_Id":68663968,"Users Score":0,"Answer":"I dont think you can do that with Django itself. You will need knowledge of a language which runs in the user's browser such as JavaScript","Q_Score":0,"Tags":"python,django,django-models,django-views,django-templates","A_Id":68665329,"CreationDate":"2021-08-05T09:26:00.000","Title":"Is it possible to show loading message in django admin when deleting objects?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I know how to do it in db shell, but I need to do it in the code in which file and where should I place print(len(connection)). Maybe I need to do something else?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":52,"Q_Id":68665866,"Users Score":0,"Answer":"Try to place it in your views, but be sure your querysets are evaluated.\nBut I would recommend you to use django-silk, it's much more powerful kit for your goal.","Q_Score":0,"Tags":"python,django,postgresql,django-rest-framework","A_Id":68666890,"CreationDate":"2021-08-05T11:39:00.000","Title":"Can't count PostgeSQL requests in django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"So this is a bit of a newbie question I think, but my issue is basically that I have created a program in python, where it takes an input and gives an output.\nI would like to create a localhost site, where you can write your input, then that will be used in the python function, and then the output will be shown on the website.\nI've created the 'website' and the python code, but currently, I am stuck in getting the input from html into python and then using that input on the function in python. How does this work? I've used flask so far, but can't make it work. I've created the 'website' and the python code.\nWhat is the easiest way of doing this?","AnswerCount":4,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":117,"Q_Id":68681264,"Users Score":0,"Answer":"one of the easiest way is to use DJANGO framework. DJANGO is designed to connect between the database (back-end), the front-end & the controller. but in your software you can ignore the database.","Q_Score":0,"Tags":"python,html","A_Id":68681549,"CreationDate":"2021-08-06T12:03:00.000","Title":"Easiest way to use a input from html into python code?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I created a custom user model extending AbstractUser. But when making migrations, many tables were added to PostgreSQL, I have only two models.\nI named my customuser : CustomUser and the other model Offers.\nThese tables were found in postgresql database:\napi_customuser api_customuser_groups api_customuser_user_permissions api_offers, auth_group, auth_group_permissions, auth_permission, django_admin.log\nand others\nNote that my django app is named : api.\nIs it normal?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":54,"Q_Id":68681562,"Users Score":0,"Answer":"Yes, this is normal. These tables are a part of Django's authentication and authorization feature.","Q_Score":0,"Tags":"python,django,postgresql,django-models,django-rest-framework","A_Id":68768456,"CreationDate":"2021-08-06T12:25:00.000","Title":"tables automatically added to database when creating custom user model in django","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a django website, where I can register some event listeners and monitoring tasks on certain websites, see an info about these tasks, edit, delete, etc. These tasks are long running, so I launch them as tasks in a asyncio event loop. I want them to be independent on the django website, so I run these tasks in event loop alongside Sanic webserver, and control it with api calls from the django server. I dont know why, but I still feel that this solution is pretty scuffed, so is there a better way to do it? I was thinking about using kubernetes, but these tasks arent resource heavy and are simple, so I dont think it's worth launching new pod for each.\nThanks for help.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":112,"Q_Id":68694614,"Users Score":0,"Answer":"Ideally, it is always a good idea to launch a new pod for a new event or job.\nYou can use cronjob in Kubernetes so they auto-deleted when work is done.\nIt's always better keep to separate and small microservices rather than running the whole monolith application inside the container.\nOn the management side using starting the new pod will be easy to manage also, also cost-efficient if you scale up & down your cluster as per resource requirement.\nYou can also use the message broker and listener which will listen to the channel in the message broker and perform the async task or event if any. Listen consider as separate pod.","Q_Score":1,"Tags":"python,django,asynchronous","A_Id":68694921,"CreationDate":"2021-08-07T17:16:00.000","Title":"How to manage long running tasks via website","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"i have cookie get from website .  how do i log that cookie using requests ?\ncookie=\"sb=Vma2X7D6JF_aBy6ESWdwm-OL; datr=Vma2X2YjSxJ-JzCD368WGfmL; locale=vi_VN; wd=1366x657; c_user=100029745455196;\"\nhow login with requests?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":28,"Q_Id":68706287,"Users Score":0,"Answer":"No, you can't login with cookie, you need login with credentials: username & password.\nIf you have logged in with credentials, you MAY use that cookie to bypass login step.","Q_Score":0,"Tags":"cookies,python-requests","A_Id":68711448,"CreationDate":"2021-08-09T02:45:00.000","Title":"How to login to a website that uses cookies?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a sagemaker endpoint that serves a Random Forest Classifier SKLearn model. This model predicts the kind of user someone is based on there interaction on a website. I have had two releases for this model.\nThe first model had 4 kinds of user: 'user-type-1', 'user-type-2', 'user-type-3', 'other'\nThe second release differed from the first in that there was more training data used and there were 10 types of user 'user-type-1', 'user-type-2', 'user-type-3', 'user-type-4', 'user-type-5', 'user-type-6', 'user-type-7', 'user-type-8', 'user-type-9','other'. To be more specific, in the first model many users got predicted as 'other' whereas in the second model many of these users were in one of the new categories.\nThe parameters for the random forest was the same in both models.\nQuestion: The second model uses a lot more memory than the first and I cannot figure out why. Both models are of similar size and the same number of calls to the endpoint are being made under the second release. Any ideas why I might need a larger instance with more memory in the second model than the first?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":41,"Q_Id":68709594,"Users Score":1,"Answer":"The values attribute of classification-type SkLearn tree models is essentially a data matrix (n_leaves, n_classes) (probability distributions associated with each leaf node).\nIn the first experiment this matrix has 4 columns, in the second experiment it has 10 columns - a 2.5X increase in size.","Q_Score":0,"Tags":"python,machine-learning,random-forest,amazon-sagemaker","A_Id":68710729,"CreationDate":"2021-08-09T09:15:00.000","Title":"Why does my sagemaker model need a larger instance for real-time inference","Data Science and Machine Learning":1,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"we start using pymqi instead of the java implementation.\nin java we had the option for 'QueueManager.close()'.\nis there an option to close the queue manager using pymqi?\nI saw that inside __ del __ function we close the queue manager and then call disconnect, what if I want just to close without disconnecting? (also, I don't want to set the disconnect_on_exit to False, just want to have an option to call only to close)","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":61,"Q_Id":68725681,"Users Score":1,"Answer":"What do you think that calling Close on a qmgr is meant to do? There's not really any such operation defined.\nIn the MQI, the only time you need to MQCLOSE an object is after you have MQOPENed it. And the only useful thing you can do with an MQOPEN on the qmgr object is to do an MQINQ against it. There's no QueueManager.open() function defined in this wrapper.\nIn the pymqi implementation, it looks like the QueueManager.inquire() function internally does an MQOPEN for the qmgr object and stashes the resultant hObj, It then does the corresponding MQCLOSE during the disconnect process. So that's why it doesn't need to be exposed.","Q_Score":0,"Tags":"python,ibm-mq,pymqi","A_Id":68728738,"CreationDate":"2021-08-10T11:07:00.000","Title":"QueueManager.close() using pymqi","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a string variable containing the HTML of an email.\nThe email contains Google drive attachments(links)\nI extract the attachment ID of the same and the Google drive attachments are always in the following format:\n'https:\/\/drive.google.com\/file\/d\/123456789\/view?\/usp=drive_web'\n123456789 being the file ID which I am trying to extract\nWhen there is only one attachment, I extract the ID using the below code:\nhtml_string.split('<a href \"https:\/\/drive.google.com\/file\/d\/')[-1].split('\/')[0]\nHowever, I do not know how to extrapolate this where there are multiple file IDs in the HTML string.\nI am looking to find a list of all the strings between\nthis substring - '<a href \"https:\/\/drive.google.com\/file\/d\/'\nand the next immideate '\/'\nexample:\na small sample HTML file looking like so:\n<a href ='https:\/\/drive.google.com\/file\/d\/123456789\/view?\/usp=drive_web' >attachment_1<\/a>random HTML text with multiple '\/'<a href ='https:\/\/drive.google.com\/file\/d\/987654321\/view?\/usp=drive_web' >attachment_2<\/a>\nNeed to extract the following list :\n['123456789','987654321']\nUsing a code that would work for any number of attachments","AnswerCount":3,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":55,"Q_Id":68741760,"Users Score":0,"Answer":"Once you fix your html_string.split call, you'll find it is returning a list whose elements (except for the first) each start with one of the numbers you want.","Q_Score":0,"Tags":"python,string,split","A_Id":68741918,"CreationDate":"2021-08-11T12:10:00.000","Title":"Find list of strings between 2 substring combinations in Python","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm writing a web crawler which extracts cleaned news articles text and metadata using diffbot api. It also makes a logging of an article title and text changes if their source were modified since last extraction. I need some automatic way to distinguish between erased and changed article: news portals mostly don't return 404 or other error codes in case if the post was deleted, often they send 200 and page with caption like \"Sorry, the article you looking for was removed\". So, I need a tool or approach to detect that kind of situations, preferably it should be something written in Python or something with web API. I am totally confused and have no idea where even to begin, so any reasonable suggestions widely appreciated.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":24,"Q_Id":68746689,"Users Score":0,"Answer":"you can:\n\nset a minimum length of an article to expect and treat any short text as a removed one\ncompare the Diffbot URI (a unique string) across two articles of the same URL to notice that their body has changed\n\nThese two in tandem should provide you with the diffing capability you seek.","Q_Score":0,"Tags":"python,web-scraping,diffbot","A_Id":68779089,"CreationDate":"2021-08-11T17:42:00.000","Title":"How to distinguish between removed and modified news article during crawling web pages?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Using PostgresSQL and Django, I dropped two tables from postgresql manually.\ndrop table ... \nThen I did make migrations and migrate.\nBut my tables are not recreated. Can not access from shell_plus. Also in this page, django return relation 'table name' does not exists.\nI want to makemigrations and migrate to create tables again.\nHow can I solve my issue ?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":320,"Q_Id":68771072,"Users Score":1,"Answer":"It depends on your current migrations files tree structure.\nIf your migration file containing CreateModel for those tables you deleted directly from PostgreSQL are the leaf nodes, i.e, there was no other migration file after that, you can simply delete the entry of the migration file in the django_migrations table and run migrate.\nFor example,\napp\/migrations\/0002_20210813_122.py is the file having commands for the creation of your tables, and this is the last node ( how do we know if this is the last file? so you just check if there's any other migration file in your project which has this filename 0002_20210813_122 under its dependencies field, if no then this file is the leaf node ). If it's a leaf node, go to django_migrations table in your database and delete an entry with value 0002_20210813_122 under column name and column app should be your app_name.\nNow run python manage.py migrate, the tables will be recreated.\nIf your migration file isn't a leaf node, then kindly share the tree structure of your migrations file, for us to help you out.","Q_Score":2,"Tags":"python,python-3.x,django,django-models","A_Id":68771842,"CreationDate":"2021-08-13T10:54:00.000","Title":"How to create table with migrate after drop table from postgresql in django?","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"This is the code that works for me in Jupyter Notebooks, but for some reason it doesn't in VSCode. I keep getting the error 'No module named 'requests''\nimport requests\nfrom bs4 import BeautifulSoup\nIs anybody able to help?","AnswerCount":2,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":644,"Q_Id":68806155,"Users Score":2,"Answer":"You have to install the requests module on your computer.\nType  pip install requests or python -m pip install requests in your command prompt","Q_Score":0,"Tags":"python,visual-studio-code,beautifulsoup,python-import","A_Id":68806430,"CreationDate":"2021-08-16T16:17:00.000","Title":"Hi, I am trying to import\/install requests and beautiful soup in VScode but the following doesn't work","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"Which form name could be used to extract \u201cview the audit log\u201d data for an incident? for example\uff0cI can successfully extract related data using form \u201dHPD\uff1ahelp desk\u201d\uff0chow to extract \u201caudit log\u201d data for an incident?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":83,"Q_Id":68816559,"Users Score":0,"Answer":"You can use \"HPD:HelpDesk_AuditLogSystem\" or \"HPD:Help Desk Audit Log\" form.\nRegarding indexed field OOTB there is only 1 index configured- Original Request ID (ID:450).","Q_Score":1,"Tags":"python,remedy","A_Id":69103056,"CreationDate":"2021-08-17T11:30:00.000","Title":"For Remedy api\uff0cwhats the form name for extracting the \u201cview the audit log\u201d data for an incident","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"getting below error\nimport jwt\nreturn jsonify({'token': token.decode('utf-8', algorithms=[\"HS256\"])})\nAttributeError: 'str' object has no attribute 'decode'\nPyJWT --> 2.1.0 and want to downgrade to 1.7.0\nWhere this issue I won't see.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":655,"Q_Id":68830889,"Users Score":0,"Answer":"use pip install PyJWT==1.7.0 in the terminal.","Q_Score":0,"Tags":"python,pip","A_Id":68831151,"CreationDate":"2021-08-18T10:44:00.000","Title":"How to downgrade PyJWT package version?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have created a website that scrapes multiple hockey websites for game scores. It runs perfectly on my local server and I am now in the process of trying to deploy. I have tried using pythonanywhere.com but selenium does not seem to be working on it. For any one who has deployed a website that uses selenium\/webdriver, what is the easiest\/best platform to deploy a website like this (it does not have to be free like pythonanywhere, as long as it is not too expensive, lol!). Thanks in advance","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":186,"Q_Id":68836594,"Users Score":0,"Answer":"You can use the AWS, GCP, or Digitalocean Linux servers. In this case, you first have to install chrome in Linux and then put the relevant version of the chrome driver in your project directory. Make sure to check the chrome version first and then put the relevant Chrome driver on your machine.","Q_Score":0,"Tags":"python,selenium-webdriver,web-deployment","A_Id":68837385,"CreationDate":"2021-08-18T17:05:00.000","Title":"Deploying web scraping website with selenium chrome","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm using MongoEngine with Django and I want to add a default filter on all queries that retrieve data, as well as some further logging.  MongoEngine has signals, but does not appear to have any signal for pre-query.  Am I missing something or can anyone recommend an elegant solution?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":28,"Q_Id":68838465,"Users Score":0,"Answer":"After some further research I can use the custom query sets provided by MongoEngine.","Q_Score":0,"Tags":"python-3.x,django,mongodb,mongoengine","A_Id":68839061,"CreationDate":"2021-08-18T19:45:00.000","Title":"Can I automatically add a filter to a MongoEngine query in Django?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"so I am making a small app, which searches the web via keyword in PyWebIO input() function and then shows results in put_table() and after the results are ready I need to start another search and instead of updating the page with F5 or browser, I want to create a put_button() which will update or get me back to input(), can anyone help, please?\nIm just not sure what should I put in onlick= attribute in this case.","AnswerCount":3,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":1171,"Q_Id":68851167,"Users Score":0,"Answer":"from pywebio.session import run_js\nput_button(\"ReUpload_images\",onclick = lambda: run_js('window.location.reload()'))","Q_Score":1,"Tags":"python,button,web-applications,refresh","A_Id":70953706,"CreationDate":"2021-08-19T16:03:00.000","Title":"PyWebIO button to refresh the page","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Ok, so I am trying to create a bot that displays information through an api, that uses https:\/\/[PROJECT_ID].firebaseio\/.json?shallow=trye&download=myfilename.txt , but it doesnt show all the information in the firebase, for instance this request will bring up one set of info, but then I change .json to something like \"music.json\" and then it gives entirely new data seperate to the other-, does anyone know how I could get all json file names to make this process alot easier?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":61,"Q_Id":68851922,"Users Score":0,"Answer":"Downloading the JSON from a given path in the database should give all data under that path. I just tested this on a database of my own, and got the entire database.\nIf you're only seeing some of the data, it might be caused by how you process the resulting JSON file.","Q_Score":0,"Tags":"python,database,firebase,api,python-requests","A_Id":68852078,"CreationDate":"2021-08-19T17:00:00.000","Title":"Python Requests Firebase - how to find all firebase json filenames?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to figure out whether it is possible to send a response back to the user from my python flask app to twilio, which is integrated with dialogflow.\nUsing Twilio and python only, and using messaging response I can send images back to the user.\nHowever, once I link the integration with dialogflow, I'm not sure what to pass back to dialogflow for it to recognise the image link.\nCurrently I am using fulfillment text to send text from python to Twilio\/dialogflow.\nPlease help.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":72,"Q_Id":68853865,"Users Score":0,"Answer":"Thanks for your reply. I have managed to solve this issue. For others experiencing a similar issue, using Client.messages.create function, it allows you to attach a file, using the mediaUrl parameter.","Q_Score":0,"Tags":"python,twilio,dialogflow-es","A_Id":68919702,"CreationDate":"2021-08-19T19:55:00.000","Title":"Dialogflow - sending media from python flask app to twilio","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm making an app that cleans-etc-search a CSV that is updated daily on a website. I was using an EC2 to download the file using python pandas.read_csv(url) to an EBS, but now I want to make the app serverless.\nI want to automate the download from         'https:\/\/sam.gov\/api\/prod\/fileextractservices\/v1\/api\/download\/Contract%20Opportunities\/datagov\/ContractOpportunitiesFullCSV.csv?privacy=Public' and upload it to S3 serverless. I'm not sure if is possible to do it serverless. Is there a better way to do it?\nThe file size is about 500 MB.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":241,"Q_Id":68877139,"Users Score":1,"Answer":"A lambda is exactly what you would want to use for this kind of scenario. Do the following:\n\nCreate the S3 bucket\nWrite the lambda function\nConfigure an IAM role to give lambda permission to write to the S3 bucket\nConfigure an EventBridge task to trigger the lambda function daily","Q_Score":0,"Tags":"python-3.x,amazon-web-services,amazon-s3,aws-lambda,aws-serverless","A_Id":68877185,"CreationDate":"2021-08-21T22:17:00.000","Title":"Is there a way to download a csv file from a website and upload it directly to Amazon S3 using Lambda?","Data Science and Machine Learning":1,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I installed the Scrapy framework. In scrapy docs, its says I should create a virtual env of Anaconda for Scrapy so I did it. It works in anaconda virtual env but in vscode, it gives me a warning\n\"Import \"scrapy\" could not be resolved\"\nEverything works in cmd of virtual env, but the editor gives me a warning\nWhat should I do?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":139,"Q_Id":68885142,"Users Score":0,"Answer":"First activate the virtual environment from cmd and then enter 'code .' to open the folder in VSCode. The python extension for some reason (at least in my case) does not recognize the virtualenv when using the python extension option in the bottom panel.\nAlso, if you are getting warnings from 'pylance' and are sure that you have the library installed, you can simply ignore the warning.","Q_Score":0,"Tags":"python,visual-studio-code,scrapy,anaconda","A_Id":68885478,"CreationDate":"2021-08-22T21:02:00.000","Title":"How to connect Visual Stuido Code to virtualenv or my problem about virtualenv?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"Iam working on a password reset API, which sends a mail to user with a link, which user need to click to reset password.\nWhen the API is called it sends a success response.\nBut I also would like to redirect the URL to a page where user can set their new password.\nI have successfully created the API to send mail and its giving success response as well, but i cant figure out how to redirect it.\nIt looks like the views could only return either a \"Response\" or \"redirect\".\nIs there a way where both Response and Redirect co-exists in a single view. Please share me any docs or ideas if available for such.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":60,"Q_Id":68886950,"Users Score":0,"Answer":"You can try HttpResponseRedirect by importing it from django.http.response","Q_Score":0,"Tags":"python-3.x,django-rest-framework","A_Id":68904677,"CreationDate":"2021-08-23T03:21:00.000","Title":"Return a response and redirect -- Django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a databricks notebook with some code (Python) to upload a file from dbfs to a SharePoint location. The notebook runs correctly when executed stand-alone, and the file is uploaded, but when I try to schedule it using ADF or a Databricks job, the command for the SharePoint upload gets skipped.\nOther commands are executed okay. I'm using O365 REST Python client for the Sharepoint upload. I'm not sure if my choice of library is causing this to happen.\nHas anyone faced something similar?","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":828,"Q_Id":68891544,"Users Score":1,"Answer":"From the info, is not clear if this in your code, but maybe it will help you or others with the mysterious \"Command skipped\" problem when running in job mode, as titled:\nThis will happen when a notebook runs another notebook using a run call, e g.,\n%run .\/subordinate_notebook\nand that subordinate notebook ends with\ndbutils.exit(\"Some message\")\nIn this situation, after that subordinate notebook exits, the remaining cells in the primary notebook are skipped.  The message \"Command skipped\" will show.\nNote, %run behaves differently from dbutuls.notebook.run()\nUsing\nresult_message = dbutuls.notebook.run(.\/subordinate_notebook)\nwill avoid this problem.\nRemoving the dbutils.exit(\"Some message\") will also eliminate the issue.\nI hope that helps.","Q_Score":1,"Tags":"python,sharepoint,azure-databricks,office365-rest-client","A_Id":69500974,"CreationDate":"2021-08-23T11:06:00.000","Title":"Databricks notebook command skipped only when scheduled as a job","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"When I install the latest version of anaconda distribution, it comes with flask version 1.1.2. However, I need to install flask version 2.0. How can I install flask version 2.0 (in the base environment) while keeping other existing packages installed such as sklearn and numpy, etc.?","AnswerCount":2,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":2150,"Q_Id":68897321,"Users Score":1,"Answer":"First do conda activate base,\nThen you can either do pip install flask==2.0.0 or conda install -c conda-forge flask==2.0.0. Both are okay as long as you do conda activate base first.\nYou should consider creating a new environment for your project and not mess with the base environment.\nFirst do conda create -n newname, then conda activate newname.\nThen you can do conda install -c conda-forge numpy pandas sklearn flask==2.0.0, you can also do pip install numpy pandas sklearn flask==2.0.0. You can install everything you need in one line.","Q_Score":0,"Tags":"python,anaconda,conda","A_Id":68897437,"CreationDate":"2021-08-23T18:21:00.000","Title":"How to update flask from version 1.1.2 to version 2.0 on anaconda?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to use slots in my intent, but when I try to fill one at the simulator, alexa will ignore the slot. I can start my intent without saying a slot value, but if I try to say a value Alexa fails to start the intent.\nI use a custom slot type, but I already tried a Amazon predefined. There I got the same issue.\nI tried with an other language. (first German, then English)\nAnd I use Python as SDK","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":36,"Q_Id":68918123,"Users Score":0,"Answer":"If you could share your configuration of intents, slot types and the test protocol from the simulator maybe the cause could be discovered. Otherwise the description of this problem is unfortunately too generic.","Q_Score":0,"Tags":"python,alexa,alexa-skills-kit,alexa-voice-service,alexa-slot","A_Id":69015771,"CreationDate":"2021-08-25T06:53:00.000","Title":"Alexa ignores slots","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I do not have experience in programming. Now I try to learn React. I found different APIs provided by companies for free. But this way I can practice only GET requests. Because, no one wants me to delete, add or edit on their servers :)\nSo my question is:\nHow front end developers can practice DELETE, POST and PUT requests?","AnswerCount":2,"Available Count":1,"Score":-0.0996679946,"is_accepted":false,"ViewCount":351,"Q_Id":68922428,"Users Score":-1,"Answer":"My suggestion is that you download a local server from MySql and then use your local server along with your IDE and make the requests in your own database","Q_Score":2,"Tags":"reactjs,python-requests,axios,frontend,rest","A_Id":68922463,"CreationDate":"2021-08-25T11:52:00.000","Title":"Where can I practice DELETE, PUT and POST requests. Do some free API exist that allow to do this?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am using Django to create my applications and I am uploading them to GitHub. I have like a \"history\" of migrations files and they are all there.\nIs it good practice to upload all migrations files to GitHub or do they need to be deleted?","AnswerCount":2,"Available Count":2,"Score":1.2,"is_accepted":true,"ViewCount":80,"Q_Id":68929885,"Users Score":2,"Answer":"You should push them.\nWhile they are all auto-generated, it may not make much sense, but eventually someone will create manual migration (eg. to add or correct some data, without changing models).\nIn that case, django is not aware of any changes, and won't generate migration on next makemigrations.\nAlso before pushing, I would strongly recommend checking if the migration can be successfully reverted.","Q_Score":2,"Tags":"python,django,github,migration","A_Id":68929977,"CreationDate":"2021-08-25T21:06:00.000","Title":"Is it good practice to add migrations files to the repository?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am using Django to create my applications and I am uploading them to GitHub. I have like a \"history\" of migrations files and they are all there.\nIs it good practice to upload all migrations files to GitHub or do they need to be deleted?","AnswerCount":2,"Available Count":2,"Score":0.0996679946,"is_accepted":false,"ViewCount":80,"Q_Id":68929885,"Users Score":1,"Answer":"Absolutely, all migration files should be committed. It's vital to ensure all users are running from the same set of migrations otherwise weird bugs could occur.","Q_Score":2,"Tags":"python,django,github,migration","A_Id":68930755,"CreationDate":"2021-08-25T21:06:00.000","Title":"Is it good practice to add migrations files to the repository?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"For a project (my own pet project) I am doing, I have an app called 'staff'. The ideas is 'staff' will contain list of all staff members in my organization. Now, they have to have an ability to login to the system and check what assets were assigned to them. The question is which built-in model (User, AbstractBaseUser, or AbstractUser) I should use for the 'staff' app? I've started with models.Model, however, I am thinking it might not be correct choice.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":54,"Q_Id":68933420,"Users Score":0,"Answer":"You can use the default User model that has a boolean field called is_staff. Then allow only user with is_staff==True to use the restricted system. You can change the value of is_staff in the admin interface. If you want a custom User model, subclass AbstractUser in the models of your staff app, then add this in your settings (if you want that your custom model is used for authentication): AUTH_USER_MODEL = 'AppName.CutomUserModelName'","Q_Score":0,"Tags":"python,django,django-models","A_Id":68933690,"CreationDate":"2021-08-26T06:19:00.000","Title":"Which Django model should be used for staff members?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have tried to create envelope on my linux pop os system using miniconda. When I activate it, I can install packages using pip, but when I run my django instance it doesn't find the modules.\nIf I type which python is shows the miniconda path correctly. I can look in the site-packages folder and see the packages installed.\nI've tried installing django-anymail and corsheaders and they are both not being found. It does find my locally installed apps.\nIf I use the command line and open python and then import, it does not recognize my modules installed in the virtual envelope either. I thought it was a problem with conda, so I also created an envelope using python's native method: python3 -m venv \nI have the same problem with it finding pip install site-packages.\nIs there a command I can run to show all available packages?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":34,"Q_Id":68958381,"Users Score":0,"Answer":"I hadn't realized I had aliased my python. Now it is working.","Q_Score":0,"Tags":"django,python-venv,miniconda","A_Id":68958701,"CreationDate":"2021-08-27T19:17:00.000","Title":"Linux python django site-packages not recognized in envelope","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have this table\n\n\n\n\nuser_id\ntitle\n\n\n\n\n1\nABCD\n\n\n1\nnull\n\n\n2\nEFGH\n\n\n\n\nI'am trying to get all the titles of every user id and convert null to an empty string.\nI tried using this\nSELECT IFNULL(title, '') FROM table WHERE user_id = 1\nBut it says that multiple rows returned, when I try 2 it returns a result.\nIs there a way to convert all null relut to empty string if ther more than 1 result? Thanks.","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":73,"Q_Id":68962195,"Users Score":0,"Answer":"You can use COALESCE() to replace NULL with an empty string.","Q_Score":2,"Tags":"python,mysql","A_Id":68962230,"CreationDate":"2021-08-28T07:23:00.000","Title":"MySQL Replace Null with an Empty String","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am quite new to web application development (Django). However, I have a bit of experience in working with html, css, and  python.\nI am developing an application where the user will upload documents as input and change the available parameters values and the application will generate a new document as a downloadable file. (Text editor: VS Code).\n(To get an intuition, consider the online pdf resizing applications as an example).\nI am building the application from scratch. The major issue is modifying the inputs and producing desired output.\nMy approach towards it is:\n\nCreate python scripts for the different major actions( As per our example case, create pdf_compression.py, merge_two_pdfs.py and so on).\nAsk the user to upload the required documents. Store the docs uploaded (only temporarily) and use them for further operations (with assumption that default sqlite3 will be sufficient).\nIn the webpage, add a button or a link (e.g. \"Compress\", \"Merge\") and embed the python script created in step1 (paste the script or add a link to its file location). That will perform the specific task when the button is pressed and generate the output.\nDownload the generated document.\n\nI have achieved till the step 2 in my task but am lost on how to achieve the \"3rd\" step. How should I proceed  ahead?\nAny suggestions( with code examples) are highly appreciated. I am open to any different approach also.\nUpdate\nAbout the application\nThe application does not need to serve users globally like google. It will be hosted through a server locally( or though an institutions' local server) and users having access to the server will be accessing it.(in other words it does not need to be https:\/\/www... It only needs to be http:\/\/ip_address\/url.)\nThanks in advance.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":149,"Q_Id":68979369,"Users Score":1,"Answer":"There's no need to embed your python scripts anywhere (or to use any javascript\/AJAX, as some of the comments suggest).  The simplest way to do \"step 3\" is as follows:\n\nWhen the \"Compress\"\/\"Merge\" button (or link) is pressed, send a request to the server.  Typically you'd use the URL to indicate which action(s) to perform.\n\nWhen the server receives the above request, generate the corresponding output file.  Any scripts that are installed on the server can be used to help make this file.  That said, I would recommend against writing separate scripts for each task.  Better would be to simply include the processing functions in your django application so the server can call them directly, without having to go through a command-line interface.  Or, if the functions would also be useful outside the context of a web server, they can be moved into their own general-purpose package.\n\nSave the generated file to the database.  This isn't necessary if the server will always run on just one machine, but it's still a good idea if for no other reason than making your code more future-proof.\n\nCreate a URL that will serve the generated output file to the client.\n\nPresent the user with a download link to the aforementioned URL.\n\n\nIn short, do all the processing on the server.\n\nYou may already be aware of this, but one concern with sqlite is that it does not allow more than one process to access the database at a time (roughly speaking).  So if there's any possibility that two people will be using your website simultaneously, don't assume that sqlite will be sufficient.","Q_Score":0,"Tags":"python,django,django-views","A_Id":69006232,"CreationDate":"2021-08-30T05:41:00.000","Title":"Add a custom button\/ tag and control its function using a python script in Django web application","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I cant activate virtual env in vs code. I tried same code in the cmd console is work but not in the vs code terminal.\n\"D:\\python\\djangoapp\\djangovenv\\Scripts\\activate.bat\" I write this code.\nI am using windows 10 pro","AnswerCount":3,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":2224,"Q_Id":68995862,"Users Score":0,"Answer":"You can also change your default terminal in VS Code, by pressing Ctrl+Shift+P and type Terminal: Select Default Profile and choose a terminal for your needs.\nI was using PowerShell and I wanted to activate virtual environment, but it always gave me an error, so I switch from PowerShell to Command Prompt, and now it works.","Q_Score":1,"Tags":"python,visual-studio-code,virtualenv","A_Id":69086039,"CreationDate":"2021-08-31T09:05:00.000","Title":"how to activate virtual env in vs code?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I cant activate virtual env in vs code. I tried same code in the cmd console is work but not in the vs code terminal.\n\"D:\\python\\djangoapp\\djangovenv\\Scripts\\activate.bat\" I write this code.\nI am using windows 10 pro","AnswerCount":3,"Available Count":2,"Score":1.2,"is_accepted":true,"ViewCount":2224,"Q_Id":68995862,"Users Score":0,"Answer":"yeah Its beacuse of terminal vs code was using powershell \u0131 changed with cmd","Q_Score":1,"Tags":"python,visual-studio-code,virtualenv","A_Id":69002555,"CreationDate":"2021-08-31T09:05:00.000","Title":"how to activate virtual env in vs code?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I successfully deployed to pythonanywhere free account per the tutorial. It worked through a number of lessons. Then I started getting host not allowed errors. I have messed around and gotten nowhere and now git is not longer connected and pulls do not work and bash does not automatically activate my virtual environment. Is there a way I can scrap everything and start over setting up the free account.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":21,"Q_Id":69002280,"Users Score":1,"Answer":"The easiest way to start again is to contact PythonAnywhere support and request an account deletion. Then you can register again for a new account.","Q_Score":0,"Tags":"pythonanywhere","A_Id":69011428,"CreationDate":"2021-08-31T16:28:00.000","Title":"djangogirls tutorial pythonanywhere application stopped working","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I've cloned my project from a GitHub repository and have been receiving the following error upon opening the project in Visual Studio:\nC:\\path\\to\\project\\test.pyproj : error  : The imported project \"C:\\Program Files (x86)\\Microsoft Visual Studio\\2019\\Community\\MSBuild\\Microsoft\\VisualStudio\\v16.0\\Python Tools\\Microsoft.PythonTools.Django.targets\" was not found. Also, tried to find \"Microsoft\\VisualStudio\\v16.0\\Python Tools\\Microsoft.PythonTools.Django.targets\" in the fallback search path(s) for $(MSBuildExtensionsPath32) - \"C:\\Program Files (x86)\\MSBuild\" . These search paths are defined in \"C:\\Users\\me\\AppData\\Local\\Microsoft\\VisualStudio\\16.0_e9ead341\\devenv.exe.config\". Confirm that the path in the <Import> declaration is correct, and that the file exists on disk in one of the search paths.  C:\\path\\to\\project\\test.pyproj\nI've tried changing the  declaration and have tried verifying that I have all of the proper Visual Studio workloads installed, but the problem persists. The project is a web application running Python using Django on the back end and JavaScript on the front end.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":223,"Q_Id":69004041,"Users Score":2,"Answer":"This issue can happen if there is something wrong with the  declaration or if a necessary Visual Studio component is missing. In this case there was simply a missing component. More specifically, while the Python development workload was installed, the optional \"Python web support\" component was not. To install this, open up the Visual Studio Installer, select \"Modify,\" open the \"Individual components\" tab, and search for \"Python Web Support\" and begin the install. It should be noted that this can also be installed as an optional component of the \"Python development\" from the \"Workloads\" tab.","Q_Score":0,"Tags":"python,django,visual-studio,web-development-server","A_Id":69004042,"CreationDate":"2021-08-31T18:58:00.000","Title":"Can't load Visual Studio project due to missing Microsoft.PythonTools.Django.Targets file","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"while iam creating a bot using botframework within a django application, i am not able to call the models of that appliction from the bot.i got the solution as put \"\"\"os.environ[\"DJANGO_ALLOW_ASYNC_UNSAFE\"] = Ture\"\"\" in the settings.py file.its works fine for me.But iam curious to know what is happening while i making this step.is it safe?","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":302,"Q_Id":69014224,"Users Score":0,"Answer":"I am pretty sure that you are allowing the django project to run asynchronously using the asyncio module and the async keyword.","Q_Score":0,"Tags":"python,python-3.x,django,django-models,botframework","A_Id":69014588,"CreationDate":"2021-09-01T12:59:00.000","Title":"what is happening on os.environ[\"DJANGO_ALLOW_ASYNC_UNSAFE\"] = \"true\"","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"while iam creating a bot using botframework within a django application, i am not able to call the models of that appliction from the bot.i got the solution as put \"\"\"os.environ[\"DJANGO_ALLOW_ASYNC_UNSAFE\"] = Ture\"\"\" in the settings.py file.its works fine for me.But iam curious to know what is happening while i making this step.is it safe?","AnswerCount":2,"Available Count":2,"Score":1.2,"is_accepted":true,"ViewCount":302,"Q_Id":69014224,"Users Score":0,"Answer":"setting DJANGO_ALLOW_ASYNC_UNSAFE to true is not a recommended way.it may cause data loss .so I change the function as an API end-point and call it,instad of calling the function. its works for me","Q_Score":0,"Tags":"python,python-3.x,django,django-models,botframework","A_Id":69176746,"CreationDate":"2021-09-01T12:59:00.000","Title":"what is happening on os.environ[\"DJANGO_ALLOW_ASYNC_UNSAFE\"] = \"true\"","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a Vue, Django integrated project. I hosted the Vue project on Netlify and the Django project on Heroku. A python script (integrated into Heroku) is called on certain buttons which extract data and posts this to the Django API to be viewed on the frontend.\nI have trained a font type for my pytesseract OCR script. However, when i run it on Heroku, it seems like i can only use the 'eng' (normal font) as 'language' for my pytesseract image_to_string function. If I have the .traineddata file of the font type that I want to use, how can I use this file within the pytesseract functions? I can call the individual file, but I need the right TESSDATA_PREFIX as well. Does someone know how to deal with this?\nThanks!","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":34,"Q_Id":69014331,"Users Score":0,"Answer":"I had the same issue. It is olved by setting TESSDATA_PREFIX Config Var to a custom directory and inserting all .traineddata files to that directory.","Q_Score":0,"Tags":"django,heroku,fonts,tesseract,python-tesseract","A_Id":71949469,"CreationDate":"2021-09-01T13:05:00.000","Title":"Pytesseract - using .traineddata file on hosted server (Heroku)","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am using odoo13 I am developping my own application and I need to add supplier attribute from res.partner to a class . the relation is many2one and I want just the list of suppliers not all the entries of res.partner\nthis is what I tried in class declaration :\n\"partner_id = fields.Many2one('res.partner', string='Supplier', supplier_rank='1', required=True)\"","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":26,"Q_Id":69026533,"Users Score":0,"Answer":"in xml: <field name=\"partner_id\" string=\"Fournisseur\" domain=\"[('supplier_rank','=','1')]\"\non_change=\"on_change_partner(partner_id)\"\/>\nclass py : \"partner_id = fields.Many2one('res.partner', string='Supplier')\"","Q_Score":0,"Tags":"python,model,odoo-13","A_Id":69043836,"CreationDate":"2021-09-02T08:15:00.000","Title":"add a supplier attribute from res.partner to another table in odoo13","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"guys, I create a shopping cart in Django with using session, but after logout, it removes my cart, and also I cannot see my cart on another computer . so please help me","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":152,"Q_Id":69046707,"Users Score":1,"Answer":"You cannot and should not attach your cart to a session for the following reasons.\n\nsessions expire, so whats happens to you cart? (gone with the wind...)\n\nDjango creates new sessions per site visitor. This implies that two different devices can never have the same session\n\n\nYou should consider attaching carts to users instead.","Q_Score":0,"Tags":"python,django,session,cart,shopping","A_Id":69047125,"CreationDate":"2021-09-03T14:39:00.000","Title":"(DJANGO) How to save session for user shopping cart in to restore session in next login?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to deploy a simple web app consisting front end reactjs and backend python for the api routes\nI want to allow api reqeusts by reactjs only, that will be deployed on the same server\nIn other words I do not want others to be able to e.g use postman to call the api\nIs this possible? I do not wish to add authentication at this point as it's a really small project","AnswerCount":2,"Available Count":1,"Score":0.0996679946,"is_accepted":false,"ViewCount":345,"Q_Id":69056323,"Users Score":1,"Answer":"One option is to have flask listen on 127.0.0.1 and then only local users will be able to connect to the api. Another option, you can bind the flask app on a unix socket file (instead of a ip:port) and set the file permissions for that socket so that only the users you want will be able to access it.","Q_Score":0,"Tags":"python,flask,flask-restful","A_Id":69056606,"CreationDate":"2021-09-04T14:42:00.000","Title":"python flask limit connection to requests from local network only?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Please, I need clarification on something.\nLet's assume I have a dataset from two different website\n\nJaka website\nMaka website\n\nThe first website has a different dataset that contains different information.\nLet's assume the Jaka website has a dataset named blood dataset, hands-dataset, legs-dataset, and eyes dataset. Let's assume the Maka website also has some datasets called fingers-dataset, stomach-dataset, eyeball-dataset, toes-dataset, and kneel-datasets.\nLet's assume that the largest of these datasets is fingers-dataset from the Maka website.\nI used only this fingers-dataset to train LINEARSVC and saved the model.\nI am then using the same model to predict the outcome of all other datasets.\nThe model is performing differently on all Jaka website's datasets, but giving the same result on the Maka website's datasets.  I am solving this using a regression method.\nThe problem here is that I am getting the same result for all the datasets on Maka's website. I am thinking maybe it is because I used one of the datasets on that website to train the model.\nPlease, am I missing something here?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":21,"Q_Id":69062210,"Users Score":0,"Answer":"Your train and test data should be from same I.I.D (Independent and\nIdentically Distributed). I.e. each data point (both test and train)\nshould be independent of one another and all the data point should be\nfrom same distribution.\nThere is a very high possibility that the underling datasets you are using (for train and test) are not from the same distribtu9ion.","Q_Score":0,"Tags":"python,regression,svm","A_Id":69062332,"CreationDate":"2021-09-05T09:40:00.000","Title":"LinearSVC output","Data Science and Machine Learning":1,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm currently trying to create a spider which crawls each result and takes some info from each of them. The only problem is that I don't know how to find the URL that I'm currently on (I need to retrieve that too).\nIs there any way to do that?\nI know how to do that using Selenium and Scrapy-Selenium, but I'm only using a simple CrawlSpider for this project.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":31,"Q_Id":69063931,"Users Score":0,"Answer":"You can use:\ncurrent_url = response.request.url","Q_Score":0,"Tags":"python,scrapy","A_Id":69064957,"CreationDate":"2021-09-05T13:44:00.000","Title":"Is there any way to find the URL that you are currently scraping?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have found a Django project who's purpose is to send emails to subscribers and it is divided into several applications but I view this project as an application and want to include it in my own project. What are the minimal steps to convert that project into an app ?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":86,"Q_Id":69067626,"Users Score":2,"Answer":"Create a new app inside your existing project, then create a unique file for each resource type by grouping the target project's app files together (e.g. put all models in one file). To create a unique urls file you need to use absolute paths. For templates create new folders in your static dir or inserts them in existing one (but folder structures must match). For migrations put them in a unique folder inside your app. You need to update your project settings to match those of the target project (especially for custom settings). Update dependencies to contain those of the target project. Depending on the target project you will also need some redesign.\nOtherwise you can extract only the resources you are interested in and use them in your project with some modifications.","Q_Score":2,"Tags":"python,django","A_Id":69071767,"CreationDate":"2021-09-05T22:29:00.000","Title":"How can I convert a Django Project into a Django application inside my own project?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"i made a python flask web application that lists database entries.\nThere is a form to add a new entry. It uses db.session.add() and then db.session.commit()\nAfter adding a new entry, it doesn't appear in the web applications list, while all other entries are listed.\nWhen I look for the entry in the MySQL Database via SELECT ..., I can see that the entry exists.\nAfter I restart MySQL via sudo service mysql restart, the new entry appears in the web application.\nDo You have a Idea why this happens?\nThank You.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":52,"Q_Id":69072108,"Users Score":0,"Answer":"db.session.add() only creates the db request in memory.\nYou need to call db.session.commit() to persist the changes.","Q_Score":0,"Tags":"python,mysql,flask,sqlalchemy","A_Id":69072488,"CreationDate":"2021-09-06T09:17:00.000","Title":"SQLAlchemy does not find new entries","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm trying to write a code which collects data from website using REST API.\nThere is an authentication and I correctly send POST request (let's name it LogIn) with credentials and correct response. Then, I would like to call another POST command (let's name it GetData), but I get \"Unauthorized: Access is denied due to invalid credentials.\"\nI'm using python requests.session() to keep all cookies and I've noticed something wired. If I log in the web browser and replace ASP.NET_SessionId cookie in my python GetData request (like that: self.session.cookies.update({'ASP.NET_SessionId': 'XXX'})) the response is correct.\nI've checked and python LogIn request also generates ASP.NET_SessionId cookie but somehow it is not valid and only if I copy it from browser it is correct.","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":55,"Q_Id":69074443,"Users Score":0,"Answer":"You do not keep\/send the authentication cookie from login to the next call.\nWhen you call the login page the login is answer with an authentication cookie, and maybe with a session cookie.\nOn the next call you have to provide this two cookies to been able to get the data - the one is assure that you have the permissions to read them","Q_Score":0,"Tags":"python,asp.net,api,python-requests,rest","A_Id":69075954,"CreationDate":"2021-09-06T12:19:00.000","Title":"ASP.NET_SessionId access denied","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm trying to write a code which collects data from website using REST API.\nThere is an authentication and I correctly send POST request (let's name it LogIn) with credentials and correct response. Then, I would like to call another POST command (let's name it GetData), but I get \"Unauthorized: Access is denied due to invalid credentials.\"\nI'm using python requests.session() to keep all cookies and I've noticed something wired. If I log in the web browser and replace ASP.NET_SessionId cookie in my python GetData request (like that: self.session.cookies.update({'ASP.NET_SessionId': 'XXX'})) the response is correct.\nI've checked and python LogIn request also generates ASP.NET_SessionId cookie but somehow it is not valid and only if I copy it from browser it is correct.","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":55,"Q_Id":69074443,"Users Score":0,"Answer":"Is it a feasible short-term workaround to manually append headers from the Login response onto subsequent requests, rather than using requests.session()?","Q_Score":0,"Tags":"python,asp.net,api,python-requests,rest","A_Id":69075385,"CreationDate":"2021-09-06T12:19:00.000","Title":"ASP.NET_SessionId access denied","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm planning to deploy my Flask services with Gunicorn WSGI Server. However I could not get one part. I have a main Flask app and that main app calls the other Flask apps. My main purpose for using Gunicorn is to handle the incoming multiple\/simultaneous requests by Gunicorn workers. Do I have to implement a different Gunicorn Server for each of the Flask apps so that they will also have multiple workers in case of incoming simultaneous requests, or there is no need for that? Thanks in advance.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":275,"Q_Id":69091695,"Users Score":0,"Answer":"When you implement the a single Flask server app with all of its endpoints, each gunicorn worker that is spawned for the app will be able to serve requests to all endpoints. You don't have to implement the same logic multiple times. Each endpoint can be served by multiple\/all of the workers at the same time (unless you prevent it by yourself with locks etc..).","Q_Score":0,"Tags":"python,flask,gunicorn,flask-restful","A_Id":69100228,"CreationDate":"2021-09-07T16:27:00.000","Title":"Using Gunicorn in front of multiple Flask microservices","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm working on a mobile application where the backend is done by Dango but all the authentication and real-time database are in firebase\nis there any way to integrate a Django admin with firebase instead of using firebase admin?\nif not, can firebase admin be used with python to create an admin role and has the same permissions which Django gives to admin? and how to introduce the created role if possible to Django?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":136,"Q_Id":69092080,"Users Score":0,"Answer":"One of the many beauties of Django is the admin interface, which I use all the time. Django relies on certain types of databases - namely relational databases. With NoSQL databases, you lose Django admin. If you want to Firebase with Python, I would recommend Flask.","Q_Score":0,"Tags":"python,django,firebase","A_Id":69093961,"CreationDate":"2021-09-07T16:59:00.000","Title":"Integrating Django Admin with Firebase","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a Convolutional Neural Network model made in tensorflow 2.6. I wish to deploy it in free, Heroku plan. But Heroku free plan, only allows a maximum slug size of 500MiB. Is there any way I can host the model in the Heroku free plan?\nMy end goal is to build an API, which when passed with an image in base64 format, returns a label.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":56,"Q_Id":69104320,"Users Score":0,"Answer":"I found a solution.\nUse tensorflow-cpu.\ntensorflow-cpu is much smaller than tensorflow and can fit into the maximum permissible size of Heroku for free, which is 500MiB.","Q_Score":0,"Tags":"python,tensorflow,heroku","A_Id":69123222,"CreationDate":"2021-09-08T13:48:00.000","Title":"How to deploy a tensorflow model in Heroku, within the free slug size available of 500MiB?","Data Science and Machine Learning":1,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm trying to deploy my Django app I've split the settings.py and put in a settings folder. Now before I run my server, I must first this\nset DJANGO_SETTINGS_MODULE=src.settings.dev\nHow can I make the above command to be automatic so I don't have type it every time before running the server .thanks","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":27,"Q_Id":69125389,"Users Score":0,"Answer":"edit the below line in your manage.py for example in my case was\nos.environ.setdefault('DJANGO_SETTINGS_MODULE', 'src.settings.dev')","Q_Score":0,"Tags":"python-3.x,django,django-views,django-templates,django-deployment","A_Id":69125432,"CreationDate":"2021-09-09T22:35:00.000","Title":"setting up django for deployment","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a backup server from which data is coming and that data is transformed and loaded into snowflake(DB) using the Azure data factory. So here I need to validate the data between the backup server and snowflake whether the data is moving to snowflake same or not. The data which is moved to snowflake may be more or less. Manually we can check but. I need to do automate data validation and find fewer data automatically by giving any parameters. Are there any approaches using ADF?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":96,"Q_Id":69127258,"Users Score":0,"Answer":"I was first perplexed by its name, believing it would assist me in validating my incoming source data files against the required data types of the columns inside those files. The objective of the Validation activity job, on the other hand, is to offer greater control over the execution of your ADF pipeline; it acts as a traffic control for your ADF sequence of activities.\nYou can create a validation pipeline in ADF which is going to count of rows and source and sink and validate using IF activity.\nAlternative\nWrite your own code using Azure functions to see data between source and sink.","Q_Score":0,"Tags":"python,azure,azure-data-factory","A_Id":69188030,"CreationDate":"2021-09-10T04:25:00.000","Title":"Automate Data Validation from source and destination using ADF","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"What is the best way to create a UML class diagram for a Django project that uses the MVT design pattern, especially when using the function-based views in the project? Is it correct to treat views as classes even if they're function-based ones? I have a mix of class-based and function-based views, so the option looks convenient, but I'm not sure if that's correct from a technical perspective. Also, can I treat the templates as the classes?","AnswerCount":2,"Available Count":1,"Score":0.0996679946,"is_accepted":false,"ViewCount":493,"Q_Id":69143360,"Users Score":1,"Answer":"UML from django model  - pls check this\n\nhttps:\/\/simpleit.rocks\/python\/django\/generate-uml-class-diagrams-from-django-models\/","Q_Score":0,"Tags":"python,django,django-views,uml,class-diagram","A_Id":70153721,"CreationDate":"2021-09-11T13:16:00.000","Title":"Documenting UML class diagrams for a Django MVT project","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Is there a difference between saving the Keras model with the extension .h5 and extension .hdf5?\nIn other words, is there a difference between those two lines of code model.save('model.h5') and model.save('model.hdf5') assuming that I have a Keras model named model in my code?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":315,"Q_Id":69156551,"Users Score":0,"Answer":"An H5 file is a data file saved in the Hierarchical Data Format (HDF). Files saved in the HDF5 version are saved as an H5 or HDF5 file.\nThe extension is used so that people and applications can identify the file format from the name, so either can be used.\nIt is the same as there are multiple .jpeg, .jpg, etc. in jpeg format image files.","Q_Score":0,"Tags":"python,keras,tf.keras,hdf","A_Id":69318424,"CreationDate":"2021-09-13T02:12:00.000","Title":"What is the difference between saving Keras model with extension .h5 and extension .hdf5?","Data Science and Machine Learning":1,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Is there a cookie setting I can add to the session so that websites don't show those annoying \"please accept our cookies\" popups? Or are they all unique and there's no way to make a generic cookie value for it?","AnswerCount":1,"Available Count":1,"Score":-0.1973753202,"is_accepted":false,"ViewCount":179,"Q_Id":69175037,"Users Score":-1,"Answer":"Robot Framework does not support it. You gonna need to develop your own Key Work or lib in order to perform it","Q_Score":0,"Tags":"python,cookies,robotframework,session-cookies","A_Id":69183185,"CreationDate":"2021-09-14T09:12:00.000","Title":"Robot Framework - How to skip the \"please accept cookies\" popup?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I created a web application using django that utilizes a FedEx API so that a user can create shipments through my website. The response of this FedEx API call is in xml format that contains a lot of data such as; was the request a success or failure, error messages, error codes, tracking number (if successful) etc. I am using django background tasks to make these API calls and once a process finishes I am unable to retrieve the response from the API call.\nI was thinking to maybe store the xml response in a file and feed it to the user but before I do that I wanted to find out if there is a better way.\nI also would like to know the best practice for API responses in general, like does the user need to see the entire response and if so how can I display it to them in the best way possible.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":69,"Q_Id":69183017,"Users Score":0,"Answer":"I would recommend using Django\/Celery\/RabbitMQ for your background tasks pulling from the FedEx API. I would break each section into the smallest isolated separated steps  possible to make debugging the data flow easier (debugging different data cases can be really hard)\n\nCreate DB representation of API request that needs to be made to FedEx\nStore the response of the API request that was made as S3 file or in DB blob (update previous API call as processed)\nParse the Response of the API request and store the normalized response data components in your DB (update previous response as processed)\nPresent normalized request response data to user if successful and necessary\n\nBreaking it apart like this allows you to see exactly what went wrong at each step and why it went wrong; IE what if the initial request was invalid, what if the FedEx API returned an invalid resp, what if your parser didn't know how to parse a valid FedEx API response, etc.\nDoing it this way allows for easier debugging and scalability long run.","Q_Score":0,"Tags":"python,django","A_Id":69185806,"CreationDate":"2021-09-14T18:36:00.000","Title":"How to Feed User a Django Background Task Response","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"folks.\nI have a simple Django project.\nThere's an app that receives data, processes it, and stores it in a DB.\nOf course, I'd like to show this data. To me, it looks more like a separate Django app.\nBut then comes the question: What should I do with models? It looks really stupid to copy it but at the same time, it's kinda wrong to use models from one app in another.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":27,"Q_Id":69183669,"Users Score":1,"Answer":"I would not separate the display of one app's models into another app; keep it in the same app. Use views and templates in the same Django app to display the data.\nIf you need to display it in a really special way (intense graphing, etc) then find a display app and reference the display app in your current app.","Q_Score":0,"Tags":"python,django,django-models","A_Id":69185825,"CreationDate":"2021-09-14T19:39:00.000","Title":"Is it okay to use models from one Django app in another?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am working on a project in which through the boto3 SDK I need to obtain the information from Alternate Contacts and Contact Information.\nIs there a method that do this with boto3? Thanks!","AnswerCount":3,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":303,"Q_Id":69194410,"Users Score":0,"Answer":"Yeah I've run into that problem many times before. When dealing with large scale organizations this is kindof a bottleneck sometimes. It's currently not possible to automate easily.\nSome corporates I've seen get around this by tagging account's with a 'BillingContact' and 'Technical Contact's etc. and build their own logic around those tags using lambda's. This doesn't help in letting account's owners receive messages from AWS directly, but it gives some possibilities to email account owners using your own logic to have some form of governance.","Q_Score":0,"Tags":"python,amazon-web-services,boto3,aws-billing","A_Id":69199196,"CreationDate":"2021-09-15T13:46:00.000","Title":"How to get Contact Information and Alternate Contact in AWS\/Billing using boto3?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a question that bothers me.\nWhat is better to use in django views? Classes or defs? And if both, so when using it? When to deviate from a given method.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":27,"Q_Id":69199514,"Users Score":0,"Answer":"for readability flow of your app task use function base view","Q_Score":0,"Tags":"python,django,function,class,view","A_Id":69200741,"CreationDate":"2021-09-15T20:38:00.000","Title":"What is better to use Class of Def in views","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"We have a scheduler service which gets spawned at the beginning of the program.\nWe moved our code base from python2 to python 3.\nWe are monkey patching with gevent before calling the scheduler thread.\nOnce the gunicorn starts with let's say two workers.\nThe scheduler_service run() method's code is forked and is served by all 3 threads in parallel.\nWe want only one thread to handle it. What could be the issue as with python2 and without monkey patching it was working fine?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":22,"Q_Id":69212861,"Users Score":0,"Answer":"This is exactly how it should be behaving.  You need a singleton reference, shared among threads that allow for a master to take priority.  Usually a database model that tracks the current online threads, with a checkin, and a failover logic if one no longer checks in as master.","Q_Score":0,"Tags":"python-3.7,gunicorn,gevent","A_Id":69319656,"CreationDate":"2021-09-16T17:34:00.000","Title":"Custom Scheduler thread after launching is being run parallelly by main thread and workers of gunicorn","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"What is a good way to compare new data with old data which is updated everyday with Django ORM? Basically I have a scraper which fetches hackathons everyday (basically just a celery task) and I want the newest to be unioned it with my master database which has the latest fetched hackathons from yesterday. I don't want to destroy my master database and then just upload everything that I just fetched since that seems wasteful.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":70,"Q_Id":69214805,"Users Score":0,"Answer":"This more seems data comparison and no need to save celery task in db.\nIdeal use case to save celery task in db is when that task it self needs to be scheduled.\nFor data comparison you can make use of hash (MD5, SSA1 etc). This will speed up the data comparison.\n\nfor existing records in db, create one column to store hash of that entire record. use algorithm of your choice  MD5, SHA1, SHA224, SHA256, Snefru etc to hash.\nwhen new data is received\/processed by celery task, create a hash of that record too.\nnow compare this hash created in 2nd step with hash of all exiting records.\nif there's a match found then data already exists in master.","Q_Score":0,"Tags":"python,django,postgresql,celery,psycopg2","A_Id":69252435,"CreationDate":"2021-09-16T20:30:00.000","Title":"How to save celery task to a temporary db which will then be updated to the master db","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Read The Docs seems to be stuck on an old version of my docs and whatever I do in won't update. I even tried deleting the project from Read The Docs completely and reimporting the github repo - it still shows the old version. The builds show as successful.\nTo test this, I've changed a bit of text on the README.rst. It won't update. I've tried searching through all my project files for the old text, which is showing in the Read The Docs site - it doesn't exist in my files anywhere anymore so where is Read The Docs even getting it from?\nIt isn't my cache or anything either. I've cleared the cache, loaded the page on Private windows, different browsers and even a different computer and still I get the old docs.\nAny ideas? I really have no idea what to try.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":205,"Q_Id":69220691,"Users Score":0,"Answer":"It can take a while (an hour or two) for the change to propagate to the website. Probably some caching being done by Cloudfare or something.\nYou can check the latest changes by clicking in the bottom left hand corner of the Documentation webpage and Downloading the html version - that seems to propagate immediately, probably it is a direct download from Read The Docs' servers.","Q_Score":0,"Tags":"python,python-sphinx,read-the-docs","A_Id":69224927,"CreationDate":"2021-09-17T09:04:00.000","Title":"Read The Docs Sphinx build not updating","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I work on some gov project and got task to make an opportunity to track if operator(user) uploaded file using scanner or USB drive. I find it's possible if I could get file path before uploading it to server. Is it real in Django?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":86,"Q_Id":69237811,"Users Score":0,"Answer":"It is not possible to achieve this in Django as your server does not run on the client machine and thus doesn't have direct access to the file system.","Q_Score":0,"Tags":"python,django","A_Id":69238044,"CreationDate":"2021-09-18T19:26:00.000","Title":"Django - get file path from client pc","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I made a FastAPI API that is used by some other back-end and not directly by a front-end. I'm trying to add a security layer with oAuth but all I'd need is a unique access token that this other API would use every time it wanted to consume mine. I haven't seen anything like this on the documentation and I was wandering if this is possible without having to define a user-login model.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":31,"Q_Id":69250702,"Users Score":0,"Answer":"I figured that instead of using any oAuth library I would just implement this solution myself by adding a function to every endpoint I wanted to secure that requires a pre made unique token. By using hashlib library I can choose any hashing algorithm I want to check if the hashed string matches the defined token so the actual password doesn't live in the code.","Q_Score":0,"Tags":"python,oauth-2.0,fastapi","A_Id":69255594,"CreationDate":"2021-09-20T07:42:00.000","Title":"How to create an oAuth unique token for back-end connection","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I create a web application using Django for the back-end and React for the front-end. I have three input forms on my HTML page, which I create with react. I need to send this data to MySQL.db and processing using .py script. Can you explain, how can I send data from react to django","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":204,"Q_Id":69251869,"Users Score":0,"Answer":"With react, we mostly fetch data and show it as HTML, and that data is fetched by a web-based API, which just looks like a URL. so if you want to send data to Django must create an API with Django-rest-framework and it's very easy. You will need to send data to that API and it will add that to your database.","Q_Score":0,"Tags":"javascript,python,reactjs,django","A_Id":69356439,"CreationDate":"2021-09-20T09:14:00.000","Title":"Processing data from React.js form with django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have an input field where the will customer add a number for buy membership then will get forms according to numbers 1,2, or 5 then will show 1,2, or 5 forms with input fields in which will add data.\nHow can add this type of functionality? Because I'm a beginner in python Django. Thanks\nFor example:\n\ncustomer will come to the site and click on buy membership\n\nthe first page will How many Memberships do you want to buy?  ==> input Field in which add 1,2, or 5\n\nbased on how many members enter a show a page to collect information of members\n\n3rd step collect customer\/parent information","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":34,"Q_Id":69303885,"Users Score":0,"Answer":"I dont know how much you've progressed in this, because your question is not exactly straight forward. However, I'll give you a general guideline on how to make something like this work. you can find out how to do each step by searching in django docs.\n\ncreate a form (e.g. MembershipNumForm). This form will have a single field, which is the number of memberships.\nWrite a view that gets this form's data via post and redirects to some 'MembershipDetails page.\nCreate another form (e.g.MembershipDetailsForm), which gets membership details.\nWrite the MembershipDetails view. this view gets a number in its url (e.g. \/membershipdetails\/2). you pass this number along with MembershipDetailsForm to your template (or whatever front you're using). In this example I used 2, you could use whatever nuumber was passed to the url.\nIn the template, use a for loop to repeat the form based on the number you gave to the template.\n\nThere are a lot of ways to make this better, but since your question is vague I gave something general to work with. Hope it solves your problem :)","Q_Score":0,"Tags":"python,django","A_Id":69305882,"CreationDate":"2021-09-23T16:39:00.000","Title":"Django - How can add multiple forms according to input enter number or with click add more button","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Suppose I build a back end with node.js.\nI also build a dashboard that shows analysed dataset with python (seaborn or matplotlib etc).\nthe front end is built with react.js\nIs it possible to integrate the python codes with the JavaScript codes so that the dashboard is visible on the website?","AnswerCount":3,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":126,"Q_Id":69312277,"Users Score":0,"Answer":"I suggest you can use Docker or containerd to run different languages on one machine. The services visit each other by their names though http restful api. Use nginx for routing different url.","Q_Score":0,"Tags":"javascript,python,node.js,multithreading,dashboard","A_Id":69312741,"CreationDate":"2021-09-24T08:59:00.000","Title":"Is it possible to keep node.js and python codes together?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Suppose I build a back end with node.js.\nI also build a dashboard that shows analysed dataset with python (seaborn or matplotlib etc).\nthe front end is built with react.js\nIs it possible to integrate the python codes with the JavaScript codes so that the dashboard is visible on the website?","AnswerCount":3,"Available Count":2,"Score":0.1325487884,"is_accepted":false,"ViewCount":126,"Q_Id":69312277,"Users Score":2,"Answer":"It depends on how you build your dashboard. You can try using react-chartjs and get data from running your python script on back end.","Q_Score":0,"Tags":"javascript,python,node.js,multithreading,dashboard","A_Id":69312405,"CreationDate":"2021-09-24T08:59:00.000","Title":"Is it possible to keep node.js and python codes together?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"i make a class in a py file in my django project. In this i need the logged in person's username. in views.py file, every function i pass request perameter, so that i could easily get the logged username. but in other py file i make a class, and there how can i get the logged user??? Thanks.\nin class, i can not pass the request perametar. so i can not call requset.user. how can i get the logged user???","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":35,"Q_Id":69332392,"Users Score":0,"Answer":"You may use sessions to get the logged in user as follows: request.session.get('_auth_user_id')\nIn your class you may pass the request as an argument.","Q_Score":0,"Tags":"python,django","A_Id":69332424,"CreationDate":"2021-09-26T06:31:00.000","Title":"Without passing Request parameter How Can i get the Logged in Username in django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I defined a variable in urls.py which will be updated every 10 seconds from views.py. I am trying to access this variable in cron.py, I need the updated value when I called from cron.py but I am getting the intialised value but not the updated one.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":16,"Q_Id":69343215,"Users Score":0,"Answer":"You can't do that. That variable is read only when Django is initializing.\nPlus servers normally use multiple Django workers and each one of those will have a different instance for that variable.\nYou need to use something like Redis to save the variable to RAM or disk(if you need persistance).","Q_Score":0,"Tags":"python,django,cron","A_Id":69343283,"CreationDate":"2021-09-27T08:11:00.000","Title":"Access a variable in Django cron.py from other modules","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"So I have a Flask API running through a Systemd service running on a piece of hardware that's battery powered (to control other hardware). I have a bunch of state that I need to save and in case something goes wrong, like a power outage, I need to be able to restore that state.\nRight now I save the state as JSON files so I can load them (if they exist) on startup. But I'd also need to be able to remove them again in case it gets the shutdown signal.\nI saw somewhere I could set KillSignal to SIGINT and handle the shutdown as a keyboard interrupt. Or something about ExecStop. Would that be enough, or is there a better way to handle such a scenario?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":34,"Q_Id":69372881,"Users Score":0,"Answer":"If you look at the shutdown logs of a linux system you'll see 'sending sigterm to all processes... sending sigkill to all processes'.  In a normal shutdown processes get a few second's grace before being killed.  So if you trap sigterm you can run your shutdown code, but it had better be over before the untrappable sigkill comes along.  Since sigterm is always sent to kill a running process, trapping it is indeed the Right Way (TM) to cleanup on exit.  But since you are using systemd services you could also cleanup in the service.","Q_Score":0,"Tags":"python,systemd,shutdown","A_Id":69372997,"CreationDate":"2021-09-29T08:24:00.000","Title":"Python handling system shutdown, but not crash (Or how I would like to restore state in case of something unexpected)","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"API 1 in container 1 --> API 2 in container 2\nI have a simple FastAPI REST API (API 1) in one docker container invokes another simple FastAPI REST API (API 2) in another docker container. The call is via requests package.\nWhen I perform Apache Benchmark test on API 2 (ab -n 10000 -c 500 http:\/\/[url of API 2]) , the (RPS) request per second is around 4600. However, when I perform the the same apache benchmark on API 1 (ab -n 10000 -c 500 http:\/\/[url of API 1]), the RPS drops to around 1350 despite API 1 is just a simple requests.post call to API2 without any processing logic. I do not understand why the nested call reduce the RPS so drastically\nAPI 0 in container 0 --> API 1 in container 1 --> API 2 in container 2\nTo further confirm my observation, I created another FastAPI REST API 0 in another docker container which consists of a simple request.post call to API 1. The apache benchmark test (ab -n 10000 -c 500 http:\/\/[url of API 0]) further slowing down to RPS 530\nMay I know the reason? I thought http request call to FastAPI REST API shouldn't add that much overhead in the series of nested call\nIn my Microservice distributed application, I have multiple Microservice hosted in different containers whereby some processing of request from client browser might incur nested calls between microservices(for example, client browser call A, A call B, B call C)","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":331,"Q_Id":69388318,"Users Score":0,"Answer":"In absolute terms, if your container stack is handling 530 requests per second, then each request takes 1.9 ms.  That's pretty good on the whole.  (The performance problems I worry about in my day job are individual HTTP requests that take minutes to complete.)  I would not worry about tuning this.\nIt might be more interesting to break this down in terms of latency (time per request) rather than throughput (requests per unit time).  Apachebench can probably output median and 99th-percentile latency.  Just looking at averages, though:\n\n\n\n\nPath\nThroughput\nAverage Latency\n\n\n\n\napi2\n4600 req\/s\n217 \u00b5s\n\n\napi1 \u2192 api2\n1350 req\/s\n740 \u00b5s\n\n\napi0 \u2192 api1 \u2192 api2\n530 req\/s\n1886 \u00b5s\n\n\n\n\n217 \u00b5s is quite fast; adding 0.5-1.0 ms for an additional HTTP hop seems reasonable to me.  Remember that Python is an interpreted language, so this setup will probably be slower than a compiled language like Go, if you're counting microseconds; but also that your \"real\" application will probably involve a database, and in most cases an SQL request will immediately dwarf these numbers.  If the database round-trip requires a minimum of 100 ms then adding 1 ms for an HTTP proxy hop is essentially free.\nIn the microservice environment you describe, having a sequence of cross-service calls is pretty typical.  I'd suggest tuning each service individually: if service B calls service C twice, and service C requires 500 ms to process a request, then the entire stack will require > 1s to run, but profiling service C on its own will hopefully point at the problem.  In my experience the most likely thing you'll need to focus on is the database setup.  Having fewer network hops is \"better\" in the abstract, but the numbers you show here suggest that adding or removing a proxy isn't going to be a big difference in the final performance.","Q_Score":0,"Tags":"docker,python-requests,nested,benchmarking,fastapi","A_Id":69391034,"CreationDate":"2021-09-30T07:53:00.000","Title":"Will nested FastAPI REST API call via requests slow down the performance?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"Workflow:\n\nWebsite:\n\ndoesn't have an API\nrequires login\nclicking on a button to download a file\n\nIs a Javascript button\n\n\n\n\nsave file to a download location\n\nQuestion:\n\nIs there a way to do this through python?","AnswerCount":2,"Available Count":1,"Score":0.0996679946,"is_accepted":false,"ViewCount":201,"Q_Id":69389235,"Users Score":1,"Answer":"I suggest you to use Selenium to mimic the browser environment.\n\nTry to login by giving your credentials using selenium.\nfind the button tag and use the html-tag-id to click on it.\nTry to find the download location of the file \/ try to download it directly using the button","Q_Score":0,"Tags":"python,browser","A_Id":69389288,"CreationDate":"2021-09-30T08:55:00.000","Title":"python - how can I use web browser click and download a file","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have search about this issue and couldn't find anything that would help me.\nEDITED\nThe main idea is to, each time the lambda function is triggered by cloudwatch (everyday), choose a subsequent line from the text file that I get from a s3 bucket, that line will be attached to an e-mail.\nThe next time the lambda is triggered, the same will happen, but with the next line in the text file, and so on.\nI have more or less an idea, using a for loop, my problem is how to, each time the function is triggered, select the next line in the text file.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":74,"Q_Id":69398725,"Users Score":1,"Answer":"If you need to read lines from your file in sequence, one lambda execution a day is one line, then you have to keep track of those lines. If its only once a day, you could use SSM Parameter Store for that. Each time your lambda executes, it would query SSM Parameter Store the the line number which was read previously.\nSimilarly, after successful dispatch of a line, the Lambda function would update the parameter in SSM Parameter Store.\nThe exact details depend on how big the file is, as this process can get progressively slow with time.","Q_Score":1,"Tags":"python-3.x,amazon-web-services,amazon-s3,aws-lambda","A_Id":69399665,"CreationDate":"2021-09-30T20:54:00.000","Title":"Send line from file each time Lambda function is triggered [python]","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a lambda function where, after computation is finished, some calls are made to store metadata on S3 and DynamoDB.\nThe S3 upload step is the biggest bottleneck in the function, so I'm wondering if there is a way to \"fire-and-forget\" these calls so I don't have do wait for them before the function returns.\nCurrently I'm running all the upload calls in parallel using asyncio, but the boto3\/S3 put_object call is still a big bottle neck.\nI tried using asyncio.create_task to run coroutines without waiting for them to finish, but as expected, I get a bunch of Task was destroyed but it is pending! errors and the uploads don't actually go through.\nIf there was a way to do this, we could save a lot on billing since as I said S3 is the biggest bottleneck. Is this possible or do I have to deal with the S3 upload times?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":115,"Q_Id":69399774,"Users Score":1,"Answer":"If there was a way to do this,\n\nSadly there is not, unless you are going to use other lambda function to do the upload for you. This way your main function would delegate time consuming file processing and upload to a second function in an asynchronous way. Your main function can then return immediately to the caller, and the second function does that heavy work in the background.\nEither way, you will have to pay for the first or second function's execution time.","Q_Score":1,"Tags":"python,amazon-s3,aws-lambda,boto3,python-asyncio","A_Id":69399858,"CreationDate":"2021-09-30T23:27:00.000","Title":"Fire-and-forget upload to S3 from a Lambda function","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"heroku git:remote -a mymailapp-live\n\u00bb   Warning: heroku update available from 7.53.0 to 7.59.0.\nError: Command failed: git remote\nfatal: not a git repository (or any of the parent directories): .git\nit is showing me above error.\nplease help me.\ni am hosting this using heroku-cli.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":174,"Q_Id":69414030,"Users Score":0,"Answer":"Type **\n~$ git init\n** and then run your command it should work and make sure you have git installed on your device","Q_Score":0,"Tags":"python,django,heroku-cli","A_Id":69637731,"CreationDate":"2021-10-02T04:43:00.000","Title":"heroku git:remote -a command is not working","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I know that i can extract elements using css selectors with libs such as bs4. but I have a problem where I don't know names of css classes used to style elements I need to extract, but I know that all this elements have common rule applied to them(\"position:fixed;\" in my case). Is there any convenient way(some library) that I can use to do this?","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":47,"Q_Id":69423235,"Users Score":0,"Answer":"Selenium is a very good python library for automation, but it allows for web scraping and selecting multiple using their CSS selectors and more. This should allow you to store all the elements with the\n\n(\"position:fixed;\" in my case)\n\nUsing selenium you would be able to extract the data, then you could manipulate the data however you would want. There are many ways to parse the data itself, so please be more specific on that part.\nIf in doubt send the website link as a comment and ill check the CSS selectors for you.\nHope this has solved the issue.","Q_Score":0,"Tags":"python,parsing","A_Id":69423303,"CreationDate":"2021-10-03T08:27:00.000","Title":"Is there any convenient way to parse html elements by ccs styles applied to them in python?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Im having a project running on python2.7. The project is old but still its necessary to update the database when a request is received. But the update process takes time and ends up with a timeout. Is there anyway return JsonResponse\/Httpresponse, before updating the database so that timeout doesn't occur. I know its not logical to do so, but its a temporary fix.\nAlso, i cant use async since its python2","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":31,"Q_Id":69462657,"Users Score":0,"Answer":"Use  multiprocessing or multithreading this will execute your task with another process and  send HTTP response fastly to client-side","Q_Score":0,"Tags":"django,python-2.7,django-views","A_Id":69464183,"CreationDate":"2021-10-06T08:55:00.000","Title":"Return JSONResponse before updating database in django, python2","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am a java developer and just now started working in Python. I have written one AWS lambda code in python 3.9. In first attempt I have written the complete code in one or two files. But somewhere I have read that we should not create fat files. Then I try to segregate the code into different folders and files. Folders like handlers, services , utils , dao, entity. Each folder has one file and each file has number of functions which can be called independently from another file through import. Then one of the Python expert told me to apply OOPS concept  and also to follow either DDD design or MVC pattern.\nIs it necessary to follow OOPS concept and create classes in serverless architecture?\nCan you point me to some sample GIT repo showcasing the framework for developing an object oriented lambda?\nAWS lambda gets activated on request and dies down when request is served. It is not like server which is active 24hours without request.\nWhat is best design pattern or architecture or coding paradigm to follow in AWS lambda code for python language which also supports modular programming?","AnswerCount":2,"Available Count":2,"Score":0.2913126125,"is_accepted":false,"ViewCount":394,"Q_Id":69471022,"Users Score":3,"Answer":"It depends a lot on your use case.\nLambda's are stateless. There is little point in building Classes for most situations in Lambdas because you cannot pass that class instantiation out of the lambda. (meaning you'd have to re-instantiate it again in a different lambda called in succession) In addition, because of the limitations on time and memory in Lambdas, its best if they have small scope - they do one or two things then update the database or call another lambda or continue in a Step Function. The most likely class you might create would be a Struct type -which there isn't really one in python. A dictionary in python performs much the same functionality as a struct and with far less overhead.\nClean Code and TDD ideologies would indicate that it be best to have lots of little functions that you call in succession in your Lambda handler. That lets you get better testing patterns and behaviro testing done without having to mock a bunch of stuff when testing bits of components.\nIt also helps because, while you can run your lambda handler as any other function on your local, you will not have easy access to the mocked context if you are trying to use some of that in the lambda, and running on your local does not mean that the lambda will successfully run once deployed. so a test is nice, but not definite. But if you can verify the behavior of all your smaller functions you have far less to troubleshoot at the lambda level in the cloud.\nas for any other architectural pattern... whatever makes you comfortable. You can very much make lambdas the Controllers in an MVC. You can then organize your file structure around that. Or you can have a collection of lambdas for a domain in DDD and organize around that. Honestly, there is no best way to do it in general, there is only the most effective and efficient for your project way.\nOne thing to note as you go into multiple lambdas however is how they are deployed through various systems like CDK or Cloudformation. In which case, it is FAR better to have every lambda in its own directory only referencing it self internally (You'll have to have fun with Python Imports to get this to work in your local tho)","Q_Score":0,"Tags":"python,amazon-web-services,design-patterns,aws-lambda","A_Id":69474011,"CreationDate":"2021-10-06T18:36:00.000","Title":"Which design pattern to follow while writing AWS lambda code in Python 3.9","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am a java developer and just now started working in Python. I have written one AWS lambda code in python 3.9. In first attempt I have written the complete code in one or two files. But somewhere I have read that we should not create fat files. Then I try to segregate the code into different folders and files. Folders like handlers, services , utils , dao, entity. Each folder has one file and each file has number of functions which can be called independently from another file through import. Then one of the Python expert told me to apply OOPS concept  and also to follow either DDD design or MVC pattern.\nIs it necessary to follow OOPS concept and create classes in serverless architecture?\nCan you point me to some sample GIT repo showcasing the framework for developing an object oriented lambda?\nAWS lambda gets activated on request and dies down when request is served. It is not like server which is active 24hours without request.\nWhat is best design pattern or architecture or coding paradigm to follow in AWS lambda code for python language which also supports modular programming?","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":394,"Q_Id":69471022,"Users Score":0,"Answer":"Try writing helper functions into utils.py file so that your lambda_function.py file is not big. You can also write async funtions to reduce timeout error as each lambda has its own execution time out.  Service Pattern will sit the best for these kind of services.You can invoke async function by invoking a lambda inside one lambda.","Q_Score":0,"Tags":"python,amazon-web-services,design-patterns,aws-lambda","A_Id":69471410,"CreationDate":"2021-10-06T18:36:00.000","Title":"Which design pattern to follow while writing AWS lambda code in Python 3.9","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Started getting this error today on my Django project that uses Stimulus js. This started happening due to the recent Stimulus js 3.0.1 release.\nAdding an answer with the solution that worked.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":1692,"Q_Id":69479061,"Users Score":3,"Answer":"Faced same issue after stimulus release 3.0.1.\nwe had the Stimulus js file included using the path https:\/\/unpkg.com\/stimulus\/dist\/stimulus.umd.js. After version 3.0.1 release, stimulus stopped working saying Uncaught TypeError: Cannot read properties of undefined (reading 'start') in chrome and Uncaught TypeError: Stimulus.Application is undefined in Firefox, but both pointing to same code.\nOpening that path redirected to https:\/\/unpkg.com\/stimulus@3.0.1\/dist\/stimulus.umd.js that had only 10 to 15 lines of code, probably some mistake in unpkg.\nSpecifying older stimulus version in the path( and hence using version 3.0.0 of stimulus ), the error disappeared.\nHere is the url with previous version:\nhttps:\/\/unpkg.com\/stimulus@3.0.0\/dist\/stimulus.umd.js.","Q_Score":0,"Tags":"python,django,stimulusjs","A_Id":69479955,"CreationDate":"2021-10-07T09:51:00.000","Title":"Uncaught TypeError: Cannot read properties of undefined (reading 'start')","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have read many topics here about django SECRET_KEY, but most of them are about how to store it in environment variable instead of settings.py, at this stage everything is clear. Currently i keep it in .env locally and in config var on heroku.\nIm confused about 2 conflicting points that i can't combine together.\n\nIt considers as a good practice to keep SECRET_KEY in secret. From\nthe docs:\n\nInstead of hardcoding the secret key in your settings module, consider\nloading it from an environment variable\n\nBesides that github warms in email if you have SECRET_KEY explicit\nin your code:\n\nGitGuardian has detected the following Django Secret Key exposed\nwithin your GitHub account.\n\n\nI want to allow anyone to run my project locally. I have it on\ngithub and deployed version on heroku, but it's still a demo project\nwhich is used as part of portfolio, not a serious one.\n\n\nSo if i put SECRET_KEY in local environment, people who git clone my app and try to run it, obviously, won't be able to do that since they don't have access to SECRET_KEY in my environment.\nWhat is the solution here? Should i break the protection convention and put it explicitly in settings.py?","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":579,"Q_Id":69506915,"Users Score":0,"Answer":"I'm sure there are multiple solutions that differ on how easy to use they are vs how secure they are.\nYou could use a default value as fallback for the environment variable. Also you might want to ensure this only works if DEBUG is set to True, so nobody uses the default key in production.","Q_Score":2,"Tags":"python,django,secret-key","A_Id":69507455,"CreationDate":"2021-10-09T12:54:00.000","Title":"Django SECRET_KEY protection VS allow anyone to run project locally","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I've seen mention of sigkill occurring for others but I think my use case is slightly different.\nI'm using the managed airflow service through gcp cloud composer, running airflow 2. I have 3 worker nodes all set to the default instance creation settings.\nThe environment runs dags fairly smoothly for the most part (api calls, moving files from on prem) however it would seem as though its having a terribly hard time executing a couple of slightly larger jobs.\nOne of these jobs uses a samba connector to incrementally backfill missing data and store on gcs. The other is a salesforce api connector.\nThese jobs run locally with absolutely no issue so I'm wondering why I'm encountering these issues. There should be plenty memory to run these tasks as a cluster, although scaling up my cluster for just 2 jobs doesn't seem like it's particularly efficient.\nI have tried both dag and task timeouts. I've tried increasing the connection timeout on the samba client.\nSo could someone please share some insight into how I can get airflow to execute these tasks without killing the session - even if it does take longer.\nHappy to add more detail if required but I don't have the available data in front of me currently to share.","AnswerCount":2,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":167,"Q_Id":69517796,"Users Score":0,"Answer":"Frustratingly, increasing resources meant the jobs could run. I don't know why the resources weren't enough as they really should've been. But optimisation for fully managed solutions isn't overly straight forward other than adding cost.","Q_Score":0,"Tags":"python,airflow,samba,google-cloud-composer","A_Id":69537131,"CreationDate":"2021-10-10T18:15:00.000","Title":"Airflow sigkill tasks on cloud composer","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I need to create a browser which is chromium based and do not require any kind of dependencies or installation to launch, and do not allow browser specific functionalities like reloading, open in new tab, back and next button, developer tools and also want to hide the address bar.\nWhile looking out for options we have already tried JavaFx web view with JxBrowser, it serves the purpose, but firstly it is dependent on Java and also the size of JRE files is about 170 MB which is large for our requirements, so was looking out for option for which size should be less than 50 MB.\nSo, please let know what would be best approach for creating this browser.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":70,"Q_Id":69525990,"Users Score":0,"Answer":"With jlink and jpackage you can reduce the size of the Java solution.","Q_Score":0,"Tags":"python,java,visual-c++,chromium,chromium-embedded","A_Id":69528632,"CreationDate":"2021-10-11T12:10:00.000","Title":"How to build our custom chromium based lightweight browser with does not require installation to launch","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I followed the polls tutorial for Django and am beginning my own hobby project today. When creating an app, the following really confused me -\nYour apps can live anywhere on your Python path. In this tutorial, we\u2019ll create our poll app in the same directory as your manage.py file so that it can be imported as its own top-level module, rather than a submodule of mysite.\nSo my question is - What is the difference between a top-level module vs a submodule for my project?\nAnd how do I decide which one to choose?\nAny help will be greatly appreciated as I am a noob coder working on my first hobby project lol.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":52,"Q_Id":69530029,"Users Score":2,"Answer":"There's no real other difference than matters of taste, organization, and naming.\nFor what it's worth, with my 10+ years of Django, I still generally like to just have the app packages parallel to the project package (i.e. what that passage suggests).\n(It's occasionally also handy to make the project package an app, for some very core models such as custom users, etc.)\nThere are cases when it does make sense to have packages of interrelated apps, but those are generally for reusable apps such as allauth etc.","Q_Score":1,"Tags":"python,django","A_Id":69530059,"CreationDate":"2021-10-11T17:06:00.000","Title":"What's the difference between a top level module and a sub-module in Django when using - \"python manage.py startapp polls\"","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am creating an E-Learning system (similar to Udemy) where I have instructors, students and admins. I was thinking to create a panel for each one of these stakeholders.\nMy question is, can I use Django's admin panel, where I need this panel to block users and block a course and so on?\nThank you.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":60,"Q_Id":69540405,"Users Score":-1,"Answer":"Not 100% Sure but as much as i know django admin panel can be access by superuser only. Student Account and Developer Account cant access admin panel unless you provide them staff and Superuser access. And giving them access means they are same as admins!maybe not sure!","Q_Score":0,"Tags":"python,django","A_Id":69540599,"CreationDate":"2021-10-12T12:17:00.000","Title":"Can I use Django admin panel as the only view for the admin of the site not for developer?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I was trying to push my code to the heroku and when I migrate my manage.py, it causes this error: django.db.utils.DataError: length for type varchar cannot exceed 10485760 .\nFirst, my length has been set to 100000000 and I change it back to 1000 and make migrations. But even after that I still got this Error. I try to search my whole files and everything is set to 1000. Help me to solve the problem!","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":90,"Q_Id":69557904,"Users Score":0,"Answer":"The error takes place when you run the migration file that was constructed when you have set it to 100'000'000. You need to look to the migration files and remove the migration file (and the ones that depend on that one, given you made more migration files). You can find these in the app_name\/migations\/ directory (with app_name the name of the module of your app).\nThen you can run makemigrations again, which will construct a CharField with length 1'000, and will update the database accordingly.","Q_Score":1,"Tags":"python,django","A_Id":69557947,"CreationDate":"2021-10-13T15:05:00.000","Title":"django.db.utils.DataError: length for type varchar cannot exceed 10485760","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have deployed my django website to Heroku but since the website fields are dependent upon a database that is on my local machine. I've tried using Postgres but the database on Heroku doesn't populate with the data I need it to before the app runs. Has anyone experienced this? Do I need to use an exteranl database on AWS or something (in which case, what is the best way to do this?)","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":47,"Q_Id":69564605,"Users Score":0,"Answer":"I have deployed a Django project on Heroku where I had data in models even after the deployment the data remained in the models. I worked on SQLite in production. Heroku works with Postgres but on deploying also my data remained safe. I just used git push heroku main","Q_Score":0,"Tags":"python,django,heroku","A_Id":69568398,"CreationDate":"2021-10-14T03:03:00.000","Title":"Deploy Django app to Heroku AFTER DATABASE?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am working on a Python web app that uses Celery to schedule and execute user job requests.\nMost of the time the requests submitted by a user can't be resolved immediately and thus it makes sense to me to schedule them in a queue.\nHowever, now that I have the whole queuing architecture in place, I'm confused about whether I should delegate all the request processing logic to the queue\/workers or if I should leave some of the work to the webserver itself.\nFor example, apart from the job scheduling, there are times where a user only needs to perform a simple database query, or retrieve a static JSON file. Should I also delegate these \"synchronous\" requests to the queue\/workers?\nRight now, my webserver controllers don't do anything except validating incoming JSON request schemas and forwarding them to the queue. What are the pros and cons of having a dumb webserver like this?","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":31,"Q_Id":69575344,"Users Score":1,"Answer":"I believe the way you have it right now plus giving the workers the small jobs now is good. That way the workers would be overloaded first in the event of an attack or huge request influx. :)","Q_Score":1,"Tags":"python,celery,task-queue","A_Id":69575452,"CreationDate":"2021-10-14T17:58:00.000","Title":"Which requests should be handled by the webserver and which by a task queue worker?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I just need some advice about what database should I use, and how should I store my data.\nNamely I need to store big chunk of data per user, I was thinking about storing everything in JSON data, but I thought that I could ask you first.\nSo I am using Django, and for now MySql, I need to store like 1000-2000 table rows per user, with columns like First Name, Last Name, Contact info, and also relate it somehow to the user that created that list. Also I need this to be able to efficiently get data from database.\nIs there any way of storing this big data per user?\nThank you!","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":69,"Q_Id":69609348,"Users Score":0,"Answer":"I know pandas is a library that works very well for storing data. So maybe look into that and see what file formats are well documented with it.","Q_Score":0,"Tags":"python,mysql,json,django,database","A_Id":69609521,"CreationDate":"2021-10-17T23:29:00.000","Title":"What is the best way to store big data per user?","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have tens of thousands of geofences on the AWS Redshift table A.\nAnd also logging of tens of thousands of AIS signals every 1 hour on table B.\nHowever, I want to check and log that which AIS is incoming or outgoing for whole geofences.\nHow can I achieve that?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":53,"Q_Id":69611705,"Users Score":0,"Answer":"From your description of the problem, I would guess that a geofence needs to be transformed into a polygon using ST_Polygon().  Once you have your polygons (table A), you will need to take the AIS signals and transform them into geolocation points (table B) using ST_Point().\nWhen you have all your data transformed into compatible geolocation format - you will use the ST_Contains().\nI will add that geolocation data might take sometime in Redshift and you will most likely have to do a cartesian product of all your polygons vs all your geolocation points.\nI hope I understood your problem properly.","Q_Score":0,"Tags":"python,amazon-redshift,ais,geofence","A_Id":69612977,"CreationDate":"2021-10-18T06:37:00.000","Title":"How to check an AIS signal is outgoing from a geofence with spatial database?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm looking for a way to export a huge Graph generated with pyvis in to a vector graphic .svg or at least .png format. Is there a way to do it? So far I've only found the option to save \/ export as .html file.\nThanks in advance.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":306,"Q_Id":69629495,"Users Score":0,"Answer":"For me this worked:\n\nsave the graph to HTML file\nopen the HTML in a new tab\nright-click -> save image as ...","Q_Score":4,"Tags":"python,graph,pyvis","A_Id":71353301,"CreationDate":"2021-10-19T10:53:00.000","Title":"Export pyvis graph as vector or .png image. Is there a way?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I've been building an application using Apache Cordova - it's actually based on machine learning, but all my machine learning prototyping has been done in Python.\nIs there a way I could incorporate my Python libraries (like scikit-learn) into my Apache Cordova app, or is there something else I should include?\nThank you, any help would be appreciated!","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":110,"Q_Id":69647582,"Users Score":1,"Answer":"No, you can't embed a programming language as a plugin for Cordova. You can however do a remote call to a server running python.","Q_Score":0,"Tags":"python,cordova","A_Id":69649632,"CreationDate":"2021-10-20T14:09:00.000","Title":"Can we use Python modules with Apache Cordova?","Data Science and Machine Learning":1,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm updating a Django 1.7 application running on a Linux server with Nginx.\nI've updated my views.py and added some data to the payload sent to populate the template, to present in the resulting web page, but there's no update to the data being sent to the template.\nI made changes to the template files (html) to see if anything at all changes, and yes, the changes to the template were shown in the resulting web page.\nI figured that the -py files were being cached by something (web server maybe?) so I've restarted the nginx service again and again, but no change.\nThe .pyc files did not update, so I removed them, restarted nginx, but no new .pyc files were generated.\nI ran python -m compileall in python 2, and new .pyc files were created, but the resulting web page still wasn't being updated.\nBottom line... No changes made to my .py files are affecting the application being run. Changes to template files, javascript files and so on... no problem at all. Everything byt the .py files seem to work.\nI don't really know what more to present here to give more hints about my problem, so please ask.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":151,"Q_Id":69648192,"Users Score":1,"Answer":"As @Marat pointed out in the comments, what I needed to do was to restart the uwsgi service to make my changes take effect.","Q_Score":1,"Tags":"python,django,postgresql,nginx","A_Id":69674136,"CreationDate":"2021-10-20T14:45:00.000","Title":"Changed Django .py files not updating on nginx app","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to deploy a Django app from a development server to a production server\nI have set up a virtualenv with python 3.8.10, created the mysql database, I am running in the virtualenv. I get no errors from python manage.py check, get \"no changes detected\" when running python manage.py makemigrations, but when I run ```python manage.py migrate`` I get the following:\nOperations to perform:\nApply all migrations: admin, auth, contenttypes, sessions\nRunning migrations:\nApplying contenttypes.0001_initial... OK\nApplying admin.0001_initial...Traceback (most recent call last):...\nfinal line of the traceback:\nDjango.db.utils.OperationalError: (1824, \"Failed to open the referenced table 'classroom_user'\")\n(\"classroom\" is the name of the app within the project \"codex\") I just recently rebuilt all of the tables in this database on my development server with no issues.\nThe database on the production server is empty. models.py is in place and complete. I have tried it both with an empty migrations folder and the migration folder removed. The migration does create django_admin_log, django_content_types, django_migrations, but no other tables.\nAll of the other posts I have seen on this have been about have foreign key constraints, but in my models.py all of the tables that have foreign keys are specified after the tables where the keys are.","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":854,"Q_Id":69653388,"Users Score":0,"Answer":"This worked for me!\nTry to check your table ENGINE with this command:\n\n\nMySQL: SHOW TABLE STATUS WHERE NAME='XXX';\n\n\nThen find its Engine (It's either MyISAM on InnoDB)\nAfter that, change the engine of your newly created table (which throw the error) and match it with your classroom_user table with this command:\n\n\nMySQL: ALTER TABLE classroom_user ENGINE='XXXX';\n\n\nThen run migrate again and you're good to go!","Q_Score":3,"Tags":"python,mysql,django,django-migrations","A_Id":71194549,"CreationDate":"2021-10-20T21:44:00.000","Title":"Django migration: django.db.utils.OperationalError: (1824, \"Failed to open the referenced table 'classroom_user'\")","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to deploy a Django app from a development server to a production server\nI have set up a virtualenv with python 3.8.10, created the mysql database, I am running in the virtualenv. I get no errors from python manage.py check, get \"no changes detected\" when running python manage.py makemigrations, but when I run ```python manage.py migrate`` I get the following:\nOperations to perform:\nApply all migrations: admin, auth, contenttypes, sessions\nRunning migrations:\nApplying contenttypes.0001_initial... OK\nApplying admin.0001_initial...Traceback (most recent call last):...\nfinal line of the traceback:\nDjango.db.utils.OperationalError: (1824, \"Failed to open the referenced table 'classroom_user'\")\n(\"classroom\" is the name of the app within the project \"codex\") I just recently rebuilt all of the tables in this database on my development server with no issues.\nThe database on the production server is empty. models.py is in place and complete. I have tried it both with an empty migrations folder and the migration folder removed. The migration does create django_admin_log, django_content_types, django_migrations, but no other tables.\nAll of the other posts I have seen on this have been about have foreign key constraints, but in my models.py all of the tables that have foreign keys are specified after the tables where the keys are.","AnswerCount":2,"Available Count":2,"Score":1.0,"is_accepted":false,"ViewCount":854,"Q_Id":69653388,"Users Score":6,"Answer":"OK, solved.\nI was able to get a different error with a slightly older version of Django (3.2.6 instead of 3.2.8) and on a Windows server instead of Linux. This gave me an error regarding foreign key restraints that I have seen in other posts, but was not an error I had seen before.\nI had to perform the migrations for my app first (where classroom is the app within the  project.):\npython manage.py makemigrations classroom\npython manage.py migrate","Q_Score":3,"Tags":"python,mysql,django,django-migrations","A_Id":69662414,"CreationDate":"2021-10-20T21:44:00.000","Title":"Django migration: django.db.utils.OperationalError: (1824, \"Failed to open the referenced table 'classroom_user'\")","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I recently changed my OS to win11 which afterwards i've not been able to run selenium.\nWhen running, it displays this as the output \"selenium.common.exceptions.WebDriverException: Message: unknown error: cannot connect to chrome at localhost:1111 from chrome not reachable\"\nI used \"chrome.exe --remote-debugging-port=1111\" to open chrome using CMD but it displays this \"'chrome.exe' is not recognized as an internal or external command, operable program or batch file.\" instead of asking for admin right and then opening as usual.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":54,"Q_Id":69655459,"Users Score":0,"Answer":"I managed to fix chrome's error. I added chrome application path to the environment variable and it worked.\nThis C:\\Program Files\\Google\\Chrome\\Application\\ is fixed the CMD error.","Q_Score":0,"Tags":"python,selenium,google-chrome,automation,webdriver","A_Id":69663237,"CreationDate":"2021-10-21T03:19:00.000","Title":"Python Selenium Chrome not running after OS upgrade","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Is there a kepler library i can install in my django project to use kepler.gl in my frontend, like in leaflet-django. If not, how do i use Kepler.gl maps as frontend for django backend?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":99,"Q_Id":69660236,"Users Score":0,"Answer":"You can visit \"kepler.gl\/demo\" and click in the left sidebar export to html. After that you can use this html for your endpoint (view template) in django.\nThe data can be passed trough the httpResponse in your views.py from the database to view into the script. If you like you can put the script code in seperate Javascript files and link them in your endpoint.","Q_Score":0,"Tags":"python,django,web,data-visualization,kepler.gl","A_Id":71861218,"CreationDate":"2021-10-21T10:26:00.000","Title":"How do i use kepler.gl with Django backend","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Having trouble with pip install web3 using python3.10 on a macOS bigsur 11.6\nsays Building wheel for cytoolz error\nI have already tried the following:\n\nxcode-select --install\nrunning virtual environment\nbumping down to python3.7 (worked for others)\n\nany more new things to try? help","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":454,"Q_Id":69680990,"Users Score":0,"Answer":"I had the same issue with Python 3.10.0. I downgraded to Python3.9.7 and was able to build cytoolz wheel and eth-brownie installation worked!","Q_Score":0,"Tags":"python,web3","A_Id":69875995,"CreationDate":"2021-10-22T17:32:00.000","Title":"having problem installing web3 with pip installer (cytoolz error)","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":1,"Web Development":1},{"Question":"So I tried to start a Django project called 'tokenize' (using django-admin startproject tokenize) and it gave me the below error -\n\nCommand Error: 'tokenize' conflicts with the name of an existing Python module and cannot be used as a project name. Please try another name.\n\nI then deleted all of my tokenize.py files from my computer and it's now giving me this error:\n\nTraceback (most recent call last):\nFile \"\/Library\/Frameworks\/Python.framework\/Versions\/3.9\/bin\/pip\", line 5, in \nfrom pip._internal.cli.main import main\nFile \"\/Library\/Frameworks\/Python.framework\/Versions\/3.9\/lib\/python3.9\/site-packages\/pip\/_internal\/cli\/main.py\", line 4, in \nimport logging\nFile \"\/Library\/Frameworks\/Python.framework\/Versions\/3.9\/lib\/python3.9\/logging\/init.py\", line 26, in \nimport sys, os, time, io, re, traceback, warnings, weakref, collections.abc\nFile \"\/Library\/Frameworks\/Python.framework\/Versions\/3.9\/lib\/python3.9\/traceback.py\", line 5, in \nimport linecache\nFile \"\/Library\/Frameworks\/Python.framework\/Versions\/3.9\/lib\/python3.9\/linecache.py\", line 11, in \nimport tokenize\nModuleNotFoundError: No module named 'tokenize'\n\nI searched everywhere and can't find out how to fix this issue. I know I screwed up but any assistance is appreciated.","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":1564,"Q_Id":69691000,"Users Score":0,"Answer":"tokenize is a standard python library that is probably extensively used by other parts of python. You need to reinstall Python, probably after uninstalling your current installation.\nIt almost goes without saying, but you have to call your new project something else.","Q_Score":0,"Tags":"python,django","A_Id":69691224,"CreationDate":"2021-10-23T18:34:00.000","Title":"ModuleNotFoundError: No module named 'tokenize'","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a newbie question here. I'm currently working on a site where the user can add items to a model I created. The thing works fine if I'm logged in as super admin in the Django admin panel, but if I'm not, the CSRF verification doesn't work and I can't operate.\nIs this a \"Debug: True\" thing? Once I'm ready to production and turn debug off, will it work without login? Thanks!","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":21,"Q_Id":69709703,"Users Score":0,"Answer":"Turns out I wasn't addint the {{csrf_token}} in the template. Adding it solved it","Q_Score":0,"Tags":"python,django,web","A_Id":69814613,"CreationDate":"2021-10-25T14:20:00.000","Title":"Access and modify Django DB without login in as superuser","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to use the db.sql 3 but when I open it is not reading the file. Moreover, I also downloaded SQLite extension but when I again click on db.SQLite 3 is nothing showing there. So please help me regarding this.","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":281,"Q_Id":69734499,"Users Score":0,"Answer":"download extension called sqlite viewer on your vs code","Q_Score":0,"Tags":"python,database,visual-studio","A_Id":71902239,"CreationDate":"2021-10-27T07:31:00.000","Title":"How to open db.sqlite3 in Visual studio for django project","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to create an Azure function app using python.\nIn my app, I need to convert a pdf to image.\nThis needs to use popple-utils.\nWhen I run the app and I want to convert the pdf to image: convert_from_bytes(file_name,500) I got this error: Unable to get page count. Is poppler installed and in PATH?\nhow can I fix this problem?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":148,"Q_Id":69737043,"Users Score":0,"Answer":"I tried to dockerize the Azure function and it worked completely\nJust need to add ad Docker file in root of the project like this:\nFROM mcr.microsoft.com\/azure-functions\/python:3.0-python3.7\nENV AzureWebJobsScriptRoot=\/home\/site\/wwwroot \\ \nAzureFunctionsJobHost__Logging__Console__IsEnabled=true \nCOPY requirements.txt \/ \nRUN apt-get update -y \nRUN apt-get install poppler-utils  -y \nRUN pip install -r \/requirements.txt \nCOPY . \/home\/site\/wwwroot\nThen dockerized it and pushed it to Azure Registry.\n\nnavigate to your Azure portal\ncreate an Azure function (docker)\nnavigate to deployment center\naddress your docker image\nand it will work ok","Q_Score":1,"Tags":"python,azure","A_Id":69737044,"CreationDate":"2021-10-27T10:33:00.000","Title":"azure function poppler utils","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"Is Pyautogui detectable by websites? (I know Selenium can be detectable) I'm going to use it to click and move the mouse. I would like to know if some kind of script can detect clicks and movements made by Pyautogui, I don't know much about web programming and I'm learning to do automations.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":493,"Q_Id":69746707,"Users Score":2,"Answer":"No, as far as I know, there is no way for a website to detect the device or software (such as PyAutoGUI) which is making inputs, however, a site could detect robotic mouse movement etc., and you will not be able to pass CAPTCHAs.","Q_Score":1,"Tags":"python,pyautogui","A_Id":69746784,"CreationDate":"2021-10-27T23:47:00.000","Title":"Is Pyautogui detectable by web scripts?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have to fetch data in descending order. So what would be faster? fetch the data in descending order or reverse() the list of fetched data.\nNote: I have been using SQLAlchemy in Flask framework. My application has to fetch hundreds of data from MySQL.","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":65,"Q_Id":69749134,"Users Score":1,"Answer":"It depends on if that sql table is indexed on the column that you are sorting.\nIf it is, let the query do the sorting. If it is not, it depends more on the parallelization of the sorting algo that you are running between the sql engine or your python code. If it is just hundreds of rows, it really wouldn't be significant performance difference between the two approaches if the table is not indexed on that column.","Q_Score":0,"Tags":"python,list,flask,sqlalchemy,flask-sqlalchemy","A_Id":69764385,"CreationDate":"2021-10-28T06:16:00.000","Title":"In SQLAlchemy, Which is better to fetch the data in descending order or reverse() list the fetched data?","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"How can I take a screenshot of a GLTF model in python?\nThe idea is to load and position a 3D model and save the screenshot as an image. I want to run this on a server, where I will host the models. I found some javascript frontend solutions, but I need it server side.\nUnfortunately I haven't found anything yet which worked...","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":137,"Q_Id":69756643,"Users Score":0,"Answer":"I ended up using Puppeteer, a nodeJS library, where I push the result to my python API then.","Q_Score":0,"Tags":"python,node.js,3d,gltf,3d-rendering","A_Id":70065160,"CreationDate":"2021-10-28T15:11:00.000","Title":"How to take a screenshot of a GLTF 3D model server side (Python or NodeJS)","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":1,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have trained a text classification model (for classifying User Agent strings) and generated a bin file. I'm looking to host the model (preferably Redis) but haven't found any articles in relevance. The model will need to classify millions of requests per second, if not more and would need to be hosted in multiple server instances. So I'm looking to create an efficient solution for hosting the model, either through Redis or any other scalable way.\nTIA!","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":35,"Q_Id":69771234,"Users Score":0,"Answer":"As far as I know, Facebook Research's own released FastText code is the only code supporting -supervised model training, saving, & deployment.\nSo you'll likely need to distribute your trained model .bin to multiple servers, then use the Facebook code, wrapped in some sort of service process, to answer queries.\nIt's hard to imagine any role for Redis, as the underlying model weights in the Facebook save-format, & as Facebook code loads into main memory, are already in a raw, compact, complete format.\nIt's not something that the indirection of as added key-value\/database layer would improve \u2013 the whole model is needed, and in the Facebook code's expected raw format, for the classification operations to work. That is, there's nothing to be gained by parceling that model out in smaller pieces, perhaps from remote replicas, or adapting the classification code to access the model through any extra retrieval-API. But adding such indirection might slow or complicate things.\nHowever, in practice aren't there a small number of very-common User-Agent strings, then a long tail of rarer ones? So of the \"millions of requests per second\", 99% are likely to be from the same set of a few dozen (or few hundred) strings, for which the classifications can be cached - not requiring any consultation of the underlying FastText model?\nIn such a case, you might only need one service doing the full FastText-classification, but a large number of simple caches in front of that service, each servicing most requests from a cached prior answer.","Q_Score":0,"Tags":"python-3.x,redis,user-agent,text-classification,fasttext","A_Id":69813829,"CreationDate":"2021-10-29T15:16:00.000","Title":"Hosting fasttext model (.bin) in redis","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am currently building a Django app that requires two different user types and I know that storing authentication information across multiple models\/tables is a bad idea.\nAs such, I have created a User model to handle the authentication information (username, password, etc.). I have then created two different models, one for the buyers and one for the sellers, each with their own unique fields and one-to-one relationship to the User model.\nNow, I thought this would work, but the problem is that it is still possible for a different buyer and seller to have the same User relation. How can I prevent this and restrict the User model to only a single one-to-one relation?","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":90,"Q_Id":69780280,"Users Score":0,"Answer":"you can add role in actor's model and make a pre_save signal before save user in buyer or seller model","Q_Score":0,"Tags":"python,django,django-models,foreign-keys,one-to-one","A_Id":72132556,"CreationDate":"2021-10-30T13:55:00.000","Title":"How to restrict a Django model to a single one-to-one relation?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm having a trouble using the render_template() Flask function.\nIn my original template (html) I have a 'text' that is wrapped by {{}}, and it should not be interpreted as a variable for flask to print. For example:\n{{InteractionDefaults.Email}}\n{{content.Name}}\nIn this particular case, flask is converting correctly the {{content.Name}} because it's an object that I'm giving as parameter in the render_template function. But the ERROR here is when the flask try to render {{InteractionDefaults.Email}} object, since that string is not a object that i'm giving as parameter, because it's a static text that should be printed exactly that way \"{{InteractionDefaults.Email}}\" in the rendered template.\nThe error is:\n'InteractionDefaults' is undefined\nHow can I say to flask do not interpreter this as a variable? I tried something like\n@{{InteractionDefaults.Email}}\nBut I think that didn't work.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":93,"Q_Id":69783876,"Users Score":0,"Answer":"You can escape the {{ by enclosing them in double quotes, for flask to interpret it as a string like,\n{{ \"{{InteractionDefaults.Email}}\" }}","Q_Score":0,"Tags":"python,templates,flask,render","A_Id":69812853,"CreationDate":"2021-10-31T04:08:00.000","Title":"Python Flask render_template() ignore {{text}} that was not a var","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I was wondering if there is any way to make decisions based on webhook responses in Mautic. To elaborate, I post a request via webhook and the corresponding API responds with an error (e.g. 411). I want to create a campaign that has a block depending on the response of that webhook if it receives 200 decision 1 is made and if it receives 411, another decision is made.\nhow can I implement this?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":40,"Q_Id":69787645,"Users Score":0,"Answer":"I don't think such feature exists by default, but there can be alternative ways to do this.\n\nsending an api call from the system in question(like on success make a call do set some tag or field) same goes for error. However this is practical as long as you have control over that system.\nCreate a custom campaign Decision node which will listen to the responses of the webhook(in this case you will need to send the webhook using campaign only), Again the block here is that you will need to know how to code a custom campaign decision or will need to look for a developer who can do it.","Q_Score":0,"Tags":"python,mautic","A_Id":70380681,"CreationDate":"2021-10-31T14:42:00.000","Title":"make a decision based on response of webhook in mautic","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Basically user has to input their name like jOhn JhOnson\nand i have to return it as John Jhonson\nbut if the user has 3 names like jonny jon jony\nI have to return it like Jonny-Jon Jony\nand i have no idea how","AnswerCount":2,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":69,"Q_Id":69802521,"Users Score":0,"Answer":"I would use a string tokenizer to count the number of names you have. Then you can easily manipulate each token and then append them altogether for your return value. I can't really help you beyond that without knowing what language you are using.","Q_Score":0,"Tags":"python,string,input","A_Id":69802566,"CreationDate":"2021-11-01T20:35:00.000","Title":"Can't figure out how to return input","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am fairly new to the Python Flask world (or web applications in general), just started my first project on Friday using Jupyter Notebooks and am now trying to build a Flask web app from it - so please bear with me :)\nMy app creates pareto-efficient Portfolios based on the user-input.\nOn the index page I have a couple of input fields for user-input which I collect through a form. On calculate the app routes to the results page and in the process runs the data from the form through some calculations, then displays some tables with infos and plotly graphs.\nNow I would like the user to be able to further manipulate the data but the data isn't accessible \/ persistently saved. - I've read something about using global variables or the session dict which are not recommended.\nSo I am asking myself two things:\n\nWhat is the easiest way to implement the persistently save my objects & lists to manipulate the data between different routes\nIn case of having to use a database: What is the smartest logic to work with in that scenario to be able to receive the correct data in case of using a database (e. g. 50 people use the web app simultaneously - how do I make sure that user X retrieves his earlier data instead of the data from user y -- the web app does not require a login and I also don't plan on implementing one as I wanted this to be as quick and simple as possible)\n\nYour help is much appreciated - I've probably written 5000 lines of code this weekend and maybe I just can't see the forest for the trees right now","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":59,"Q_Id":69804143,"Users Score":1,"Answer":"You'll have to use a database, unless you want to store the data in-memory. However, in-memory data (python globals, for example) will be lost when the server performs a reboot - or crashes. This will be especially annoying during development, because all the data will be reset whenever you make a change in the code.\nYou could use an in-memory database like redis. This works very similar to using globals directly in the code, but it is a database and can be configured to save the data to the disk and survive crashes, etc...\nConsidering the sharing of data between users: I dont see a good way around having the users chose a login and associating the data with the user which is currently logged in. If its really just a for-fun project, you could use the User Agent and their IP address to identify users, but I dont recommend this - like, at all. This would be similar to browser-fingerprinting, which gives you a high chance of identifying users, but you can never be 100% sure.\nWhat you could do for example is give the user a JWT, and just hand them out with a generated username. The user will be \"that user\" for as long as that JWT is valid. This means you need to save it on the client-side and send it with every request, which makes it slightly more complex.","Q_Score":0,"Tags":"python,database,flask","A_Id":69807707,"CreationDate":"2021-11-02T00:24:00.000","Title":"Simple way to store objects, variables and lists to use between routes","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"After new update of python-engineio am receiving, \"Unexpected error \"packet is too large\", closing connection socketio flask\" in the python-engineio logs, when I try to send large amount of data.\nIt was working fine few days ago.\nFor server am using : flask_socketio\nFor client am using : python_socketio[client]\nAny help is appreciated\nThanks","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":80,"Q_Id":69804803,"Users Score":0,"Answer":"This is a security related change, to prevent DoS attacks. Set the max_http_buffer_size argument in your SocketIO constructor to your desired maximum size. The default is 1MB, same as the reference JavaScript implementation.","Q_Score":0,"Tags":"python,flask,websocket,socket.io,flask-socketio","A_Id":69813919,"CreationDate":"2021-11-02T02:37:00.000","Title":"Unexpected error \"packet is too large\", closing connection socketio flask","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to save objects in DB [obj.save()] with the help of ORMs. But it throws the following error:\ndjango.db.utils.ProgrammingError: set_session cannot be used inside a transaction\nDoes any ideas about this error?\nI am using Django & PostgresDB","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":333,"Q_Id":69811805,"Users Score":0,"Answer":"this is a bug of psysopg2 for that you can install older version of psysopg2 for now i was having same issue so I installed older and balanced version of psysopg2. so this one you can try this command to install\npip install psycopg2==2.6.2\nmay be this will work","Q_Score":1,"Tags":"python,django,postgresql,django-rest-framework","A_Id":69811960,"CreationDate":"2021-11-02T14:05:00.000","Title":"django.db.utils.ProgrammingError: set_session cannot be used inside a transaction","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am developing an ERP with groups of developers and we need to preserve customers data when deleting existing columns or table for Dajngo models and DB.\nFor Example:\nI added a column named columns1 and I gave the customer a release product of the System and then, but a week later I had to delete that new column but the customer have data stores in the column1 column, here how can I preserve data or solve this situation.\nAnother Example:\nI have a new column name column2 with unique attr but here the customer have data, but I can not add new column with out allowed it to store the null data, but in this situation I do not want to allow the null data in column column2 and ether I can't put default attr because it has unique attr.\nHow to solve these things in Django.","AnswerCount":3,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":61,"Q_Id":69820932,"Users Score":0,"Answer":"i think you need to add one Boolean field in the table field name delete if you want to delete the column don't delete it put delete field value to true. when you query add a filter with condition delete = false. i think this will work for 1st  condition","Q_Score":1,"Tags":"python,django","A_Id":69821045,"CreationDate":"2021-11-03T07:15:00.000","Title":"How do I preserve previous data when deleting new columns or deleting exists table in Django models?","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a spider that crawls for contact details from given url(s).\nWorks fine, but some of the data its collecting comes from css rules on the pages, for example some <svg><\/svg> attributes may appear as valid numbers. Or some image mappings in <scripts><\/script> like 404_static_desk_1920-w375@1x.jpg may appear as valid email addresses.\nHow can I make scrapy ignore certain tags and totally ignore html attributes?","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":42,"Q_Id":69836420,"Users Score":0,"Answer":"If you're using a CSS selector you can add :not(svg):not(script) at the end of your selector.\nFor example if you want to select all element except svg and script: *:not(svg):not(script)\nIf you edit your question and add an example of how you extract the data I could help you further.","Q_Score":0,"Tags":"python,scrapy,web-crawler","A_Id":69838712,"CreationDate":"2021-11-04T08:41:00.000","Title":"How to make Python Scrapy skip css rules and html attributes","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"api.telegram.org\/bot\/getWebhookInfo --> {\"ok\":true,\"result\":\"url\":\"\",\"has_custom_certificate\":false,\"pending_update_count\":0}}\napi.telegram.org\/bot\/getUpdates --> {\"ok\":false,\"error_code\":409,\"description\":\"Conflict: terminated by other getUpdates request; make sure that only one bot instance is running\"}\nI get these answers from API. How to fix them?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":718,"Q_Id":69880043,"Users Score":0,"Answer":"At each given time only one process may call getUpdates. You apparently have another process doing that.","Q_Score":0,"Tags":"python,telegram-bot","A_Id":69880193,"CreationDate":"2021-11-08T07:43:00.000","Title":"Error 409. Conflict: terminated by other getUpdates request; make sure that only one bot instance is running","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a Python program for customers to query price. Each time a customer can input some necessary information, the program will calculate and return the price to customer. Note: during the calculation process, the program also need to query a third party map service web API to get some information (such as google map API or other similar service).\nI have a website developed using web development tools such Wix, Strikingly. It offers a capability to customize a web page by simply input a block of HTML codes. So, I want to study the possibility of using Django to convent my python program into HTML (incl. add some user interface such as text box and button), which can then be pasted into the website to form a unique webpage.\nI am not sure if it is doable? Especially, the part of connecting third party map service API. Would Django be able to convert this part automatically to HTML as well? (how does it deal with API key and connection).","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":63,"Q_Id":69907582,"Users Score":1,"Answer":"Python itself runs only on the console, and is meant to be the backend in site development, whereas HTML is meant only to be the frontend, so no calculation or data fetching. Wix is a frontend tool with some content management that offers customization but still in the frontends (html\/css), and there's nothing more you could do with the content management other than using the built in table like feature. Trying to use the html generated by wix will be so much pain due to its css name optimization and making it quite unscalable.\n \nIf you don't wish to learn frontend building at all then you could look up other html generator tool for the frontend codes. From there, django itself is capable of building the entire website, using the html you generated as template, and passing the data you've computed into the templates. That's what Django is meant to do. In this case you would need to learn Django itself, which I would recommend if you intend to showcase your project as an interactive program rather just console logs.\nOther alternatives include converting your python codes into javascript, which is capable of doing calculations and fetching from APIs, and you can include the javascript code directly in HTML with the  tag.","Q_Score":0,"Tags":"python,html,django,google-maps-api-3,web-deployment","A_Id":69910598,"CreationDate":"2021-11-10T03:16:00.000","Title":"Conver Python to html using Django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"The error the application throws is:\nERROR:saml2.sigver:check_sig: \nERROR:saml2.response:correctly_signed_response: Failed to verify signature\nERROR:saml2.entity:Signature Error: Failed to verify signature\nERROR:saml2.client_base:XML parse error: Failed to verify signature\nAnd it seems to be a Windows problem. Does anyone know how should I implement this? The command used to verify the XML is:\nC:\\Windows\\xmlsec1.exe --verify --enabled-reference-uris empty,same-doc --enabled-key-data raw-x509-cert --pubkey-cert-pem C:\\Users\\me\\AppData\\Local\\Temp\\tmp8wssc6_f.pem --id-attr:ID urn:oasis:names:tc:SAML:2.0:assertion:Assertion --node-id _579304c7-f1c4-5918-83ee-4b33c5df1e00 --output C:\\Users\\me\\AppData\\Local\\Temp\\tmpw9lbnowc.xml C:\\Users\\me\\AppData\\Local\\Temp\\tmpcg9l7jik.xml\nAnd it returns b\"\".\nThanks in advance.","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":330,"Q_Id":69916491,"Users Score":0,"Answer":"For those who may face this problem in the future: Windows OS (still don't know certainly if the problem is caused due an OS particularity, I couldn't test it in other environments), pysaml2, and django-saml2-auth don't handle self signed certificates very well. I could solve the problem by just forking pysaml2\/django-saml2-auth and passing downloaded cert-files from IdP (.pem) manually.","Q_Score":0,"Tags":"python,django,azure-active-directory,saml-2.0","A_Id":69991218,"CreationDate":"2021-11-10T16:03:00.000","Title":"Problems while implementing SSO using Django SAML2 Auth and AzureAD","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"The error the application throws is:\nERROR:saml2.sigver:check_sig: \nERROR:saml2.response:correctly_signed_response: Failed to verify signature\nERROR:saml2.entity:Signature Error: Failed to verify signature\nERROR:saml2.client_base:XML parse error: Failed to verify signature\nAnd it seems to be a Windows problem. Does anyone know how should I implement this? The command used to verify the XML is:\nC:\\Windows\\xmlsec1.exe --verify --enabled-reference-uris empty,same-doc --enabled-key-data raw-x509-cert --pubkey-cert-pem C:\\Users\\me\\AppData\\Local\\Temp\\tmp8wssc6_f.pem --id-attr:ID urn:oasis:names:tc:SAML:2.0:assertion:Assertion --node-id _579304c7-f1c4-5918-83ee-4b33c5df1e00 --output C:\\Users\\me\\AppData\\Local\\Temp\\tmpw9lbnowc.xml C:\\Users\\me\\AppData\\Local\\Temp\\tmpcg9l7jik.xml\nAnd it returns b\"\".\nThanks in advance.","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":330,"Q_Id":69916491,"Users Score":0,"Answer":"Your question is a little vague.  It seems that you have sent an authenrequest and got a response and the application on your end is throwing the signature validation error.  If that is correct then you likely do not have the correct cacert from the identity provider defined in your application.\nQuestions about SAML and verifying XML signatures really need the original xml idealy in base64 so it is possible to try to check the signature.","Q_Score":0,"Tags":"python,django,azure-active-directory,saml-2.0","A_Id":69929629,"CreationDate":"2021-11-10T16:03:00.000","Title":"Problems while implementing SSO using Django SAML2 Auth and AzureAD","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I am running a python shell program in AWS Glue but after running for around 10 minutes its failing with error Internal service error. The logs or error logs does not give any information. Most of the time it fails by just saying Internal service error and rarely it runs for 2 days and gets timed out. The code uses pandas for transformations and it looks ok, it runs fine on local machine, necessary changes done so that it works on AWS glue[where it read\/write files to s3 location instead of local folder]. What could be wrong here? Any input is appreciated.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":116,"Q_Id":69927162,"Users Score":0,"Answer":"This issue was figured out. The problem was the job was unable to download the dependent python libraries due to an access issue to the s3 bucket. Once the access issue was resolved the job started running fine.","Q_Score":0,"Tags":"python,amazon-web-services,dataframe,amazon-s3,aws-glue","A_Id":70111762,"CreationDate":"2021-11-11T11:00:00.000","Title":"AWS Glue python shell Job fails with Internal Service error","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I have a kibana dashboard where there are some links provided for the user to click on. The link calls a flask service, which does some processing and redirects an URL using flask's redirect API, so that Kibana dashboard shows the processed values.  Now, the flask is replaced with seldon core for predictions. Is there any way to redirect an URL, like it can be done in flask?\nThanks in advance.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":55,"Q_Id":69927182,"Users Score":0,"Answer":"Have you completely removed the flask app? If not you can use the flask to handle all interactions with the frond end and just use Seldon for the predictions.\nThis is a micro-services approach. You can receive the request as you used to in flask and then from within flask call the Seldon micro-service, get the prediction and then redirect to the results page with the new results from within flask.\nThis is good because if you change your prediction logic or tools in the future you wont have to redo all this work. You ll just change the function that flask calls to get the results. Also you frond end and back-end will be agnostic of the implementation details of the prediction method.","Q_Score":0,"Tags":"python,flask,seldon-core","A_Id":69927340,"CreationDate":"2021-11-11T11:01:00.000","Title":"Flask redirect alternative in Seldon core","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"My goal is to upload a .zip file containing a python project, process it and return a json. To do that I have implemented a webapp, which takes the .zip file via drag and drop. I want to process this .zip file with AWS Lambda and return a json to the webapp, but since Lambda has to receive, unzip and read the files it forces me to use S3 I guess. I can make a direct upload from my webapps javascript to S3 and let S3 trigger Lambda for each uploaded file. But then I lose this typical request response semantic between my webapp and Lambda, since S3 trigger to Lambda are async and this way Lambda wouldn't know who to respond.\nI guess my question is somehow conceptual, so how can I basically send a request from my webapp in any way shape or form so that lambda can process a file sent by my webapp and send a response, in form of a json containing some info, back to the webapp?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":319,"Q_Id":69947536,"Users Score":0,"Answer":"You can not really have synchronous processing here. API Gateway will limit the Lambda response time to 29 seconds, so if your files are really small, you most likely wont be able to fit into this period.\nWhat I suggest doing is the following:\nUpload the file to S3 and trigger a Lambda after the the upload did successfully finished. Process the file with a Lambda function (this can run for 15 minutes). When the processing did finish, save the output into a known location, for example a DynamoDB table. You can poll this location from the front-end for being able to see if the processing did finished.","Q_Score":1,"Tags":"python,amazon-web-services,amazon-s3,aws-lambda,aws-sdk-js","A_Id":69948301,"CreationDate":"2021-11-12T18:27:00.000","Title":"File upload and processing via AWS Lambda with response","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Hey there i have just hosted my Django app on Heroku and i faced theses two problem :\n\n\"Failed to detect app matching no buildpack\"\nProcfile declares types -> (none)\n\n\nand when i run heroku logs --tail\ni get this\n\n2013-08-31T21:00:25.085053+00:00 heroku[router]: at=error code=H14 desc=\"No web processes running\" method=GET path=\/favicon.ico host=cristowip.herokuapp.com fwd=\"189.137.81.39\" dyno= connect= service= status=503 bytes=","AnswerCount":2,"Available Count":2,"Score":1.2,"is_accepted":true,"ViewCount":34,"Q_Id":69984460,"Users Score":0,"Answer":"1. For this Failed to detect app matching no buildpack:\n\nfind the platform you are working on and make a buildpack accordingly\n\nJava: pom.xml\n\nRuby: Gemfile\n\nNode.js:package.json\n\nPython:    requirements.txt \/ setup.py \/ Pipfile\n\nPHP:  composer.json \/ index.p\n\n\nEg if you are working on Django or flask make a buildpack in your root\nfolder named as  requirements.txt\n\n2. Procfile declares types -> (none) Do the following to resolve it\n\n\nfirst delete your Procfile but copy the inside content in your clipboard\nThen type the following command in your root dir.. folder\ngit init\ngit add .\ngit commit -m \"procfile-commit\"\ngit push heroku master\ncreate a new Procfile and paste the content from your clipboard\nThen again type these following command\ngit init\ngit add .\ngit commit -m \"procfile-commit\"\ngit push heroku master","Q_Score":0,"Tags":"python-3.x,django,heroku,heroku-cli","A_Id":69984664,"CreationDate":"2021-11-16T06:07:00.000","Title":"Problems getting while hosting django app on heroku","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Hey there i have just hosted my Django app on Heroku and i faced theses two problem :\n\n\"Failed to detect app matching no buildpack\"\nProcfile declares types -> (none)\n\n\nand when i run heroku logs --tail\ni get this\n\n2013-08-31T21:00:25.085053+00:00 heroku[router]: at=error code=H14 desc=\"No web processes running\" method=GET path=\/favicon.ico host=cristowip.herokuapp.com fwd=\"189.137.81.39\" dyno= connect= service= status=503 bytes=","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":34,"Q_Id":69984460,"Users Score":0,"Answer":"Check with heroku ps if there is any process running:\n$ heroku ps\nThat did not return anything.\nSo, a bit of search over the net and stackexchange pointed to something called the Procfile - which I had never used before. Apparently, heroku picks up the info on what to run automatically, but sometimes it jinxes. It is safer to put the information into a Procfile . This problem seems to keep recurring for over a year, but Heroku guys have not fixed it or fixed their tutorials, and that is where it all starts going downhill.\nNow follow the steps below to fix it for your installation :\n\nCreate a file called Procfile ( it is case sensitive - so capitalize P !) in the root directory of your application ( where you have the venv folder ) . On windows you will have to make sure that windows does not add a .txt extension . I use linux so it was just 'touch Procfile'.\nEdit the file and put in the following details for Django ( other apps you will need to figure out depending on what is needed to run it ) :\nweb: python website\/manage.py runserver 0.0.0.0:$PORT\nNote the spacing and the IP you need to give. If you miss out the last part, it will run on localhost which you will not be able to connect to from your machine.\ngit add the file and do a git push heroku master to push this file to the server. We are not done yet even though the push says everything is fine.\nRemember the heroku ps did not give any results earlier ? So, now you need to attach the process. Do this with the following command to add a web dyno :\n$ heroku ps:scale web=1\nScaling web processes... done, now running 1\nCheck your website now and it should be working !","Q_Score":0,"Tags":"python-3.x,django,heroku,heroku-cli","A_Id":69984495,"CreationDate":"2021-11-16T06:07:00.000","Title":"Problems getting while hosting django app on heroku","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"You are trying to add the field 'created' with 'auto_now_add=True' to user without a default; the database needs something to populate existing rows.\n\nProvide a one-off default now (will be set on all existing rows)\nQuit, and let me add a default in models.py","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":42,"Q_Id":69985457,"Users Score":0,"Answer":"when makemigration you will get to option\nchoose #1 then write\ntimezone.now","Q_Score":0,"Tags":"python,django","A_Id":69985542,"CreationDate":"2021-11-16T07:48:00.000","Title":"Why does django show me existing rows error?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"use django\nHow do I change the value of true or false to a text value type it I am checking the row in the entire table\n\n\n\n\nname item\ntype items\nactive\n\n\n\n\nitem1\n15.0\nTrue\n\n\nitem2\n15.0\nFalse\n\n\n\n\nchange values row active use jquery or django file view.py:\n\n\n\n\nname item\ntype items\nactive\n\n\n\n\nitem1\n15.0\ndisplayed\n\n\nitem2\n15.0\nstope\n\n\n\n\nhelp please","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":50,"Q_Id":69994851,"Users Score":0,"Answer":"Without code, it is difficult to give a precise answer.\nbut the easiest way to set value based on a boolean in javascript is to use a ternary operator.\nIf true, active will be set to \"displayed\", if false, active will be set to \"stope\"\nactive = boolean_value ? \"displayed\" : \"stope\"","Q_Score":1,"Tags":"javascript,python,jquery,django,django-templates","A_Id":69994998,"CreationDate":"2021-11-16T19:12:00.000","Title":"How do I change the value of true or false to a text value type it I am checking the row in the entire table Note the table is of type datatables?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm looking for the best approach\/practice to keep API views and Template views in Django. Making a separate app called API\/ or keeping all views together in the views.py file? There is also another approach that creates a directory within the main app called views\/ which includes views\/api.py and views\/visual.py and simply removes the traditional views.py. Which is better??","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":106,"Q_Id":69996674,"Users Score":0,"Answer":"I think it depends on the project.\nIf the API is going to be a big part then an app makes sense.\nPersonally I like the views directory, as you can separate views in to subsections if the project requires that.","Q_Score":0,"Tags":"python,django,api,django-rest-framework,directory","A_Id":69996800,"CreationDate":"2021-11-16T22:16:00.000","Title":"The best approach to keep API views and Template views in Django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm building a flask server in python with Cloud Run, for a chatbot to call.\nSometimes if user wants to do something with the chatbot, the bot need ask the user to login to a 3rd party server before doing the things.\nI have two routes:\n\nRoute 1 is \"\/login\", it returns a simple iframe which will open a login page in a 3rd party server, generate a \"session_id\", and save some info I already get to a global variable dict called \"runtimes\" with the \"session_id\" as key, so that I can use it later when visitor successfully logged in.\nRoute 2 is \"\/callback\/<session_id>\". After user successfully login to its account, the 3rd party server will call this route with a token in url parameters. Then I will use the \"session_id\" to read the saved info from \"runtimes\", and do later things.\n\nIt works well in my local machine. But in Google Cloud Run, because it support multiple instances,  sometimes it will trigger a new instance when server calls \"callback\", so it cannot get the \"runtime\" because they are in different instances.\nI know that I can save the runtimes dict to a database to solve this problem, but it looks too overkill...Just not seem right.\nIs there any easy way that I can make the \"runtimes\" be shared between instances?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":48,"Q_Id":70001125,"Users Score":1,"Answer":"The solution here is to use a central point of storage: database, memorystore, firestore,... something out of Cloud Run itself.\nYou can also try the Cloud Run execution runtime v2 that allow you to mount a network disk, such as Cloud Storage or Filestore. You can imagine to store the session data in a file which has the name of the session ID.\nNote: On Cloud Run side, something is cooking, but it's not 100% safe, it will be a best effort. A database backup will be required even with that new feature","Q_Score":0,"Tags":"python,google-cloud-run","A_Id":70006964,"CreationDate":"2021-11-17T08:38:00.000","Title":"How to share a global dict between Cloud Run instances in python?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"My DB is Postgres and Code in Django,\nI live a project daily but I want old DB in a new project which has only just some updates in it but If I don't Update it It shows migration error and if I use --fake then on that page it will show similar error 'Programming Error Column Does Not Exist' I tried each and every way pls help me.\nThanks","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":37,"Q_Id":70019679,"Users Score":0,"Answer":"After trying for many days I notice that there are errors in fields not matching so I just replace or update my old project models.py to my new project models.py and make migrations and migrate again and then I go to my new project and I run migrate and it runs correctly.","Q_Score":0,"Tags":"python,django,postgresql,web-hosting","A_Id":70108166,"CreationDate":"2021-11-18T12:16:00.000","Title":"I have to change db everytime when project updated What Should I do?","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"hey I'm currently working on a website (Photo selling services) and now I wanna deploy it on a public host,\nI didn't change the database and I'm using Django's SQLite as my database, Is it gonna be a problem or it's fine?\nand also I'm handling the downloads with my views and template and the files (photos) will be downloaded from my database and I wanted to know do I need one host for my application and another for putting my photos in? or I can just run the whole website on one host without a problem ( same as I'm running it on my local host).","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":119,"Q_Id":70019753,"Users Score":0,"Answer":"I prefer not to use SQLite in production because:\n\nIt is just a single file and it may get deleted suddenly by anyone that has access to that.\nNo user management.\nLimited data types.\n\nFor serving files on a heavy-traffic website it's good to have CDN to serve files from.","Q_Score":0,"Tags":"python,django,database,sqlite,host","A_Id":70019921,"CreationDate":"2021-11-18T12:21:00.000","Title":"putting a Django website on production using sqlite data base","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"The data returned by the find_all() method has class of bs4.element.ResultSet, and according to my research is a sub-class of lists, so assuming it is an ordered, but I still want to ask to make sure  my assumption is right, since I very beginner in programming, I don't want to trust myself too much and documentation doesn't really state that it is an ordered but in honesty I just scanned it not fully read it.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":32,"Q_Id":70033010,"Users Score":1,"Answer":"It is may not a list in the sense of an ordered list, the entries are in the order in which they are found in the tree, their natural nesting order.\nIf the elements you are selecting in the tree are \"ordered\", so is the list.","Q_Score":0,"Tags":"python,web-scraping,beautifulsoup","A_Id":70033304,"CreationDate":"2021-11-19T10:02:00.000","Title":"does Beautiful Soup find_all() returns an ordered list?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am building a backend using Python and Flask, everything worked fine, but after some updates on the Pipfile (updated some packages) I got this error when I try to run the app (flask run):\nError: While importing 'wsgi', an ImportError was raised.\nEnvironment:\n\nUbuntu 20.04\nPython 3.8.5\nFlask 2.0.2\npipenv 2020.8.13\npip 21.2.4\n\nAlso, I tried with pyenv 1.2.21\nI tried to run the backend in VSC but got the same error.\nAlso, I tried to remove the interpreter and set it up again, remove Pipfile.lock, and pipenv install again...\nI have googled but found nothing about this error.\nThanks in advance!","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":876,"Q_Id":70035642,"Users Score":0,"Answer":"Add the file __init__.py to the application directory","Q_Score":0,"Tags":"python,ubuntu,flask,wsgi,pipenv","A_Id":70692690,"CreationDate":"2021-11-19T13:30:00.000","Title":"Error: While importing 'wsgi', an ImportError was raised. Python Flask Ubuntu 20.04","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am building a backend using Python and Flask, everything worked fine, but after some updates on the Pipfile (updated some packages) I got this error when I try to run the app (flask run):\nError: While importing 'wsgi', an ImportError was raised.\nEnvironment:\n\nUbuntu 20.04\nPython 3.8.5\nFlask 2.0.2\npipenv 2020.8.13\npip 21.2.4\n\nAlso, I tried with pyenv 1.2.21\nI tried to run the backend in VSC but got the same error.\nAlso, I tried to remove the interpreter and set it up again, remove Pipfile.lock, and pipenv install again...\nI have googled but found nothing about this error.\nThanks in advance!","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":876,"Q_Id":70035642,"Users Score":0,"Answer":"Try python wsgi.py and check output, maybe you should install additional requirements.","Q_Score":0,"Tags":"python,ubuntu,flask,wsgi,pipenv","A_Id":72102564,"CreationDate":"2021-11-19T13:30:00.000","Title":"Error: While importing 'wsgi', an ImportError was raised. Python Flask Ubuntu 20.04","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm trying to get the location geotag from an already posted Instagram post using the Basic Display Instagram API?\nI can't find any endpoints that let me get the location. Am I missing something or is that something we just cannot do?","AnswerCount":3,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":233,"Q_Id":70049191,"Users Score":0,"Answer":"This can be done by opening the post, right-clicking on top of the post, tick mark Properties, and then Location. You will get a map with location coordinates in decimal degrees which you can use to pinpoint that spot on Google Maps or another mapping service. APIs calculate this too but APIs are for developers only so it is not accessible to an average Instagram user unless you're building an app related to it.","Q_Score":0,"Tags":"python,instagram-api","A_Id":70061412,"CreationDate":"2021-11-20T19:27:00.000","Title":"How to get the location geotag from an Instagram post using the API","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I had made this form in Django which takes some data and when a save button is clicked it saves it to the database. It stores the data that I give, but I noticed that every time I refreshed the page that contained the form it would automatically save an object with the Id as none and all values set to null. I wanted to know how to write a function that says the form only submits to the database when the save submit button is clicked and not when reloading the page and making a dummy object in the database.","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":42,"Q_Id":70051821,"Users Score":0,"Answer":"I think the problem here is in the view, more specifically, how you're handling the request inside the view.\nit seems that you're saving the object no matter what's the request method, that's why even refreshing the page will save a new object.","Q_Score":0,"Tags":"python,django,forms,web,error-handling","A_Id":70051878,"CreationDate":"2021-11-21T04:25:00.000","Title":"How to solve the error when dummy data gets stored in Django database with its id as none and all values as null","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am gonna have an open source app in which it needs to send some data to an fastapi python api, how can i make it so that only the app can make requests to the api and not some random person abusing the api endpoint?","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":106,"Q_Id":70061034,"Users Score":1,"Answer":"There are so many ways to do that. Even some of the techniques doesn't bother the API endpoint.\n\nIP Restriction: You can restrict an IP from cloud provider which IP can call the API. Even you can have multiple IPs.\nAPI KEY: You can provide an API KEY to the API client. When the request come along with the provided key then you work on it otherwise ignore.\n\nThe IP method is much better than doing on the application end.","Q_Score":0,"Tags":"python,api,fastapi","A_Id":70061121,"CreationDate":"2021-11-22T04:54:00.000","Title":"Only let one app have access to api endpoint?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I started using the python django framework.  Can I open a dynamic site without using JavaScript?  I find python easy to use and for some reason I don't like JavaScript.","AnswerCount":1,"Available Count":1,"Score":0.537049567,"is_accepted":false,"ViewCount":58,"Q_Id":70069196,"Users Score":3,"Answer":"In order to implement dynamic elements (such as displaying messages at button click without updating the site) you need to instruct the browser to change the respective DOM elements.\nCurrently the only fully supported language that browsers understand for that purpose is Javascript.\nThere are Javascript alternatives such as Dart or Typescript, but they need to be transpiled to Javascript to work with browsers.\nSo, practically you cannot build a dynamic website without Javascript at the moment.","Q_Score":0,"Tags":"javascript,python,django,dynamic","A_Id":70069576,"CreationDate":"2021-11-22T16:32:00.000","Title":"A dynamic site that does not use JavaScript","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am able to login and receving SAMLResponse through HTTP-Redirect binding and also I can able to decrypt using privatekey and able to retrive claims.\nMy question is still do we need to verify saml response(ADFS)? if its how to do that\ndo I need to use IP(identity provider) public key ? will it available in IP(Metadata)?\nI have SAML response in the following request parameter\nSAMLResponse = base64(deflate(data))\nsignature = hashvalue\nsigAlg = sha256\nhow to validate?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":111,"Q_Id":70076829,"Users Score":0,"Answer":"Yes you need to also verify the digital signature of the SAML response. This is because the encryption is done using your public this is available to anyone that has access to your metadata and does not give any assurance that it was produces by your IdP.\nTo verify that you IdP is the one that produced the SAMLResponse you verify the digital signature of the SAMLResponse using the IdP public key. This is typically available in the IdP metadata.","Q_Score":0,"Tags":"python,saml,adfs","A_Id":70077533,"CreationDate":"2021-11-23T07:21:00.000","Title":"How to verify ADFS encrypted SAML Response (Assertion)","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"so I have a server and did an api for it so I can update patch files to my server, however now when I update the some batch files in the server, I always have to stop running the server and than run it again to see the changes, I was wondering what can I do so that my server restart it's self","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":62,"Q_Id":70091885,"Users Score":0,"Answer":"Yes you can,\nMake requests api send a json like {'do': 'refresh_server'}-\nthen just type exit(), then run the file again using the os module.\nEdit: This is solution for windows","Q_Score":0,"Tags":"python,api","A_Id":70091948,"CreationDate":"2021-11-24T07:05:00.000","Title":"How can I restart my server using a request api","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I am trying to run a flask app inside a docker container on AWS ECS. I created a task and assigned it to a cluster, but now I cannot ping the public ip adress of this task.\nI also cannot send the request via POSTMANN as it was possible when I ran the docker container from the same image on my local machine. Any help is highly appreciated! Thanks","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":54,"Q_Id":70120466,"Users Score":0,"Answer":"After two weeks I finally found the answer to this problem! If you run your task inside the awsvpc, you need to create an inbound rule, which states the ip adress from where you want to send the POST request with Postman. After setting up the rule, the aws task inside the cluster can be accessed.","Q_Score":0,"Tags":"python,amazon-web-services,docker,networking","A_Id":70211673,"CreationDate":"2021-11-26T06:44:00.000","Title":"How to connect to task inside a cluster on AWS ECS via Postmann?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"import websocket\nSOCKET = 'wss:\/\/socket.coinex.com\/'# This is the problem\ndef on_open(ws):\nprint('oppend connection')\ndef on_close(ws):\nprint('close connection')\ndef on_message(ws, message):\nprint('received message')\nws = websocket.WebSocketApp(SOCKET, on_open=on_open,on_close=on_close, on_message=on_message)\nws.run_forever()","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":224,"Q_Id":70123734,"Users Score":0,"Answer":"are you sending request parameters?\nmaybe thats the problem, and also websocket stream is limited to only one market subscription.","Q_Score":0,"Tags":"python,websocket,cryptography,bots,trading","A_Id":70592961,"CreationDate":"2021-11-26T11:31:00.000","Title":"I`m trying to build crypto trading bot in coinex, but i can`t find websocket stream link for coinex(for accessing to candle sticks)","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am having trouble authenticating against a web service that has Oauth provided by google.\nBasically, I want to login with my google account to a web page to do some scraping on it.\nAs the web service is not mine, I don't have the app secret_key, only the clientID, redirect_URL and scope that I could recover from seeing the parameters of request method used while being logged in.\nOnce authenticated, the web page only requieres a cookie named SID (Session ID I would guess) to answer back as an authenticated user. There is no Bearer token, just the SID cookie.\nIs it possible to automate this type of authentication? I've read many topics related but they all need the secret_key which I don't have because I'm not the owner of the app.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":108,"Q_Id":70128506,"Users Score":0,"Answer":"(Cannot comment due to rep)\nYes, what you're asking is possible. You could theoretically follow and match all the requests to authenticate yourself successfully to get the SID and perform scraping, albeit this would be a very difficult task for some basic web-scraping, it's like programming a full-blown scientific calculator to do 5 + 5. What you are asking is a really difficult task, you're going to run into all sorts of security issues and be asked for phone\/authenticator app\/email verification when attempting to login to your account with Python requests and then you'd need to keep track of those security cookies and keeping them updated, it's a real mess and would be extremely difficult for anyone.\nI think the better method would be to manually authenticate yourself and get the SID cookie and hard-code that into your scraper within the cookie HTTP header.\nI understand this brings up the concern of what to do when the SID cookie expires. Since you haven't said the site, It would be hard for me to imagine a site that makes you authenticate yourself with Google often rather than having their own internal SID\/JWT refreshing system to keep you logged in.\nMy recommendations would be:\n\nCheck the expiration of the SID cookie, if it's viable to manually copy-and-paste it after authenticating yourself, do that.\nIf the SIDs expire soon, check if there's an API request anywhere to get yourself a new SID (Without going through the OAuth again), in your Network panel look for the set-cookie response header setting a new SID, you might need to change and keep track of these inside your program but it'll be much easier than writing a program to login to Google.\nIf there's no way to refresh the SID and they expire often and you need to do long-term web scraping and sitting there getting a new cookie manually every 30 minutes isn't enough, I'd recommend looking into doing this with Puppeteer\/Chromium as it'll be much easier than doing it via Python HTTP requests.","Q_Score":0,"Tags":"python,oauth,requests-oauthlib","A_Id":70145552,"CreationDate":"2021-11-26T18:07:00.000","Title":"How to login by oauth to third party app with python","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"So i am working on a small project that is primarily web scraping. I have one small problem though. I need to check if a specific element of the website has a background color of red, or green. To be able to see the element, i need to insert some text into a text field first... How would i go about that?\nI am scraping with BeautifulSoup right now.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":67,"Q_Id":70152698,"Users Score":0,"Answer":"Giving the exact code would help us to solve the problem.\nIf you want to interact with the webpage, you should use packages like selenium. That will help you add a text in the textfield. After performing this operation, you may see the clasfs\/style of the required item if changed.","Q_Score":0,"Tags":"python,web-scraping","A_Id":70153308,"CreationDate":"2021-11-29T09:55:00.000","Title":"Insert text into text field with python, for web scraping","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm creating webapp and using DRF on the server. I want to start function on server, after event on frontend (for example - button clicked)\nExample:\n\nUser is typing '2021' in input field on frontend and click the button ,,generate\"\nThe '2021' is transfering to function ,generate_list_of_sundays(year)' on server\nThe function return list of all sundays in typed year\nList is displayed to user on frontend\n\nOf course this is simple example. I want to know how to get this type of communications between frontend and backend.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":103,"Q_Id":70153104,"Users Score":0,"Answer":"What you want is to expose a REST API using the Django REST Framework and have HTTP endpoints (URLs) mapped to functions on your backend (e.g. generate_list_of_sundays()).\nThen, on the frontend, the button would submit an HTTP request to the given endpoint (i.e. could be POST, GET and so on).\nThe frontend can either use a form to submit the information or something like AJAX.\nYou could also avoid using the REST API approach and have Django views that extract data from the HTTP request and act upon it, but while it might seem easier, this would lead to a poor user experience.","Q_Score":0,"Tags":"python,django,rest,django-rest-framework","A_Id":70153200,"CreationDate":"2021-11-29T10:30:00.000","Title":"Django REST Framework - how to start functions on backend after event on frontend","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"So I have a base.html template and a review_result.html template that extends the base.html template. The base.html template has a script tag with lots of function. I am going to move a function called format from a script tag in the review_result.html to the base.html file. How do I then call the format function in review_result.html from base.html?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":49,"Q_Id":70163465,"Users Score":0,"Answer":"Django templates just become static html (script tags included). If you extend from another template and it includes your JavaScript, then you should be able to call the function as though your format function were in your review_result.html template.","Q_Score":0,"Tags":"python,html,django,templates,django-templates","A_Id":70164362,"CreationDate":"2021-11-30T02:06:00.000","Title":"Calling a function from another html template","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have installed the robot framework and related libraries. Then I have installed the allure framework.\nI have followed the following command in cmd prompt to install allure framework,\n\npip install allure-robotframework\nrobot --listener 'allure_robotframework;.\/results\/allure'\n\nBut when I run the second command, it displays below error message\n[ ERROR ] Expected at least 1 argument, got 0.\nPlease help me to solve this issue.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":90,"Q_Id":70168759,"Users Score":0,"Answer":"from the command you're running it seems you're missing the tests that need to be executed.\nmake sure to pass the tests folder\/suite to be executed as parameter:\nrobot --listener 'allure_robotframework;.\/results\/allure' tests\/foo\/baz.robot","Q_Score":0,"Tags":"python,python-3.x,robotframework,allure","A_Id":70169207,"CreationDate":"2021-11-30T11:39:00.000","Title":"Allure Framework: Expected at least 1 argument, got 0","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"This isn't absolutely necessary but it would make the code a lot shorter and presumably quicker. I would like to perform, using Selenium, the same actions on web elements elements that normally belong to the same class but if one of the elements is clicked, its class is dynamically changed to designate that it's \"the active\" element. I basically can only locate these elements by class name (XPATH). Is there a way to store elements that belong to different classes to the same variable to then perform manipulations on that variable?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":44,"Q_Id":70173413,"Users Score":1,"Answer":"If using XPath is the only option, you could take advantage of using logical operators in your selectors for your elements.\nFor example the following XPath:\n\/\/div[starts-with(@class, 'myclass')]|\/\/div[starts-with(@class, 'myclass active')]\nThe above XPath says 'find all div tags which have a class which starts with 'myclass' OR all div tags which start with 'myclass active'.\nOther XPath expressions like contains can be used to match text in any attribute on an element\/collection of elements. Be careful when choosing the selector though to ensure that only the elements you want selected are selected .","Q_Score":0,"Tags":"python,selenium,selenium-chromedriver","A_Id":70174982,"CreationDate":"2021-11-30T17:13:00.000","Title":"Is there a way to contain web elements with different attributes in the same variable?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm working on a project where I have a serializer with 2 DateTimeFields:\ncreatedAt = serializers.DateTimeField(required=True,format='%Y-%m-%dT%H:%M:%S.%fZ')\nupdatedAt = serializers.DateTimeField(required=True,allow_null=True,format='%Y-%m-%dT%H:%M:%S.%fZ')\nThe input data for those 2 fields are:\n\"createdAt\":  datetime.strptime(\"2021-06-22T11:17:09.460Z\", '%Y-%m-%dT%H:%M:%S.%fZ'),\n\"updatedAt\":  datetime.strptime(\"2021-06-24T06:50:58.030Z\", '%Y-%m-%dT%H:%M:%S.%fZ'),\nHowever, things don't go smoothly because when I check the validated_data, those fields have this structure:\ncreatedAt: 2021-06-22 11:17:09.460000+00:00\nupdatedAt: 2021-06-24 06:50:58.030000+00:00\nIs there any reason why those 4 zeros and the +00:00 are added? I have checked the documentation about this, even the ISO-8601 in Wikipedia, but I haven't been able to find a clue about why this is happening.\nThanks in advance.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":102,"Q_Id":70184277,"Users Score":0,"Answer":"I guess the datetime formats you've set in serializer fields are used to represent the dates in string format (in other words, it's how Django converts a timestamp into a string representation, to be returned by API.\nWhen you mention validated_data it means you're looking at the opposite direction of the conversion \u2014 string representations of timestamps are converted into actual timestamps.\n2021-06-22 11:17:09.460000+00:00 looks like an actual timestamp, printed in Python. There are 6 numbers for microseconds and a timezone offset.\nI'd check the type of this value, probably it's not even a string, but a datetime instance.","Q_Score":1,"Tags":"python,django-rest-framework,python-datetime","A_Id":70184409,"CreationDate":"2021-12-01T12:32:00.000","Title":"Django REST DateTimeField adds 0000+00:00 to datetime object","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"We are using Python robot framework automation. Is it possible to download and install edge driver automatically while script run based on the version passed as parameter?We are using selenium 3.14 , robot framework selenium library 4.5.0 and python 3.7","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":143,"Q_Id":70187322,"Users Score":0,"Answer":"No, that is not possible. Installation of any webdriver must be done before running tests, because it requires to have prepared the environment variable PATH and proper execution permissions for the webdriver.","Q_Score":0,"Tags":"python,selenium,robotframework","A_Id":70189461,"CreationDate":"2021-12-01T15:54:00.000","Title":"edge driver is not getting installed using robotframework","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"after model training, spacy has generated model\\model-best and model\\model-last folders. What's the difference between the two models and which one should be used for predictions?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":220,"Q_Id":70195392,"Users Score":1,"Answer":"model-best is the model that got the highest score on the dev set. It is usually the model you would want to use.\nmodel-last is the model trained in the last iteration. You might want to use it if you resume training.","Q_Score":1,"Tags":"python,machine-learning,nlp,spacy,spacy-3","A_Id":70209537,"CreationDate":"2021-12-02T07:13:00.000","Title":"difference between model-best and model-last in spacy","Data Science and Machine Learning":1,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Having an issue when using flask and flask-wtf. The issue is that for some reason vscode is defaulting to global rather than the newly created virtual environment. In vscode I will click open folder, create the folder and open it in vscode. Then I'll write my code out and then open terminal in vscode and write: python -m venv my_venv, then on the lower left-hand side I will select it as my virtual environment. I then re-open the terminal, write: pip -V and the pip it is directed to is the folder directory with my_venv in the path name.\nThen I pip install flask and flask-wtf, check that they are installed with pip list. Everything looks good until I run and vscode says: ModuleNotFoundError: No module named 'flask-wtf'. But when I go to my global environment and where flask is installed too it runs fine. Something is happening to where the python code is recognizing the original flask and not the one in my virtual environment. How do I ensure that the version of flask is the one in the virtual environment and not others installed on my machine.\nThanks","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":66,"Q_Id":70204886,"Users Score":0,"Answer":"If you are in your terminal in vscode, it should append your command line with your virtual environment name.\nSo, usually it would show\nPS \\path\nBut if your environment is running, it will show\n(venv name) PS \\path\nIf it is now showing, be sure to reactivate your virtual environment from your project directory","Q_Score":0,"Tags":"python,visual-studio-code,virtualenv","A_Id":70205297,"CreationDate":"2021-12-02T18:43:00.000","Title":"How do I ensure python project in VSCODE is using virutal envirnoment and not defaulting to global?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"There is a case for creating a client.\nController -> CreateClientRequest -> CreateClientUseCase -> ClientEntity [assigned: UserEntity]\nThe client is assigned a responsible person assigned.\nAfter creation, i need to notify the client about the assigned user, and the user about the incoming client.\nIn this case, the user has notification settings like: Email, Push, SMS.\nQ: How do i implement this kind of aggregation in a clean architecture?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":95,"Q_Id":70211262,"Users Score":1,"Answer":"You can create a dedicated notification service, fully decoupled of the client\/user entities, that handles notifications in a generic way.\nWhenever the assignment is completed, you use that service to fire 2 notifications, one for each entity.\nHaving this service decoupled will make the architecture more robust, because you can test it in a generic way, but also reuse it for other use-cases, not to mention that it follows the separation of concerns.","Q_Score":0,"Tags":"python,java,architecture","A_Id":70220788,"CreationDate":"2021-12-03T08:12:00.000","Title":"Notifications with clean architecture","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm building a Python application using FastApi and I'm using JWT and OAuth2 password flow to authenticate the users, as specified in their documentation. When a user logs in it receives a token, generated with HS256 algorithm and a user secret key. This token is stored as local storage in the browser. Then for each request that depends on the current logged in user, the token is send to the backend, decoded using the same secret key and the needed information is provided. In my app I have a PostgreSQL database and my question is where should I store those secret keys used to generate tokens for different type of users that I have and to keep those keys secured.\nThank you","AnswerCount":1,"Available Count":1,"Score":0.3799489623,"is_accepted":false,"ViewCount":480,"Q_Id":70212485,"Users Score":2,"Answer":"A recommended approach is to:\n\nCreate an .env file and store the SECRET in it\nCreate one settings.py file in root folder of the project\nImport SECRET from .env to a variable in settings.py and use it","Q_Score":2,"Tags":"python,security,oauth-2.0,jwt,fastapi","A_Id":70234896,"CreationDate":"2021-12-03T10:02:00.000","Title":"Secure way of storing JWT secret key used to encode\/decode token data","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a FastAPI app having one API which needs to run some tasks in parallel. I Have implemented threadpoolexecutor and it's working fine. The only problem is everytime a request comes to that API and execution comes to threadpool executor, it creates new threads instead of using the old one. Upon finishing the execution, threads are still present and idle. They are not getting closed.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":183,"Q_Id":70227246,"Users Score":0,"Answer":"The issue has been resolved now.\nThe problem was that in the init  I was calling the playwright.start() method which starts some connection but the stop method was not being called in teardown.","Q_Score":0,"Tags":"python,fastapi,threadpoolexecutor,concurrent.futures","A_Id":70231749,"CreationDate":"2021-12-04T16:03:00.000","Title":"Python concurrent.futures threadpoolexecutor thread management","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"Im using python 3.9 and coverage 6.2\nI would like to have a record of my most recent coverage but Im not sure if I should upload my .coverage file. Im guessing no since it sort of has info about my directory layout. So i would like to know how I should go about that, is it even standard to upload such a thing? If not, why not?\nI also generated the htmlcov folder but I didnt upload it since it has a default gitignore for the entire folder.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":287,"Q_Id":70297207,"Users Score":1,"Answer":"Most people don't upload the .coverage or HTML report, because they don't need to track it over time.  But there's no harm in uploading them.  You mention directory layout as if it was a secret to protect, but isn't your layout already committed to GitHub?\nIf you want to commit the HTML report, you will need to remove the .gitignore file in the directory.","Q_Score":1,"Tags":"python,coverage.py","A_Id":70304570,"CreationDate":"2021-12-09T21:55:00.000","Title":"Python, Should I upload my .coverage file to my github repository?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am building a Markdown file content search using Elasticsearch. Currently the whole content inside the MD file is indexed in Elasticsearch. But the problem is it shows results like this [Mylink](https:\/\/link-url-here.org), [Mylink2](another_page.md)\nin the search results.\nI would like to prevent indexing of hyperlinks and reference to other pages. When someone search for \"Mylink\" it should only return the text without the URL. It would be great if someone could help me with the right solution for this.","AnswerCount":3,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":126,"Q_Id":70307347,"Users Score":0,"Answer":"You need to render Markdown in your indexing application, then remove HTML tags and save it alongside with the markdown source.","Q_Score":1,"Tags":"python,elasticsearch,search,indexing","A_Id":70310142,"CreationDate":"2021-12-10T16:08:00.000","Title":"Elasticsearch prevent indexing of Markdown hyperlinks","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Here is my situation:\nI need to present a demo of an online dashboard app at the beginning of January.\nSkills: I know some Python (especially the data science frameworks) but have not yet worked with Django \/ flask or other languages than Python.\nGoal: The app does not have to have many features. Mainly: login and data visualization, maybe some filters like date or category. It especially needs to LOOK good but can involve some parts being hard-coded.\nMy first approach: I saw bootstrap templates that look good already but is using Django with such templates the most efficient way for only a demo? There is some excellent way that may not even involve extensive coding but still offers some flexibility regarding page elements?\nThank you for your advice!","AnswerCount":2,"Available Count":2,"Score":0.0996679946,"is_accepted":false,"ViewCount":55,"Q_Id":70309489,"Users Score":1,"Answer":"Just adding to Luiz' comment. Django has everything for you at your fingertips. I strongly recommend using django to make this project. One major reason I recommend Django is because they are the first ones to really jump on any new Security Risks and make sure Django doesn't ever run into them.","Q_Score":0,"Tags":"python,django,web,bootstrap-4","A_Id":70310522,"CreationDate":"2021-12-10T19:24:00.000","Title":"How to build a demo for a Web Dashboard App in 28 days?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Here is my situation:\nI need to present a demo of an online dashboard app at the beginning of January.\nSkills: I know some Python (especially the data science frameworks) but have not yet worked with Django \/ flask or other languages than Python.\nGoal: The app does not have to have many features. Mainly: login and data visualization, maybe some filters like date or category. It especially needs to LOOK good but can involve some parts being hard-coded.\nMy first approach: I saw bootstrap templates that look good already but is using Django with such templates the most efficient way for only a demo? There is some excellent way that may not even involve extensive coding but still offers some flexibility regarding page elements?\nThank you for your advice!","AnswerCount":2,"Available Count":2,"Score":0.0996679946,"is_accepted":false,"ViewCount":55,"Q_Id":70309489,"Users Score":1,"Answer":"My recommendation is django, since the user management is implicit within the framework, for the graphics you can use ChartJs and as for html style use Bootstrap4 , all of them are very easy to integrate into Django and there is a lot of information, in 2 weeks you have it all.","Q_Score":0,"Tags":"python,django,web,bootstrap-4","A_Id":70310532,"CreationDate":"2021-12-10T19:24:00.000","Title":"How to build a demo for a Web Dashboard App in 28 days?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have many different versions of Python, but a version that I use and that terminal show me if use command Python \u2013 version is 3.10.0.\nWhen I use command pip list I got a big list of library, including the one I recently installed odfpy.\nI open VsCode, choose Python version 3.10.0 and try to import odf but...\nModuleNotFoundError: No module named 'odf'\nFor sure I need to set something on VsCode or change some configuration in Linux but I cannot find a normal explanation of how to solve this issue.\nIf I change the Python version in VsCode with 3.8.10, odfpy (and also Django just installed) is recognized. So I suppose that, even if the Python version selected on the terminal is 3.10.0, when I pip install something, is installed on version 3.8.10. How do you manage this?","AnswerCount":3,"Available Count":3,"Score":0.0,"is_accepted":false,"ViewCount":549,"Q_Id":70322988,"Users Score":0,"Answer":"In my case i was getting same error while using import-export django module. Installing odf library didn't worked got same error. I resolve this issue by simply pip install tablib==0.14.0.","Q_Score":0,"Tags":"python,visual-studio-code","A_Id":71303960,"CreationDate":"2021-12-12T11:06:00.000","Title":"No module named 'odf' due to wrong Python version","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have many different versions of Python, but a version that I use and that terminal show me if use command Python \u2013 version is 3.10.0.\nWhen I use command pip list I got a big list of library, including the one I recently installed odfpy.\nI open VsCode, choose Python version 3.10.0 and try to import odf but...\nModuleNotFoundError: No module named 'odf'\nFor sure I need to set something on VsCode or change some configuration in Linux but I cannot find a normal explanation of how to solve this issue.\nIf I change the Python version in VsCode with 3.8.10, odfpy (and also Django just installed) is recognized. So I suppose that, even if the Python version selected on the terminal is 3.10.0, when I pip install something, is installed on version 3.8.10. How do you manage this?","AnswerCount":3,"Available Count":3,"Score":0.0,"is_accepted":false,"ViewCount":549,"Q_Id":70322988,"Users Score":0,"Answer":"Please check which pip you are using through the command of pip --version.\nAfter you switch the python interpreter in the VSCode, please create a new terminal, and make sure it has activated the environment you have selected.","Q_Score":0,"Tags":"python,visual-studio-code","A_Id":70329602,"CreationDate":"2021-12-12T11:06:00.000","Title":"No module named 'odf' due to wrong Python version","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have many different versions of Python, but a version that I use and that terminal show me if use command Python \u2013 version is 3.10.0.\nWhen I use command pip list I got a big list of library, including the one I recently installed odfpy.\nI open VsCode, choose Python version 3.10.0 and try to import odf but...\nModuleNotFoundError: No module named 'odf'\nFor sure I need to set something on VsCode or change some configuration in Linux but I cannot find a normal explanation of how to solve this issue.\nIf I change the Python version in VsCode with 3.8.10, odfpy (and also Django just installed) is recognized. So I suppose that, even if the Python version selected on the terminal is 3.10.0, when I pip install something, is installed on version 3.8.10. How do you manage this?","AnswerCount":3,"Available Count":3,"Score":0.0,"is_accepted":false,"ViewCount":549,"Q_Id":70322988,"Users Score":0,"Answer":"I also use VS code and use Python 3.10 and i had try to download the odfpy which has gone alright, i use the command python -m pip install odfpy\ntry and see if it work for you though.\nIf it does not work, maybe try and create a virtual environment if you haven't created it yet.","Q_Score":0,"Tags":"python,visual-studio-code","A_Id":70329840,"CreationDate":"2021-12-12T11:06:00.000","Title":"No module named 'odf' due to wrong Python version","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"Actually I am trying to download videos with pytube in 480p but getting an error like\nAttributeError: 'NoneType' object has no attribute 'download'","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":71,"Q_Id":70343692,"Users Score":0,"Answer":"I guess you need to uninstall pytube and install pytube3\npip install pytube3","Q_Score":0,"Tags":"python,download,pytube","A_Id":70343772,"CreationDate":"2021-12-14T04:10:00.000","Title":"Pytube giving an error for downloading video in 480p resolutio","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am creating a Django project where I have to use existing database data. The existing database is Postgres and it is hosted on Aws. My goal is to copy them from Aws to my local Postgres DB and use in my project.\nThanks","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":54,"Q_Id":70345903,"Users Score":0,"Answer":"You can dump the database from AWS and import locally from tools like Mysql workbench","Q_Score":0,"Tags":"python,django,postgresql,amazon-web-services","A_Id":70347223,"CreationDate":"2021-12-14T08:35:00.000","Title":"How to migrate remote postgres db into my local django project?","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Hello i am working on a small project using electron js and flask.\nI was wondering if there is a way to compile my flask server as an exe.\nAnd run it in the background so the frontend(electron js) can send get and post requests\nto my url e.g(get(\"http:\/\/localhost:5050\")) something like that.\nAny help would be appreciated.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":30,"Q_Id":70347739,"Users Score":0,"Answer":"My problem was found and it was because i was not including the line\napp.run(port=<any_port>) # dont use 80\nso i fixed it hope this helps some of you\nThe line i used is:\napp.run(debug=True,port=5050)","Q_Score":0,"Tags":"javascript,python,flask,electron","A_Id":70352952,"CreationDate":"2021-12-14T10:58:00.000","Title":"How to run flask server as portable elf","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Error:\n\nodoo.models: Access Denied by ACLs for operation: read, uid: 4, model: product.template, fields: activity_ids\nYou do not have enough rights to access the fields \"activity_ids\" on Product Template (product.template). Please contact your system administrator.\"\n\nEven when I wrote this in model.access, I still have the same issue:\n\nmail.access_mail_activity,access.mail.activity,mail.model_mail_activity,,1,1,1,1","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":418,"Q_Id":70368070,"Users Score":0,"Answer":"The activity_ids field at product.template is related to the object called mail.activity. In order to check what has happened to the access right on that field, you can try to temporary disable all security rules attached to the object:\n\nMake sure you activate debug mode.\nGo to Setting -> Technical -> Database Structure -> Model.\nFind mail.activity model then open it.\nClick on Access Rights tab, print screen to remember existing rule, then uncheck all the rules.\nClick on Record Rules tab and do the same as point 4.\nTry again.","Q_Score":0,"Tags":"python,odoo,odoo-14","A_Id":70393093,"CreationDate":"2021-12-15T17:40:00.000","Title":"Access Denied by ACLs for Operation: read, uid","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am looking for a guidance on the best way of creating a small python application with embedded HTTP endpoints.\nThis application will perform periodic tasks of its own, however it should also accept external commands via HTTP requests.\nI've checked some standard python HTTP servers like Flask, but they seem to be targeted for more complex web application and run the \"application\" as a plugin for a WSGI server. It feels that the application will be small enough that I'd prefer to avoid using some big framework. What's more important, Flask seems to be centered around \"request-response\" model, which is may be fine for a pure web server but does not suit well for my application (because http requests is only one of many inputs to it).\nShould I just run http.server in a separate python thread or is there a better solution?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":56,"Q_Id":70391618,"Users Score":0,"Answer":"Without any concrete examples it's a bit hard to help.. but Flask is a microframework, so I doubt you'll find a lot smaller than that.\nYou can also check out FastAPI, which is built similar to Flask.\nThe main problem with your design is that the server acts both as the sender and the receiver of tasks, which eventually could cause you problems if something does not work.\nA better design is to have a server that listens on HTTP requests, and a scheduler service that issues HTTP requests to the server on periodic times - that way you could also construct tests for each of them separately as you decouple the \"issuer\" from the \"executor\" part of your system - and each of them can reside on a different system if needs be.\nSimplest solution might be:\n\na simple python file running a FastAPI\/Flask\ncrontab job issuing requests","Q_Score":0,"Tags":"python,http,server","A_Id":70393531,"CreationDate":"2021-12-17T10:18:00.000","Title":"Adding HTTP endpoint to a small python application","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to build a React app which sends an image to an Rest API and returns a processed image.\nWhat is the best way to send images through Rest API ?\nMy current assumption is using \"base64\" encoding to send images as strings,but the size of my images will be around 5-10MB and I dont think base64 will cut it.\nPlease help me out here,I am build the front-end using ReactJS & NodeJs,the Rest API will be build using python Flask or FastAPI.","AnswerCount":2,"Available Count":1,"Score":0.2913126125,"is_accepted":false,"ViewCount":432,"Q_Id":70393592,"Users Score":3,"Answer":"You shouldn't be sending the images this way at all. The rough approach might be to upload images to some storage (S3 or whatever), then use API just to communicate the reference to that image (id, URI). Basically, you just need to send the info about who uploaded the image (user id) and where it is stored (filesystem path of the image, S3 reference, etc.), then you'll be able to relate the two entities and handle the images processing separately.","Q_Score":1,"Tags":"javascript,python,reactjs","A_Id":70393681,"CreationDate":"2021-12-17T13:00:00.000","Title":"What is best way to send images to Rest API?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Brownie was working great yesterday.  Today I get this error.  Anyone have a solution?\nPS C:\\Users\\philk\\demos\\web3_py_simple_storage> brownie --version\nINFO: Could not find files for the given pattern(s).\nTraceback (most recent call last):\nFile \"C:\\Program Files\\WindowsApps\\PythonSoftwareFoundation.Python.3.9_3.9.2544.0_x64__qbz5n2kfra8p0\\lib\\runpy.py\", line 197, in run_module_as_main\nreturn run_code(code, main_globals, None,\nFile \"C:\\Program Files\\WindowsApps\\PythonSoftwareFoundation.Python.3.9_3.9.2544.0_x64__qbz5n2kfra8p0\\lib\\runpy.py\", line 87, in run_code\nexec(code, run_globals)\nFile \"C:\\Users\\philk.local\\pipx\\venvs\\eth-brownie\\Scripts\\brownie.exe_main.py\", line 4, in \nFile \"C:\\Users\\philk.local\\pipx\\venvs\\eth-brownie\\lib\\site-packages\\brownie_init.py\", line 6, in \nfrom brownie.project import compile_source, run\nFile \"C:\\Users\\philk.local\\pipx\\venvs\\eth-brownie\\lib\\site-packages\\brownie\\project_init.py\", line 3, in \nfrom .main import (  # NOQA 401\nFile \"C:\\Users\\philk.local\\pipx\\venvs\\eth-brownie\\lib\\site-packages\\brownie\\project\\main.py\", line 45, in \nfrom brownie.network import web3\nFile \"C:\\Users\\philk.local\\pipx\\venvs\\eth-brownie\\lib\\site-packages\\brownie\\network_init_.py\", line 4, in \nfrom .account import Accounts\nFile \"C:\\Users\\philk.local\\pipx\\venvs\\eth-brownie\\lib\\site-packages\\brownie\\network\\account.py\", line 13, in \nimport eth_account\nFile \"C:\\Users\\philk.local\\pipx\\venvs\\eth-brownie\\lib\\site-packages\\eth_account_init_.py\", line 1, in \nfrom eth_account.account import (\nFile \"C:\\Users\\philk.local\\pipx\\venvs\\eth-brownie\\lib\\site-packages\\eth_account\\account.py\", line 11, in \nfrom eth_keyfile import (\nFile \"C:\\Users\\philk.local\\pipx\\venvs\\eth-brownie\\lib\\site-packages\\eth_keyfile_init_.py\", line 7, in \nfrom eth_keyfile.keyfile import (  # noqa: F401\nFile \"C:\\Users\\philk.local\\pipx\\venvs\\eth-brownie\\lib\\site-packages\\eth_keyfile\\keyfile.py\", line 6, in \nfrom Crypto.Cipher import AES\nFile \"C:\\Users\\philk.local\\pipx\\venvs\\eth-brownie\\lib\\site-packages\\Crypto\\Cipher_init_.py\", line 36, in \nfrom Crypto.Cipher._mode_gcm import _create_gcm_cipher\nFile \"C:\\Users\\philk.local\\pipx\\venvs\\eth-brownie\\lib\\site-packages\\Crypto\\Cipher_mode_gcm.py\", line 51, in \nfrom Crypto.Util import _cpu_features\nFile \"C:\\Users\\philk.local\\pipx\\venvs\\eth-brownie\\lib\\site-packages\\Crypto\\Util_cpu_features.py\", line 34, in \n_raw_cpuid_lib = load_pycryptodome_raw_lib(\"Crypto.Util._cpuid_c\",\nFile \"C:\\Users\\philk.local\\pipx\\venvs\\eth-brownie\\lib\\site-packages\\Crypto\\Util_raw_api.py\", line 309, in load_pycryptodome_raw_lib\nraise OSError(\"Cannot load native module '%s': %s\" % (name, \", \".join(attempts)))\nOSError: Cannot load native module 'Crypto.Util._cpuid_c': Not found '_cpuid_c.cp39-win_amd64.pyd', Not found '_cpuid_c.pyd'","AnswerCount":1,"Available Count":1,"Score":-0.1973753202,"is_accepted":false,"ViewCount":77,"Q_Id":70395528,"Users Score":-1,"Answer":"I rebooted but problem still persisted.  I uninstalled brownie and reinstalled\npipx uninstall eth-brownie\npipx install eth-brownie\nI was prompted with missing path\nC:\\Users\\username.local\\bin\"\nso i added it\nworks now.","Q_Score":0,"Tags":"python,brownie","A_Id":70426098,"CreationDate":"2021-12-17T15:41:00.000","Title":"Brownie error Cannot load native module 'Crypto.Util._cpuid_c'","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"How to achieve going to another page without refreshing after for example clicking a link to another URL. More examples, I have a list of books display and when I clicked on one of the book, it will redirect me to the selected book page. This is the example of the code link.\n<a class=\"link\" href=\"{% url 'books:view_book_detail' obj.book.name obj.pk %}\">View book<\/a>\nI know about the history.pushState() but how to actually use it ? Can it be use with URL from Django. Are there any method else then stated ?","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":68,"Q_Id":70395757,"Users Score":0,"Answer":"I did this using many if statements in view.py\nyou need to use <button type=\"button\"> instead of <a> , and check if the POST request has that name to respond with different context, also you need to use if statements in template to update the frontend according to the response\nIT IS A BAD PRACTICE, it is highly recommended to use JS framework to have a single page app","Q_Score":0,"Tags":"javascript,python,html,django,ajax","A_Id":70493865,"CreationDate":"2021-12-17T15:57:00.000","Title":"Go to another page without refresh [Django]","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"How to achieve going to another page without refreshing after for example clicking a link to another URL. More examples, I have a list of books display and when I clicked on one of the book, it will redirect me to the selected book page. This is the example of the code link.\n<a class=\"link\" href=\"{% url 'books:view_book_detail' obj.book.name obj.pk %}\">View book<\/a>\nI know about the history.pushState() but how to actually use it ? Can it be use with URL from Django. Are there any method else then stated ?","AnswerCount":2,"Available Count":2,"Score":0.1973753202,"is_accepted":false,"ViewCount":68,"Q_Id":70395757,"Users Score":2,"Answer":"Using regular django or plain javascript is not efficient enough for this purpose.\nModern JavaScript frameworks like React, Angular, Vue etc are typically used for these case scenarios.\nBut still, it's not impossible though to do this without JS frameworks.\nOne of the approaches that you can use is using AJAX.\nYou can create a base.html which will be our basic template, and then break the application into little components like home.html, product-list.html, view-product.html. Which we can further include according to our requirements.\n{% include 'view-product.html' with product=product_object %}\n(something like this)\nMake an AJAX request to \/view_product\/<id>\/ which should return a JsonResponse about which component to display. And through JavaScript, we can handle loading that specific component.\nBut again, THIS IS NOT A GOOD PRACTICE, I would recommend using JavaScript frameworks for Single Page Applications.","Q_Score":0,"Tags":"javascript,python,html,django,ajax","A_Id":70396420,"CreationDate":"2021-12-17T15:57:00.000","Title":"Go to another page without refresh [Django]","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"How can I connect two applications with the scenario below?\nApplication1:\nOur infrastructure was created on AWS with python-django and react, its a private VPC that i can only access via SSH to the EC2 bastion instance (as far as to be able to write codes into)and the way the backend was deployed to create the backend URL api.mywebsite.com (which has multiple endpoints) was through cloudfront and Route53. (www.mywebsite.com was built via s3 and can talk to the backend api.mywebsite.com).\nApplication2:\n(This is a client infrastructure)\nAt this time i haven't met the client to know what their system is made of but regardless i need to find a way to write some codes on this system when a specific event is triggered to send data to an API endpoint of Application1.\nWhat would be the best way to implement such a logic or API to connect Application1 and Application2?\n(Especially considering that Application1 infrastructure is a private VPC)\nThis is pretty much the same way that someone would use an API like STRIPE...I guess, but i am not sure how to achieve such result...\nthank you in advance","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":57,"Q_Id":70411814,"Users Score":0,"Answer":"If understood correctly App1 own by your, App2 is own by 3rd party.\nThe way I would solve in a scalable way is to deploy a service on  aws lambda that can get requests from App2(or any other app that you would decide in the future) , I would give this service role in order to connect with App1 and would have all logic there.\nWhat you will gain is that your app is secure(you don't expose it to outside 3rd app) , the solution is scalable (you don't need to do nothing if you want to have other apps connecting)","Q_Score":0,"Tags":"python,reactjs,python-3.x,django,amazon-web-services","A_Id":70412022,"CreationDate":"2021-12-19T13:22:00.000","Title":"How to connect two applications and hit the API of the first application1 from application2","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I am currently upgrading a django site from 3.0 to 4.0. I am looking at the error messages and try to fix them. One of the errors I got now was that I cannot import ThreadSensitiveContext from asgiref.sync. This was not an issue in Django 3 and I have not updated the asgiref library. Also since I took over this project, I am not sure what it is used for. Have anyone experienced the same problem?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":581,"Q_Id":70419300,"Users Score":0,"Answer":"Check your Django version, I found that I had the right Python version, but not a minimum version of Django.","Q_Score":1,"Tags":"python,django","A_Id":72391810,"CreationDate":"2021-12-20T08:46:00.000","Title":"Cannot import ThreadSensitiveContext from asgiref.sync, Upgrading django to 4.0","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to learn tailwind and I am using Django, but I occured a problem that typography isn't working, I don't know why.. because other tailwind classes works very well.\nI am using that to run tailwind with django django-tailwind.readthedocs.io\/\nmy html\n<div class=\"prose lg:prose-lg prose-slate\"> {{ post.post_text | safe}} <\/div>\nmy config tailwind contains in plugin section\nrequire('@tailwindcss\/typography'), that line that I know is necessery\nHow can I make that prose class works like it should?\nOther classes from standard tailwind works properly.\nI know also that css is generated for prose, and text is html with all  and others but they are without tailwind-css\nCheers","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":284,"Q_Id":70427807,"Users Score":0,"Answer":"Problem occours only on Opera GX, since I changed to Chrome or Edge all is working properly.\nRemember to active in devtools the cache clear.","Q_Score":0,"Tags":"python,django,tailwind-css","A_Id":70427957,"CreationDate":"2021-12-20T20:43:00.000","Title":"Django Tailwind Typography Prose not working properly","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am using elasticsearch (version 7.10.2 ) with python (django version 3.0) but I am getting this error\nThe client noticed that the server is not a supported distribution of Elasticsearch\nWhile searching on the internet I found that downgrading the version of elastic search from 7.14 is was working for a lot of people as version 7.14 was updating a few internal scripts. But in my case the version is already lower than 7.14.\nI used curl -X GET \"HTTP:\/\/localhost:9200\" to check its version.\nAlso, other such issues included NODE, Angular and other frameworks which were not relevant to my case.\nHow can I solve this issue? If I need to downgrade then which version am I supposed to downgrade?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":408,"Q_Id":70435277,"Users Score":0,"Answer":"I managed to make it work with a python client version less than 7, but in my case it was quite an old version of Elasticsearch.\nI've solved it with pip install -U 'elasticsearch<7' which installed version 6.8.2.\nI'll try and update both Elasticsearch and the python client and get back with more details.","Q_Score":0,"Tags":"python,django,elasticsearch","A_Id":70812683,"CreationDate":"2021-12-21T12:12:00.000","Title":"The client noticed that the server is not a supported distribution of Elasticsearch?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to make a flutter app that, when a button is pressed, it runs a python or a js script that I made and is saved in a .js or a .py file. Essentially, I want to run a .js or a .py file when a button in Flutter is pressed. Is that possible? And if yes, how can it be done? I am making a desktop application that has to work offline.","AnswerCount":2,"Available Count":2,"Score":1.2,"is_accepted":true,"ViewCount":81,"Q_Id":70436141,"Users Score":1,"Answer":"Yes, this is possible, but it requires Python and JS interpreters to be installed on the device. A way to ensure this is to ship them together with your app, although this will take a lot of extra space. From your app, you just launch the interpreter as a subprocess, for example python3 your_script.py\nIf your script is hardcoded and not changed later by the app, you can also turn it into a standalone executable, using a tool such as py2exe. But this is basically the same thing, the interpreter just ends up included in your script.","Q_Score":2,"Tags":"javascript,python,flutter,dart","A_Id":70436272,"CreationDate":"2021-12-21T13:20:00.000","Title":"Is it possible to run a js or python script from a .js or .py file when a button in Flutter is pressed? (Not Flutter Web)","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to make a flutter app that, when a button is pressed, it runs a python or a js script that I made and is saved in a .js or a .py file. Essentially, I want to run a .js or a .py file when a button in Flutter is pressed. Is that possible? And if yes, how can it be done? I am making a desktop application that has to work offline.","AnswerCount":2,"Available Count":2,"Score":0.0996679946,"is_accepted":false,"ViewCount":81,"Q_Id":70436141,"Users Score":1,"Answer":"Yes you can using API, you make API in django or flask backend which run the python script you want after you make a request to your API via clicking the flutter button","Q_Score":2,"Tags":"javascript,python,flutter,dart","A_Id":70436198,"CreationDate":"2021-12-21T13:20:00.000","Title":"Is it possible to run a js or python script from a .js or .py file when a button in Flutter is pressed? (Not Flutter Web)","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm deploying a Bamboo plan with 4 different stages.\nThe first stage detects whether trigger arrives from either DEV or PROD environments.\nIf env is DEV, plan can run without problems.\nIf env is PROD, I would need an approval step after first stage that pauses the plan build, sends a notification to admins and awaits for their approval.\nHow can I add this feature?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":142,"Q_Id":70448425,"Users Score":0,"Answer":"Environment permissions is the only way to go as in admins only have access to deploy to PROD. The 4-eyes approval flow you describe is not supported.","Q_Score":0,"Tags":"python,bamboo,bitbucket-server,bamboo-specs,bamboo-artifacts","A_Id":70754391,"CreationDate":"2021-12-22T11:35:00.000","Title":"How to add approval workflow on Atlassian Bamboo Plan?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Let's say we have the tables: table0 and table1.\nIn both table0 and table1 we store a name, age, and date.\nHow can I check if an entry from table0 and an entry from table1 have the same name and age?","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":43,"Q_Id":70450283,"Users Score":0,"Answer":"Simple take join with where clause t1.name = t2.name and t1.age = t2.age.","Q_Score":0,"Tags":"python,mysql","A_Id":70450323,"CreationDate":"2021-12-22T14:04:00.000","Title":"Checking if in a table in mysql are two rows with the same elements","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am working on a project written in python.\nThe goal is to have a user friendly calculator-type app (user enters desired values and the app gives the result based on the user input).\nNow the python part is not the problem. The problem is I have no clue what to use to deploy the code.\nI know about and worked with Bokeh, Streamlit, HoloViews, etc. Those solutions are not the best for what I want to achieve.\nWhat would be your suggestion?\nThanks in advance and happy holidays.","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":47,"Q_Id":70450734,"Users Score":1,"Answer":"Platform.sh might be worth looking into. There is a lot more that goes into choosing something like this, how many visitors do you expect, price, efficeny...\nPythonAnywhere might be the easiest if you are not looking to set up db, backend in flask\/django...","Q_Score":0,"Tags":"python,web-applications","A_Id":70450874,"CreationDate":"2021-12-22T14:38:00.000","Title":"Best way to deploy a python code (make a web app from py code)","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am setting up Robot Framework on RHEL 8.4. I have python 3.6 installed on my machine. However, when I try to run robot from within python virtual environment it throws\n-ksh: robot: cannot execute [Permission Denied]\nI also ran whereis robot and gave all permissions to the robot file.\nThe error happens when I am trying to run robot as a user other than root from within the virtual environment however, it works fine when run within virtual environment as root.\nHowever, I am not keen to continue normal development as root and would like this to work via my normal user.","AnswerCount":2,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":91,"Q_Id":70461139,"Users Score":0,"Answer":"It sounds quite strange but upgrading PIP resolved the issue.","Q_Score":0,"Tags":"python,linux,robotframework,rhel8","A_Id":70463794,"CreationDate":"2021-12-23T10:55:00.000","Title":"RHEL Permission Denied whilst trying to Run Robot Framework","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"On my flask app I want to create a feature so a user can query the database, have the browser display the results in a table and then download it in a csv.\nIs the plan I have below secure?  Would end users be able to manipulate the JSON?\nMy overall design plan to accomplish this is as follows in pseudocode:\n\n(Python) pulls Query from database and puts results in JSON using JSONIFY\n\n(Python) returns JSON to Javascript file\n\n(Javascript) Displays the JSON in an HTML table\n\n(Javascript) User clicks button and Javascript sends JSON to flask endpoint\n\n(Python) Flask endpoint converts JSON into CSV","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":34,"Q_Id":70474111,"Users Score":1,"Answer":"Re-sending the JSON to the Flask server seems a useless waste of bandwidth (since the server already has this information). The Flask server should be able to generate a CSV representation, directly from the database query, for example using a csv.writer or csv.DictWriter object.","Q_Score":0,"Tags":"javascript,python,json,flask","A_Id":70474184,"CreationDate":"2021-12-24T14:55:00.000","Title":"Is passing a JSON between Javascript and Flask a secure way to convert a JSON to a CSV in flask?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have an existing django webapp, I have two model classes in my models.py for different functionalities in my app. I have used django allauth for all of the login\/logout\/social sign ins. Note: I have not used django rest framework at all so far in creating my app.\nNow, I have to do the same for the android version of my webapp using Java. What exactly do I need to do right now to create the rest APIs and then connect them to the android app? please give some suggestions","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":46,"Q_Id":70493683,"Users Score":0,"Answer":"yes you have to create new rest API for the android apps. Authentication will be token based for the rest API. storing tokens and retrieving data will be handled by the android app.\nThe stable authentication for Django is Simplejwt","Q_Score":2,"Tags":"python,android,django,rest","A_Id":70493930,"CreationDate":"2021-12-27T09:23:00.000","Title":"I have an existing Django Webapp, how do I make a rest API to integrate the webapp with an android app?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"So currently, I'm trying to create a bot that messages every 5 minutes using python-telegram-bot JobQueue. The app is deployed on heroku and it seems to be working just fine. But sometimes it doesn't message me after periods of inactivity (ex. not using \/start with the bot) How do I solve this issue ? When I check the log it seems to be running fine. Thanks !","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":133,"Q_Id":70498650,"Users Score":0,"Answer":"Instead of worker python bot.py use clock python bot.py in the Procfile","Q_Score":0,"Tags":"telegram-bot,python-telegram-bot","A_Id":70891136,"CreationDate":"2021-12-27T17:34:00.000","Title":"Running Telegram Bot on Heroku","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm trying to run a Django Application in an offline internal network environment.\nI have a problem in the process of downloading requirements for this.\nCurrently, I'm installing Python packages using the 'setup.py install' command.\nHowever, there is no setup.py file in the 'typing_extensions-4.0.1' package, so it's impossible to download the package. I want to ask for advice on how to solve it.\nFor your information, 'conda', 'pip' conmmands are not available.","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":114,"Q_Id":70501433,"Users Score":0,"Answer":"Hi Welcome to Stackoverflow,\nthis might be a little of the wall, looking at the repo https:\/\/github.com\/python\/typing\/,\n\nclone the repo to your computer git clone git@github.com:python\/typing.git\ntake, `src\/typing_extensions.py and copy it into your project\nimport and see if it works.\n\nIf you run into issues let me know and have a play around","Q_Score":0,"Tags":"python,django,setup.py,offline-mode","A_Id":70501561,"CreationDate":"2021-12-27T23:34:00.000","Title":"Python Package Download in offline environment :( ('typing_extensions-4.0.1')","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I wish to use Django to create a Web app, but first I need to create an virtual environment.\nSince I have a Windows system, I have used Win+R and cmd to open the teriminal, then the system shows C:\\Users\\HP>, I tried to create a datalog named learning_log and use terminal to switch to this datalog, so I typed in learning_log$ python -m venv 11_env, but the system shows 'learning_log$' is not recognized as an internal or external command,\noperable program or batch file.\nMay I know how to create a datalog and how to create an virtual working environment?","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":31,"Q_Id":70502337,"Users Score":0,"Answer":"First you need to install virtualenv library:\n\npip3 install virtualenv\n\nAfter installing virtualenv, now create virtual environment directory with any name:\n\nvirtualenv myvenv\n\nNow you can see, myvenv folder. now you can activate the virtual environment using that folder location:\n\n.\\myvenv\\Scripts\\activate.bat\n\nNow you can see the virtual environment activated and you can see (myvenv) on your command prompt.","Q_Score":0,"Tags":"python","A_Id":70507088,"CreationDate":"2021-12-28T02:49:00.000","Title":"How to create an virtual working environment?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Hello I am new to python and I wanted to know how I can load an image from a directory on the computer in a html page using python?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":63,"Q_Id":70503799,"Users Score":0,"Answer":"Can you add more details to your question, please? It is unclear what is the aim here.","Q_Score":0,"Tags":"python,html,css,django","A_Id":70503838,"CreationDate":"2021-12-28T07:08:00.000","Title":"How to load an image file from my local hard drive to html page using python?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I need to segregate dashboards for different user roles, how can we do it in flask-login, a user can have a single role assigned to it.\nAnd each user of the role will be assigned to a different entity and it needs to access only that.","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":62,"Q_Id":70503934,"Users Score":1,"Answer":"Just define a many-to-many relationship between user and roles classes. Then using a decorator, check if role in user.roles","Q_Score":0,"Tags":"python,flask,sqlalchemy,flask-login","A_Id":70508954,"CreationDate":"2021-12-28T07:26:00.000","Title":"How do we go about roles and ownership based authentication in flask-login?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm using pusher for a python-vuejs app.\nI have a function that sends data to the pusher, the data content is {'message':{'value':id_value}}\nThe function is executed via an api rest POST request, when I trigger the function and send the data to the pusher on the page with the url host\/data-url the pusher console shows the correct informations for the first time.\nWhen I execute the POST request again (without refreshing the page), the data is gotten twice (gotten means that it is physically there not just a pusher console output), if i do the request again it is gotten 3 times and so on.\nDoes anyone have any idea on how to initialize pusher after each request or something because if I refresh the page and send the data, it works again and i get it only once.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":127,"Q_Id":70509966,"Users Score":0,"Answer":"I figured it out if anyone have the same problem.\n1.You should subscribe the moment you call the page.\n2.If you are triggering the channel.bind with a button click (or any event launcher ) , make sure to unbind before the click and not after.","Q_Score":0,"Tags":"python-3.x,vue.js,pusher","A_Id":70521237,"CreationDate":"2021-12-28T16:43:00.000","Title":"Pusher showing already sent data","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to define a 'Game' model in which exactly (and not more) 2 users will compete. Each of this user can compete in another game in parallel or later. I thought about a Manytomanyfield, but I don't know how to restrict the number of users. How to do it?","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":32,"Q_Id":70517393,"Users Score":0,"Answer":"Just create a model with two user fields (player1, player2).","Q_Score":0,"Tags":"python,django,model","A_Id":70517427,"CreationDate":"2021-12-29T09:18:00.000","Title":"Django model with exactly 2 users references","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am running .py file using Robotframework. py file has a logic to compare two csv files and generate 2 new csv files with details of difference. This py file works well(within seconds) and smoothly when executed using python IDE but it is taking too long time to get completed (I kept timeout of 10min).\nI am using Process Library along with my py file to run these together.\nRun Process runs the .py file and returns the result to RF console. But in this case, it is getting timed out. I am using RF 3.2.2","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":42,"Q_Id":70523127,"Users Score":0,"Answer":"I have used py as a library to import the python function to do desired task. It just enabled me to use that as a keyword inside my robot file. This was executed quickly with the right output. I could then print that to console.","Q_Score":0,"Tags":"python,robotframework","A_Id":71748499,"CreationDate":"2021-12-29T17:53:00.000","Title":"Running python code from RobotFramework taking too long","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to schedule a spider from scrapyd-client by giving the command line arguments as well.\ne.g: scrapy crawl spider_name -a person=\"John\" -a location=\"porto\" -o local.csv\nAbove command works well when running spider directly from scrapy, but it does not work when running it from rest API using scrapyd-client.\nBasically the question is how to send scrapy's command line arguments like (-a, -o) in scrapyd-client?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":79,"Q_Id":70528192,"Users Score":0,"Answer":"Use the flag -d instead of the -a flag","Q_Score":0,"Tags":"python,scrapy,scrapyd-deploy","A_Id":70530856,"CreationDate":"2021-12-30T06:33:00.000","Title":"How to send scrapy command line argument to scrapyd-client","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I was installing a django Rest Framework for my project. I installed this with\npip install djangorestframework it worked perfectly fine, then i add a rest_framework line into INSTALLED_APPS in settings.py. And now at this point I want to import Response from rest_framework in views.py but it shows:\nImportError: cannot import name 'Response' from 'rest_framework'\nIt looks like it's not installed I guess, but it is ... I checked even a version of rest_framework from the console and it shows everything.\nDo you have any idea what is going on ?","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":288,"Q_Id":70537313,"Users Score":1,"Answer":"I found the solution, so I am posting it for people who had the same problem. Just do Ctrl+Shift+P if you are using VSC and then change the version of intepreter - it worked for me.","Q_Score":1,"Tags":"python,django,django-rest-framework","A_Id":70537355,"CreationDate":"2021-12-30T22:28:00.000","Title":"Import \"rest_framework\" could not be resolved","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Two days ago I created a django project and it worked all right. But, now when I am working on another django project still when I run server it's redirecting me to the older project.  I am using different virtual environment for both of them. Even after deleting the old one the issue is not resolved.\nThanks in advance.","AnswerCount":2,"Available Count":2,"Score":1.2,"is_accepted":true,"ViewCount":75,"Q_Id":70539398,"Users Score":1,"Answer":"Actually, This is not a Django error. I also faced this issue. This is your Cached issue. You can try in incognito mode or clear your browser history and cached.....This error will be solved.\nThank You !!!","Q_Score":0,"Tags":"python-3.x,django","A_Id":70539652,"CreationDate":"2021-12-31T05:51:00.000","Title":"django redirects to non existing url","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Two days ago I created a django project and it worked all right. But, now when I am working on another django project still when I run server it's redirecting me to the older project.  I am using different virtual environment for both of them. Even after deleting the old one the issue is not resolved.\nThanks in advance.","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":75,"Q_Id":70539398,"Users Score":0,"Answer":"This often happens when server of both projects are running and running on same port. can you verify?","Q_Score":0,"Tags":"python-3.x,django","A_Id":70539642,"CreationDate":"2021-12-31T05:51:00.000","Title":"django redirects to non existing url","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a batch script which is running multiple scripts that scrape information and put it into a database. The scraping scripts get information and use SQL alchemy to write the information to a mysql database.\nI am running into an issue. I have a try, except to run the scripts. Occasionally, some of the scripts fail, but still maintain connection to the database. This will add up, and will eventually cause a too many connections error.\nIs there a way to clear all the connections to the database from the batch script? I tried \"close all sessions\" but it is not doing it.","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":64,"Q_Id":70551568,"Users Score":1,"Answer":"Issues was that though connections were closed, the engines still remained. Calling engine.dispose() fixed the problem.","Q_Score":1,"Tags":"python,sqlalchemy","A_Id":70557559,"CreationDate":"2022-01-01T20:10:00.000","Title":"Close all connection to DB in SQLAlchemy","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"We have django based python 3.7 version application was running properly on heroku but suddenly since 2 week all new deployment fails with following error. Its working on my local machine with runserver command.\nHere is errors logs for more reference. please help me as my prod app needs new changes to deployed and now everything is blocked.\n\nUpdated Pipfile.lock (599d25)!\nInstalling dependencies from Pipfile.lock (599d25)\u2026\nTo activate this project's virtualenv, run pipenv shell.\nAlternatively, run a command inside the virtualenv with pipenv run.\nRemoving intermediate container 2125752d2f35\n---> a3b53b037080\nStep 10\/11 : RUN pipenv install --system\n---> Running in fcb5350323a4\nInstalling dependencies from Pipfile.lock (599d25)\u2026\nAn error occurred while installing importlib-metadata==4.10.0 ; python_version < '3.8' --hash=sha256:92a8b58ce734b2a4494878e0ecf7d79ccd7a128b5fc6014c401e0b61f006f0f6 --hash=sha256:b7cf7d3fef75f1e4c80a96ca660efbd51473d7e8f39b5ab9210febc7809012a4! Will try again.\nAn error occurred while installing zipp==3.7.0 --hash=sha256:9f50f446828eb9d45b267433fd3e9da8d801f614129124863f9c51ebceafb87d --hash=sha256:b47250dd24f92b7dd6a0a8fc5244da14608f3ca90a5efcd37a3b1642fac9a375! Will try again.\nInstalling initially failed dependencies\u2026\n[pipenv.exceptions.InstallError]:   File \"\/usr\/local\/lib\/python3.7\/dist-packages\/pipenv\/cli\/command.py\", line 254, in install\n[pipenv.exceptions.InstallError]:       editable_packages=state.installstate.editables,\n[pipenv.exceptions.InstallError]:   File \"\/usr\/local\/lib\/python3.7\/dist-packages\/pipenv\/core.py\", line 1874, in do_install\n[pipenv.exceptions.InstallError]:       keep_outdated=keep_outdated\n[pipenv.exceptions.InstallError]:   File \"\/usr\/local\/lib\/python3.7\/dist-packages\/pipenv\/core.py\", line 1253, in do_init\n[pipenv.exceptions.InstallError]:       pypi_mirror=pypi_mirror,\n[pipenv.exceptions.InstallError]:   File \"\/usr\/local\/lib\/python3.7\/dist-packages\/pipenv\/core.py\", line 862, in do_install_dependencies\n[pipenv.exceptions.InstallError]:       _cleanup_procs(procs, False, failed_deps_queue, retry=False)\n[pipenv.exceptions.InstallError]:   File \"\/usr\/local\/lib\/python3.7\/dist-packages\/pipenv\/core.py\", line 681, in _cleanup_procs\n[pipenv.exceptions.InstallError]:       raise exceptions.InstallError(c.dep.name, extra=err_lines)\n[pipenv.exceptions.InstallError]: ['Collecting importlib-metadata==4.10.0 (from -r \/tmp\/pipenv-01ok21hj-requirements\/pipenv-lkap3a1h-requirement.txt (line 1))']\n[pipenv.exceptions.InstallError]: ['Could not find a version that satisfies the requirement importlib-metadata==4.10.0 (from -r \/tmp\/pipenv-01ok21hj-requirements\/pipenv-lkap3a1h-requirement.txt (line 1)) (from versions: 0.0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 0.10, 0.11, 0.12, 0.13, 0.14, 0.15, 0.16, 0.17, 0.18, 0.19, 0.20, 0.21, 0.22, 0.23, 1.0.0, 1.1.0, 1.1.1, 1.1.2, 1.1.3, 1.2.0, 1.3.0, 1.4.0, 1.5.0, 1.5.1, 1.5.2, 1.6.0, 1.6.1, 1.7.0, 2.0.0, 2.1.0, 2.1.1, 2.1.2, 3.0.0, 3.1.0, 3.1.1, 3.2.0, 3.3.0, 3.4.0, 3.5.0, 3.6.0, 3.7.0, 3.7.1, 3.7.2, 3.7.3, 3.8.0, 3.8.1, 3.8.2, 3.9.0, 3.9.1, 3.10.0, 3.10.1, 4.0.0, 4.0.1, 4.1.0, 4.2.0, 4.3.0, 4.3.1, 4.4.0, 4.5.0, 4.6.0, 4.6.1, 4.6.2, 4.6.3, 4.6.4, 4.7.0, 4.7.1, 4.8.0, 4.8.1, 4.8.2, 4.8.3)', 'No matching distribution found for importlib-metadata==4.10.0 (from -r \/tmp\/pipenv-01ok21hj-requirements\/pipenv-lkap3a1h-requirement.txt (line 1))']\nERROR: ERROR: Package installation failed...\nThe command '\/bin\/sh -c pipenv install --system' returned a non-zero code: 1","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":45,"Q_Id":70553977,"Users Score":0,"Answer":"Can you try putting the requirements from pipenv into requirements.txt file and try to get the requirements from the .txt file instead of pipenv?","Q_Score":0,"Tags":"python,django,heroku","A_Id":70554145,"CreationDate":"2022-01-02T06:11:00.000","Title":"DJango Python deployment on Heroku stopped working","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"When I make an scrapy request without formatting the body I get the right results, however, when I format it in order to make a loop I get a 400 error.\nThis is the body that's not formatted:\n'{\"fields\":\"id,angellist_url,job_roles\",\"limit\":25,\"offset\":0,\"form_data\":{\"must\":{\"filters\":{\"founding_or_hq_slug_locations\":{\"values\":[\"spain\"],\"execution\":\"or\"}},\"execution\":\"and\"},\"should\":{\"filters\":{}},\"must_not\":{\"growth_stages\":[\"mature\"],\"company_type\":[\"service provider\",\"government nonprofit\"],\"tags\":[\"outside tech\"],\"company_status\":[\"closed\"]}},\"keyword\":null,\"sort\":\"-last_funding_date\"}'\nThis is the formatted body:\n'{\"fields\":\"id,angellist_url,job_roles\",\"limit\":25,\"offset\":{offset_items},\"form_data\":{\"must\":{\"filters\":{\"founding_or_hq_slug_locations\":{\"values\":[\"spain\"],\"execution\":\"or\"}},\"execution\":\"and\"},\"should\":{\"filters\":{}},\"must_not\":{\"growth_stages\":[\"mature\"],\"company_type\":[\"service provider\",\"government nonprofit\"],\"tags\":[\"outside tech\"],\"company_status\":[\"closed\"]}},\"keyword\":null,\"sort\":\"-last_funding_date\"}'\nThen when making the request I use:\n yield scrapy.Request(url = url, headers = headers, body = body.format(offset_items = '0'))","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":41,"Q_Id":70556858,"Users Score":0,"Answer":"The two are identical if not for **offset_items** in your 'formatted' string which is causing the issue. Scrapy requires a int for the offset.\nYou're trying to pass the offset kwarg value to the body using .format() but using wrong syntax. Best solution is to use an f-string to pass in the value.\nYou can use something like difflib in python to quickly check the difference between the two strings, which will allow you to easily troubleshoot issues like these","Q_Score":0,"Tags":"python,scrapy,request","A_Id":70556944,"CreationDate":"2022-01-02T14:38:00.000","Title":"Error formatting the body of a scrapy request","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to covert a module from odoo11 to odoo15. But there is an error with ast.py . I'm using python 3.7\nThis is the error.\n\nFile \"\/usr\/local\/lib\/python3.7\/ast.py\", line 55, in _convert_num\nraise ValueError('malformed node or string: ' + repr(node)) ValueError: malformed node or string: <_ast.Subscript object at\n0x7fa289f29d10> - - - 2022-01-03 06:41:31,398 35590 INFO ? odoo.http:\nGenerating nondb routing\n\ncan anyone Familiar with this error ?","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":44,"Q_Id":70562481,"Users Score":1,"Answer":"I suppose odoo11 use python3.6 or older version of python.\nOdoo15 use 3.8\nYou may need to re-develop your module due to version conflict. also xml and views\/templates are different in odoo15.","Q_Score":1,"Tags":"python,odoo-15","A_Id":72011542,"CreationDate":"2022-01-03T06:52:00.000","Title":"Odoo15 error while converting odoo11 to Odoo15","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"As the title asked: Is the RequestHandler.on_finish() method guaranteed to be called? Even if, say, the .post() method had an unhandled Exception?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":41,"Q_Id":70564622,"Users Score":2,"Answer":"Yes, on_finish is always called even when an unhandled exception occurs.\nTornado runs the handler method within a try...except block. So when there's an unhandled exception, Tornado generates a 500 error response and calls the finish() method to close the request which in turn calls the on_finish() method.","Q_Score":0,"Tags":"python,tornado","A_Id":70603540,"CreationDate":"2022-01-03T10:48:00.000","Title":"Tornado: Is the RequestHandler.on_finish() method guaranteed to be called?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I develop a custom python library that I put in S3 bucket, and now I want to use Zeppelin with pyspark interpreter to interact with it. However, I can't find a way to do it. Anybody knows how to do so?\nThings that I have tried:\n\nIn glue it is possible to include external python library in S3 by specifying 'Python lib path', which makes me think that in Zeppelin it is possible\nThere are methods such as using %dep interpreter but it is only for JAR library, while I want to load python library\n\nAny suggestion is appreciated","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":42,"Q_Id":70576672,"Users Score":0,"Answer":"Never mind I find the answer\nWhen creating the dev endpoint you can actually specify 'Python lib path' the same way as you specify it at the glue job","Q_Score":0,"Tags":"python,amazon-s3,pyspark,aws-glue,apache-zeppelin","A_Id":70587088,"CreationDate":"2022-01-04T09:33:00.000","Title":"Import python external library from S3 in Zeppelin","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"How can I monthly scrape a website for products' prices and send an email if there are any changes in the prices?\nIs there's any way to do that automatically using Python? What libraries should I use?","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":97,"Q_Id":70581782,"Users Score":0,"Answer":"You can use crontab or airflow and set your scraper to run every month.","Q_Score":0,"Tags":"python,email,web-scraping,beautifulsoup","A_Id":70581831,"CreationDate":"2022-01-04T16:12:00.000","Title":"Scrape Webpages at regular intervals automatically with python","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm trying to update a dynamodb table having some million of rows. Tried updating it with a lambda function but it eventually times out after 15mins. I want to update a single attribute value for all the records present in the table with an efficient way. Can someone suggest how to achieve this?","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":296,"Q_Id":70591991,"Users Score":1,"Answer":"This is just my 5 cents, and it's probably not a official, perfect, or even great way of doing things. But here we go:\n\nCreate a SQS queue\nHave a lambda listen to messages on that queue\nRun the lambda, have it read the first chunk of items from the database.\nFrom the query you get a LastEvaluatedKey, store this in a separate dynamodb item\/table\nPut the LastEvaluatedKey to the queue\nWhen the Lambda is invoked again, use the LastEvaluatedKey passed in from the queue and pass it to the ExclusiveStartKey  in your query, so that your query returns the next items from DynamoDB that you haven't processed yet\n\nThis setup means your lambda will only process small chunks at a time. It also means that when things go wrong, you have your item in DynamoDB with the LastEvaluatedKey stored, which allows you to continue from where you left off.\nHopefully this was useful, good luck :)","Q_Score":1,"Tags":"python-3.x,dynamodb-queries,amazon-dynamodb","A_Id":70592383,"CreationDate":"2022-01-05T11:18:00.000","Title":"How to update millions of dynamodb records in an efficient way","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"So I am running a particular code block in threads(5), and in the code been executed by the threads data are been saved to the database. e.g.\nlink = AccountLinkModel.objects.create(account=account)\nif I print the value of \"link\" object and any field from the AccountLinkModel model, they print successfully, which means the data was created, but eventually, the record of some was not found in the Database, only few were recorded in the database.\nAny advice on what might cause this?","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":43,"Q_Id":70613808,"Users Score":0,"Answer":"Maybe try to run it with only 1 thread to see if the problem still occurs, if not you might have a race condition in your code where you are not properly locking a shared ressource of your threads.","Q_Score":0,"Tags":"python,mysql,django,multithreading","A_Id":70613875,"CreationDate":"2022-01-06T21:25:00.000","Title":"Django database storage issue","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to test a Django app by using other devices in my local network. I am using Angular as my client.\nSo far, I am able to run my Angular app on other devices. However, whenever I try to make any sort of request, I get back a response specifying: net::ERR_CONNECTION_REFUSED\n\nI am able to properly run both the client app and Django REST server in my local machine but it's not the case when it comes to other devices. \nBased on some of the already posted solutions, I have done :\n\nBinding Django server to IP : 0.0.0.0:8000 by running python .\\manage.py runsslserver --certificate .\\ssl\\server.crt --key .\\ssl\\server.key 0.0.0.0:8000 (I am using SSL for both client and server).\nSetting ALLOWED_HOSTS to ['*'] in settings.py.\n\nBut the error is still persistent. All the devices (including my local machine) which I am using is Windows if that's important.\n\nCan someone help me in fixing this issue? Or are there any other way to run the API server?","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":326,"Q_Id":70641888,"Users Score":0,"Answer":"Got it working.\n\nIt was just a small bug in my angular app configuration for accessing API URL.\nJust had to update the IP address (or the URI) in which the API server was running.","Q_Score":0,"Tags":"python,django,django-rest-framework,localhost,connection-refused","A_Id":70652770,"CreationDate":"2022-01-09T13:46:00.000","Title":"Getting net::ERR_CONNECTION_REFUSED when trying to make a request to Django REST Server","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a python code on my desktop where I call Google APIs to get some data. I am trying to deploy it on AWS Lambda to run it periodically but I and running into some issues. Below are the steps I followed:\n\nDownloaded google package using pip3 install google-api-python-client -t . Zipped this folder and uploaded it to a layer in AWS Lambda\nLinked the layer with my function but when I am trying to execute the lambda function, I get the following error:\n\n\"errorMessage\": \"Unable to import module 'lambda_function': No module named 'googleapiclient'\",\nIn my code I have the following import statement:\nfrom googleapiclient.discovery import build\nPlease let me know if I am missing something and how to debug this.\nRegards,\nDbeings","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":291,"Q_Id":70643567,"Users Score":0,"Answer":"You typically receive this error when your Lambda environment can't find the specified library in the Python code. This is because Lambda isn't prepackaged with all third party python libraries.\nin your local environment \"googleapiclient\" are compiled and available during runtime but it's not available in lambda runtime.\nTo resolve this error, create a deployment package(pre-compilied\/zip) or Lambda layer that includes the libraries that you want to use in your Python code for Lambda.\nbest of luck","Q_Score":0,"Tags":"amazon-web-services,aws-lambda,google-api,google-api-python-client","A_Id":70643777,"CreationDate":"2022-01-09T16:58:00.000","Title":"Google API Python Client Call with AWS Lambda","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm somewhat new to Ubuntu (16.04, armhf) and am trying to use pytimeextractor which requires both cython and pyjnius to enable the Java\/Python interaction, but am running into the following error with pyjnius:\nSystemError: Error calling dlopen(b'\/usr\/lib\/jvm\/jdk1.8.0-openjdk-armhf\/jre\/lib\/arm\/server\/libjvm.so': b'\/usr\/lib\/jvm\/jdk1.8.0-openjdk-armhf\/jre\/lib\/arm\/server\/libjvm.so: cannot open shared object file: No such file or directory'\nI was initially having issues with setting JAVA_HOME (getting a KeyError), which lead me to purge existing Java installations such as the folder referenced in the SystemError above: \"*\/jdk1.8.0-openjdk-armhf\/...\"\nAfter reinstalling Java and setting JAVA_HOME in etc\/environment, then uninstalling and reinstalling pyjnius, it is still pointing to this old, now non-existent Java installation... rather than the JAVA_HOME now set (\/usr\/lib\/jvm\/java-1.8.0-openjdk-armhf) and I have not the slightest idea why.\nCould someone please help point me in the right direction of resolving this issue? I feel out of my depth with the extent of Ubuntu knowledge required to accurately diagnose the errors in front of me and swiftly resolve them. Thank you.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":68,"Q_Id":70646863,"Users Score":0,"Answer":"I have managed to resolve this issue. As far as I can tell, I had set the JAVA_HOME to point at the correct installation of Java but needed to log out and back in for the changes to take effect.","Q_Score":0,"Tags":"python,java,pyjnius","A_Id":70647367,"CreationDate":"2022-01-10T01:16:00.000","Title":"Pyjnius looking for libjvm.so in wrong folder - Ubuntu 16.04","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"In AWS Lambda, While updating the lamba function i am gettting the error like botocore.errorfactory.InvalidParameterValueException: An error occurred (InvalidParameterValueException) when calling the UpdateFunctionCode operation: Unzipped size must be smaller than 262144000 bytes. Basically i am pushed the code to git repo and after that updating the lambda function through shell script to reflect the update the code into aws lambda.\nBut it is showing the above error. Can you please anyone help me for this issue.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":273,"Q_Id":70657384,"Users Score":0,"Answer":"aws lambda limit the code of 250M\nso, if your code is totally bigger than 250M, then you can use docker image to  release your lambda function.","Q_Score":0,"Tags":"python-3.x,amazon-web-services,shell,aws-lambda","A_Id":70675826,"CreationDate":"2022-01-10T18:37:00.000","Title":"While updating the lambda function of aws it's throwing the error like : Unzipped size must be smaller than 262144000 bytes","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am new to Python \/ Azure VM world.\n\nI have created Python\/Django website using PyCharm IDE.\nCreated Azure VM with Python\/Django installed\non Azure VM , I can run : Python manage.py runserver and i can access it using Azure URL from externally.\n\nQuestion:\n\nto run\/deploy a python website on VM, do we have to run Python manage.py command or there is any other way ?\nin case I have to deploy multiple websites what i should do ?\nand python manage.py session also gets expired pretty soon and site is not accessible anymore , how to keep it running ?\n\nRegards Shakeel","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":65,"Q_Id":70663056,"Users Score":0,"Answer":"after some research I found the solution, answer to my own question is for my requirements I can use NGINX and GUNICORN :)","Q_Score":0,"Tags":"python,django,azure,virtual-machine","A_Id":70668540,"CreationDate":"2022-01-11T07:31:00.000","Title":"Azure Virtual Machine (Ubuntu) how to deploy multiple Python websites","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":1,"Web Development":1},{"Question":"I have a Django(python) project running on a digitalocean.com droplet. Because the configurations options are limited I have an excess of free memory. I'm thinking about using that available memory, and load some database tables in memory. I already have a Redis server caching some views. Is it possible to cache a database whole table? How?\nThanks.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":88,"Q_Id":70673173,"Users Score":0,"Answer":"There's really no point (if you want to be able to query those tables with models or SQL).\nEither your RDBMS (MySQL, Postgres, ...) will deal with caching tables in memory, or alternately the Linux file page cache will deal with keeping the underlying data files properly in memory.","Q_Score":0,"Tags":"python,django,performance,memory,redis","A_Id":70673187,"CreationDate":"2022-01-11T20:39:00.000","Title":"Django project - database table in cache","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Inside the project folder, I have created both the html and CSS file under 'venv' library root folder.\nhtml file name - index.html\nCSS file name - styles.css\ncode that I used to link CSS:\n<link rel=\"stylesheet\" href=\"styles.css\" type=\"text\/css\">\nThis does not seem to work. Need help.","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":109,"Q_Id":70678128,"Users Score":0,"Answer":"I am not sure but check it.\nyou can add the folder what the css file is found.\nlike this: <link rel=\"stylesheet\" href=\"..\/root\/styles.css\" type=\"text\/css\">","Q_Score":0,"Tags":"python,html,css,pycharm","A_Id":70678482,"CreationDate":"2022-01-12T08:05:00.000","Title":"How can I link my external css file to my html file in Pycharm?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have an application that is hosted through Google App Engine. It is intended to be a file hosting application, where files are uploaded directly to GCS. However, there is some processing that needs to happen with these files, so originally my plan was to download the files, do the modifications, then reupload. Unfortunately, GAE is a read-only file system. What would be the proper way to make file modifications to objects in GCS from GAE? I am unfamiliar with most google cloud services, but I see ones such as google-cloud-dataproc, would these be able to do it?\nOperations are removing lines from files, and combining files into a single .zip","AnswerCount":1,"Available Count":1,"Score":0.3799489623,"is_accepted":false,"ViewCount":70,"Q_Id":70686552,"Users Score":2,"Answer":"You can store the file in the tmpfs partition that you have on App Engine mounted in \/tmp. It's in memory file system and you will use memory to store files. If the files are too large, increase the memory size of your App Engine instance else you will have a out of memory error\nIf the file is too big, you have to use another product.\nThink to clean the files after use to free memory space.","Q_Score":1,"Tags":"python,google-app-engine,google-cloud-platform,google-cloud-storage","A_Id":70693303,"CreationDate":"2022-01-12T18:23:00.000","Title":"Modifying files in Google Cloud Storage from Google App Engine","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I need to run a python script file on the 20th of every month. This code will read the tsv file (stored somewhere) then call to the fee registration API and log the response to a file and save it. The processed tsv file will be moved to the processed folder.\nI dont know the best way to implement this in AWS?\nManual approach is:\n\nCreate EC2 instance, run python script\nStore tsv file on s3 (I dont know the best way to handle file upload problem)\nUse lambda to trigger on the 20th of every month.\n\nWhat is the best way to implement this in AWS?\nWhat is the best way to implement file storage and upload?","AnswerCount":1,"Available Count":1,"Score":0.3799489623,"is_accepted":false,"ViewCount":135,"Q_Id":70693362,"Users Score":2,"Answer":"You can do it without an Amazon EC2 instance:\n\nCreate an AWS Lambda function that will perform the process (call API and log the response)\nStore any persistent data in an Amazon S3 bucket and have the Lambda function download\/upload from there\nCreate a CloudWatch Events rule to trigger the AWS Lambda function at the desired interval\n\nAWS Lambda functions provide 512MB of storage in the \/tmp\/ directory, so you can download the TSV file to there, perform your operations and then upload the resulting file back to  S3.\nYou will only be charged for the duration that the Lambda function actually runs.","Q_Score":0,"Tags":"python,amazon-s3,amazon-ec2,amazon-ecs,script","A_Id":70693466,"CreationDate":"2022-01-13T08:19:00.000","Title":"What is the best way to run python scripts once per month in AWS?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Using list_accounts boto3 I was able to get the Joined Timestamp, however this time I want to capture the closed timestamp of all accounts in my AWS Organization that are in closed status. Can someone tell me if there is a Boto3 function available to fetch this data ? TIA","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":38,"Q_Id":70696073,"Users Score":1,"Answer":"This is not possible. If an account is closed or not has nothing to do with the organization and their for you cant use boto3(oragnization) to get the info like joined timestamp with the list_accounts. With the list_accounts you just see the the time stamp you joined (this is info related to organization) you can not see the timestamp of when the account was created (this info is related to the account).","Q_Score":0,"Tags":"python,amazon-web-services,aws-lambda,boto3","A_Id":70696272,"CreationDate":"2022-01-13T11:47:00.000","Title":"How can I capture the closed timestamp of an AWS Account using Boto3","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a Django application that a former colleague of mine developed. It was created in Windows, but I need to deploy it on a Linux server. The requirements.txt fails to install all requirements on the Linux server. Specifically, the mysql, mysqlconnector, and version of psutil fail to install.\nI cannot find any documentation on converting a Windows Django project to be compatible with Linux. Instead, most sources say that Django apps will work on either environment interchangeably, but this does not seem to be true since I cannot install the requirements or migrate the project.","AnswerCount":1,"Available Count":1,"Score":-0.1973753202,"is_accepted":false,"ViewCount":95,"Q_Id":70703327,"Users Score":-1,"Answer":"Mysql connector can be tricky. You remove it from the requirements and install other packages. That connector only affects your database.\nYou can download a binary distribution of the connector that suits your Linux system and install.","Q_Score":1,"Tags":"python,django,windows,amazon-linux-2","A_Id":70703381,"CreationDate":"2022-01-13T21:30:00.000","Title":"Django App developed in Windows will not run on Linux","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I have this application created with serverless framework using python language, but I am not finding a way to debug it locally or at least run it just to test it out before deploying it to amazon's web services.\nIs there any way to run serverless application (with python) using pycharm or any other tool?","AnswerCount":3,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":243,"Q_Id":70711552,"Users Score":0,"Answer":"The problem is that you are confuse about what is the Serverless framework, this framework is just for work with infrastructure as a code, this is why you don't see anywhere how to debug your code with it, it's because this don't make sense.\nWith Serveless framework, you just write your infrastructure (s3, lambdas, ec2) to support your code and they will create everything on aws\/google cloud etc;\nSo this is complete different concept, you can't \"run or debug\" your code with serverless, because serverless don't are a framework to write or run applications.\nFor sample, imagine this scenario:\nI have a python function, that I wrote, let's call it greet. To execute it and debug it, I need to execute it normally calling python greet.py or just running or debug via IDE (like Pycharm).\nOnce time this is done and functional, I want to run it on the cloud, now I write a serverless.yml to create everything that I need on the cloud and push my code to there.","Q_Score":0,"Tags":"python,amazon-web-services,serverless,serverless-framework","A_Id":70711883,"CreationDate":"2022-01-14T13:46:00.000","Title":"How to run\/debug serverless(framework) application locally?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have this application created with serverless framework using python language, but I am not finding a way to debug it locally or at least run it just to test it out before deploying it to amazon's web services.\nIs there any way to run serverless application (with python) using pycharm or any other tool?","AnswerCount":3,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":243,"Q_Id":70711552,"Users Score":0,"Answer":"Running Lambda locally. First, you need to be able to run Lambda locally. ...\nEnable PyCharm to run bash scripts. Now we want to run python-lambda-local from PyCharm rather than the terminal. ...\nCreate a bash script. ...\nEdit Run Configurations in PyCharm. ...\nEnjoy!","Q_Score":0,"Tags":"python,amazon-web-services,serverless,serverless-framework","A_Id":70713853,"CreationDate":"2022-01-14T13:46:00.000","Title":"How to run\/debug serverless(framework) application locally?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a code to test an app, and I need to record the time that the progress bar is present on the page. I have an idea in mind with a while loop and try-except, but I am afraid it might be inaccurate due to the possible delays with finding an element function. Any ideas? Python preferred.","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":40,"Q_Id":70719960,"Users Score":0,"Answer":"This may have been your thought but I'd try using EC.visibility_of_element_located in a while loop. When the element is first located, store the time in a variable as the above answer suggests. Then when the element is no longer visible, store the time in another variable and stop the loop","Q_Score":0,"Tags":"python,selenium,appium,appium-android","A_Id":70720728,"CreationDate":"2022-01-15T08:36:00.000","Title":"Record the time that the element is present on screen","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"If I want to use Bootstrap in django-tables2 what should I do?\nWhere I should write DJANGO_TABLES2_TEMPLATE = 'django_tables2\/bootstrap4.html'\nIf I want to use bootstrap5 what should I do?","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":87,"Q_Id":70725190,"Users Score":1,"Answer":"Create your own template file and specify that in the settings instead.\nYou need to make it a copy but with bootstrap5 elements\nYou specify the template in settings.py","Q_Score":0,"Tags":"python,django,bootstrap-4,django-views,django-tables2","A_Id":70725783,"CreationDate":"2022-01-15T20:30:00.000","Title":"Django_tables2 : using bootstrap in django-tables2","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Hi I've a Lambda function treated as a webhook. The webhook may be called multiple time simultaneously with same data. In the lambda function, I check if the transaction record is present in the DynamoDB or not. If it's present in db the Lambda simply returns otherwise it execute further. The problem arises here that when checking if a record in db the Lambda get called again and that check fails because the previous transaction still not inserted in db. and transaction can get executed multiple times.\nMy question is how to handle this situation. will SQS be helpful in this situation?","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":112,"Q_Id":70730423,"Users Score":0,"Answer":"\" if it's present in db the lambda simply return otherwise it execute further\" given that, is it possible to use FIFO queue and use some \"key\" from the data as deduplication id (fifo) and that would mean all duplicate messages would never make it to your logic and then you would also need\ndynamodb's \"strongly consistent\" option.","Q_Score":0,"Tags":"python,aws-lambda,amazon-dynamodb,amazon-sqs,atomic","A_Id":70734230,"CreationDate":"2022-01-16T13:22:00.000","Title":"Prevent duplicate DynamoDB transaction","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a JSON value that comes directly from a DB that has this label\nGERP++_RS\nThe offending code is basically this\n{{ annovar.GERP++RS}} \nIn the template. The JSON contains those keys in it and cannot be modified.\nThis is part of a big dictionary and I need to display the correspondent value on a HTML page, but Django gives me this error\nCould not parse the remainder: '++_RS' from 'annovar.GERP++_RS'\nWhat would be best strategy to retrieve the value from this key? Would I need to process it before it gets to the template?\nThanks in advance","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":27,"Q_Id":70732282,"Users Score":0,"Answer":"Easier was was to access the JSON value in the view and send to the template.","Q_Score":1,"Tags":"python,json,django","A_Id":70749013,"CreationDate":"2022-01-16T17:05:00.000","Title":"Django - Could not parse the remainder: '++_RS' from 'annovar.GERP++_RS'","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm not using CDN or any link for CKEditor but I have PIP installed it using pip install django-ckeditor. I have added all necessary CSPs and CKEditor configurations in settings.py file but CKEditor is not working in html.\nPlease help me fix it.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":54,"Q_Id":70757281,"Users Score":0,"Answer":"Try\n<p> {{form.media}} {{form.as_p}} <\/p>\n<p> {{form.media}} {{form.as_p|safe}} <\/p>","Q_Score":0,"Tags":"python,django,ckeditor","A_Id":70914967,"CreationDate":"2022-01-18T14:31:00.000","Title":"How to add CSP for Django CKEditor","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm busy programming a personal browser in python for day-to-day use and potentially to replace other browsers on my rig i.e firefox and chrome.\nI'd just gotten the basic framework down and opened google on it to test, when the first site I opened flooded me with ads which got me wondering.\nAre there any potential security threats I'm opening myself up to by using a homemade browser and what kind of prevention measures would one of these established companies put into place to protect there users? Above and beyond personal AV software of course.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":40,"Q_Id":70771907,"Users Score":0,"Answer":"There is a module called 'woob' - web outside of browser which it is said that \"Its nice project for non-sensitive data but a big fat watering hole target for financial info.\"  Which is a module that could be updated , like the requests module that could be updated with theft features , and thats the problem - the use of another module that you have no control over for sensitive data.\nThe measures you could take is that current modules are intact and secure , and monitor any updates or prevent updates .","Q_Score":0,"Tags":"python,security,browser,ads","A_Id":70772621,"CreationDate":"2022-01-19T13:57:00.000","Title":"Potential Security Risk of Browser Coded in Python","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"When I try to access my Django application on the production server (AWS EBS), it keeps returning the following error (1054, \"Unknown column 'two_factor_phonedevice.throttling_failure_timestamp' in 'field list'\").\nStrangely, the app works fine when running locally using the exact same MYSQL database (AWS RDS) and settings.\nI have tried dropping the database and re-running migrations believing it was due to an inconsistency between my db and migrations files however I still keep getting the same error.\nI am using the django_two_authentication module for the user authentication\/logins. The table two_factor_phonedevice is created by the module to track the user devices registered for two factor authentication.\nI cannot seem to solve why the column can be found when running locally but cannot be found on the production server despite both using the same database.","AnswerCount":2,"Available Count":2,"Score":1.2,"is_accepted":true,"ViewCount":33,"Q_Id":70783922,"Users Score":0,"Answer":"Turns out the module version was not specified in the production requirements.txt file meaning the newest version (which happened to have a different db schema) was installed by default causing different versions to be running locally and in production environments.\nTo resolve this I explicitly set the module version in the requirements.txt file to match that of the local one.","Q_Score":0,"Tags":"python,django,amazon-web-services","A_Id":70799054,"CreationDate":"2022-01-20T09:43:00.000","Title":"Django: Unknown column error when running on production server","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"When I try to access my Django application on the production server (AWS EBS), it keeps returning the following error (1054, \"Unknown column 'two_factor_phonedevice.throttling_failure_timestamp' in 'field list'\").\nStrangely, the app works fine when running locally using the exact same MYSQL database (AWS RDS) and settings.\nI have tried dropping the database and re-running migrations believing it was due to an inconsistency between my db and migrations files however I still keep getting the same error.\nI am using the django_two_authentication module for the user authentication\/logins. The table two_factor_phonedevice is created by the module to track the user devices registered for two factor authentication.\nI cannot seem to solve why the column can be found when running locally but cannot be found on the production server despite both using the same database.","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":33,"Q_Id":70783922,"Users Score":0,"Answer":"I am not familiar with django_two_authentication specifically, but I would check the different settings module you are using in each environment.\nYou may have differences in the INSTALLED_APPS or some other relevant entry.","Q_Score":0,"Tags":"python,django,amazon-web-services","A_Id":70784056,"CreationDate":"2022-01-20T09:43:00.000","Title":"Django: Unknown column error when running on production server","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"when i works with coverage i see that when i want to run test with it i must code for example like \"coverage run manage.py test src.apps.accounts.tests \" in terminal and when i want see the result i must write \"coverage report --include=src\/apps\/service\/accounts\/* -m \" .my question is why we use \". \" for run and use \"\/ \" for see the result? and in general when we should use \".\" and when we should use \"\/\" (this example did not only one case i see so i want a way to understand when should use each other of them)\n*in advance i am tank you for get me full solution and read the my question that write with my weak english understand.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":43,"Q_Id":70784035,"Users Score":0,"Answer":"\".\" is the pythonic way of writing paths, \"\/\" is for general purpose\nWhen you are including apps in your settings.py, you will write it with \".\"\nWhen you are saving a file on your computer (with notepad or any other software), you will use \"\/\"","Q_Score":0,"Tags":"python,django,path,filesystems,test-coverage","A_Id":70785125,"CreationDate":"2022-01-20T09:51:00.000","Title":"Different structure path of python base program","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am building a Web app and I need to access an external API which only accepts an URL to my image in order to process it. These images will be taken from the app, therefore I am looking for a way to generate a URL based on them.\nIs there any way to do that directly from python, generating the link?\nEdit: The web app will only be local for now, so these images are only local, on my computer.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":75,"Q_Id":70786473,"Users Score":0,"Answer":"The external API will not be able to access your local images even if you host them using a local webserver. Instead, you can upload the images to storage services like AWS S3 or Azure Blob storage, and then provide those image URLs to the external API.\nThis would be the simplest to do if your images aren't many in number.\nIf there are lot of images, then instead of uploading each one of them, you may want to run a local webserver[ e.g nodejs, etc] and then use ngrok tunnels so that you can get a public URL that you can give to external API.","Q_Score":0,"Tags":"python,image,api,url,web-applications","A_Id":70787275,"CreationDate":"2022-01-20T12:42:00.000","Title":"How can I convert a local image to a URL for accessing external APIs?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm finding that in some cases web pages are being rendered in one browser materially different than another browser.  Specifically, Playwright running webkit is rendering a different structure than what I see when viewing the page in a standalone Chrome browser.  No clue why and I can't do anything about it.  This isn't a Playwright issue, it is rendering it the same way as a standalone browser would.  Problem is I don't know of an up-to-date webkit based browser for Windows.\nIs there a way using just Playwright to open a browser window that will let me manually enter a url and inspect the page as Playwright renders it?","AnswerCount":2,"Available Count":1,"Score":0.0996679946,"is_accepted":false,"ViewCount":470,"Q_Id":70795648,"Users Score":1,"Answer":"In playwright.config you have option\nchannnel: \"chrome\"\nSo with this you will start chrome, not chromium driver.","Q_Score":1,"Tags":"python,browser,playwright,playwright-python","A_Id":70798432,"CreationDate":"2022-01-21T02:24:00.000","Title":"Can Playwright be used to launch a browser instance","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to query database and showing in html, but in my database it's an int like 1233405061023\nand i want to display in my template like this 12334050XXX23, it's that possible or i have to create another column with the custom formating like i mentioned above and display that column instead of clean one ?","AnswerCount":1,"Available Count":1,"Score":0.3799489623,"is_accepted":false,"ViewCount":19,"Q_Id":70798131,"Users Score":2,"Answer":"Do I get it right that you want to replace some digits with \"X\" in your output?\nTo achieve this you could either create a separate column in the db and store it that way (use a custom save() method in your model).\nAn alternative solution might be to reformat it in your view for display","Q_Score":0,"Tags":"python,django,database,backend","A_Id":70798172,"CreationDate":"2022-01-21T08:07:00.000","Title":"Django custom display in html of a query","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm quite new to scrapy and pythonic programming - so I guess this question is more a noob question:\nWhy do we have a separate file (items.py) to store the items class in, if we could also just include it in the spider file (or can't we?) ?\nIs it just to create a better structure? Are there any Python principles to structuring a project that I could study?","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":24,"Q_Id":70807859,"Users Score":1,"Answer":"The items.py file is a separate file so as to separate concerns similar to the pipelines.py and middlewares.py files. Separating the files like that makes for a better structured project and follows good programming guidelines.\nYou can however put everything in the spider class and it will still run fine but the code may quickly become unmaintaianble.","Q_Score":0,"Tags":"python,scrapy","A_Id":70810104,"CreationDate":"2022-01-21T21:34:00.000","Title":"Why is the Items class in Scrapy stored in a separate file?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am working on changing the color in tree view in odoo 13 for colorize tree view when there is a difference of 15 days between two dates for example\nI have this when one is bigger than the other\ntree decoration-danger=\" (date1 > date2)\"\nbut i need  when there is a difference of 15 days between two dates.\nThanks","AnswerCount":2,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":132,"Q_Id":70815923,"Users Score":1,"Answer":"You should persist a boolean field diff_15: True if difference(date1, date2) > 15 and False otherwise, then use this field in your XML to achieve the proper class decoration-danger=\"diff_15 == True\"\nI hope this can be helpful for you.","Q_Score":0,"Tags":"python-3.x,treeview,odoo,decoration","A_Id":70841718,"CreationDate":"2022-01-22T18:35:00.000","Title":"Changing the color in tree view when there is a difference of 15 days between two dates in odoo 13","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a Python application (windows machine) connecting to on-prem SQL-Server to fetch the data and do some python functions.\nI wanted this application keeps continuously check the data periodically.\nSo, I kept this application in AWS-ECS and assigned the cron-job using lambda.\nThe problem I am facing in cloud-watch logs,\nI could see the error: \"timeout: invalid time interval 'm'","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":34,"Q_Id":70840767,"Users Score":0,"Answer":"I created and run my application in Windows environment in my machine. But when I deploy the code in AWS. In particularly, the application triggers with lambda its working in a Linux environment so the work directory for windows and linux path must be changed. For example:\nin windows: app\/foldername\/.py\nin Linux: src\/foldername\/.py\nSo with this small working directory issue, it fails to look the code path when Lambda trigger. That is the reason the server connection timeout error.","Q_Score":0,"Tags":"python,aws-lambda,amazon-ecs","A_Id":70906479,"CreationDate":"2022-01-24T21:31:00.000","Title":"deployed application fails with timeout","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I have a username and password I built from scratch, this works fine until I thought, people forgetting their password.\nI would like to find a way to check when a url has been visited to then change the password for urls like \"example.com\/fp?id=\" that has been sent by email.\nI cannot use the flask-security module at this point due to the way I have created the databases and how its integrated into my website.\nYes I have looked, and it seems most ways require using flask-login and flask-security, thanks for any answers in advance :)","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":47,"Q_Id":70841502,"Users Score":0,"Answer":"Fixed! I just sent an email using smptlib and determining the id using that","Q_Score":0,"Tags":"python,email,flask,jinja2,confirm","A_Id":70893762,"CreationDate":"2022-01-24T22:59:00.000","Title":"Flask Email Conformation For Password Reset","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have installed python 3.10.2, while creating virtualenv\nI did pip install virtualenv. then I create myenv (virtualenv mypython), but I got error like this. could you please help me what do I do\nthe error is :\nC:\\Users\\ARROWIN PHOTOGRAPHY\\Felix\\djangoProject>virtualenv mypython\n'virtualenv' is not recognized as an internal or external command,\noperable program or batch file.","AnswerCount":2,"Available Count":2,"Score":0.0996679946,"is_accepted":false,"ViewCount":35,"Q_Id":70859821,"Users Score":1,"Answer":"In python3 is better to use venv instead. Here are the steps to create your environment:\nIn your project directory, open the terminal:\n\npython3 -m venv venv\n\nThen:\n\nsource venv\/bin\/activate","Q_Score":0,"Tags":"python,pyenv-virtualenv","A_Id":70859983,"CreationDate":"2022-01-26T07:25:00.000","Title":"problems comes while creating virtualenv","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have installed python 3.10.2, while creating virtualenv\nI did pip install virtualenv. then I create myenv (virtualenv mypython), but I got error like this. could you please help me what do I do\nthe error is :\nC:\\Users\\ARROWIN PHOTOGRAPHY\\Felix\\djangoProject>virtualenv mypython\n'virtualenv' is not recognized as an internal or external command,\noperable program or batch file.","AnswerCount":2,"Available Count":2,"Score":0.0996679946,"is_accepted":false,"ViewCount":35,"Q_Id":70859821,"Users Score":1,"Answer":"Make sure that you have set up the python PATH variables correctly and that in your path e.g. ..\\AppData\\Local\\Programs\\Python\\Python39\\Scripts you can locate the python executable virtualenv.exe\nIf you are using multiple python versions on your local machine be careful while using PIP install. It is better to use the command pip3.x install ... (x is meant to be a specific version of pip e.g. pip3.9) so you can be sure you installed the virtualenv in the correct version of Python, and afterward, you can also select a specific python version when using virtualenv by virtualenv env -p pythonxx the xx is meant as a python version.","Q_Score":0,"Tags":"python,pyenv-virtualenv","A_Id":70860755,"CreationDate":"2022-01-26T07:25:00.000","Title":"problems comes while creating virtualenv","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I need to implement payment with credit card in a Django Project. But, I don't know how to start, and I can't find any information about do it.\n\nWhat's the best module to do the integration?\nThe module is well documented? and it has code examples about the correct implementation.\n\nPlease, if you know how to do it, help me. I'm collaborating with an ONG and we need to implement this for donations payments.\nThanks. Regards,","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":109,"Q_Id":70869240,"Users Score":0,"Answer":"You need a payment provider. A lot of that. The most popular worldwide are Paypal, Stripe, Braintree, others. You can find local providers if you're outside the USA.\nYou need to check the API documentation of the selected provider. A lot of them have public API docs and links you can find on the landing pages. Usually, this is REST API, so you can use the Requests library to make the integration. Don't forget to write integrational tests!\nYou need to be compliant with the rules and policies of the selected provider.\nYou need to have a bank account to make a settlement from the payment provider.\nMost providers have a sandbox to test API without having a real production-approved account.\n\nWhen I said, \"You need...\" I mean you or your company needs to provide such information or create a needed account(s), bank accounts, etc.","Q_Score":0,"Tags":"python,django,payment","A_Id":70870244,"CreationDate":"2022-01-26T19:36:00.000","Title":"Credit card payment in Django (Python) with RedSys","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm trying to deploy my Django 4.0.1 application to Google App Engine. But I'm receiving an error:\n\nCould not find a version that satisfies the requirement Django==4.0.1.\n\nOn a localhost the app works fine. The same error I have with asgiref==3.5.0\nThe full text of this error:\n\nERROR: Could not find a version that satisfies the requirement\nDjango==4.0.1 (from -r requirements.txt (line 6)) (from versions:\n1.1.3, 1.1.4, 1.2, 1.2.1, 1.2.2, 1.2.3, 1.2.4,\n1.2.5, 1.2.6, 1.2.7, 1.3, 1.3.1, 1.3.2, 1.3.3, 1.3.4, 1.3.5, 1.3.6, 1.3.7, 1.4, 1.4.1, 1.4.2, 1.4.3, 1.4.4, 1.4.5, 1.4.6, 1.4.7, 1.4.8, 1.4.9, 1.4.10, 1.4.11, 1.4.12, 1.4.13, 1.4.14,\n1.4.15, 1.4.16, 1.4.17, 1.4.18, 1.4.19, 1.4.20, 1.4.21, 1.4.22, 1.5, 1.5.1, 1.5.2, 1.5.3, 1.5.4, 1.5.5, 1.5.6, 1.5.7, 1.5.8, 1.5.9, 1.5.10, 1.5.11, 1.5.12, 1.6, 1.6.1, 1.6.2, 1.6.3, 1.\n6.4, 1.6.5, 1.6.6, 1.6.7, 1.6.8, 1.6.9, 1.6.10, 1.6.11, 1.7, 1.7.1, 1.7.2, 1.7.3, 1.7.4, 1.7.5, 1.7.6, 1.7.7, 1.7.8, 1.7.9, 1.7.10, 1.7.11, 1.8a1, 1.8b1, 1.8b2, 1.8rc1, 1.8, 1.8.1, 1.8 .2, 1.8.3, 1.8.4, 1.8.5, 1.8.6, 1.8.7, 1.8.8, 1.8.9, 1.8.10, 1.8.11, 1.8.12, 1.8.13, 1.8.14, 1.8.15, 1.8.16, 1.8.17, 1.8.18, 1.8.19, 1.9a1, 1.9b1, 1.9rc1, 1.9rc2, 1.9, 1.9.1, 1.9.2, 1.\n9.3, 1.9.4, 1.9.5, 1.9.6, 1.9.7, 1.9.8, 1.9.9, 1.9.10, 1.9.11, 1.9.12, 1.9.13, 1.10a1, 1.10b1, 1.10rc1, 1.10, 1.10.1, 1.10.2, 1.10.3, 1.10.4, 1.10.5, 1.10.6, 1.10.7, 1.10.8, 1.11a1, 1. 11b1, 1.11rc1, 1.11, 1.11.1, 1.11.2, 1.11.3, 1.11.4, 1.11.5, 1.11.6, 1.11.7, 1.11.8, 1.11.9, 1.11.10, 1.11.11, 1.11.12, 1.11.13, 1.11.14, 1.11.15, 1.11.16, 1.11.17, 1.11.18, 1.11.20, 1 .11.21, 1.11.22, 1.11.23, 1.11.24, 1.11.25, 1.11.26, 1.11.27, 1.11.28, 1.11.29, 2.0a1, 2.0b1, 2.0rc1, 2.0, 2.0.1, 2.0.2, 2.0.3, 2.0.4, 2.0.5, 2.0.6, 2.0.7, 2.0.8, 2.0.9, 2.0.10, 2.0.12 , 2.0.13, 2.1a1, 2.1b1, 2.1rc1, 2.1, 2.1.1, 2.1.2, 2.1.3, 2.1.4, 2.1.5, 2.1.7, 2.1.8, 2.1.9, 2.1.10, 2.1.11, 2.1.12, 2.1.13, 2.1.14, 2.1.15, 2.2a1, 2.2b1, 2.2rc1, 2.2, 2.2.1, 2.2.2, 2.\n2.3, 2.2.4, 2.2.5, 2.2.6, 2.2.7, 2.2.8, 2.2.9, 2.2.10, 2.2.11, 2.2.12, 2.2.13, 2.2.14, 2.2.15, 2.2.16, 2.2.17, 2.2.18, 2.2.19, 2.2.20, 2.2.21, 2.2.22, 2.2.23, 2.2.24, 2.2.25, 2.2.26, 3 .0a1, 3.0b1, 3.0rc1, 3.0, 3.0.1, 3.0.2, 3.0.3, 3.0.4, 3.0.5, 3.0.6, 3.0.7, 3.0.8, 3.0.9, 3.0.10, 3.0.11, 3.0.12, 3.0.13, 3.0.14, 3.1a1, 3.1b1, 3.1rc1, 3.1, 3.1.1, 3.1.2, 3.1.3, 3.1.4,\n3.1.5, 3.1.6, 3.1.7, 3.1.8, 3.1.9, 3.1.10, 3.1.11, 3.1.12, 3.1.13, 3.1.14, 3.2a1, 3.2b1, 3.2rc1, 3.2, 3.2.1, 3.2.2, 3.2.3, 3.2.4, 3.2.5, 3.2.6, 3.2.7, 3.2.8, 3.2.9, 3.2.10, 3.2.11)     Step #1: ERROR: No matching distribution found for Django==4.0.1 (from -r\nrequirements.txt (line 6)) Step #1: WARNING: You are using pip version\n20.2.2; however, version 21.3.1 is available. Step #1: You should consider upgrading via the '\/env\/bin\/python -m pip install --upgrade\npip' command.\n\nI have Google Cloud SDK 369.0.0\nWhat is the reason and how to fix it?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":158,"Q_Id":70870462,"Users Score":2,"Answer":"The error is telling you that the maximum version of Django available on GCP for GAE is 3.2.11. Instead of specifying version 4.0.1 in your requirements.txt file, you can either use a lower version (any of the ones listed in your error) or don't specify a version and GAE will pick the latest that it has.\nNote: Google (Cloud Providers) don't always\/necessarily support the highest version of an App\/package immediately. It usually takes them a bit of time before they add support for it whereas you can download a latest version to your local environment (your computer and work with it).","Q_Score":0,"Tags":"python-3.x,django,google-app-engine,google-cloud-platform","A_Id":70872771,"CreationDate":"2022-01-26T21:26:00.000","Title":"GCP: Google App Engine flexible + Django 4.0.1 problem on deployment","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"d=(\"adf\": 1, \"bdc\":2,\"cdsd\":4)\ndef longest_key (d):\nlongest None\nfor key in d: if not longest or len (key) > len (longest):\nlongest = key\nreturn longest\nprint(longest_key(d)).\nWhen i do this the program is fine and no error occurs but\nd=(\"adf\": 1, \"bdc\":2,\"cdsd\":4) def longest_key (d):\nlongest = None\nfor key in d: if len (key) > len (longest):\nlongest key\nreturn longest print (longest_key(d)).\nWhen i do this it shows type error object of type Nonetype has no len()","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":21,"Q_Id":70872964,"Users Score":0,"Answer":"You set longest to None and you're trying to get its length. In the second function, it errors because you don't have the if not longest condition. The first function works because short circuit evaluation means that len(longest) will not be evaluated.","Q_Score":0,"Tags":"python,error-handling,non-type","A_Id":70873022,"CreationDate":"2022-01-27T03:28:00.000","Title":"Nonetype has no len()","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a bullet class and sometimes when it have to hit something it doesn't hit it(intersects function doesn't senses when it hits a thing(in my case the zombie) so it pierces through it and i don't know why.\nPlease help me!\nThanks","AnswerCount":2,"Available Count":2,"Score":1.2,"is_accepted":true,"ViewCount":54,"Q_Id":70882268,"Users Score":0,"Answer":"the problem was the collider was too small so i make it bigger and it worked","Q_Score":0,"Tags":"python,ursina","A_Id":70997333,"CreationDate":"2022-01-27T16:35:00.000","Title":"intersects doesn't always work ursina engine","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a bullet class and sometimes when it have to hit something it doesn't hit it(intersects function doesn't senses when it hits a thing(in my case the zombie) so it pierces through it and i don't know why.\nPlease help me!\nThanks","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":54,"Q_Id":70882268,"Users Score":0,"Answer":"For bullets I recommend using raycast instead, unless the bullet is big and moves slowly. Otherwise what will often happen is that the bullet moves too far in a frame and can miss the intersection.","Q_Score":0,"Tags":"python,ursina","A_Id":70887160,"CreationDate":"2022-01-27T16:35:00.000","Title":"intersects doesn't always work ursina engine","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to install django=4.0.1 on my mac with pipenv.\n(1) my python: \/usr\/bin\/python3 (3.7.3)\n(2) my pipenv version: version 2022.1.8\n(3) I just updated 'pip'\nBut I get a message below\n[pipenv.exceptions.InstallError]: ERROR: Could not find a version that satisfies the requirement django==4.0.1 (from versions: 1.1.3, 1.1.4, 1.2, 1.2.1, 1.2.2, 1.2.3, 1.2.4, 1.2.5, 1.2.6, 1.2.7, 1.3, 1.3.1, 1.3.2, 1.3.3, 1.3.4, 1.3.5, 1.3.6, 1.3.7, 1.4, 1.4.1, 1.4.2, 1.4.3, 1.4.4, 1.4.5, 1.4.6, 1.4.7, 1.4.8, 1.4.9, 1.4.10, 1.4.11, 1.4.12, 1.4.13, 1.4.14, 1.4.15, 1.4.16, 1.4.17, 1.4.18, 1.4.19, 1.4.20, 1.4.21, 1.4.22, 1.5, 1.5.1, 1.5.2, 1.5.3, 1.5.4, 1.5.5, 1.5.6, 1.5.7, 1.5.8, 1.5.9, 1.5.10, 1.5.11, 1.5.12, 1.6, 1.6.1, 1.6.2, 1.6.3, 1.6.4, 1.6.5, 1.6.6, 1.6.7, 1.6.8, 1.6.9, 1.6.10, 1.6.11, 1.7, 1.7.1, 1.7.2, 1.7.3, 1.7.4, 1.7.5, 1.7.6, 1.7.7, 1.7.8, 1.7.9, 1.7.10, 1.7.11, 1.8a1, 1.8b1, 1.8b2, 1.8rc1, 1.8, 1.8.1, 1.8.2, 1.8.3, 1.8.4, 1.8.5, 1.8.6, 1.8.7, 1.8.8, 1.8.9, 1.8.10, 1.8.11, 1.8.12, 1.8.13, 1.8.14, 1.8.15, 1.8.16, 1.8.17, 1.8.18, 1.8.19, 1.9a1, 1.9b1, 1.9rc1, 1.9rc2, 1.9, 1.9.1, 1.9.2, 1.9.3, 1.9.4, 1.9.5, 1.9.6, 1.9.7, 1.9.8, 1.9.9, 1.9.10, 1.9.11, 1.9.12, 1.9.13, 1.10a1, 1.10b1, 1.10rc1, 1.10, 1.10.1, 1.10.2, 1.10.3, 1.10.4, 1.10.5, 1.10.6, 1.10.7, 1.10.8, 1.11a1, 1.11b1, 1.11rc1, 1.11, 1.11.1, 1.11.2, 1.11.3, 1.11.4, 1.11.5, 1.11.6, 1.11.7, 1.11.8, 1.11.9, 1.11.10, 1.11.11, 1.11.12, 1.11.13, 1.11.14, 1.11.15, 1.11.16, 1.11.17, 1.11.18, 1.11.20, 1.11.21, 1.11.22, 1.11.23, 1.11.24, 1.11.25, 1.11.26, 1.11.27, 1.11.28, 1.11.29, 2.0a1, 2.0b1, 2.0rc1, 2.0, 2.0.1, 2.0.2, 2.0.3, 2.0.4, 2.0.5, 2.0.6, 2.0.7, 2.0.8, 2.0.9, 2.0.10, 2.0.12, 2.0.13, 2.1a1, 2.1b1, 2.1rc1, 2.1, 2.1.1, 2.1.2, 2.1.3, 2.1.4, 2.1.5, 2.1.7, 2.1.8, 2.1.9, 2.1.10, 2.1.11, 2.1.12, 2.1.13, 2.1.14, 2.1.15, 2.2a1, 2.2b1, 2.2rc1, 2.2, 2.2.1, 2.2.2, 2.2.3, 2.2.4, 2.2.5, 2.2.6, 2.2.7, 2.2.8, 2.2.9, 2.2.10, 2.2.11, 2.2.12, 2.2.13, 2.2.14, 2.2.15, 2.2.16, 2.2.17, 2.2.18, 2.2.19, 2.2.20, 2.2.21, 2.2.22, 2.2.23, 2.2.24, 2.2.25, 2.2.26, 3.0a1, 3.0b1, 3.0rc1, 3.0, 3.0.1, 3.0.2, 3.0.3, 3.0.4, 3.0.5, 3.0.6, 3.0.7, 3.0.8, 3.0.9, 3.0.10, 3.0.11, 3.0.12, 3.0.13, 3.0.14, 3.1a1, 3.1b1, 3.1rc1, 3.1, 3.1.1, 3.1.2, 3.1.3, 3.1.4, 3.1.5, 3.1.6, 3.1.7, 3.1.8, 3.1.9, 3.1.10, 3.1.11, 3.1.12, 3.1.13, 3.1.14, 3.2a1, 3.2b1, 3.2rc1, 3.2, 3.2.1, 3.2.2, 3.2.3, 3.2.4, 3.2.5, 3.2.6, 3.2.7, 3.2.8, 3.2.9, 3.2.10, 3.2.11)\n[pipenv.exceptions.InstallError]: ERROR: No matching distribution found for django==4.0.1\nIs there a way I can install django 4.0.1?\nThanks.","AnswerCount":2,"Available Count":2,"Score":1.2,"is_accepted":true,"ViewCount":279,"Q_Id":70893558,"Users Score":4,"Answer":"That's because django 4.0.1 isn't avalible for python 3.7.3. It's only available for python 3.8+, try to change your python version","Q_Score":0,"Tags":"python,django","A_Id":70893611,"CreationDate":"2022-01-28T12:09:00.000","Title":"I get an error when installing django with pipenv","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to install django=4.0.1 on my mac with pipenv.\n(1) my python: \/usr\/bin\/python3 (3.7.3)\n(2) my pipenv version: version 2022.1.8\n(3) I just updated 'pip'\nBut I get a message below\n[pipenv.exceptions.InstallError]: ERROR: Could not find a version that satisfies the requirement django==4.0.1 (from versions: 1.1.3, 1.1.4, 1.2, 1.2.1, 1.2.2, 1.2.3, 1.2.4, 1.2.5, 1.2.6, 1.2.7, 1.3, 1.3.1, 1.3.2, 1.3.3, 1.3.4, 1.3.5, 1.3.6, 1.3.7, 1.4, 1.4.1, 1.4.2, 1.4.3, 1.4.4, 1.4.5, 1.4.6, 1.4.7, 1.4.8, 1.4.9, 1.4.10, 1.4.11, 1.4.12, 1.4.13, 1.4.14, 1.4.15, 1.4.16, 1.4.17, 1.4.18, 1.4.19, 1.4.20, 1.4.21, 1.4.22, 1.5, 1.5.1, 1.5.2, 1.5.3, 1.5.4, 1.5.5, 1.5.6, 1.5.7, 1.5.8, 1.5.9, 1.5.10, 1.5.11, 1.5.12, 1.6, 1.6.1, 1.6.2, 1.6.3, 1.6.4, 1.6.5, 1.6.6, 1.6.7, 1.6.8, 1.6.9, 1.6.10, 1.6.11, 1.7, 1.7.1, 1.7.2, 1.7.3, 1.7.4, 1.7.5, 1.7.6, 1.7.7, 1.7.8, 1.7.9, 1.7.10, 1.7.11, 1.8a1, 1.8b1, 1.8b2, 1.8rc1, 1.8, 1.8.1, 1.8.2, 1.8.3, 1.8.4, 1.8.5, 1.8.6, 1.8.7, 1.8.8, 1.8.9, 1.8.10, 1.8.11, 1.8.12, 1.8.13, 1.8.14, 1.8.15, 1.8.16, 1.8.17, 1.8.18, 1.8.19, 1.9a1, 1.9b1, 1.9rc1, 1.9rc2, 1.9, 1.9.1, 1.9.2, 1.9.3, 1.9.4, 1.9.5, 1.9.6, 1.9.7, 1.9.8, 1.9.9, 1.9.10, 1.9.11, 1.9.12, 1.9.13, 1.10a1, 1.10b1, 1.10rc1, 1.10, 1.10.1, 1.10.2, 1.10.3, 1.10.4, 1.10.5, 1.10.6, 1.10.7, 1.10.8, 1.11a1, 1.11b1, 1.11rc1, 1.11, 1.11.1, 1.11.2, 1.11.3, 1.11.4, 1.11.5, 1.11.6, 1.11.7, 1.11.8, 1.11.9, 1.11.10, 1.11.11, 1.11.12, 1.11.13, 1.11.14, 1.11.15, 1.11.16, 1.11.17, 1.11.18, 1.11.20, 1.11.21, 1.11.22, 1.11.23, 1.11.24, 1.11.25, 1.11.26, 1.11.27, 1.11.28, 1.11.29, 2.0a1, 2.0b1, 2.0rc1, 2.0, 2.0.1, 2.0.2, 2.0.3, 2.0.4, 2.0.5, 2.0.6, 2.0.7, 2.0.8, 2.0.9, 2.0.10, 2.0.12, 2.0.13, 2.1a1, 2.1b1, 2.1rc1, 2.1, 2.1.1, 2.1.2, 2.1.3, 2.1.4, 2.1.5, 2.1.7, 2.1.8, 2.1.9, 2.1.10, 2.1.11, 2.1.12, 2.1.13, 2.1.14, 2.1.15, 2.2a1, 2.2b1, 2.2rc1, 2.2, 2.2.1, 2.2.2, 2.2.3, 2.2.4, 2.2.5, 2.2.6, 2.2.7, 2.2.8, 2.2.9, 2.2.10, 2.2.11, 2.2.12, 2.2.13, 2.2.14, 2.2.15, 2.2.16, 2.2.17, 2.2.18, 2.2.19, 2.2.20, 2.2.21, 2.2.22, 2.2.23, 2.2.24, 2.2.25, 2.2.26, 3.0a1, 3.0b1, 3.0rc1, 3.0, 3.0.1, 3.0.2, 3.0.3, 3.0.4, 3.0.5, 3.0.6, 3.0.7, 3.0.8, 3.0.9, 3.0.10, 3.0.11, 3.0.12, 3.0.13, 3.0.14, 3.1a1, 3.1b1, 3.1rc1, 3.1, 3.1.1, 3.1.2, 3.1.3, 3.1.4, 3.1.5, 3.1.6, 3.1.7, 3.1.8, 3.1.9, 3.1.10, 3.1.11, 3.1.12, 3.1.13, 3.1.14, 3.2a1, 3.2b1, 3.2rc1, 3.2, 3.2.1, 3.2.2, 3.2.3, 3.2.4, 3.2.5, 3.2.6, 3.2.7, 3.2.8, 3.2.9, 3.2.10, 3.2.11)\n[pipenv.exceptions.InstallError]: ERROR: No matching distribution found for django==4.0.1\nIs there a way I can install django 4.0.1?\nThanks.","AnswerCount":2,"Available Count":2,"Score":0.1973753202,"is_accepted":false,"ViewCount":279,"Q_Id":70893558,"Users Score":2,"Answer":"You got this error because you use python 3,7. Django 4.x support only python 3.8+","Q_Score":0,"Tags":"python,django","A_Id":70893618,"CreationDate":"2022-01-28T12:09:00.000","Title":"I get an error when installing django with pipenv","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm getting the OS error: No space left on device, when saving somewhere north of 17 million small files into a single directory on Amazon Sagemaker local storage. I'm using the numpy.save function, python 3.8.12. df -h shows that the drive is only about 80% full. cat \/proc\/sys\/fs\/file-max returns 6,269,329, which is a lot less than the number of saved files, df -i returns 28% IUse% for the parent folder. What could be the problem here?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":85,"Q_Id":70900116,"Users Score":0,"Answer":"SageMaker Notebook instance are equipped with an \"ML Volume\" mounted at \/home\/ec2-user\/SageMaker, whose size you can control, and that is 5GB by default, and that can be up to 16TB.\nIf you have the right permissions, you can increase volume size (it requires to switch off the instance and restart it)\nThen, edit your code to make sure it writes to that folder","Q_Score":1,"Tags":"python,amazon-sagemaker","A_Id":70945807,"CreationDate":"2022-01-28T20:46:00.000","Title":"No space left on device: Amazon Sagemaker can't save more files in directory even when HDD is not full","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I am using python 3.9.2 and pip 21.0.1. I've created a virtual environment. In that I installed flask 1.1.2 and Werkzeug 1.0.0.\nI tried to install coolname==1.1.0 and wtforms_components==0.10.5, it says successfully installed but it is not importing files.\nfrom coolname I want generate_slug package\nand from wtforms_components, I want TimeField\nWhat I have done to install them:\npip install WTForms-Components==0.10.5\npip install coolname\nCan you please tell me how can I get these packages?","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":19,"Q_Id":70902489,"Users Score":1,"Answer":"You might be using the global interpreter instead of your virtual environment.\nYou need to check that your IDE's interpreter is configured to that virtual environment you created. if you want to run it from the command line you first need to activate it with env_name\\Scripts\\activate and then run it.","Q_Score":0,"Tags":"python,import","A_Id":70902546,"CreationDate":"2022-01-29T05:12:00.000","Title":"unable to import coolname and wtforms_components","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying a create a simple flask app using Jupyter Notebook.\nThe Tutorial I am following is suggesting me to create a directory - templates and put the html file inside it.\nWhen I tried to create the directory, it is showing \" File already exists: templates \".\nBut I am unable to find this directory and when I tried to access it programmatically, it is showing -\nPermissionError: [WinError 5] Access is denied: 'C:\\Users\\Username\\templates'","AnswerCount":1,"Available Count":1,"Score":-0.1973753202,"is_accepted":false,"ViewCount":524,"Q_Id":70916089,"Users Score":-1,"Answer":"This may be a permissions problem.\nRunning the app as administrator may solve it.","Q_Score":2,"Tags":"python-3.x,flask,jupyter-notebook","A_Id":70916123,"CreationDate":"2022-01-30T15:27:00.000","Title":"PermissionError: [WinError 5] Access is denied: 'C:\\\\Users\\\\username\\\\templates'","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"When I update the modules I get this error message:\nTable 'crm_lead': unable to set NOT NULL on column 'partner_id'\nWhat should I do to prevent it?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":104,"Q_Id":70922850,"Users Score":4,"Answer":"There probably has changed something on the field partner_id on model crm.lead regarding required parameter. But you already have some data in database without fulfilling the NOT NULL constraint resulting from that change.\nSo you either try to fix the database table crm_lead by setting all partner_ids or you remove the required=True on that field.\nIIRC there is no required or NOT NULL on crm.lead's partner_id field in Odoo vanilla\/default code. So you probably have custom modules changing that.\nThe \"Error\" itself is only a warning. In the end Odoo can't set that constraint in database, but will work anyway.","Q_Score":1,"Tags":"python,postgresql,odoo,odoo-13,notnull","A_Id":70923363,"CreationDate":"2022-01-31T08:09:00.000","Title":"Odoo13-CE: Error message: Table 'crm_lead': unable to set NOT NULL on column 'partner_id'","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm a newcomer to Django, so sorry if this question is bad. I have looked on the internet but have not been able to find a solution. I am trying to login to a superuser account I created with manage.py. I have not modified any file in my Django project, and am using Django 3.2.5. Every time I try to log in on the admin page it gives me this error: Please enter the correct username and password for a staff account. Note that both fields may be case-sensitive (in the web browser of course). I know I am using the username and password that I used when creating the superuser account. I have created two super users the second to while trying to figure out what is going on with this error. I am using the default sqlite3 db. I am also using a anaconda virtual environment. I have also made sure to run migrations and I have flushed the database and tried again.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":70,"Q_Id":70934844,"Users Score":0,"Answer":"I have fixed it by restarting my anaconda virtual environment. I do not know how it fixed it, but it worked.","Q_Score":0,"Tags":"python,python-3.x,django,anaconda,django-admin","A_Id":70934975,"CreationDate":"2022-02-01T01:56:00.000","Title":"Django admin login not working for superuser","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am facing a strange issue that Click Button \"locator\" is not working for ie browser when I am executing from laptop (ie, not connected to an external monitor). It identifies and move to the next step but not clicking it.\nCatching point is, If I try to connect my laptop to a monitor, the code works for IE as well. Its not working only when I am running the script from laptop. Same code working fine in Chrome in laptop.\nHas anyone faced the same issue, do I need to do any resolution setting?\nI am using robot framework + Python + selenium. Sample code given below -\n${btn_Login}        \/\/*[@id=\"btnLogin\"]\nClick Button    ${btn_Login}","AnswerCount":1,"Available Count":1,"Score":0.3799489623,"is_accepted":false,"ViewCount":30,"Q_Id":70935378,"Users Score":2,"Answer":"Its running in IE after changing the Scale and layout to 100% under display setting.","Q_Score":0,"Tags":"python-3.x,selenium-webdriver,robotframework","A_Id":70938914,"CreationDate":"2022-02-01T03:49:00.000","Title":"Click button is not working for ie browser while executing from Laptop","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a lambda function lambda1 that gets triggered by an API call and computes the parameters for another job downstream that will be handled by a different function lambda2.\nThe resources required to complete the downstream job are not available immediately and will become available at some future time datetime1 which is also calculated by lambda1.\nHow do I make lambda1 schedule a message in an SNS topic that will be sent out at datetime1 instead of going out immediately? The message sent out at the correct time will then trigger lambda2 which will find all the resources in place and execute correctly.\nIs there a better way of doing this instead of SNS?\nBoth lambda1 and lambda2 are written in Python 3.8","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":121,"Q_Id":70936176,"Users Score":1,"Answer":"You would be better off using the AWS Step Functions. Step functions are generally used for orchestrating jobs with multiple Lambda functions involved and they support the wait state that you need to run a job at a specific time.\nBasically, you will create multiple states. One of the states will be wait state where you will input the wait condition (timestamp at which it will stop waiting). This is what you will send from Lambda1. The next state would be task state which will be your Lambda2.","Q_Score":0,"Tags":"python-3.x,amazon-web-services,aws-lambda,amazon-sns","A_Id":70937211,"CreationDate":"2022-02-01T06:05:00.000","Title":"AWS Send SNS message from lambda at a specified time","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm writing a script to automate a task on chrome,I'm using Python and Selenium,the problem is that the task requires clicking on a button in a chrome extension popup to finish the task but I can't initiate the click() class on a chrome extension popup using selenium.\nDo you have any idea on how we can solve such a problem ?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":47,"Q_Id":70937640,"Users Score":0,"Answer":"Alright, since no one answered my question I will answer how I solved this issue\nall  I did is that I used the Pynput library to interact with the chrome extension by simulating keyboard clicks.\nto toggle between pages and elements I had to use the Tab button which converts to\nkeyboard = Controller() keyboard.press(Key,tab) keyoard.release(Key,tab)\nin python code and added some delay between each activity so it can run smoothly without any issues.\nit might not be the best solution but at least it works now","Q_Score":0,"Tags":"python,selenium,automation,automated-tests","A_Id":71080715,"CreationDate":"2022-02-01T08:45:00.000","Title":"can't interact with popup chrome extention using Selenium in Python","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm working on a project where we are using vanilla javascript, Html and css for frontend while designing the backend in the FastAPI. The way backend connects with the frontend is using Templates, by adding the file name for a particular page and also sending the data as jinja template back to the client side. We have five pages and all are declared in the backend as get requests and we are using a specific html file for loading a particular page. So, there are mainly five html files for five pages\nNow, I was deciding to switch to reactjs as the frontend, however, react being the single page application and also just having the Routes for multiple pages, I'm wondering how to I connect it to the backend and also send data back to the client, the way I was doing it before. I tried to look for answers, couldn't find one as of now...\nAnd also I'm kind of new to Reactjs","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":217,"Q_Id":70947189,"Users Score":0,"Answer":"React, Python, and FastAPI are all great technologies that I too use. But they work more effectively when used for their intended purposes. A hammer is a great tool if you need to pound in some nails, but it's a lousy tool for other purposes such as trying to use it as an eating utensil. So you'd be well advised, if you are going to use React and FastAPI, to use them as they were intended.\nJinja templates are used for server side rendering. But React is (in essence) also a server side rendering system. Both of them will not play nicely together, at least not without more work and complexity.\nInstead you'd be better off committing to either the Jinja templating or React. If you choose Jinja, you figure out what the page will be (render) before sending it off to the client. If you choose React, you write the user-visible application, send that off to the client, and then the application on the client's browser fetches data through (usually JSON) APIs from the FastAPI back end.","Q_Score":0,"Tags":"python,reactjs,jinja2,fastapi,multipage","A_Id":70976227,"CreationDate":"2022-02-01T20:36:00.000","Title":"Is it possible to have React multi-page application while having fastapi as the backend routing each page and sending data as jinja templates","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am using FastAPI and Async SQl. I have defined the schema with email unique. But when I pass the same email to the FastAPI route. It throws error on development server\nsqlite3.IntegrityError: UNIQUE constraint failed: users.email and returns a 500 Internal response via Postman. I want to show error as a message and not 500 error what should I do ?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":175,"Q_Id":70954271,"Users Score":0,"Answer":"what is happening is an Error that the client should NOT have access to,\nthere is a difference between validation errors that YOU define and between the ORM and database engine errors the library shows, \nwhat you should do is check why are you sending a database query with an empty email! if you do so, the SQL engine will tell you that you can not put a NULL value there, which is something you did set.\nthere should be a validation before sending the query to the DB,\nin FastApi, such validation should be done with Pydantic models. \nEDIT: \nthanks to @Mecid X Recebli for his comment, I think the question has been changed and my answer is no longer valid. \\\nI answered as if you are sending an empty value of email to DB query, but your question says that you are sending a duplicate email,\nyou should do email validation in the Pydantic schema, and that is by querying the DB for that email, if you have an account with the same email, raise a validation exception inside the validation method in the pydantic shema.","Q_Score":0,"Tags":"python,sql,fastapi","A_Id":70992669,"CreationDate":"2022-02-02T10:47:00.000","Title":"Fastapi async sql unique constraint throws Internal Server Error. Instead of returning a error message","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have an apk with buildozer that works fine with test ads on an android device (my phone) in the buildozer.spec file   i have this line:\nandroid.meta_data = com.google.android.gms.ads.APPLICATION_ID=ca-app-pub-3940256099942544~3347511713\nthe app is not published on playstore yet, and i have two types of ads banners and interstitial the question is, do i get two ad units from AdMob one for each type and if so what to do to this android.meta_data line ?.\nOn the buildozer.spec its said that this is a list\n# (list) Android application meta-data to set (key=value format)\nandroid.meta_data = com.google.android.gms.ads.APPLICATION_ID=ca-app-pub-3940256099942544~3347511713\naddionally i have this line:\nandroid.gradle_dependencies = 'com.google.firebase:firebase-ads:10.2.0'\nso m really confused of what to do exactly","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":26,"Q_Id":70964922,"Users Score":0,"Answer":"its simple u go to *android.meta_data = * line and instead of this :\nandroid.meta_data = com.google.android.gms.ads.APPLICATION_ID=ca-app-pub-3940256099942544~3347511713\nu enter this :\nandroid.meta_data = [com.google.android.gms.ads.APPLICATION_ID=ca-app-pub-3940256099942544\/1033173712,com.google.android.gms.ads.APPLICATION_ID=ca-app-pub-3940256099942544\/6300978111]","Q_Score":0,"Tags":"python,android,kivy,admob,buildozer","A_Id":70965143,"CreationDate":"2022-02-03T01:27:00.000","Title":"Ad units for banners and interstitial with buildozer?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I'm dockerizing a Django app and I saw that some people run the migrations in the docker-compose.yml file but some people don't, what is the best solution?\nThanks!!","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":34,"Q_Id":70970325,"Users Score":0,"Answer":"If some people do and some don't, you can expect 50-50 answers :D\nThere are two answers why some people do not include migrate in docker-compose:\n\nThey have them elsewhere (some outside script, that is executed from other command).\nThey don't want things like migrate or runserver start automatically, wchich might be good practise for some cases.","Q_Score":0,"Tags":"python,django,docker","A_Id":70970612,"CreationDate":"2022-02-03T11:15:00.000","Title":"Should django migrations be applied automatically when using docker?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am working on a project the backend is in python Django and frontend in react-js and database is MySQL. Now the problem is I need to search products from database in my project but don\u2019t know how to get query for frontend to backend. I don\u2019t know the code Moreover I am using rest-framework and Axios library to connect. I am very thankful to you if you help me to create search related queries in my project. Thank you","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":97,"Q_Id":70978611,"Users Score":0,"Answer":"You should elaborate more. What is the issue? means \"do you have issue about how to implement search at DB?\" or 'how to send data from frontend to backend and vice-versa'","Q_Score":0,"Tags":"reactjs,python-3.x,django,django-models,django-rest-framework","A_Id":70978772,"CreationDate":"2022-02-03T21:35:00.000","Title":"Django_React_SQL website product searching","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm trying to scrape an HTML element in a webpage. The content of this element are generated by Javascript and thus cannot be scraped by simply running a requests.GET:\nresponse = requests.get(url).\nI read in other posts that Selenium can be used to solve this issue, but it requires an actual browser installed and the use of the corresponding driver. This code is meant to be ran on different machines that frequently change, and so I cannot write it so that it only works if a particular browser is installed.\nIf there is a way to scrape the Javascript content without relying on a particular browser then that is what I'm looking for, no matter the module.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":413,"Q_Id":70990207,"Users Score":3,"Answer":"Aside from automating a browser your other 2 options are as follows:\n\ntry find the backend query that loads the data via javascript. It's not a guarantee that it will exist but open your browser's Developer Tools - Network tab - fetch\/Xhr and then refresh the page, hopefully you'll see requests to a backend api that loads the data you want. If you do find a request click on it and explore the endpoint, headers and possibly the payload that is sent to get the response you are looking for, these can all be recreated in python using requests to that hidden endpoint.\n\nthe other possiblility is that the data hidden in the HTML within a script tag possibly in a json file... Open the Elements tab of your developer tools where you can see the HTML of the page, right click on the  tag and click \"expand recursively\" this will open every tag (it might take a second) and you'll be able to scroll down and search for the data you want. Ignore the regular HTML tags, we know it is loaded by javascript so look through any \"script\" tag. If you do find it then you can hopefully find it in your script with a combination of Beautiful Soup to get the script tag and string slicing to just get out the json.\n\n\nIf neither of those produce results then try requests_html package, and specifically the \"render\" method. It automatically installs a headless browser when you first run the render method in your script.\nWhat site is it, perhaps I can offer more help if I can see it?","Q_Score":1,"Tags":"javascript,python,selenium,web-scraping","A_Id":70990553,"CreationDate":"2022-02-04T17:05:00.000","Title":"Python Scraping JavaScript page without the need of an installed browser","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm using Flask-Babel for a web application.\nIn my Jinja2 templates I can do gettext(\"Number %(number)s\", number=1). However that doesn't seem to work in Python code. when I do so I get the error TypeError: gettext() got an unexpected keyword argument 'number'.\nI have tried different variations like gettext(f'Number {number}') and gettext('Number %s') % (number). But with no luck. I've tried looking in the documentation, but it's rather limited and they suggest my initial method.\nIf anybody could help me out that would be great. Thank you.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":54,"Q_Id":71001141,"Users Score":0,"Answer":"Turns out I was importing gettext from the internal modules, instead of importing it from flask_babel.","Q_Score":0,"Tags":"python,flask,gettext,flask-babel","A_Id":71001943,"CreationDate":"2022-02-05T18:52:00.000","Title":"Flask babel in-line variables","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a Command class that runs an api call to a coin market cap api and writes it into the database that I have rigged up to my django project called cryptographicdatascience. The table that the data is written to is called apis_cmc and is not defined in my models.py.\nMy question is if I am writing straight to a table using sqlalchemy do I need to go in and create a model for the same table in my models.py file?\nIt seems to me that the answer is no but I'm sure there is something I'm overlooking.\nThanks,\nJustin","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":26,"Q_Id":71003121,"Users Score":1,"Answer":"No, there is no need to create table in models.py as it is not a part of a Django ORM.\nBut have in mind, that Django ORM won't know about your table and won't store any data in migration files. It can cause some problems on deploy stage or when you move to other working machine.","Q_Score":0,"Tags":"python,django,sqlalchemy","A_Id":71003174,"CreationDate":"2022-02-05T23:52:00.000","Title":"Do I need to create a model for a table I'm inserting through sqlalchemy in django?","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a project (django) running in our office in server. There are some people who have access in server. But I want to do something so that other people (who have access in server) can not read, or write, or edit, or do anything in my project (django)'s source code.\nServer is running using Ubuntu OS.","AnswerCount":2,"Available Count":1,"Score":0.0996679946,"is_accepted":false,"ViewCount":85,"Q_Id":71018851,"Users Score":1,"Answer":"The trick with permissions will help restrict access to non-privileged users, but the administrator with su can read anything.\nSo the administrator could read your config, keys, any other credentials or make a backup from PostgreSQL or another database and read data under Django's user credentials that could be found in your config.\nYou can install your app in the cloud in your infrastructure and if you need to make calls in your internal infrastructure there are a lot of technics - from ssh tunnel to writing a simple proxy app.","Q_Score":1,"Tags":"python,django,linux,security,encryption","A_Id":71019157,"CreationDate":"2022-02-07T12:48:00.000","Title":"Encrypt Django project","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"How do we determine if a website uses an API or not? For ex. If I want to scrap a data from particular website to create a Database, should I check that whether that website allows me to scrap data or does that website allow API? How can I check it?","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":27,"Q_Id":71019392,"Users Score":1,"Answer":"The website owner's wishes should be put in a file called robots.txt. If you use a scraping framework like scrapy, reading and respecting this file is typically built into the framework. If not, you must parse and respect this file manually, which can be some work. Alternatively, read it manually, if you're just scraping a handful of sites.\nAs an example, check out [https:\/\/stackoverflow.com\/robots.txt](stackoverflow's robots.txt file).","Q_Score":0,"Tags":"python,web-scraping","A_Id":71019613,"CreationDate":"2022-02-07T13:29:00.000","Title":"How do we determine if a website uses an API or not?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to fetch all the issues which are currently in 'IN PROGRESS' status and previously in 'OPEN'status.\nBy using the following code I would get all the issues that are currently in 'IN PROGRESS' status and the issues that are passed through 'OPEN' status once in its transition state.\neg: issues = jira.search_issues(PROJECT=XYZ AND (status in ('IN PROGRESS')) AND (status WAS in ('OPEN')))\nBut how can I get the issues which are currently in the 'IN PROGRESS' status and previously in 'OPEN' status in JIRA using Jira-Python?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":42,"Q_Id":71019646,"Users Score":0,"Answer":"You can run a search using Jira Python. Use the same search you showed us","Q_Score":0,"Tags":"python,jira,python-jira","A_Id":71022758,"CreationDate":"2022-02-07T13:48:00.000","Title":"How to fetch previous status of an issue in JIRA using Python-Jira?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am new to azure stack, so my please bear with my question.\nI have a synapse database and I have a powerapp that reads data from synapse database. So, powerapps cannot writeback to synapse database. So I am thinking of developing a azure function with https trigger and integrate with the powerapp button on click functionality. So, my question is CAN AZURE FUNCTION WRITE BACK TO SYNAPSE DATABASE?\nPS: I have tried the same with logic apps, with new row in sql trigger, and it didn't work.\nAny help would be appreciated?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":91,"Q_Id":71020005,"Users Score":0,"Answer":"if you have a library for connecting to the synapse database that does not need to be installed but can be loaded in your application then yes Function Apps can write to the synapse DB as long as the connectivity is there","Q_Score":1,"Tags":"python-3.x,azure,azure-functions,powerapps-canvas","A_Id":71023899,"CreationDate":"2022-02-07T14:12:00.000","Title":"Can a Azure function write back data to synapse database","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a scrapy spider that scrapes products information from amazon based on the product link.\nI want to deploy this project with streamlit and take the product link as web input, and product information as output data on the web.\nI don't know alot about deployment, so anyone can help me with that.","AnswerCount":2,"Available Count":1,"Score":0.0996679946,"is_accepted":false,"ViewCount":89,"Q_Id":71022331,"Users Score":1,"Answer":"You can create a public repository on GitHub with streamlit and connect your account with 0auth. Then you can deploy it on the streamlit servers after signing in the streamlit website.","Q_Score":3,"Tags":"python,web-scraping,scrapy,streamlit","A_Id":71022799,"CreationDate":"2022-02-07T16:56:00.000","Title":"Deploy Scrapy Project with Streamlit","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I just setup ubuntu deep learning instance on AWS and would like to run my existing jupyter notebook there. Im working on creating CNN model on new images dataset.\nIm stuck at reading my huge image files on my local drive from this remote server.\nHow can i read the files\/folders on my local drive via this jupyter notebook on the instance?\nIs there other solution than uploading the dataset?","AnswerCount":1,"Available Count":1,"Score":0.3799489623,"is_accepted":false,"ViewCount":96,"Q_Id":71041103,"Users Score":2,"Answer":"Im not familiar yet with awscli, instead i transfer my dataset to the instance using winSCP. So far, it worked well. But i do appreciate for any advice, suggestion for any other methods that can be used besides winscp.","Q_Score":1,"Tags":"python,amazon-ec2,jupyter-notebook,remote-server","A_Id":71063874,"CreationDate":"2022-02-08T21:26:00.000","Title":"Accessing local files via jupyter notebook on remote AWS server","Data Science and Machine Learning":1,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"Currently I have prepared a Custom NER model where I can extract 15 entities. I have trained my model on single annotated file using config.cfg file by spacy3. Now I want to train my model again on 100 annotated files. How can I pass these annotated files?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":96,"Q_Id":71049375,"Users Score":0,"Answer":"If you put .spacy files in a directory and specify the directory as your train\/dev corpus spaCy will automatically load all the files.","Q_Score":1,"Tags":"python,nlp,named-entity-recognition,entities,spacy-3","A_Id":71060105,"CreationDate":"2022-02-09T12:11:00.000","Title":"How can I feed multiple of 100 annotated files in training Custom NER model using spacy3","Data Science and Machine Learning":1,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to create a Django web app with two types of users, Students and Staff. The problem is Students must login with their full name and id number (where name is non-unique, and id number operates as password), but I do not believe there is a way for Django to allow name to be non-unique (USERNAME_FIELD constant must be unique). Staff have a different login, they can login with regular username and password (username must be unique). Also, because there are two types of users, I do not know what to put for the AUTH_USER_MODEL constant in settings.py, since there can only be one model for this. What is the best way to set up the app without running into these problems?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":43,"Q_Id":71059624,"Users Score":0,"Answer":"If I understood your question properly, you want to keep the usernames of students \"non-unique\" and you want to differentiate them with unique passwords (Id number).\nDjango doesn't allow this because it is not a good practice. Why don't you consider keeping \"Id number\" and \"name\" as a password (which is again not a good practice to keep \"name\" as a password but will work in Django)?\nOtherwise, if you want to do what you are trying to do, then you can code your own method for authentication instead of using Django's inbuilt method. This may not be that secure but I think your approach itself is not secure so this might work for you.","Q_Score":0,"Tags":"python,django","A_Id":71059698,"CreationDate":"2022-02-10T03:56:00.000","Title":"Site with different authentication for site students and staff in Django?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am using a library django-upgrade to convert the code from django 1.11 to django 3.24\nthe command is like\n\ndjango-upgrade --target-version 3.2 example\/core\/models.py\n\nI want to know that how can I run this command so that it runs on whole django project.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":24,"Q_Id":71060918,"Users Score":0,"Answer":"I am clear on the question but if you are asking how to upgrade Django then in your virtual environment run pip sudo pip install --upgrade django==3.2","Q_Score":0,"Tags":"python,django","A_Id":71063490,"CreationDate":"2022-02-10T06:56:00.000","Title":"how to run a django-upgrade command to whole django project?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I would like to know if it's possible to create a dropdown datetime field for the DateTimeField in WTForms, the way  renders in HTML.\nA dropdown menu is much more user friendly than the default in WTForms where a user has to type in the date and time in the exact correct format.\nAnd if it's not possible using only WTForms then how would I be able to implement the raw HTML into a WTForm as I would still like to use the security CSRF token that is provided by WTForms.\nThanks in advance!","AnswerCount":2,"Available Count":1,"Score":0.0996679946,"is_accepted":false,"ViewCount":146,"Q_Id":71071472,"Users Score":1,"Answer":"Ok after being forced to read the WTForms documentation because nobody immediately answered my question I now understand that it can be manipulated to do anything HTML can do by passing in HTML keyword arguments like so:\n{{ form.when.label }}<br>\n{{ form.when(type='datetime-local') }}","Q_Score":2,"Tags":"python,flask,flask-wtforms,wtforms","A_Id":71076760,"CreationDate":"2022-02-10T19:53:00.000","Title":"WTForms equivalent to","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm confused about organising files and media. Let say, I have a Django website, it has over 25 models, all of them contains at least one image field. Every submitted entry in the database, create 5-6 different versions of that image by size and format. Currently, I just have a DIR for each model inside the media root which store all uploaded image related to that specific model. What is the best way to organise them in terms of loading speed. If any model or models, let say have 10,000s of entries means 50,000 to 60,000 of images as well. And when someone visits the website does it affect the speed because it is looking through so many images and putting that specifics on the user requested page? Or it doesn't matter at all?\nBest way, I can keep them without putting any affecting the loading speed?:\n\nStoring all images in one dir of that model (MEDIA > MODEL DIR > All Images), because it doesn't matter.\n\nMEDIA > MODEL DIR > SIZES\/FORMAT DIR (e.g. 200x200 or png) > All entries' images that are 200x200 in size, can have thousands of images.\n\nStoring every single entry's images in a separate folder (MEDIA > MODEL DIR > ID\/ENTRY NAME DIR > All images including different sizes and format, this would make 15-20 images per DIR).\n\n(MEDIA > MODEL DIR > ID\/ENTRY NAME DIR > SIZE\/FORMAT DIR > All images of that size or format related to that entry, this would make 1 or 2 images per DIR).\n\nor date\/month\/year wise directories? But I'm not really a fan of this one.\n\n\nAlso, in general what's the best way if the website is not on django?\nThanks!","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":11,"Q_Id":71071867,"Users Score":0,"Answer":"I have this problem and I use object storage with CDN.\nIt can be so helpful if you use this solution.","Q_Score":0,"Tags":"python,django,image,directory-structure","A_Id":71072008,"CreationDate":"2022-02-10T20:28:00.000","Title":"Uploaded images organisation (DIR Structure) in django or any without affecting the web app speed or load time?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I believe this question already shows that I am new to docker and alembic. I am building a flask+sqlalchemy app using docker and postgres. So far I am not using alembic, but I am about to plug it in and some questions came up. I will have to create a pg_trgm extension and also populate one of the tables with data I already have. Until now I have only created brand new databases using sqlalchemy for the tests. So here is what I am thinking\/doing:\n\nTo create the extension I could simple add a volume to the postgres docker service like: .\/pg_dump.sql:\/docker-entrypoint-initdb.d\/pg_dump.sql. The extension does not depend on any specific db, so a simple \"CREATE EXTENSION IF NOT EXISTS pg_trgm WITH SCHEMA public;\" would do it, right?\n\nIf I use the same strategy to populate the tables I need a pg_dump.sql that creates the complete db and tables. To accomplish that I first created the brand new database on sqlalchemy, then I used a script to populate the tables with data I have on a json file. I then generated the complete pg_dump.sql and now I can place this complete .sql file on the docker service volume and when I run my docker-compose the postgres container will have the dabatase ready to go.\n\nNow I am starting with alembic and I am thinking I could just keep the pg_dump.sql to create the extensions, and have a alembic migration script to populate the empty tables (dropping the item 2 above).\n\n\nWhich way is the better way? 2, 3 or none of them? tks","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":304,"Q_Id":71079732,"Users Score":0,"Answer":"Create the extension in a \/docker-entrypoint-initdb.d script (1).  Load the data using your application's migration system (3).\nMechanically, one good reason to do this is that the database init scripts only run the very first time you create a database container on a given storage.  If you add a column to a table and need to run migrations, the init-script sequence requires you to completely throw away and recreate the database.\nPhilosophically, I'd give you the same answer whether you were using Docker or something else.  You could imagine running a database on a dedicated server, or using a cloud-hosted database.  You'd have to ask your database administrator to install the extension for you, but they'd generally expect to give you credentials to an empty database and have you load the data yourself; or in a cloud setup you could imagine checking a \"install this extension\" checkbox in their console but there wouldn't be a way to load the data without connecting to the database remotely.\nSo, a migration system will work anywhere you have access to the database, and will allow incremental changes to the schema.  The init script setup is Docker-specific and requires deleting the database to make any change.","Q_Score":0,"Tags":"python,docker,sqlalchemy,alembic","A_Id":71079959,"CreationDate":"2022-02-11T11:58:00.000","Title":"Use alembic migration or docker volumes to populate docker postgres database?","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"Whenever I enter pipenv install django in the cmd an error appears:\n\" 'pipenv' is not recognized as an internal or external command,\noperable program or batch file. \"\nI can run:\npip install pipenv\nand:\npip install django","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":119,"Q_Id":71103384,"Users Score":0,"Answer":"Checking \"add python to PATH\" when installing Python will only work for Python and pip commands. However, while installing \"pipenv\" using \"pip install pipenv\" command, pipenv will be installed but it might not be added to the PATH environment variables and you have to do it manually. Doing this, most probably the error \"pipenv is not recognized...\" will disappear. I solved this issue when I realized pipenv is not added to the environment variables.","Q_Score":0,"Tags":"python,pip,pipenv","A_Id":71926630,"CreationDate":"2022-02-13T17:52:00.000","Title":"I can't run pipenv install django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":1,"Web Development":1},{"Question":"Whenever I enter pipenv install django in the cmd an error appears:\n\" 'pipenv' is not recognized as an internal or external command,\noperable program or batch file. \"\nI can run:\npip install pipenv\nand:\npip install django","AnswerCount":2,"Available Count":2,"Score":1.2,"is_accepted":true,"ViewCount":119,"Q_Id":71103384,"Users Score":0,"Answer":"I solved it by re-installing python then checked the check box called \" add python to PATH \" and it worked perfect with no errors","Q_Score":0,"Tags":"python,pip,pipenv","A_Id":71110405,"CreationDate":"2022-02-13T17:52:00.000","Title":"I can't run pipenv install django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":1,"Web Development":1},{"Question":"I want to add cc emails in odoo-13 (want cc been sent to the direct manager of employee and the HR)\nI found related settings in odoo interface\\settings\\technical\\templates but I am not sure if I have to add cc emails here or in code.\ncan anyone help?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":25,"Q_Id":71108489,"Users Score":0,"Answer":"Odoo mail.template records are responsible for generated mails from Odoo, located in settings\\technical\\templates, where you can define values like subject, body, from address, to address, CC etc. However those values can be dynamic or static based on the values that set on template, if you need dynamic CC (different for two different sale, for example), you will have to set it dynamically but if you need fixed CC mail address, you can just set that static value on CC field (for example test@example.com). You don't need to add CC address to python code. An example of dynamic mail address can be ${object.user_id.email_formatted} where it will be different for different user sending the email.","Q_Score":0,"Tags":"python,odoo,odoo-8,odoo-10,odoo-13","A_Id":71117563,"CreationDate":"2022-02-14T07:41:00.000","Title":"send multiple cc email in odoo to specific group","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am using the following versions as of now\n\nDjango Rest Framework is 3.12.4\nPython version is 3.9\nDjango version is 3.2.3\nPostgreSQL 13.5\n\nIs postgres 14 compatible with the above versions? I need to upgrade postgres to 14.\n[Edit] Sorry had to remove the link to avoid confusion\nthanks!","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":254,"Q_Id":71129744,"Users Score":0,"Answer":"I checked and Postgress 14.2 is compatible with the following\n\nDjango Rest Framework 3.12.4\nPython version 3.9\nDjango version 3.2.3\nPsycopg 2.8.6","Q_Score":1,"Tags":"python,django,postgresql,amazon-web-services,django-rest-framework","A_Id":71327489,"CreationDate":"2022-02-15T16:11:00.000","Title":"Is postgres 14 compatible with Django3.2.3 and Django framework 3.12.4?","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am using h2o autoML on python.\nI used the autoML part to find the best model possible: it is a StackedEnsemble.\nNow I would like to take the model and retrain it on a bigger dataset (which was not possible before because I would explode the google colab free RAM capacity).\nBut AutoML does some preprocessing to my data and I don't know which one.\nHow can I get the preprocessing steps to re-apply it to my bigger data before feeding it to the model ?\nThanks in advance,\nGab","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":53,"Q_Id":71138526,"Users Score":0,"Answer":"Stacked Ensemble is a model that is based on outputs of other models. To re-train the SE model you will need to re-train the individual models.\nApart from that AutoML will not pre-process the data. It delegates the pre-processing to downstream models. There is one exception - target encoding.\nDid you enable TE in AutoML?","Q_Score":0,"Tags":"python,google-colaboratory,h2o,automl,data-preprocessing","A_Id":71150782,"CreationDate":"2022-02-16T08:38:00.000","Title":"h2o AutoML - retrain stacked ensemble from autoML - preprocessing the data","Data Science and Machine Learning":1,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm currently trying to read from one Kafka topic, doing some transformation and producing the messages to another topic.\nHowever, i am having a lot of issues with the Consumer. First of all, if we set reasonable session timeout\/max poll records values (like 10 s), the consumer takes super long, constantly rebalances and sometimes sends duplicated messages. If we increase the params to crazy values like 30 min, the speed increases dramatically. But the problem is once it reaches the 30 min mark, it rebalances and takes around 30 min to start up again.\nI have been playing with a lot of different params but still lost on how to fix this. Any ideas? Thanks","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":58,"Q_Id":71171812,"Users Score":0,"Answer":"This may be due to some configuration issues. Based on your question I would suggest to please check your auto commit property.\nBecause ideally kafka does rebalance if it does not recieve the acknowledgement of the message read before session timeout happens. If it is set as false then either set it to true or make sure to commit to kafka once you are done processing the message","Q_Score":0,"Tags":"python,apache-kafka,kafka-consumer-api","A_Id":71180171,"CreationDate":"2022-02-18T10:18:00.000","Title":"Kafka consumer speed increases with session timeout\/max poll records","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I've done a Python program that reads data from GCP, GKE etc, compile some of them in a spreadsheet and replace placeholder text in a slide for reporting purposes.\nI have several functions that call the slide replacing text function (that use the replaceAllText method of the slide API). It's currently making around 70 calls of that function, and so, 70 requests.\nI know that I can use the batch.add() method to make fewer requests but here is my problem. The replacing function is called a lot so I tried to use a global variable for my batch object definition : batch_slide = SLIDE_SERVICE.new_batch_http_request()\nIn the replacing function I used the keyword global in front of the variable. In the main function I execute the batch when I need it to but now the result in the slide is chaotic.\nWhen I used one request per replacement, everything was perfect, every field replaced correctly, but now with one batch, it's not. It seems random as I run it multiple times and the replaced field changed every time.\nI put wait times after the execution to maybe ive it time to replace before doing other stuff but doesn't seems to fix it. I didn't find yet how to inspect my batch_slide object, it's not iterable.\nAny help is appreciated, ask for more details if needed.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":21,"Q_Id":71172115,"Users Score":0,"Answer":"So for anyone wanting to do something similar here is how I did it.\nI used a global variable on the request instead of the batch object, and when needed calling a batch execute with the big request.\nThe request will maybe take a bit more time to process but you only make one this way so no risks of timeouts. Just stacks the request list.","Q_Score":0,"Tags":"python,google-api,google-slides-api","A_Id":71555659,"CreationDate":"2022-02-18T10:42:00.000","Title":"Google SLIDE API global batch.add request Python","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Working on a masters project and a fellow course mate has developed a web application using Django on a windows computer and has sent the file to us. I am trying to run the server on my MacBook terminal but when I run it, get the error \"ModuleNotFoundError: No module named '_overlapped'. I have installed trollius as recommended in a previous post but hasn't worked for me. any help?","AnswerCount":1,"Available Count":1,"Score":0.761594156,"is_accepted":false,"ViewCount":3049,"Q_Id":71175035,"Users Score":5,"Answer":"I got this error when I wanted NULL as default for my Model's field, so Visual Studio Code added automatically on the first line from asyncio.windows_events import NULL, I saw that the traceback were pointing \n\nFile \"\/Library\/Frameworks\/Python.framework\/Versions\/3.9\/lib\/python3.9\/asyncio\/windows_events.py\", line 3, in <module>\nimport _overlapped\n\n\nSo I just deleted from asyncio.windows_events import NULL, then the error was gone.","Q_Score":1,"Tags":"python,django,terminal","A_Id":71462787,"CreationDate":"2022-02-18T14:23:00.000","Title":"No module named '_overlapped'","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a mssql schema with the django ORM \/ pymssql extension. I have some classes build via the inspectdb function. A lot of the Primarykeys in the tables are UUID fields \/ mssql uniqueidentifier, which the ORM inspected as CharFields with length 36.\nI am concerned now with possible duplicates for the primary keys since the tables are growing very fast.\nThe tables have a default constraint for any new primary key on the database site. So basically I have two (different) sources of UUID generation (the database server and the application server)\nHow is it possible to insert via the ORM from django performantly?\nAm I save with generating the UUIDs via pythons uuid module or do I have to ask the database everytime for a new UUID before creating a object with django?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":40,"Q_Id":71209850,"Users Score":0,"Answer":"The primary key cannot be duplicated, so it will raise a \"duplicated pk duplicated\" exception. In addition, the odds of getting a duplicated uuid is quite close to 0, you will get 3 lottery prizes before you get a duplicated uuid.","Q_Score":0,"Tags":"python,sql-server,django","A_Id":71209956,"CreationDate":"2022-02-21T16:35:00.000","Title":"UUIDs with django and mssql","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a script that I run locally on my laptop, which polls a server and if certain criteria are met, it sends an email. I guess like a heartbeat app of sorts.\nThe server is a Raspberry Pi, it has a public IP address which is all working fine.\nId like to host the python script on Heroku, so that it can run without my laptop having to be on the local network or always running.\nDoes anyone have experience of Heroku to show me how I can have the script hosted and running constantly?\nMy other query is that free tiers of Heroku go to sleep after 30 mins, so would essentially stop the script until getting an http request and spin up the instance once again.\nTrying to find some form of elegant solution.\nMany thanks for any advice you can give,\nAll the best,\nSimon","AnswerCount":2,"Available Count":1,"Score":0.0996679946,"is_accepted":false,"ViewCount":28,"Q_Id":71214164,"Users Score":1,"Answer":"Different approachs would be:\n1- Cloud Functions\n\nCreate lambda function in a cloud provider with your python code (free tier elegible)\nTrigger that function every once in a while\n\n2- Get VM on Cloud\n\nGo to AWS, GCP, etc\nGet a free tier VM\nRun server from there","Q_Score":0,"Tags":"python,heroku","A_Id":71214221,"CreationDate":"2022-02-21T23:21:00.000","Title":"Heroku - Python integration","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"If I create a variable file (var.py) and start my robot test:\n\nrobot --variablefile var.py[:set1] .\\test_this.robot\n\nHow can I use this variables in my other file (settings.py) what is called from Robot Framework test?\nThe goal is to start test and enter the environment I want to use (get from var.py file) and use that selection in settings.py\nDo I need to pass the selection with parameter when calling settings.py file or can I use\/read the var.py file directly from settings.py?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":116,"Q_Id":71217198,"Users Score":0,"Answer":"I solved this by using this in .robot\nRun Keyword If   '${VAR}' == 'a'   Import Variables   ${CURDIR}\/var_a.py\nAnd this in .py\nBuiltIn().get_variable_value('${DBHOST}')","Q_Score":0,"Tags":"python,robotframework","A_Id":71231831,"CreationDate":"2022-02-22T07:09:00.000","Title":"Variable file usage with Robot Framework and Python","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm trying to make the switch from AWS Lambda warmup (calling the function every 5 minutes) to provisioned concurrency as I was told it's a better way to avoid cold starts.\nNevertheless, when using provisioned concurrency, my script is going through all packages imports, which makes the latency quite important. For the same lambda function in two different environments, one using warmup and one using provisioned concurrency, the one using warmup executes in less than 1s when the other one takes almost a minute.\nAll of my imports are of course outside of the function handler, and the provisioned concurrency seems to be correctly enabled for my Lambda. To enable it I just added this line in my .yml file:\nprovisionedConcurrency: 3\nAm I missing something or provisioned concurrency is not handling libraries imports when creating containers?","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":174,"Q_Id":71226694,"Users Score":1,"Answer":"How is the lambda invoked?\nprovisioned concurrency is set on lambda alias\/version (can't be set on $LATEST). In serverless framework, provisionedConcurrency: 3 will configure provisioned concurrency on lambda alias \"provisioned\" (this is the default and can't be cahnged), with 3 instances.\nSo whoever calling your lambda (api gateway \/ other lambda \/ sqs \/ sns \/ etc) need to invoke the alias instance.\nIf you are not invoking the alias version, you are just invoking $LATEST which is not provisioned...\nInvoke the alias by attaching it to end of function arn: rn:aws:lambda:us-west-2:123456789012:function:my-function:provisioned or by adding qualifier parameter in relevant field","Q_Score":1,"Tags":"python,aws-lambda","A_Id":71228446,"CreationDate":"2022-02-22T18:40:00.000","Title":"AWS Lambda provisioned concurrency still results in cold start","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I devlopped a flask app in which I use pandas.\nWhen I start the python environment using\nSource myenv\/bin\/activate\nAnd run.py\n=> everything is ok and the app run normally\nBut when I try to deploy the app using mod_wsgi it crushes with this importing pandas error\nPandas\/init.py line 13\nMissing_dependencies.append(f\"{dependency}:{e}\")\nAm I missing something ?\nI use the standard mod_wsgi config that is working for with another app that doesn't use pandas\nThanks","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":8,"Q_Id":71237451,"Users Score":0,"Answer":"I found a solution for my problem:\nIt was due to python 2 used to compile mod_wsgi\nI changed that to python 3\nNow everything is working fine","Q_Score":0,"Tags":"python-3.x,pandas,flask,mod-wsgi","A_Id":71264954,"CreationDate":"2022-02-23T13:02:00.000","Title":"Issue with import pandas error using mod_wsgi","Data Science and Machine Learning":1,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have been learning Django and React for some time now. As part of my learning, I've decided to work on building my own store so I don't use Shopper anymore.\nCan you recommend any ready-made ecommerce framework where I can add React as frontend?","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":166,"Q_Id":71239798,"Users Score":0,"Answer":"> Best frontend framworks for ecommerce\nREACT AKA React.js & ReactJS (React on GiftHub; React on StackOverflow):\nReact is used to build user interfaces and UI components. It will render data only to DOM, so additional libraries need to be used for routing and state management.\nAdvantages:\nTime-saving: individual React components can be re-used any time without any impact on system.\nSmooth system operation for user & developer: virtual DOMs help updates to go seamlessly.\nExtensive recourses: open-source community keeps creating tools, libraries, guides.\nDisadvantages:\nSteep learning curve: it does take longer to master it than Angular or Vue; not a one-day-exercise.\nVUE.JS [Vue JS on GiHub]:\nWith 7,7 million monthly downloads, Vue.js is a rising star among JavaScript frameworks for building user interfaces. It\u2019s hugely popular with Chinese developers to the extent that some of the material & forum discussions are only available in Chinese.\nAdvantages:\nSmall-sized: Vue framework is quick to download, great for SEO and UX.\nUser-friendly & easy to learn: extremely agile and straightforward, Vue is favored by developers due to its simplicity.\nExhaustive documentation: Vue.js docs are concise and well-structured.\nBrowser extensions help you to work with different individual components.\nDisadvantages:\nYoung community: not as mature as other veterans of the framework offers, this community is still growing.\nFlexibility-paralysis: too much flexibility within one team may lead to contradictory approaches that cancel each other out.\nANGULAR:\nThis popular open-source Google-created JavaScript-based framework employs MVC architecture for single web page applications.\nAdvantages:\nLess coding time: data models take less time to write and there\u2019s no need to modify controllers, but use filters instead.\nTwo-way data binding: the framework provides a seamless projection of models that saves developers' efforts.\nTesting: the testing function is significantly simplified and is designed to be a nearly inherent function.\nGreat MVC\nDisadvantages:\nSecurity: the absence of server authorization and authentication leads to security issues.\nMemory leakage: potential memory leakage that leads to slowdowns and crashes.","Q_Score":0,"Tags":"python,django,e-commerce","A_Id":71240024,"CreationDate":"2022-02-23T15:30:00.000","Title":"Django + React as ecommerce shop","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am receiving below error in Azure synapse Pyspark notebook\nTypeError: AutoMLConfig() takes no arguments\nwhile running below code:\nautoml_settings = {\n\"primary_metric\": 'r2_score',\n\"enable_early_stopping\": True,\n\"experiment_timeout_hours\": 0.5,\n\"max_cores_per_iteration\": 1,\n\"max_concurrent_iterations\": 2,\n\"enforce_time_on_windows\": True,\n\"exclude_nan_labels\": True,\n\"enable_tf\": False,\n\"verbosity\": 20\n}\nautoml_config = AutoMLConfig(\"task\": 'regression',\n\"label_column_name\": label,\n\"compute_target\": compute_target,\n\"featurization\": 'auto',\n\"training_data\": train_data\n**automl_settings)","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":92,"Q_Id":71239957,"Users Score":0,"Answer":"You're using the wrong version of Apache spark pool. If you change to a pool with version 2.4, then it should fix your problem.","Q_Score":0,"Tags":"python,azure,azure-synapse,automl","A_Id":72192750,"CreationDate":"2022-02-23T15:41:00.000","Title":"TypeError: AutoMLConfig() takes no arguments in Azure Synapse","Data Science and Machine Learning":1,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have data that does not need stored in a db. I have a list of results from an API that is made up of objects i created based off of what is returned by the api. I want to display results in an html table. When I paginate i lose all that data and want to pass the list of objects into the session to pass with each page. Is this possible?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":27,"Q_Id":71252405,"Users Score":0,"Answer":"You can store anything which can be serialized in the session. It's possible that you will have to restructure your \"objects\" or store the same data as dicts and lists.\nTry it and see?","Q_Score":0,"Tags":"python,django,session","A_Id":71253207,"CreationDate":"2022-02-24T13:01:00.000","Title":"Can I pass a list of objects into a session? Django\/Python","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a folder that contains several images, I would then like to display the list of images that have the same name and number (eg: myfile_page1.png, myfile_page2.png, myfile_page2.png,) and then display them in the django template show_file.html","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":14,"Q_Id":71252726,"Users Score":0,"Answer":"You can store file names and paths in databases such sqlite3 or Postgres and then using SQL filter the files path and name you want to fetch. This way you can both show files with similar names and render them accordingly.","Q_Score":0,"Tags":"python,django,django-models,django-templates","A_Id":71254076,"CreationDate":"2022-02-24T13:26:00.000","Title":"how can i manipulate several images in a directory and display them conditionally with django?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am making a website, and i want to add an extension for it, like users.example.com. I have searched a lot and came up with nothing. Would I have to create a whole new website, or is there something else that I could do?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":32,"Q_Id":71258566,"Users Score":0,"Answer":"It is not a part of Django. You should define it in nginx configuration for your sub domain names and its routing.","Q_Score":0,"Tags":"python,django","A_Id":71261569,"CreationDate":"2022-02-24T21:37:00.000","Title":"How to make domain extension in Django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have very little experience in manipulating pdfs using python, and my experience is restricted only to reading using 'pdfreader' a python library. I have a pdf, (which in this case is a past exam paper), I want it to split a page when it encounters a question number, let's say 12 for this example (it would be formatted \"12.\"), and save the split part containing the number 12. in a new pdf. How do I do this?\nI'm not a very good programmer so sorry if my question is stupid, but searching on the internet I could not find how to do this.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":43,"Q_Id":71268927,"Users Score":0,"Answer":"The solution at the end was to transform the pdf page into an image, crop it where I want it, then back to a pdf. To get the coordinates I had to use pdf miner, to then get the pixels to modify the image I had to make a proportion between the height of the page in pdf coordinates and the height of the image I wanted to create in pixels, so then I could transform the coordinates of one into the coordinates of the other.","Q_Score":0,"Tags":"python,python-3.x,pdf,pdf-generation,crop","A_Id":71423984,"CreationDate":"2022-02-25T16:35:00.000","Title":"How do I get a specific part of a page in a pdf and save it to a new pdf in python?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am developing a Python application to automate my tasks, I would like to have two separate environments, development and production, and in the future maybe a Web app environment or a CLI tool environment.\nThe development phase for example has modules for unit testing and API keys that I don't want to be shipped to production. Is it possible to have a package.json equivalent that can help me?\nI also want to define the entry file that has to be executed first, which is main.py for my project, can this be achieved?","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":121,"Q_Id":71275132,"Users Score":1,"Answer":"For package.json equivalents: You can define different requirements.txt files for development and production. For example, requirements.prod.txt and requirements.dev.txt. Inside the dev requirements, you can actually define the prod requirements by placing -r requirements.prod.txt inside the requirements.dev.txt. This way, development requirements will include all the production packages, plus something else for e.g. testing purposes.\nFor API keys: I would create a .ini file for production and development and take care of only shipping the production version to production. In the code, you can primarily read the development .ini file, and only use the production one if development version does not exist. This way it is easier for the prod.ini and dev.ini config files to coexist in the project folder. When there is no dev.ini in production, prod.ini will be used.\nYou can define the entry point in your script by running python main.py, please elaborate what you meant with this.\nIf you need more info, please comment so I can modify my answer.","Q_Score":1,"Tags":"python,unit-testing,devops,cicd","A_Id":71275223,"CreationDate":"2022-02-26T08:27:00.000","Title":"How to separate development and production in python","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"Suppose, I have sent a post request from react to Django rest API and that request is time taking. I want to get how many percentages it has been processed and send to the frontend without sending the real response?","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":58,"Q_Id":71294020,"Users Score":1,"Answer":"There are two broad ways to approach this.\n\n(which I would recommend to start with): Break the request up. The initial request doesn't start the work, it sends a message to an async task queue (such as Celery) to do the work. The response to the initial request is the ID of the Celery task that was spawned. The frontend now can use that request ID to poll the backend periodically to check if the task is finished and grab the results when they are ready.\n\nWebsockets, wherein the connection to the backend is kept open across many requests, and either side can initiate sending data. I wouldn't recommend this to start with, since its not really how Django is built, but with a higher level of investment it will give an even smoother experience.","Q_Score":0,"Tags":"python,django,api,django-rest-framework","A_Id":71294294,"CreationDate":"2022-02-28T11:02:00.000","Title":"How to send partial status of request to frontend by django python?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to upload the next json file to S3:\n{\"Project\":\"Project1\",    \"Number_test_case\":{ \"Test1\":\"Yes\",\"Test2\":\"No\",\"Test3\":\"Yes\"},    \"Execution_time\":\"date_time\"}\nNormally, the date_time is going to have the next format :28022022_1100 means 28\/02\/2022 at 11 am\nI want to use this parameter to trigger a Lambda function is it possible via creating a rule ?\nor shall I modify the event paramter that I pass to my lambda handler ?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":140,"Q_Id":71295961,"Users Score":2,"Answer":"I want to use this parameter to trigger a Lambda function\n\nThat's not possible. S3 will always trigger the Lambda function immediately, as soon as the object is created in S3. You can't use the contents of the object to control that in any way. There is also no built-in way to delay the triggering of the Lambda function. You would have to write something, like another Lambda function, that takes the initial S3 object, reads the contents, and then perhaps creates an scheduled event to trigger the other Lambda function at the given time.","Q_Score":0,"Tags":"python,aws-lambda,eventtrigger","A_Id":71299021,"CreationDate":"2022-02-28T13:45:00.000","Title":"Trigger AWS lambda function using input parameter from json file uploaded to S3","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"For my college project, I'm developing an application that analyzes\/detects anomalies in videos.\nThe backend is Python and the frontend is JS\/NodeJS. I setup the backend so it runs 4 ML models and writes the outputs to 4 separate .txt files. I created a JS file that reads the .txt files and reformats the data to be saved as 4 .json files. Currently, the frontend just reads the .json files and displays the data... I run npm start to display the application in the browser at localhost:3000. Here is my problem:\nIn the application, the user can upload a .mp4 file and watch the video (react-player). I think I can setup a button interaction to execute a script that runs the backend .py file. However, I don't know how to continue from there. I need to exchange data twice: First, I need to download the video to the .py file local directory as input to the ML models. Once the models have finished running, I need to\ntransfer the outputs (Python list or .json format... I know how to do either) back to the application so it can be displayed to the user.\nI'm reading online that I can execute data transfer using jquery and\/or ajax calls? Or maybe I setup a database? I have 0 experience w\/ any of that so I'd like advice on the easiest approach. If you can recommend resources that can help me learn more on the topic, that'd also be helpful.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":46,"Q_Id":71314500,"Users Score":0,"Answer":"You can use WebSocket to transfer the files, initially after sending the video to the backend there would be quite a bit of delay for the ML model to process it and come up with the output JSON files, WebSocket would make it easier to make this communication.\n(I'm not saying it's not possible to use a rest API to do the same, but it would be easier to use WebSockets)","Q_Score":0,"Tags":"javascript,python,node.js,reactjs","A_Id":71342959,"CreationDate":"2022-03-01T20:49:00.000","Title":"Transferring data through localhost?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Is it necessary to create the notebook in amazon sagemaker and then bring the model file and deploy, if i have amazon sagamaker access, can i deploy my model from my local jupyter notebook into amazon sagemaker directly?\nOr is it compulsory to use amazon sagemaker jupyter notebooks for the deplopyment.\nI tried deploying the model from local jupyter notebook, predictor works\n\npredictor = model.deploy()\npredictor.predict(test_data) works and give predictions\n\nbut When i am listing the objects in the bucket from local, no directory for that deployment is created in aws,\nbut when am doing that in aws sagemaker notebook instance it shows the model being deployed and directory got created.\nKindly help please..","AnswerCount":1,"Available Count":1,"Score":0.3799489623,"is_accepted":false,"ViewCount":144,"Q_Id":71350429,"Users Score":2,"Answer":"Yes you are correct you do not need a SageMaker Notebook Instance to deploy your model onto a SageMaker Endpoint or make use of the SageMaker Python SDK. As long as you have the SageMaker Python SDK installed and internet access, you can make use of your local Jupyter Notebook.\nI am not sure exactly what you mean by \"when i am listing the objects in the bucket from local, no directory for that deployment is created in aws\".\nWhat files are you expecting to be uploaded to S3?\nIn order for the Endpoint to host your model, it needs to be in S3. If you navigate to the SageMaker Console > Inference > Endpoints (select the Endpoint in question) > Production variants (select the Model name). In the SageMaker Model you will see the Model data location containing the S3 location to your model tar ball.","Q_Score":0,"Tags":"python,amazon-s3,jupyter-notebook,amazon-sagemaker","A_Id":71355908,"CreationDate":"2022-03-04T10:59:00.000","Title":"Deploy model from local jupyter notebook to amazon sagemaker","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Actually we are deploying elasticsearch django application in aws ec2.Here, i need to know something about elasticsearch. Will elasticearch automatically updates with the update in postgres or do we need to use extra modules to sync elasticsearch and postgres together so that whatever changes happens in postgres database, it will also update in elasticsearch.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":37,"Q_Id":71350496,"Users Score":0,"Answer":"Elasticsearch-dsl keeps sync between indexes and db","Q_Score":0,"Tags":"python,django,elasticsearch,e-commerce,elasticsearch-dsl","A_Id":71350584,"CreationDate":"2022-03-04T11:03:00.000","Title":"Do weed something to sync elasticsearch dsl to postgres databse","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"[Never worked with a RPi before, absolute noob on that field]\nI want to make a desktop\/mobile app to access a program on a RaspberryPi. The only task of the app is to send a command and display the received response on an UI. It's meant only for private use, but it should also work outside my local network. So as long as I have mobile internet on the phone it should be possible to access the program with the app.\nCan I achieve this without using any kind of public website? I saw some tutorials that used Flask and other frameworks to do sth similar, but I want the access to be restricted to the app. There shouldn't be any URL I could type in my browser, that gives me access to a login page or sth like that.\nIf you know the specific term for what I am describing here or even better an article\/tutorial that features it, that would be very helpful.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":33,"Q_Id":71352651,"Users Score":1,"Answer":"You need two things for that:\n\nMake your Raspi visible to the outside world. That can typically be done by configuring port forwarding in your router. Note that this might impose a certain security risk.\n\nMake sure you have a global DNS name for your internet access. Since the IP of your router may change frequently (depending on your ISP), you need a URL or rather, a DNS entry. There exist public DNS services that can assign a DNS entry to a dynamic IP (typically for a fee). Many routers support a protocol to configure such services.\n\n\nAfter that, you can program an app that uses the given DNS entry to talk to your Pi.\nSo no, without a public URL, this is not possible, at least not over the long term. You might be able to go with the public IP of your router, but then your app may fail from one day to the next.","Q_Score":0,"Tags":"python,raspberry-pi,webserver","A_Id":71355505,"CreationDate":"2022-03-04T14:08:00.000","Title":"RaspberryPi access without public URL possible?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Here I go again on another tangent youve been so kind to help me with.\nOK...\nCall a PHP script hosted on Heroku (working fine)\nI would like that PHP script call a python script that sends an email. (Ive got the python part working fine and dont like my chances of rewriting it all in PHP)\nSo...\nOne heroku instance of PHP?\nSecond heroku instance of Python?\nThree I dont bother as Im too confused.\nHeroku has a web worker, which works when i call it using a scheduler, but I would like to call it on request.\nPossible im sure it is, dont get it no I dont.\nAny helpers??\nThanks people :)","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":30,"Q_Id":71366834,"Users Score":0,"Answer":"Solved it. Used multiple buildpacks on Heroku, one for PHP and the other Python. The PHP as a web process, which does a simple exec to the main python code. Worked a treat. Hopefully that helps someone work out a similar issue.","Q_Score":0,"Tags":"python,php,heroku","A_Id":71376643,"CreationDate":"2022-03-06T00:08:00.000","Title":"Python\/PHP Heroku integration","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Currently my network speed is about 1.5s per page if there are images in that page, If i move to different pages with image, audio and video file in it then loading of page takes around 2s to 2.5s. What i want to know is if there is a way to bring that loading time to minimum.\nI am using Django, and Django-templates here to create such web application.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":27,"Q_Id":71368767,"Users Score":0,"Answer":"Since you are talking about images, audio and video, first I will play with the size and quality of the image, make some tests. For the audio and video you might want to use the attribute preload=\"none\". This from the template. Another option is to upload image\/audio\/video by scroll, or paging. It is not a good practice to send all together. i.e: show 10\/15 multimedia per page\nFrom the view check the queries you are executing and the data structures you are using (memory consume is important, avoid huge lists and jsons). The same goes for the custom filters, if applicable.","Q_Score":0,"Tags":"python-3.x,django,django-templates,django-media","A_Id":71386023,"CreationDate":"2022-03-06T08:33:00.000","Title":"How to reduce response time of the web page to minimum in django?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"When I make any changes in views.py it doesnt appear in my browser unless I restart the server. Even CTRL + F5 and SHIFT+CTRL+R doesnt work . Does this happen for a reason?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":24,"Q_Id":71369771,"Users Score":0,"Answer":"While saving the changes you have made in the code does the server restart in the shell. If it does the changes must be displayed otherwise it will not display changes.","Q_Score":0,"Tags":"python,django","A_Id":71370443,"CreationDate":"2022-03-06T11:17:00.000","Title":"Changes in views.py doesnt appear in my browser unless I stop the server","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Haven't been able to find this answer online, so I'm asking the stackoverflow community...\nI'm wondering if DataSpell can connect to a SageMaker instance and use the EC2 instance hardware (i.e. virtual CPUs, GPUs, RAM, etc.) to run data transformations and machine learning model training on python and Jupyter notebook files?\nI.e. I want all the advantages of DataSpell on my local computer (git, debugging, auto-complete, refactoring, etc.), while having all the advantages of a SageMaker instance on AWS (scalable compute hardware, fast training, etc.) to run python and Jupyter notebook files.\nThank you.","AnswerCount":1,"Available Count":1,"Score":-0.1973753202,"is_accepted":false,"ViewCount":151,"Q_Id":71382998,"Users Score":-1,"Answer":"This can not be done. You can't bring your own IDE to SageMaker. You can use SageMaker's native IDE - SageMaker Studio which will give you an integrated experience with all of SageMaker's capabilities.\nI work at AWS and my opinions are my own.","Q_Score":1,"Tags":"python,jupyter-notebook,pycharm,amazon-sagemaker,dataspell","A_Id":71386785,"CreationDate":"2022-03-07T14:59:00.000","Title":"DataSpell & AWS Sagemaker Connection","Data Science and Machine Learning":1,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am looking to deploy a Python Flask app on an AWS EC2 (Ubuntu 20.04) instance. The app fetches data from an S3 bucket (in the same region as the EC2 instance) and performs some data processing.\nI prefer using s3fs to achieve the connection to my S3 bucket. However, I am unsure if this will allow me to leverage the 'free data transfer' from S3 to EC2 in the same region - or if I must use boto directly to facilitate this transfer?\nMy app works when deployed with s3fs, but I would have expected the data transfer to be much faster - so I am wondering that perhaps AWS EC2 is not able to \"correctly\" fetch data using s3fs from S3.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":50,"Q_Id":71391966,"Users Score":0,"Answer":"All communication between Amazon EC2 and Amazon S3 in the same region will not incur a Data Transfer fee. It does not matter which library you are using.\nIn fact, communication between any AWS services in the same region will not incur Data Transfer fees.","Q_Score":0,"Tags":"amazon-web-services,amazon-s3,amazon-ec2,boto,python-s3fs","A_Id":71394766,"CreationDate":"2022-03-08T08:25:00.000","Title":"Can I use s3fs to perform \"free data transfer\" between AWS EC2 and S3?","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to check logged-in user is Administrator or not in a Python file?\nHow can I guess Administrator is it User's ID, Name Or Setting Access Rights?","AnswerCount":4,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":84,"Q_Id":71392759,"Users Score":0,"Answer":"With Python, you can get the ID of the Administrator user by using this code:\nadmin_id = self.env.ref('base.partner_admin')\nFor the access rights, you can check if the administrator user is already in a specific security group by using this Python code:\nself.env.ref('base.partner_admin').has_group('module_name.group_id')","Q_Score":0,"Tags":"python,odoo,settings,administrator","A_Id":71393474,"CreationDate":"2022-03-08T09:33:00.000","Title":"How do I know which user is Administrator in Odoo?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to check logged-in user is Administrator or not in a Python file?\nHow can I guess Administrator is it User's ID, Name Or Setting Access Rights?","AnswerCount":4,"Available Count":2,"Score":-0.049958375,"is_accepted":false,"ViewCount":84,"Q_Id":71392759,"Users Score":-1,"Answer":"You can fire a select query in PostgreSQL to know ID of admin.\nSELECT id FROM res_users WHERE name='admin'","Q_Score":0,"Tags":"python,odoo,settings,administrator","A_Id":71418388,"CreationDate":"2022-03-08T09:33:00.000","Title":"How do I know which user is Administrator in Odoo?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a spring boot application that runs certain python scripts using the process class combined with the buffered reader to read the out put. This project works fin within the intellij tomcat embedded server. However when we try to run it on a stand alone tomcat server we get the error  Cannot run program \"python\": CreateProcess error=2, The system cannot find the file specified . Keep in mind this program works fine within the intellij embedded tomcat server. We have come tot he conclusion that THE stand alone tomcat is not picking up our python environment variables. How can we resolve this problem? Is there anything we need to add to tomcat to get the server to recongnize the python environment variable.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":28,"Q_Id":71398799,"Users Score":0,"Answer":"Here is the answer: When running python scripts from java you must provide the full python executable path. For some reason tomcat does not recognize the system variables.","Q_Score":0,"Tags":"python,spring,spring-boot,tomcat,tomcat9","A_Id":71400817,"CreationDate":"2022-03-08T17:00:00.000","Title":"How to add python to tomcat 9 list of environment variables?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":1,"Web Development":1},{"Question":"After learning how to code Python I'm starting to learn and figure out how to structure projects and set virtual environments up, but I can't make my mind up on how are packages managed when the virtual environment is activated. To make an example: I want to make a Django project. So, first of all, mkdir the project folder, cd into it and then execute python -m venv [whatever]. cd into Scripts folder and execute 'activate'. Then, pip install Django and pip list and shows Django. At last, I deactivate the virtual environment and make pip list again. Why is Django listed there? Should it?","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":45,"Q_Id":71402468,"Users Score":0,"Answer":"You might have installed Django both inside and outside the venv (outside being the system python installation). Deactivate the venv and run pip uninstall django then try again.","Q_Score":0,"Tags":"python,pip,python-venv","A_Id":71402661,"CreationDate":"2022-03-08T23:04:00.000","Title":"How does pip work under virtual environments?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"After learning how to code Python I'm starting to learn and figure out how to structure projects and set virtual environments up, but I can't make my mind up on how are packages managed when the virtual environment is activated. To make an example: I want to make a Django project. So, first of all, mkdir the project folder, cd into it and then execute python -m venv [whatever]. cd into Scripts folder and execute 'activate'. Then, pip install Django and pip list and shows Django. At last, I deactivate the virtual environment and make pip list again. Why is Django listed there? Should it?","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":45,"Q_Id":71402468,"Users Score":0,"Answer":"Okay, finally I understood what was happening and I didn't realize. On one hand, virtual environments are completely independent from the global or system, so what is being installed in one side it shouldn't affect the other. On the other hand, what happened was, that for being inside the Scripts folder, when trying to execute Python commands I was actually executing the scripts with the same name, which are copies to use with the virtual environment and which can be used calling the \"activate\" script. There was actually no problem, it was me messed up.\nThanks to all contributors for their help.","Q_Score":0,"Tags":"python,pip,python-venv","A_Id":71416871,"CreationDate":"2022-03-08T23:04:00.000","Title":"How does pip work under virtual environments?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"i'm totally new in NLP and Bert Model.\nWhat im trying to do right now is Sentiment Analysis on Twitter Trending Hashtag (\"neg\", \"neu\", \"pos\") by using DistilBert Model, but the accurazcy was about 50% ( I tried w Label data taken from Kaggle).\nSo here is my idea:\n(1) First, I will Fine-tunning Distilbertmodel (Model 1) with IMDB dataset,\n(2) After that since i've got some data took from Twitter post,  i will sentiment analysis them my Model 1 and get Result 2.\n(3) Then I will refine-tunning Model 1 with the Result 2 and expecting to have Model (3).\nIm not really sure this process has any meaning to make the model more accuracy or not.\nThanks for reading my post.","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":26,"Q_Id":71404582,"Users Score":1,"Answer":"I'm a little skeptical about your first step. Since the IMDB database is different from your target database, I do not think it will positively affect the outcome of your work. Thus, I would suggest fine-tuning it on a dataset like a tweeter or other social media hashtags; however, if you are only focusing on hashtags and do not care about the text, that might work! My little experience with fine-tuning transformers like BART and BERT shows that the dataset that you are working on should be very similar to your actual data. But in general, you can fine-tune a model with different datasets, and if the datasets are structured for one goal, it can improve the model's accuracy.","Q_Score":0,"Tags":"python,nlp,pytorch,sentiment-analysis,bert-language-model","A_Id":72243747,"CreationDate":"2022-03-09T05:09:00.000","Title":"Does Fine-tunning Bert Model in multiple times with different dataset make it more accuracy?","Data Science and Machine Learning":1,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I've created an app in python with the help of pyrebase4, I'm able to register a user and allow only email verified users to login.\nI want to limit a particular user to login 'n' number of times a day. Is there any security rule that could limit this? A rule which can check the number of time that particular user has logged-in in a day?\nThanks.","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":33,"Q_Id":71405920,"Users Score":0,"Answer":"Firebase Authentication doesn't have any configurable way to limit how often a user can sign in. In fact, the recommended flow is that you require the user to sign in as infrequently as possible, and the SDKs persist the authentication state between app restarts\/page reloads precisely to prevent the user from having to sign in each time they open the app.\nIt sounds more like this is an app-specific use-case, where you want the user to only be able to use your app a certain number of times per day.\nThe simplest way I could think of implementing that is to increment a counter for the current date every time the user starts the app, for example in one of the Firebase databases. You'd then also check the value on startup, and show a message to the user shown when they've exceeded the limit.\nOnce you store the counter in the database, you can write security rules that prevent the user from accessing other data once the counter is above your limit. And this lack of access to the data would then presumably make the app unusable to them.","Q_Score":0,"Tags":"python,firebase,firebase-authentication,pyrebase","A_Id":71412455,"CreationDate":"2022-03-09T07:46:00.000","Title":"Firebase rule to allow particular user to login 'n' number of times a day","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have deployed the python flask based app in aws. It is running fine on http:\/\/<ip>. I need to convert this to https. I have sent request for admin to enable port 443 for https. Will that automatically make my app to https or do I need to install or setup something else to make it happen. Please help. Thanks","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":26,"Q_Id":71409245,"Users Score":0,"Answer":"You have multiple choices for this;\nUse ACM (Easiest?!):\nif you're using AWS loadbalancers, you can create a certificate using ACM service and assign it to your loadbalancer and modify your Target Groups in EC2 panel.\nIf you are using cloudfront, you can also configure your SSL\/TLS there. (Not changing the loadbalancer and target groups). It will work as an upper layer.\nUse other certificate providers excluding AWS ACM:\nYou can setup something like Lets Encrypt or use Cloudflare services.\nNote: it really depends on how your cloud stack currently is, you maybe be only deploying on EC2 Server and having Nginx configured and having everything else done outside of AWS with other services or you can have Lets Encrypt certificate on your ALB.\nThis post just gives you some keywords, you can search and see exact instruction\/tutorial for every solutions.","Q_Score":0,"Tags":"python-3.x,amazon-web-services,api,flask","A_Id":71413553,"CreationDate":"2022-03-09T12:18:00.000","Title":"How to convert http to https api url deployed in aws","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"After starting my app using dev_appserver.py --enable_console true my_app\/, I go to localhost:8000, select the interactive console, and then run a Python script that initializes the datastore.\nIs there a way to run this init script from the command line?\nI looked at --python_startup_script my_init_script.py, but that is called before the app is started, and so it doesn't make sense.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":49,"Q_Id":71427629,"Users Score":2,"Answer":"Moving details from comments section to full answer\nDon't know if that is possible but a possible workaround could be to put this code at the beginning of your main.py or whatever is your main file.\nThe process then becomes - your app starts, loads your main file (maybe when someone visits your home page) which checks if a flag is set. If flag is not set, it runs your datastore init script and sets the flag (maybe the flag is set in datastore itself).\nI had something similar to what I described but the code is triggered when you try to access the home page url.","Q_Score":0,"Tags":"python,google-app-engine,google-cloud-datastore,development-environment,dev-appserver","A_Id":71441991,"CreationDate":"2022-03-10T16:33:00.000","Title":"dev_appserver.py: Run init script from command line? (instead of interactive console)","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"i am learning how to use coverage package for evaluating which statements in django\/python application are covered by unit tests and which are not. I ran command:\ncoverage run --source \"APP\" manage.py test && coverage report && coverage html\n, which created htmlcov folder and multiple html-files inside it. Each file corresponds to the .py file, however in the beginning of each file-name , i see a strange prefix, something like this: \"d_10d11d93a0707d03_example_py.html\" instead of expected \"example_py.html\". I wasn't able to google any explanations to this. Please help if you know why is this happening and how to avoid this prefix if at all possible.\nThanks!","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":70,"Q_Id":71430001,"Users Score":0,"Answer":"The prefix is there so that same-named files in different directories won't collide.  There isn't a way to avoid the prefix.  You should open the htmlcov\/index.html file, and navigate from there.","Q_Score":0,"Tags":"python,django,code-coverage","A_Id":71442919,"CreationDate":"2022-03-10T19:51:00.000","Title":"Coverage html report in django python application created htmlcov folder with files, however each file has strange prefix","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Im trying to install django on an venv using python (3.9) on vsc.\nI already had a hard time activating the venv and now i can't seem to be able to install django.\nwhen i use pip install django this shows up :\n(env) PS C:\\CODE_PROJECTS\\django_test> pip install Django\nFatal error in launcher: Unable to create process using '\"C:\\Users\\camil\\CODE_PROJECTS\\django_test\\env\\Scripts\\python.exe\"  \"C:\\CODE_PROJECTS\\django_test\\env\\Scripts\\pip3.9.exe\" install Django': O sistema n\u00d2o pode encontrar o arquivo especificado.\nI have tried pip3, pip3.9 also and same result\nWhat should I do?","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":75,"Q_Id":71451089,"Users Score":0,"Answer":"you can try pipwin django! maybe that'd work","Q_Score":0,"Tags":"python,django","A_Id":71451105,"CreationDate":"2022-03-12T15:59:00.000","Title":"I can't install django through pip","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"Hi when a status is posted on whatsapp then a new circle is posted next to status and it stays there until all the statuses are viewed - this circle drives me and a lot of other people mad.\nIs there way to get rid of it or i was thinking maybe with python or some other programing language, we could do something which as soon as someone posts a whatsapp status, then it views it automatically and then that circle will never be there !\nAny ideas or solutions about this ?\nThank you very much in advance.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":38,"Q_Id":71461826,"Users Score":0,"Answer":"Apply web scraping to remove the unwanted circles.","Q_Score":0,"Tags":"python,python-3.x,whatsapp,whatsapi","A_Id":71462140,"CreationDate":"2022-03-14T00:05:00.000","Title":"Open whatsapp statuses automatically with Python - Hide the annoying whatsapp status circle","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a specific usecase where I need to make available same queryset endpoint for the frontend with and without pagination. I need to use CursorPagination and currently I'm just setting pagination_class = CursorPagination on my *ViewSet class.\nIs there an easy way to achieve this requirement?","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":46,"Q_Id":71466574,"Users Score":0,"Answer":"Found a solution.\nYou can override page_size_query_param variable on CursorPagination class. That way you can allow the frontend to set how many records it will get per page. So the frontend can use a very large number for the page size query parameter to get all the data.\nNot sure if this approach has some inherent problems though.","Q_Score":0,"Tags":"python,django,django-rest-framework","A_Id":71466904,"CreationDate":"2022-03-14T10:53:00.000","Title":"How to conditionally enable and disable Cursor Pagination on Django Rest Framework?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a little Django app that uses PyMongo and MongoDB.\nIf I write (or update) something in the database, I have to restart the server for it to show in the web page. I'm running with 'python manage.py runserver'\nI switched to the django dummy cache but that didn't help.\nEvery database action is within an 'with MongoClient' statement.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":27,"Q_Id":71472582,"Users Score":0,"Answer":"I figured it out. I read in the data in the django_tables2 class variables. So it was never refreshed...\nBangs forehead on desk...","Q_Score":0,"Tags":"python,django,mongodb,pymongo","A_Id":71484768,"CreationDate":"2022-03-14T18:30:00.000","Title":"Cache problems in Django\/PyMongo\/MongoDB","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm trying to convert ROS Image to stream(not video format eg.mp4) and send it to the Janus webrtc server with python. The reason why I need stream is the params of 'MediaPlayer' in aiortc module which helps communicate with Janus(webrtc) server, can only receive video format and stream format(eg. \/dev\/video0) and I should not save it as video format.\nSo what I am thinking now is converting ros image to a gstreamer.\nHow can I convert it? or is there any good solution?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":62,"Q_Id":71476335,"Users Score":0,"Answer":"try use web_video_server or jpeg_streamer","Q_Score":0,"Tags":"python,stream,webrtc,ros,janus","A_Id":71643230,"CreationDate":"2022-03-15T02:24:00.000","Title":"How can I convert Ros images to stream?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a table in my db and I am connecting it to a Django model using \"managed=False\". The thing is I don't want all 300 columns on that table. I only need two or three column, can I create a model with db_table pointing to that table but not defining all columns?\nAppreciate your time in advance.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":32,"Q_Id":71477381,"Users Score":0,"Answer":"I realized Django accepts multiple model definitions, with multiple columns in the different apps for the same project.\nI had a very large table and I could manage it and make any query by only defining a subset of columns I needed. I did that even twice in two different apps of the same Django project. Please note that I used the Meta value of \"managed=False\" to keep my data safe from any unwanted Django Alter migrations. You can do the same if your table is managed by another application and you are only connecting to it for some data readings.","Q_Score":0,"Tags":"python,django","A_Id":71528447,"CreationDate":"2022-03-15T05:17:00.000","Title":"Partial model match in django?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm working on a Django Project, and I have all my datas in .sql files.\nI want to insert all of them in my Database.\nCan I use the python shell to do it ? Or should I use another method ?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":38,"Q_Id":71499891,"Users Score":0,"Answer":"If you have file or can convert your data into csv or xml then you can make a script which iterate through your data file and then store each data into variable and as per your Django model fields and then you can bulk_create","Q_Score":0,"Tags":"python,django,database","A_Id":71522975,"CreationDate":"2022-03-16T15:31:00.000","Title":"Insert data from SQL file in Django DB","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to create a python form with a textfiled and a button where a user will enter his\/her link and it will create a webview flutter apk for that url. I want advice from the community if it is possible or not. If it is possible, please let me know how can I achieve it.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":22,"Q_Id":71503709,"Users Score":0,"Answer":"Maybe you can achieve this via using a remote server. You can create a connection between your python program and the server, and you can create the apk file in server and send it to your python program.","Q_Score":0,"Tags":"python,flutter,dart,webview,automation","A_Id":71509534,"CreationDate":"2022-03-16T20:14:00.000","Title":"Make a WebView flutter app with different urls everytime using python","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":1,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have system that creates uploadable link to Google Cloud Storage Bucket uploads. After that user is uploading it directly there from Frontend.\nIs there a way to verify this image file there without downloading it to a Backend app and verify there (e.g. using PIL for python)?\nVerification for:\n\nis it an image at all;\nis it fully uploaded;\nis it not broken;\netc.\n\nP.S. is there anything similar for PDF?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":56,"Q_Id":71516541,"Users Score":0,"Answer":"Cloud Storage doesn't directly offer any direct support for any particular formats, be it JPEG or PDF or anything else. To fully validate what's in a file, you need to download it and check.\nYou can, however, get part of the way there.\nFirst, you can have your client validate the file, then capture the size and\/or a checksum (either MD5 or CRC32c) of the original file, and you can specify them as part of the upload to ensure that they are uploaded exactly as intended. If your server can know the intended file size or checksum, you can ask Cloud Storage for just the metadata of an object without downloading it to verify that it is as intended.\nSecond, many files, including JPEG, have particular headers or footers that describe their contents. Instead of downloading what is potentially a very large image, you could download only the first few bytes from Cloud Storage. If the first two bytes aren't 0xFF and 0xD8, then it's not a JPEG file. Similar magic numbers exist for many other formats.","Q_Score":0,"Tags":"python,file-upload,google-cloud-storage,python-imaging-library,google-bucket","A_Id":71522034,"CreationDate":"2022-03-17T17:20:00.000","Title":"Verify image in Google Cloud Storage Bucket","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm quite new to back-end development so please forgive my ignorance.\nI need to connect my Django backend to a 3rd party API to fetch live location data from GPS trackers. This needs to be done server side as it triggers other events, so it can't just be run in the browser.\nWhat's the best way to go about doing this please? So far I have thought of something like an event loop which calls the API every 60 seconds, but can I run this on a separate thread for example? Is that even the best thing to do?\nIs it possible to do something like a websocket form my backend to the 3rd party? What's the best way of keeping this data updated?\nFinally, how does a solution like this scale, what if I had 5,000 vehicle trackers which all needed updating?\nAny advice would be greatly appreciated.\nThank you.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":37,"Q_Id":71534144,"Users Score":0,"Answer":"you might create an empty webpage which triggers your backend logic,\nand configure cronjob which would send get request on this page every 60 seconds,\nit also will be started on separate thread by deafult.\nyou might scale it for example you have 5000 vehicles, just split this backend logic on two different functions(each 2500 vhicles) (which would be triggered by two different get requests), and they would work independant, on separate threads)\nor you can use asyncio to split your logic inside one function, and still start it asynchronously and separatly","Q_Score":0,"Tags":"python,django,backend,web-development-server","A_Id":71536309,"CreationDate":"2022-03-18T23:22:00.000","Title":"django 3rd party API Event Loop?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am a noob to django and python \nI have a django form, it needs a dropdown menu with input field to enter the text which is not listed in dropdown. Is there any shortcut method for it?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":58,"Q_Id":71538650,"Users Score":0,"Answer":"After so many searches in google i have found a solution for the issue.\nUsing autocomplete which is provided by the javascript","Q_Score":0,"Tags":"python,django,forms,drop-down-menu,django-forms","A_Id":72106926,"CreationDate":"2022-03-19T13:44:00.000","Title":"How to make Dropdown with input field in django form","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I try to intercept requests by seleniumwire.\nIf I dont use option --user-data-dir everything is fine. All requests are showed by driver.requests.\nBut I need parse some sites with authentication. So I provide in --user-data-dir option profile with remembered accounts. But in this case HTTPS requests not intercepted.\nCommand driver.requests showes only requests to google-ads and some other trash.\nSo how to intercept HTTPS requests while providing profile?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":23,"Q_Id":71539741,"Users Score":0,"Answer":"I should to disable all proxy extensions.\noptions.add_arguments(\"--disable-extensions\")","Q_Score":0,"Tags":"python-3.x,selenium,https,selenium-chromedriver,seleniumwire","A_Id":71563645,"CreationDate":"2022-03-19T16:03:00.000","Title":"Seleniumwire dont intercept HTTPS if user-data-dir is defined","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"As we all know the best code style practice to is to name Django models (classes) as singular (Cat, User, Permission, etc.), instead of plural (Cats, Users, Permissions), because it represents the structure of one record of the model. But in case of user settings it become UserSetting. Setting could be interpretted as one key-value pair but we have complete user settings record with multiple key-value pairs. So it's UserSettings.\nIt appearently become confusing. So what should we do in that case?\n\nUserSetting\nUserSettings\nUserSettingsRecord\nOther ideas?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":40,"Q_Id":71570638,"Users Score":0,"Answer":"I would simply use UserSettings, because you should name your model as a single instance of it, since a single instance contains multiple settings the plural is the correct choice (UserSetting seems to contain only a single user setting). To distinguish a single instance from multiple instances, you could append the noun instance\/row\/record, so with UserSettingsRecord you could make it more explicit even if I don't see it necessary (the thing is obvious and with long names you only lengthen the code).","Q_Score":0,"Tags":"python,django,django-models,coding-style,naming-conventions","A_Id":71570879,"CreationDate":"2022-03-22T10:41:00.000","Title":"How to name Settings model properly in Django?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am processing a video in backend but it's taking some time so I am looking for a way by which I can send the process time first and after it's completion I can send the video url.\nI tried using HttpResponse.write() but it didn't send the response. I got response only after the completion  of whole process.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":35,"Q_Id":71586403,"Users Score":0,"Answer":"You need async method and use something like websocket.","Q_Score":1,"Tags":"python,django,django-rest-framework,httpresponse,jsonresponse","A_Id":71586529,"CreationDate":"2022-03-23T11:27:00.000","Title":"How to send two response for a single post request in Django Rest Framework?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to implement Social login in my Django project. When I searched about it, I found social login for only one user. But I want to implement it for different type of users as I mentioned in the title. Can anyone suggest a solution to implement this in my project.","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":65,"Q_Id":71600682,"Users Score":1,"Answer":"You can allow auto-registration to everybody. But, to be registered on your app doesn't mean user can do anything in app. Only users on group candidate , employer or customer are allowed to see data or perform operations in app.\nThen, you can create views on your app to put users on group. For example, a user of the grup employer can assign users to group customer.","Q_Score":1,"Tags":"python-3.x,django,python-social-auth","A_Id":71600777,"CreationDate":"2022-03-24T10:22:00.000","Title":"How to implement Django social login using google for different type of users(eg: candidate ,employer, customer)","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm attempting to do a django bulk_create for a list of objects. However, every so often one of the objects in the bulk_create already exists (it's primary key has already been allocated) so an exception is raised and no objects get created. To fix this I added a loop over each of the new objects to test if they exist prior to the bulk_create call but this feels very inefficient. Is there way to accomplish the same result in fewer queries to the database?","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":30,"Q_Id":71630651,"Users Score":0,"Answer":"Get all records from your database once. Then check if there are any duplicates. Eliminate them and do bulk create.\n\nDepends on what database you are using. If for example you are using Oracle, then maybe there are options with custom PL\/SQL procedures you can create. I don't know PL\/SQL though, I am just sure that if it is a language, then there must be options...","Q_Score":0,"Tags":"python,django","A_Id":71630698,"CreationDate":"2022-03-26T18:14:00.000","Title":"How to quickly see if all items in list of Primary Keys exist prior to bulk_create call?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm building a web app to manage a fleet of moving vehicles. Each vehicle has a set of fixed data (like their license plate), and another set of data that gets updated 3 times a second via websocket (their state and GNSS coordinates). This is real-time data.\nIn the frontend, I need a view with a grid showing all the vehicles. The grid must display both the fixed data and the latest known values of the real-time data for each one. The user must be able to sort or filter by any column.\nMy current stack is Django + Django Rest Framework + Django Channels + PostgreSQL for the backend, and react-admin (React+Redux+FinalForm) for the frontend.\nThe problem:\nStoring real-time data in the database would easily fulfill all my requirements as I would benefit from built-in DRF and Django's ORM sorting\/filtering, but I believe that hitting the DB 3 times\/sec for each vehicle could easily become a bottleneck when scaling up.\nMy current solution involves having the RT data in python objects that I serialize\/deserialize (pickle) into\/from the Django cache (REDIS-backed) instead of storing them as models in the database. However, I have to manually retrieve the data and DRF-serialize it in my DRF views. Therefore, sorting and filtering don't work as there are no SQL queries involved.\nIf pgsql had some sort of memory-backed tables with zero disk access it would be great, but, according to my research there is no such feature as of today.\nSo my question is:\nWhat would be the correct\/usual approach to my problem?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":56,"Q_Id":71632116,"Users Score":0,"Answer":"I think you should separate your service code into smaller service:\n\nReceive data from vehicles\nProcess data\nSeparate vehicles into smaller group, use unique socket for each group\n\nTry to update latest values as batch.\nUse RAID for your database.\nAnd I think that using cache for realtime data is wasted server resources.","Q_Score":0,"Tags":"python,django,postgresql,django-rest-framework,real-time-updates","A_Id":71985687,"CreationDate":"2022-03-26T21:54:00.000","Title":"Django cache real-time data with DRF filtering and sorting","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I develop a highly loaded application that reads data from DynamoDB on-demand table. Let's say it constantly performs around 500 reads per second.\nFrom time to time I need to upload a large dataset into the database (100 million records). I use python, spark and audienceproject\/spark-dynamodb. I set throughput=40k and use BatchWriteItem() for data writing.\nIn the beginning, I observe some write throttled requests and write capacity is only 4k but then upscaling takes place, and write capacity goes up.\nQuestions:\n\nDoes intensive writing affects reading in the case of on-demand tables? Does autoscaling work independently for reading\/writing?\nIs it fine to set large throughput for a short period of time? As far as I see the cost is the same in the case of on-demand tables. What are the potential issues?\nI observe some throttled requests but eventually, all the data is successfully uploaded. How can this be explained? I suggest that the client I use has advanced rate-limiting logic and I didn't manage to find a clear answer so far.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":74,"Q_Id":71663032,"Users Score":1,"Answer":"That's a lot of questions in one question, you'll get a high level answer.\nDynamoDB scales by increasing the number of partitions. Each item is stored on a partition. Each partition can handle:\n\nup to 3000 Read Capacity Units\nup to 1000 Write Capacity Units\nup to 10 GB of data\n\nAs soon as any of these limits is reached, the partition is split into two and the items are redistributed. This happens until there is sufficient capacity available to meet demand. You don't control how that happens, it's a managed service that does this in the background.\nThe number of partitions only ever grows.\nBased on this information we can address your questions:\n\n\n\nDoes intensive writing affects reading in the case of on-demand tables? Does autoscaling work independently for reading\/writing?\n\nThe scaling mechanism is the same for read and write activity, but the scaling point differs as mentioned above. In an on-demand table AutoScaling is not involved, that's only for tables with provisioned throughput. You shouldn't notice an impact on your reads here.\n\n\n\nIs it fine to set large throughput for a short period of time? As far as I see the cost is the same in the case of on-demand tables. What are the potential issues?\n\nI assume you set the throughput that spark can use as a budget for writing, it won't have that much of an impact on on-demand tables. It's information, it can use internally to decide how much parallelization is possible.\n\n\n\nI observe some throttled requests but eventually, all the data is successfully uploaded. How can this be explained? I suggest that the client I use has advanced rate-limiting logic and I didn't manage to find a clear answer so far.\n\nIf the client uses BatchWriteItem, it will get a list of items that couldn't be written for each request and can enqueue them again. Exponential backoff may be involved but that is an implementation detail. It's not magic, you just have to keep track of which items you've successfully written and enqueue those that you haven't again until the \"to-write\" queue is empty.","Q_Score":2,"Tags":"python,amazon-web-services,apache-spark,amazon-dynamodb","A_Id":71664852,"CreationDate":"2022-03-29T13:32:00.000","Title":"DynamoDB on-demand table: does intensive writing affect reading","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am working on a project to convert Python code that's using the soon-to-be-discontinued Adwords API to the new version Google Ads API v10.\nI have a query that needs a few metrics, but when I use the main customer ID that works to connect, I get REQUESTED_METRICS_FOR_MANAGER error saying I need to \"issue separate requests against each client account under the manager account\".\nHow do I generate a client account to do this? I haven't seen any examples of this step.\nThanks much!","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":107,"Q_Id":71670081,"Users Score":0,"Answer":"The account ids I needed were in a local MySQL database that a colleague on the project guided me to look at.\nSo in general: check with your management and colleagues ...","Q_Score":0,"Tags":"python-3.x,google-ads-api","A_Id":71683533,"CreationDate":"2022-03-30T00:02:00.000","Title":"Google ads api v10: how to generate \"client account\" to use to get metrics?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am working on a stock screener project using Django, Pandas and Plotly. One of the pages is the user's watchlist where certain stats get displayed for each stock (one HTML table row per stock). This HTML table gets generated in the \"watchlist\" view by converting a Pandas DataFrame into html using the \"to_html\" method (with escape=False).\nEach row of the HTML table has a \"View graph\" button which opens an interactive Plotly graph for the relevant stock. The graph is generated based on the results of the calculations made in the \"watchlist\" view, and is represented by an html string that gets sent to the \"watchlist\" template as part of the context.\nAt the moment I am loading all the stock graphs below the HTML table each time the \"watchlist\" page gets loaded, but initially the graphs remain hidden with css. Each graph has an id in the dataset that allows me to \"unhide\" it with JavaScript when someone clicks the matching button with the same id in the table.\nHowever, loading all the graphs at once when the \"watchlist\" page is being loaded takes a lot of time, and I am trying to think of  for a solution that would make the process faster and that would be optimal architecturally. The number of stocks (and matching graphs) in a user's watchlist can be up to 50-100.\nMy understanding is that potential options are:\n\ncreate a \"graph\" template and view, and then use each \"View graph\" button to direct the user to the \"graph\" template that would display the relevant graph. However, I am not sure whether it is possible to pass a graph represented as an html string to the \"graph\" view.\n\ncreate a separate HTML file for each graph at the point when calculations are being made in the \"watchlist\" view, then link each \"View graph\" button to the relevant HTML file. However, I am not sure where these HTML files need to go (especially after deployment) and how I could clean them up on a regular basis (as each graph would only be needed once).\n\nload each graph on the \"watchlist\" page asynchronously when the matching \"View graph\" button gets clicked (as opposed to loading all the graphs at once when the page loads initially). I am using Vanilla JavaScript for the project's front end, and was wondering if this can be implemented without introducing React, JQuery etc.\n\n\nI apologise if there is an obvious solution here, but I have not worked with Django for too long, and would appreciate advice on how to handle this before I go down the rabbit hole of learning new tools that may or may not be optimal for this particular case.\nThank you so much!","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":61,"Q_Id":71676826,"Users Score":0,"Answer":"Well you can load the watchlist page without loading the graphs initially and then send a get request to get a specific graph whenever the user clicks on the button of showing the graph.\nThis can be achieved via htmx and it has a dedicated package for django named django-htmx. Read their docs.","Q_Score":0,"Tags":"javascript,python,django","A_Id":71688339,"CreationDate":"2022-03-30T12:00:00.000","Title":"Loading an interactive Plotly graph at a click of a button in Django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm making a program that does face detection.  When it detects an unknown face, it saves the frame and sends a text to a list of phone numbers.  The issue I'm facing is that I would like to attach the jpg file that is saved (of that frame) to the text.  However the way I'm sending the text it needs to be a url.  I haven't done much with cloud hosting which I think would be the easiest way to get a url for it.. what would be a good place to do that that's free?  Also, it does have to be a http\/https url, I tried doing the local file url but it does actually have to be a web one.  Would cloud hosting it be the easy option, or would it be easier to just host a local html site that holds the image?  And how would I go about hosting it in python if that is the easier option?\nI've looked for cloud hosting options, but I'm not really sure what to use that's free, and how to go about doing it from python.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":16,"Q_Id":71680816,"Users Score":0,"Answer":"I believe that recommendation of services is not allowed on this site, but you do need to have it hosted online, because when you send an image it usualy doesn't send the actual file. It just tell the reciepiat where to look for the file, so both you and the reveiver need to have acces to the site. A way that I know could work is getting a firebase sub-domain, but that would probs be more work then needed, but it should be a solid solution if you aren't planning on sending over 10 of then a day or to have 50 people look at them.","Q_Score":0,"Tags":"python,cloud,web-hosting,detection,face","A_Id":71680925,"CreationDate":"2022-03-30T16:24:00.000","Title":"Getting a URL from a JPG file in python","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am using plotly to display a line chart and a pie chart using python, but when i run the code it opens the charts in two separate browsers. I was wondering how I can get both charts to open in one single browser.\nThe code for both works but separately on different browsers. I tried using the plotly.subplots library but this is what it prints:\nValueError: Trace type 'pie' is not compatible with subplot type 'xy'\nat grid position (2, 1)\nSee the docstring for the specs argument to plotly.subplots.make_subplots\nfor more information on subplot types","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":31,"Q_Id":71681256,"Users Score":0,"Answer":"Did you try using plotly.graph_objects.Pie?","Q_Score":0,"Tags":"plotly-python","A_Id":71795005,"CreationDate":"2022-03-30T16:58:00.000","Title":"Displaying two different chart types in a single browser (plotly with python)","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"How can I manipulate the volume of the audio loaded via pyglet.media.load?\nThe reason is that I have to repeat a sound repeatedly (eg bullets), but if I use the Player, the sound is queued to be able to play it and plays it only once using .play() (eg bullet = pyglet.media.load(\"bullet.wav\", streaming=False) audioPlayer = pyglet.media.Player() audioPlayer.queue(bullet) if the audioPlayer.play() command is used several times, for example from a key, it is executed only once and that's it)\nIf I don't use the Player, I can use the sound constantly, but at that point I can no longer manipulate the volume of the audio. (eg bullet = pyglet.media.load(\"bullet.wav\", streaming=False) bullet.play())\nSo how can I go about solving the problem? I don't have much experience using Pyglet audio, so I'm probably ignoring something I'm not aware of.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":23,"Q_Id":71697895,"Users Score":0,"Answer":"The audio player is the correct approach as you can set volume on the player.\naudioPlayer.volume = 0.5\nUnder the hood all the media.play() command does is create a Player instance, queue and play it. If you want to replay something, simply queue the source and play the player again. If you need audio overlaps, then you would create separate Player instances every time, like media.play() would.","Q_Score":0,"Tags":"python,pyglet,python-3.10","A_Id":71711638,"CreationDate":"2022-03-31T19:06:00.000","Title":"Manipulate the volume of a constantly repeating audio in Pyglet","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":1,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am very new to this and i have tried to look for the answer to this but unable to find any.\nI am using Selenium+chromedriver, trying to monitor some items I am interested in.\nExample:\na page with 20 items in a list.\nCode:\n#list of items on the page\nsearch_area = driver.find_elements_by_xpath(\"\/\/li[@data-testid='test']\")\nsearch_area[19].find_element_by_xpath(\"\/\/p[@class='sc-hKwDye name']\").text\n\nthis returns the name of item[0]\n\nsearch_area[19].find_element_by_css_selector('.name').text\n\nthis returns the name of item[19]\n\nwhy is xpath looking at the parent html?\nI want xpath to return the name of item within the WebElement \/list item. is it possible?","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":30,"Q_Id":71714931,"Users Score":0,"Answer":"found the answer, add a . in front\nhope this is gonna help someone new like me in the future.\nfrom\nsearch_area[19].find_element_by_xpath(\"\/\/p[@class='sc-hKwDye name']\").text\nto\nsearch_area[19].find_element_by_xpath(\".\/\/p[@class='sc-hKwDye name']\").text","Q_Score":0,"Tags":"python,selenium,xpath","A_Id":71715485,"CreationDate":"2022-04-02T04:40:00.000","Title":"xpath to check only within WebElement in Selenium \/ Python","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am very new to this and i have tried to look for the answer to this but unable to find any.\nI am using Selenium+chromedriver, trying to monitor some items I am interested in.\nExample:\na page with 20 items in a list.\nCode:\n#list of items on the page\nsearch_area = driver.find_elements_by_xpath(\"\/\/li[@data-testid='test']\")\nsearch_area[19].find_element_by_xpath(\"\/\/p[@class='sc-hKwDye name']\").text\n\nthis returns the name of item[0]\n\nsearch_area[19].find_element_by_css_selector('.name').text\n\nthis returns the name of item[19]\n\nwhy is xpath looking at the parent html?\nI want xpath to return the name of item within the WebElement \/list item. is it possible?","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":30,"Q_Id":71714931,"Users Score":0,"Answer":"What you are passing in find_element_by_xpath(\"\/\/p[@class='sc-hKwDye name']\") is relative Xpath. You can pass the full Xpath to get the desired result.","Q_Score":0,"Tags":"python,selenium,xpath","A_Id":71716673,"CreationDate":"2022-04-02T04:40:00.000","Title":"xpath to check only within WebElement in Selenium \/ Python","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to build a site that could take user input for a product details and export them into a couple of different CSV Set-ups depending on the site they go up on. Each site has small differences in title set-up or Shopify specific set up. The core product specifics stay constant:\nItem Name\nItem Brand\nMSRP\nCost\nColor\nSize\nI would like for the user(me) to only have to enter the core product data info once and have it return 8 different csv set-ups.\nI am good with HTML\/CSS and beginner in JavaScript. I want to grow on languages that would help me accomplish the above. What would be the best language to use to accomplish this sort of thing?\nConsidering that I would learn Python...","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":27,"Q_Id":71720792,"Users Score":0,"Answer":"It makes no difference for this type of work. All interpreted scripting languages offer the same level of support for simple tasks like this. You can throw a dart at PHP, Python, Ruby, C# or Javascript and all will end up being about the same. It is just you that matters here. Use what makes you happy. This is not something where there is a clear winner. If you want the most examples and paint by numbers, you can't do better than Ruby.","Q_Score":0,"Tags":"python,shopify,export-to-csv","A_Id":71721653,"CreationDate":"2022-04-02T20:00:00.000","Title":"Building a site that can export user input into a downloadable Shopify-CSV","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to load some assets onto my program that I have them in a folder called 'Graphics', which is inside the folder 'Snake', which is inside the folder 'Projects', which is inside the folder 'Python'. However, also inside that folder 'Python' is another folder named 'HelloWorld'.\nI am trying to load some assets in a program that I am running in 'Snake' and Python is searching for the assets in the 'HelloWorld' folder (which is where I used to keep my python files).\nI get the error:\nFileNotFoundError: No file 'Projects\/Snake\/Graphics\/apple.png' found in working directory 'C:\\Users\\35192\\OneDrive - WC\\Desktop\\Python\\HelloWorld'\nI believe that for this I have to change the default directory for vs code. I have changed the default directory for the command prompt and it did nothing. Perhaps this is because the python that I am running in the command prompt is different from the one in vs code (?)\nHow do I fix this?\nThank you in advance.\nEdit:\nThis is how I am currently loading the image:\napple = pygame.image.load('Projects\\Snake\\Graphics\\apple.png').convert_alpha()","AnswerCount":3,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":41,"Q_Id":71811330,"Users Score":0,"Answer":"You don't need to change the default directory. Just load from the full directory. That should look something like: \"C:\\Users\\...\\Python\\Snake\\Graphics\\apple.png\".","Q_Score":0,"Tags":"python,file,filenotfounderror","A_Id":71811455,"CreationDate":"2022-04-09T19:38:00.000","Title":"Python searching for image in wrong directory","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am currently trying to write a python script that will open my companies inventory system which is a link in google chrome, sign in, and then click the save as excel button that is posted on top of a specific page. This will hopefully automate the process of opening the link, navigating over to the tab, clicking export, then exporting this data daily.\nAny idea of where to start? I was thinking maybe can get this done using web scraping but not sure with the log in details needed. Also, how can I export this file once in? Just need some ideas to start me on this journey. Any and all help is appreciated!","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":22,"Q_Id":71829379,"Users Score":0,"Answer":"Simply start with selenium python automation\n\nDivide you whole process in smaller tasks and write python code\nfor that each task:)","Q_Score":0,"Tags":"python,html,web-scraping","A_Id":71829997,"CreationDate":"2022-04-11T14:15:00.000","Title":"Exporting Excel Data from Webpage","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Let's say I want to create a blueprint of an online store that I can sell to potential clients. However, the idea is to make it so that the client chooses features that they want their store to have (from a pre-designated list) and pay only for those features, that way avoiding paying for something they don't need.\nSo for example, one client wants to have and online store with a Cart, Purchase History, Graphs, Reports. Another one only wants simple registration and cart (but maybe in future they will want me to \"enable\" other features as well).\nMy question is: what, in your opinion, is the best way to tackle this problem from a Django developer perspective?\nMy thoughts:\n\nCreate every feature as a separate app and deploy the whole thing commenting out the features that client did not pay for. And when a client wants additional features, I simply go to settings.py and uncomment the app they requested. Can I even make changes on the settings.py file on a live website without restarting it?\nCreate an admin panel for myself (the superuser) that will have an ability to turn features on or off. So when the client pays for a new feature, I simply go to my admin panel and put a tick mark next to it, and voila! That way I don't have to make changes in settings.py file (and I don't need access to the hosting server, just the django admin panel). Thought I'm not sure how to do this programmatically. I think I need a separate Model with a lot of BooleanFields(?)\n\nWhat are pros and cons of each approach and what other ways to achieve this can you think of?\nEdit 1.\nTo clarify, this will not be a shopify-style service, but simply a website that I will create separately for each client. But I want to have a blueprint to quickly create one and add\/remove features on the fly.","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":30,"Q_Id":71831903,"Users Score":1,"Answer":"I would recommend the admin panel approach.  If you plan to launch a service online that many people can access to generate a store front, you don't want to push code changes for a simple thing like adding a feature.  That would get cumbersome and is not a good practice.  Also modifying the settings.py file would typically need to have the web service (i.e. Apache) restarted so the file is reinitialized.\nWith the admin panel approach, then all you have to do is look up a customer, see what features they have and check boxes.  You could make it more complex of course, especially if a new added feature is going to cost the customer more.  But simply, the admin approach is best, it gives you the flexibility and you don't have to be worried about potentially taking down the site with a code push.","Q_Score":0,"Tags":"python,django","A_Id":71833195,"CreationDate":"2022-04-11T17:23:00.000","Title":"Django. General design philosophy question: best way to implement \"toggleable\" separate features in a website","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a catalog of OBIEE reports which include many BI Publisher Reports. I want the SQL queries (and eventually the list of physical tables) used in the data models of all the BIP Reports in my catalog. I don't want to do it by manually going into each data model as there are hundreds of BIP reports. Is there a way to do that?\nRelated to that, we looking into analyzing all the XML files for the reports through a python script.Is there a way I can extract the SQL queries from a XML file with or without using a Python script?\nAny insight would be appreciated","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":132,"Q_Id":71839671,"Users Score":0,"Answer":"The BI Publisher base tables all start with XDO. You can query the ALL_OBJECTS table to list all the XDO tables.\nCheck XDO_DS_DEFINITIONS_B table for the data definitions.","Q_Score":0,"Tags":"python,xml,obiee,bi-publisher","A_Id":71849522,"CreationDate":"2022-04-12T08:48:00.000","Title":"Extracting SQL Queries of all Oracle BI Publisher Reports","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"How can I upgrade a jar file within a python package? I need to upgrade to the latest version of log4j within pyspark.\n\/Library\/Frameworks\/Python.framework\/Versions\/3.9\/lib\/python3.9\/site-packages\/pyspark\/jars\/log4j-1.2.17.jar\nI tried upgrading PySpark with the below since I have multiple Python versions installed. I am a novice with managing Python installations. Any pointers? Thanks.\npython3.9 -m pip install pyspark --upgrade\n(On MacOS)","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":54,"Q_Id":71846473,"Users Score":0,"Answer":"Currently, the latest version of pyspark (3.2.1 from 26th January 2022) ships with log4j-1.2.17.jar, i.e. it is directly bundled in the tar.gz that pip downloads and then extracts and installs. As such, it cannot be upgraded individually, i.e. there is no automated way.\nYou might be able to simply replace the .jar file manually, but I would suspect that you might run into issues when the API of the newer version is different than the 1.2.17 one. I would suspect that if a newer version was compatible, the devs of the package would probably have used it","Q_Score":0,"Tags":"python,pyspark,pip,jar,log4j","A_Id":71867787,"CreationDate":"2022-04-12T16:52:00.000","Title":"How upgrade a jar file dependency within the Python 3.9 PySpark package?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am getting the following error when I try to run the backend of my web application: ImportError: cannot import name 'run_with_reloader' from 'werkzeug.serving'. It is coming from within the \\lib\\site-packages\\werkzeug\\serving.py file. I think it has to do with the line from flask_socketio import SocketIO inside my server file. Any ideas?","AnswerCount":3,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":1373,"Q_Id":71850969,"Users Score":0,"Answer":"This error has been addressed, so you are very likely using an old version of Flask-SocketIO. Once you upgrade the error should go away.","Q_Score":5,"Tags":"python,flask-socketio,werkzeug","A_Id":71885802,"CreationDate":"2022-04-13T01:59:00.000","Title":"ImportError: cannot import name 'run_with_reloader' from 'werkzeug.serving'","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am getting the following error when I try to run the backend of my web application: ImportError: cannot import name 'run_with_reloader' from 'werkzeug.serving'. It is coming from within the \\lib\\site-packages\\werkzeug\\serving.py file. I think it has to do with the line from flask_socketio import SocketIO inside my server file. Any ideas?","AnswerCount":3,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":1373,"Q_Id":71850969,"Users Score":0,"Answer":"Solution is to install the following Werkzeug version (Werkzeug-0.10.2.dev0dev-20220510) along with the following versions: [Tested in MacOS]\npip3 install Flask-SocketIO==4.3.1\npip3 install python-engineio==3.13.2\npip3 install python-socketio==4.6.0\npip3 install git+https:\/\/github.com\/untitaker\/werkzeug.git@reloader-perf","Q_Score":5,"Tags":"python,flask-socketio,werkzeug","A_Id":72186325,"CreationDate":"2022-04-13T01:59:00.000","Title":"ImportError: cannot import name 'run_with_reloader' from 'werkzeug.serving'","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"with other projects I've developed I have been able to hit 'run' to launch my application, and then shift+F10 from then on.\nIt seems excessively cumbersome to have to launch the terminal and type python manage.py runserver every time I want to test something...\nIs there a better way? can I write a python file like run.py with some script that will launch the app, or some other solution?\nEdit:\nI worked out to add 'runserver' as an argument to the run config for manage.py.... is there a better way?\nI've searched for ages, and all I can find is a thousand tutorials telling me how to start a project, rather than how to launch it more easily.\nthanks","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":23,"Q_Id":71899153,"Users Score":0,"Answer":"it' so simple. i've been trying all manner of hacky approaches to make a script, but i finally found 'django server' in the run configurations, complete with a launch browser option.\nawesome.","Q_Score":0,"Tags":"python,django,pycharm","A_Id":71899191,"CreationDate":"2022-04-17T03:52:00.000","Title":"How to launch a Django project from within pycharm without using terminal?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am running a Istio setup where my python flask service running behind gunicorn.\nwhen debugging the logs from the service, the flask service successfully execute the api call while the calling client is receiving 503 error from the rest call. I suspect this might be some issue with side car proxy or gunicorn server where it is processing the request.\nAlso, I am hitting the service directly from another pod in the namespace and hence not going through ingress gateway and virtualservice","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":65,"Q_Id":71900310,"Users Score":0,"Answer":"In my case it was the SSL between Google Front End (ILB) and Istio service mesh. Somehow the connection between GFE and Istio gateway over TLS was not reliable. I converted that to HTTP from HTTP2(https) and it started working.\nI will debug later why this https between those 2 was not working but moving HTTP2 to HTTP solved my issue.","Q_Score":0,"Tags":"python,gunicorn,istio","A_Id":71993063,"CreationDate":"2022-04-17T08:15:00.000","Title":"Istio - Gunicorn - Python getting 503 upstream connect error or disconnect\/reset before headers. reset reason: connection failure","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have just learned python, and am beginning to make a web application using Django \/ DRF in the back end.\nThe back end would be similar to a CRUD, or just a CRUD actually, I'm not planning on doing too much processing on requests, but would be queuing jobs for another python script on the server to pick up when needed.\nThe API I'm building would need to manage a few different entities like Users, Packages, Transactions, Jobs etc, and I plan to manage all of these entities... no ... models... via a rest API.\nDo I create an app for each model ? e.g. user_app, package_app, and transaction_app ? or should I create a single app to manage them all?\nI'm torn between thinking of Django Apps as actual applications, or Bundles like in PHP\/Symfony","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":35,"Q_Id":71904964,"Users Score":0,"Answer":"There is no obligation to create a new app for every feature that depends on another part of the project logic.\nBut overall the more you divide into,  the easier it will be in the future.\nwhen the project updated and new features added it will be easy to manage it.\nAlso take a look at some open source projects.","Q_Score":0,"Tags":"python,django-rest-framework","A_Id":71905250,"CreationDate":"2022-04-17T19:50:00.000","Title":"Should I create Apps for each Model in my django app?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I know that Batch processing relies on collection of data, Stream processing relies on continuous data.\nPlease, explain me in simply words, why Apache Airflow is not a data streaming solution, but a batch processing.","AnswerCount":1,"Available Count":1,"Score":0.3799489623,"is_accepted":false,"ViewCount":53,"Q_Id":71909751,"Users Score":2,"Answer":"Airflow is not a data processing solution at all: stream or batch. Airflow is a \"platform to programmatically author, schedule and monitor workflows\"\nIf you want to build data processing workflow, you should delegate all calculations to data processing tools, such as Apache Spark. So, Airflow does not have its own limitations (as well as opportunities) to process data in streaming or batching ways\nBut you may notice that streaming workflows are more difficult to coordinate with Airflow. Workflows in Airflow are written as directed graphs: after one statement completes, execution moves to the next. In the case of stream processing, there is no moment of \"completion\": all processes works continuously and parallel\nSummarizing. You can use Airflow to \"coordinate\" stream processing, but you won't get any benefit from using it","Q_Score":0,"Tags":"python,airflow,airflow-scheduler,airflow-2.x","A_Id":71954837,"CreationDate":"2022-04-18T09:07:00.000","Title":"Why Apache Airflow is not a data streaming solution","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"Traceback (most recent call last):\nFile \"D:\\Miniconda3\\envs\\ppy39\\lib\\site-packages\\flask\\app.py\", line 2073, in wsgi_app\nresponse = self.full_dispatch_request()\nFile \"D:\\Miniconda3\\envs\\ppy39\\lib\\site-packages\\flask\\app.py\", line 1518, in full_dispatch_request\nrv = self.handle_user_exception(e)\nFile \"D:\\Miniconda3\\envs\\ppy39\\lib\\site-packages\\flask\\app.py\", line 1516, in full_dispatch_request\nrv = self.dispatch_request()\nFile \"D:\\Miniconda3\\envs\\ppy39\\lib\\site-packages\\flask\\app.py\", line 1502, in dispatch_request\nreturn self.ensure_sync(self.view_functions[rule.endpoint])(**req.view_args)\nFile \"C:\\Users\\admin\\Desktop\\VScode\\WorkProjects\\2022\\Product_Classification\\retention_ml.py\", line 169, in output_result\nresult_28 = xgboost_reg_281.predict(data[col_reg_28])\nFile \"D:\\Miniconda3\\envs\\ppy39\\lib\\site-packages\\xgboost\\sklearn.py\", line 1047, in predict\nif self._can_use_inplace_predict():\nFile \"D:\\Miniconda3\\envs\\ppy39\\lib\\site-packages\\xgboost\\sklearn.py\", line 983, in _can_use_inplace_predict\npredictor = self.get_params().get(\"predictor\", None)\nFile \"D:\\Miniconda3\\envs\\ppy39\\lib\\site-packages\\xgboost\\sklearn.py\", line 636, in get_params\nparams.update(cp.class.get_params(cp, deep))\nFile \"D:\\Miniconda3\\envs\\ppy39\\lib\\site-packages\\xgboost\\sklearn.py\", line 633, in get_params\nparams = super().get_params(deep)\nFile \"D:\\Miniconda3\\envs\\ppy39\\lib\\site-packages\\sklearn\\base.py\", line 205, in get_params\nvalue = getattr(self, key)\nAttributeError: 'XGBModel' object has no attribute 'callbacks'","AnswerCount":2,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":1159,"Q_Id":71912084,"Users Score":2,"Answer":"Check your xgboost library version. I loaded a model saved from xgboost==1.5.0 env to a xgboost==1.6.0 env and got the same error when operating on the model. I downgraded xgboost to 1.5.0 and everything worked fine. I suspect the model saving format is changing since 1.6.0 as it gives warning about me loading a binary model file using pickle dump.","Q_Score":1,"Tags":"python,flask,scikit-learn,xgboost","A_Id":71920893,"CreationDate":"2022-04-18T12:54:00.000","Title":"AttributeError: 'XGBModel' object has no attribute 'callbacks'","Data Science and Machine Learning":1,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm getting an error \"Unable to determine handler from trigger event\" when hitting an AWS API Gateway endpoint. The endpoint triggers a lambda, which is using FastAPI and Mangum.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":60,"Q_Id":71920070,"Users Score":0,"Answer":"Lambda integration in the GET method on API Gateway needs to have \"Use Lambda Proxy integration\" ticked on.","Q_Score":0,"Tags":"python,aws-api-gateway,fastapi","A_Id":71920071,"CreationDate":"2022-04-19T05:27:00.000","Title":"Mangum \"Unable to determine handler from trigger event\"","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Is there any application(s) or possibilities that could let me work on one Python file on my PC and phone? I mean situation when I'm doing something on PC, save it, close PC, but in a middle of night I have some thought, so I don't have to open PC, but just try it on phone instead.\nI guess there's a possibility with uploading it to some server after each usage, but doing it sometimes even few times per day would be a nightmare.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":27,"Q_Id":71929724,"Users Score":1,"Answer":"Create a Git account (Github, Gitlab, Bitbucket, etc). Push your code there. Pull it to many devices where you can edit and re-push back.\nThis is not specific to Python.\nIf you want to deploy the Python code to always run the latest changes you've made, then you can setup CI\/CD actions from those sites.","Q_Score":0,"Tags":"python","A_Id":71929767,"CreationDate":"2022-04-19T18:35:00.000","Title":"One project on Windows and Android - Python","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a Django project which my Clients want to run on their server but I do not want them to have access or be able to read my code.\nI have looked at several blogs on internet but I could not find a solution to securely hide my code or encrypt them for non readability.\nI have tried creating binaries and also encrypting my .py files but it did not work.\nIs there a way to achieve this?","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":46,"Q_Id":71934220,"Users Score":1,"Answer":"no... you cannot protect your code once it is on a machine that they have access to.\nyou can make it (marginally) harder by converting all your pyfiles to pyc and putting it in a debian package or something(you can use tools like pyinstaller to help with this) ...\nbut if they are determined they can get it ... all that other stuff is more likely to make your life a pain in the ass, than to solve whatever problem you might think your solving\nperhaps a good question is why do you care if they can see the source if they paid you for it? surely if they hired you to do it in the first place, they are not technical enough to solve most issues without assistance as well. even if its a pretty simple site\nanother option is to just tell them no and host it on your server anyway","Q_Score":0,"Tags":"python,django,security,encryption","A_Id":71934260,"CreationDate":"2022-04-20T04:46:00.000","Title":"How to securely deploy a Django project on client machine server without code visibility?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"How can I quickly download audio from YouTube by URL or ID and send it to Telegram bot? I've been using youtube-dl to download audio, save it on hosting and after that send it to user. It takes 1-2 minutes to do that. But other bots (like this one @LyBot) do this with the speed of light. How do they do this?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":45,"Q_Id":71950060,"Users Score":2,"Answer":"As it says in their documentation \"I send audio instantly if it has already been downloaded through me earlier. Otherwise, the download usually takes no more than 10 seconds.\"\nThey probably store a file the first time its downloaded by any user so that it can be served instantly for subsequent requests.","Q_Score":1,"Tags":"python,youtube,telegram,telegram-bot","A_Id":71950107,"CreationDate":"2022-04-21T06:51:00.000","Title":"How can I quickly download and send audio from youtube?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have developed a django REST API. I send request\/data to it to perfrom a task and it does it nicely. Though, In a way, I can send it multiple request\/data to perfrom the task on each of them. The issue is that server where the task gets performed has limited memory and I need to perform these task one by one. So, I am thinking to have a queue system at django pipeline which can maintain the reqeust on hold till the task in front of the queue is done.\nI am not sure if I am on right path, but not sure if celery is the option to solve my issue?\nIt seems a simple task and I didnt understand if celery is what i need. Can you point me what should be looking at?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":49,"Q_Id":71955552,"Users Score":0,"Answer":"If you want to keep your API as is, then celery will not help you. It's a good idea to keep API calls as short as possible. If you have some longer job done during API calls (sending emails, for example), then you better use celery. But the only thing you can get as a response to your API is that the task was queued.","Q_Score":0,"Tags":"python,django","A_Id":71955639,"CreationDate":"2022-04-21T13:43:00.000","Title":"Queue in django\/python","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I have python code that depends on specific libraries like selenium and interaction with google chrome to extract data from the web.\nmy code works fine but i need a lot of records to do analysis, so i can't leave my computer on, to run the script for a month.\nThat's why I thought of running the script in a cloud service like aws but I don't have a clear idea of \u200b\u200bhow to do it, because I need the script to not stop\nand I would rather not have to pay for it (or at least not that much money)\nThat said, my code opens a website, looks for a specific text data and saves it in a csv document.\nI thank you in advance for the help","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":27,"Q_Id":71998750,"Users Score":1,"Answer":"You will have to check the terms of each cloud service as many do have downtime\/restarts on their free tiers.\nThe kind of task you're describing shouldn't be very resource hungry, so you may be better off setting up your own server using a Raspberry Pi or similar.","Q_Score":0,"Tags":"python,selenium,web-scraping,automation,cloud","A_Id":71998861,"CreationDate":"2022-04-25T11:23:00.000","Title":"Run pythom code in cloud without stopping","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Searching for solution:\n\npipenv install django\npipenv shell\ndjango-admin startproject test .\npython manage.py runserver\n\nResult:\nModuleNotFoundError: No module named 'django'\nIt is working with:\npipenv run python manage.py runserver\nBut it worked before without pipenv run\nWhat's the case? Already reinstalled pipenv, cleared --lock, removed virtualenvs from .local folder, still same error when running python manage.py runserver inside project.","AnswerCount":1,"Available Count":1,"Score":0.3799489623,"is_accepted":false,"ViewCount":32,"Q_Id":72006436,"Users Score":2,"Answer":"Found solution.. I updated python yesterday so my alias was wrong need to realias it again. btw. to all having same problem python3 manage.py runserver solved my issue.","Q_Score":2,"Tags":"python,django,pipenv","A_Id":72006608,"CreationDate":"2022-04-25T22:41:00.000","Title":"Pipenv ModuleNotFoundError","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to find a button on a website, however this button won't always be there and there are multiple buttons that are identical in everyway. The xpath of the buttons is :\n\/\/*[@id=\"inspire\"]\/div[3]\/main\/div\/div\/div[3]\/div[i]\/div\/div\/div[2]\/button\/div\nWhere i is the i'th button. To find the correct button however I have to check the text in the first element (\/div[1]) of the '\/div' list before the '\/button\/ (where you can see '\/div[2]'. This text is specific per button. And I have a specific string I'm looking for in these div[1]'s and I only need the button above which is this specific string.\n(I have already checked the string is indeed on the page so  the button does exist everytime I get to this step. I just need to find the button that is underneath it.)\nThanks in advance!","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":27,"Q_Id":72012670,"Users Score":0,"Answer":"You can use elems =elem.find_elements_by_id(\"id\" )\nThen use loop to seperate all elements that have same locator .","Q_Score":0,"Tags":"python,selenium,findelement","A_Id":72012790,"CreationDate":"2022-04-26T10:50:00.000","Title":"Finding identical buttons with selenium python","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I used pip install fastapi to download it in my virtual environment, in terminal but when I try to import from it it shows up as a missing import.","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":83,"Q_Id":72019083,"Users Score":0,"Answer":"If you want to install a package into your specific virtual environment, you need to first \"activate\" that environment. Likewise, if you want to run your script in that environment, you need to first \"activate\" it. You can do this manually but preferably let VSCode handle it for you.\nIn order to tell VSCode(especially the language server which is pylance) to use that environment:\n\nOpen up your command pallets and type : \"python: select interpreter\".\nSelect your newly created python interpreter inside your venv.\nadd \"python.terminal.activateEnvironment\": true to your setting.json file. This will automatically activate your venv whenever you open your integrated terminal.","Q_Score":0,"Tags":"python,visual-studio-code,import,fastapi,pylance","A_Id":72019181,"CreationDate":"2022-04-26T18:50:00.000","Title":"how do I solve the Pylance(reportMissingImports)?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a Django website in production and a while back I successfully hosted my static files using Whitenoise so I could use them in production. Now a few months later I want to add a new .png along with a bunch of other code and push it to production. I added the .png I wanted into my static files then deleted my 'staticfiles' folder in my code and reran python manage.py collectstatic. The files all collected like normal but when I ran my local server the page is no longer hosting that new .png using whitenoise. All the other static files that were hosting successfully before are STILL hosting fine now and being hosted by whitenoise. Its just the new one that is not being hosted through whitenoise. I checked the 'static files' folder and the new .png is in there fine with a copy of itself and additional characters added to its name like whitenoise usually does and like how all the other files are that are being successfully hosted.\nHow do I update\/refresh Whitenoise to acknowledge a new static file added?\nThanks!","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":24,"Q_Id":72036538,"Users Score":0,"Answer":"I figured it out. I had the file named \".PNG\" and it needed to be \".png\". Small mistake but I finally tracked it down.","Q_Score":0,"Tags":"python,django,django-staticfiles,whitenoise","A_Id":72223165,"CreationDate":"2022-04-28T00:08:00.000","Title":"Static File Hosting, WhiteNoise not Updating - Django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I wrote a Python script which writes its output into a txt file.\nThen I included that file in my html\/php website. - works good so far.\nOnly remaining problem: I can't execute the .py file automatically while opening the site.\nI know that this isn't the best solution\n<?PHP exec(\"python3 Auswertung.py\"); ?> doesn't seem to work","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":25,"Q_Id":72046706,"Users Score":1,"Answer":"I used the commands chown -R www-data:www-data <directory> and chmod -R 755 <directory>. I'm not sure which command solved my problem, but at least its working.","Q_Score":0,"Tags":"python,php,sql,web,execute","A_Id":72047249,"CreationDate":"2022-04-28T15:47:00.000","Title":"executing .py in html\/php","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a question, how do I refresh the page where I am currently in django? I am new with all this, add a favorite button, but I am doing a redirect to a page, it is wrong, since I only need the page where I am currently to be refreshed, could someone help me?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":30,"Q_Id":72089883,"Users Score":0,"Answer":"greeted, I just had to do a redirect to a request.META.get['HTTP_REFERER']","Q_Score":0,"Tags":"python,django","A_Id":72104224,"CreationDate":"2022-05-02T16:54:00.000","Title":"refresh web in django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"When I execute this print(type(boto3.resource(\"s3\")) == type(boto3.resource(\"s3\")))\nI'm getting False. Is it possible type() __eq__ to be overwrite. Does anyone can explain why I'm getting False","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":25,"Q_Id":72104543,"Users Score":0,"Answer":"You're trying to print type of boto3.resource(\"s3\"), but it has no type so it gives you false. for example if you give type('a') it will give you string same way boto3.resource(\"s3\") is used to connect to aws services. which does not have any type according to my knowledge.","Q_Score":0,"Tags":"python,types,boto3","A_Id":72125120,"CreationDate":"2022-05-03T19:27:00.000","Title":"Comparing types boto3 (python)","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a selection field on a model called hr.overtime.rule like this:\nbuttons = fields.Selection([('per_day', 'Per Day'), ('monthly', 'Monthly')])\nNow I have another model which, based on selected value it should do some computations. The logic is that when it is per_day it should do different computations and when in monthly it should do again different computations and that's why I need to check with an if statement whether is per_day or monthly.\nWhat have I tried:\n\nImported the class to my current working python code: from .hr_attendance_policy import hr_overtime_rule  then I checked the value like this: value = hr_overtime_rule.buttons. It works to an extended way, it is just stuck at only one value: monthly\n\nMade a Many2one relation field: button_id = fields.Many2one('hr.overtime.rule')\nit works if you do if not or if but I specifically want either per_day or monthly\n\n\nThanks for your time fellas! I'd really appreciate your thoughts into this.","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":66,"Q_Id":72110176,"Users Score":0,"Answer":"In order to get the value of selected field you can also do this:\n\nFind a relation of your current working model and the other model.\nAfter finding the relation(or just create one) you can access it with a related field\nThe syntax should be smth like this: var = fields.Many2one('your.model') and then var2 = fields.Selection(related='var.technical_name')\n\nand after doing so, you can check it with if statements","Q_Score":0,"Tags":"python,selection,odoo-12","A_Id":72113771,"CreationDate":"2022-05-04T08:45:00.000","Title":"How do I get selection field value in odoo?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to implement the Cognito Hosted UI for some users in my Django application.\nI have successfully been able to redirect the users to the desired url for authentication using the following:\nreturn redirect(https:\/\/....amazoncognito.com\/oauth2\/authorize?client_id=....redirect_uri=localhost).\nI am able to successfully authenticate and redirect back to my localhost where the url in the browser is localhost\/?code=xyz. I do not understand how I can retrieve this code xyz back in python to perform next steps? I see that in the Django Terminal that it reads the required code. This is what the terminal shows:\n[04\/May\/2022 16:08:15] \"POST \/login HTTP\/1.1\" 302 0\n[04\/May\/2022 12:09:04] \"GET \/?code=xyz HTTP\/1.1\" 200 8737\nI just do not know how to get this code xyz in my views.py so that I can continue the login. I tried variations of request.GET that did not work.\nAny help is appreciated!!","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":18,"Q_Id":72119094,"Users Score":0,"Answer":"I just figured it out 5 days later (what 5 days of not looking at your code can do!)\nrequest.GET.get(\u2018code\u2019) gives back the 'xyz' that shows up in the url in the browser.","Q_Score":2,"Tags":"python,django,authentication,amazon-cognito","A_Id":72190667,"CreationDate":"2022-05-04T20:25:00.000","Title":"How to get the code returned by Cognito Hosted UI Autentication in Django?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to edit some docs on github, here are my instructions:\n\nClone the repo\nCreate a virtual environment\nInstall dependencies\nStart a local server\n\nI am able to 1 and 2 no problem, and 3 installs: mkdocs and mkdocs-material\nI run into an issue on #4 with an error:\n\"ERROR    -  Config value: 'pages'. Error: The configuration option 'pages' was removed from MkDocs. Use 'nav' instead.\nAborted with 1 Configuration Errors!\"\nThe MkDocs website does state this:\n\"Breaking change: the pages config option that was deprecated for a very long time now causes an error when used (#2652)\nTo fix the error, just change from pages to nav.\"\nI am not a dev, so not sure what changing pages to nav means. There are some files named pages, but changing to nav would be nav(2).\nHow would I fix this?\nTIA!","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":37,"Q_Id":72120181,"Users Score":0,"Answer":"So MkDocs no longer supports the 'pages' tag on generating the site. The replacement for it is called 'nav'.\nSo all you have to do generally is replace 'pages' in your mkdocs with 'nav' and that should fix it","Q_Score":0,"Tags":"python-3.x,windows,mkdocs","A_Id":72137941,"CreationDate":"2022-05-04T22:42:00.000","Title":"Error when starting a local server on Mkdocs Windows, how do I fix?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a single django instance about to hit its limits in terms of throughput. Id like to make a second instance and start scaling horizontally.\nI understand when dealing with database read replicas there is some minimal django configuration necessary, but in the instance of only using a single database: is there anything I need to do, or anything I should be careful of when adding a second instance?\nFor the record, I use render.com (it\u2019s similar to heroku) and their scaling solution just gives us a slider and will automatically move an instance up or down. Is there any sort of configuration I need to do with django + gunicorn + uvicorn? It will automatically sit behind their load balancer as well.\nFor reference my stack is:\n\nDjango + DRF\nPostgres\nRedis for cache and broker\nDjango-q for async\nCloudflare","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":36,"Q_Id":72134348,"Users Score":1,"Answer":"You can enable autoscaling on Render and it will automatically scale your instances up (and down) based on your application's average CPU and\/or memory utilization across all instances. You do not need to change your Django app.","Q_Score":1,"Tags":"python,django","A_Id":72134830,"CreationDate":"2022-05-05T22:44:00.000","Title":"Django: Horizontal scaling with a single database","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to run superset locally. after installing i got this error.\nsuperset run -p 8088 --with-threads --reload --debugger\nUsage: superset [OPTIONS] COMMAND [ARGS]...\nError: Could not locate a Flask application. You did not provide the \"FLASK_APP\" environment variable, and a \"wsgi.py\" or \"app.py\" module was not found in the current directory.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":108,"Q_Id":72140507,"Users Score":0,"Answer":"step 1:\nset FLASK_APP=superset\nsuperset fab create-admin\nstep 2: Load some data to play with\nsuperset load_examples\nstep 3: Create default roles and permissions\nsuperset init\nstep 4: To start a development web server on port 8088\nsuperset run -p 8088 --with-threads --reload --debugger","Q_Score":0,"Tags":"python-3.x,flask-login","A_Id":72296837,"CreationDate":"2022-05-06T11:08:00.000","Title":"Issue in running Apache Superset","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"TLDR\nI am making a REST Session management solution for industrial automation purposes and need to automatically log into devices to perform configurations.\nNOTE:\nThese devices are 99% of the time going to be isolated to private networks\/VPNs (i.e., Will not have a public IP)\nDilemma\nI am being tasked with creating a service that can store hardware device credentials so automated configurations (& metrics scraping) can be done. The hardware in question only allows REST Session logins via a POST method where the user and (unencrypted) password are sent in the message body. This returns a Session cookie that my service then stores (in memory).\nThe service in question consists of:\n\nLinux (Ubuntu 20.04) server\nFastAPI python backend\nSQLITE3 embedded file DB\n\nStoring Credentials?\nMy background is not in Security so this is all very new to me but it seems that I should prefer storing a hash (e.g., bcrypt) of my password in my DB for future verification however there will not be any future verification as this is all automated.\nThis brings me to what seems like is the only solution - hashing the password and using that as the salt to encrypt the password, then storing the hashed password in the DB for decryption purposes later. I know this provides almost 0 security given the DB is compromised but I am at a loss for alternate solutions. Given the DB is embedded, maybe there is some added assurance that the server itself would have to be compromised before the DB itself is compromised? I don't know if there is a technical \"right\" approach to this, maybe not, however if anyone has any advice I am all ears.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":26,"Q_Id":72154730,"Users Score":0,"Answer":"You should consider using a hardware security module (HSM). There are cloud alternatives (like AWS Secrets manager, an encrypted secrets repository based on keys stored in an actual HSM, AWS KMS). Or if your app is not hosted in a public cloud, you can consider buying an actual HSM too, but that's expensive. So it all comes down to the risk you want to accept vs the cost.\nYou can also consider building architecture to properly protect your secrets. If you build a secure secrets store service and apply appropriate protection (which would be too broad to describe for an answer here), you can at least provide auditing of secret usage, you can implement access control, you can easily revoke secrets, you can monitor usage patterns in that component and so on. Basically your secrets service would act like a very well protected \"HSM\", albeit it might not involve specialized hardware at all. This would not guarantee that secrets (secret encryption keys, typically) cannot ever be retrieved from the service like a real HSM would, but it would have many of the benefits as described above.\nHowever, do note that applying appropriate protection is the key there - and that's not straightforward at all. One approach that you can take is model your potential attackers, list ways (attack paths) for compromising different aspects of different components, and then design protections against those, as long as it makes sense financially.","Q_Score":0,"Tags":"python,database,sqlite,security,microservices","A_Id":72163403,"CreationDate":"2022-05-07T17:07:00.000","Title":"Storing decryptable passwords for automatied usage","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"what is the maximum limit of entities we can have in a spacy or bert based custom NER models ? I have seen examples over the web which have been trained to a max of 10 custom entities per model and even the Ontonotes data set has 18 entities, so does having certain number of entities in a NER model can impact the model learning abilities and performance ?","AnswerCount":1,"Available Count":1,"Score":0.3799489623,"is_accepted":false,"ViewCount":24,"Q_Id":72162213,"Users Score":2,"Answer":"I don't think there is a certain limit but increasing of number of classes would definitely effect the learning in a negative way. You can train a model with a 50 classes but the learning performance is depends on how your your dataset represent each class (is there a class imbalance problem etc. ) and whether your classes are distinguishable from each other easily or not.","Q_Score":1,"Tags":"python,machine-learning,spacy,bert-language-model,flair","A_Id":72162381,"CreationDate":"2022-05-08T14:56:00.000","Title":"what is the max limit of entities in a custom NER model","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"So, I've been trying to activate my virtual environment in VScode so I could open my Django manage.py and run the server, but for some reason it doesn't seem to activate in my bash terminal. And after running it, I get a \"did you forget to activate your virtual environment?\". What am I missing here?","AnswerCount":2,"Available Count":2,"Score":0.0996679946,"is_accepted":false,"ViewCount":25,"Q_Id":72177620,"Users Score":1,"Answer":"In the env folder, there should be an \"activate.bat\" script, that you can execute to activate your venv.","Q_Score":0,"Tags":"python-3.x,django,windows,visual-studio-code","A_Id":72177651,"CreationDate":"2022-05-09T20:02:00.000","Title":"Setting up and activating virtual environment","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"So, I've been trying to activate my virtual environment in VScode so I could open my Django manage.py and run the server, but for some reason it doesn't seem to activate in my bash terminal. And after running it, I get a \"did you forget to activate your virtual environment?\". What am I missing here?","AnswerCount":2,"Available Count":2,"Score":0.0996679946,"is_accepted":false,"ViewCount":25,"Q_Id":72177620,"Users Score":1,"Answer":"I think you should open bash in the existing directory and run Scripts\\activate\nI'd also like to confirm which of the virtual environment you are making use of.","Q_Score":0,"Tags":"python-3.x,django,windows,visual-studio-code","A_Id":72178614,"CreationDate":"2022-05-09T20:02:00.000","Title":"Setting up and activating virtual environment","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"Maybe this is to trivial question, but please assist me. How can I create folder and subfolder in it with django python. When I google I just get some information about folder structure, but it is not what I am looking for. Please share some code examples if it is possible\nMany thanks.","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":29,"Q_Id":72205833,"Users Score":0,"Answer":"why don't look up for how to create folders and subfolders with python using the subprocess or os ?\nthe ok command (linux and macos) is mkdir -p \/path\/you\/want","Q_Score":0,"Tags":"python,django","A_Id":72205885,"CreationDate":"2022-05-11T18:17:00.000","Title":"Create folder and subfolder with django app","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Many answers about using the Youtube Data API v3 to get the thumbnail of a playlist; and many answers for how to get or set the thumbnail of a video.\nBut none about how to set the thumbnail of a playlist. The documentation shows nothing and no searches into the API documentation or Stack Overflow find the question or its answers.\nI tried using the thumbnails().set() method for setting thumbnails to videos, but that returns a permission denied error indicating that using playlist IDs in its request for video IDs is not a good monkey patch.\nPlease help.","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":36,"Q_Id":72230074,"Users Score":0,"Answer":"My original question is invalid.\nYouTube allows users to set thumbnails of videos to be any properly formatted image. YouTube then only allows users to set a specific video thumbnail as the playlist thumbnail. It is not possible to set an image as the thumbnail of the playlist unless it is a thumbnail of a video in that playlist; and in that use case the video is associated to the playlist for the representative thumbnail.","Q_Score":1,"Tags":"youtube-api,youtube-data-api,google-api-python-client","A_Id":72244432,"CreationDate":"2022-05-13T13:04:00.000","Title":"Q: set thumbnail of a playlist?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Suppose I wrote a docker-compose.dev.yml file to set the development environment of a Flask project (web application) using Docker. In docker-compose.dev.yml I have set up two services, one for the database and one to run the Flask application in debug mode (which allows me to do hot changes without having to recreate\/restart the containers). This allows everyone on the development team to use the same development environment very easily. However, there is a problem: it is evident that while developing an application it is necessary to install libraries, as well as to list them in the requirements.txt file (in the case of Python). For this I only see two alternatives using a Docker development environment:\n\nEnter the console of the container where the Flask application is running and use the pip install ... and pip freeze > requirements.txt commands.\nManually write the dependencies to the requirements.txt file and rebuild the containers.\n\nThe first option is a bit laborious, while the second is a bit \"dirty\". Is there any more suitable option than the two mentioned alternatives?\nEdit: I don't know if I'm asking something that doesn't make sense, but I'd appreciate if someone could give me some guidance on what I'm trying to accomplish.","AnswerCount":4,"Available Count":2,"Score":0.049958375,"is_accepted":false,"ViewCount":239,"Q_Id":72236497,"Users Score":1,"Answer":"Install requirements in a virtualenv inside the container in an externally mounted volume. Note that the virtualenv creation and installation should happen in container run time, NOT in image building time (because there is no mounted volume).\nAssuming you are already mounting (not copying!) your project sources, you can keep it in a .\/.venv folder, which is a rather standard procedure.\nThen you work just as you would locally: issue the install once when setting up the project for the first time, requirements need not be reinstalled unless requirements change, you can keep the venv even if the container is rebuilt, restarting the app does not reinstall the requirements every time, etc, etc.\nJust don't exepect the virtualenv to be usable outside the container, e.g. by your IDE (but a bit of hacking with the site module would let you share the site-packages with a virtualenv for your machine)\n\nThis is a very different approach to how requirements are usually managed in production docker images, where sources and requirements are copied and installed in image building time. So you'll probably need two very different Dockerfiles for production deployment and for local development, just as you already have different docker-compose.yml files.\nBut, if you wanted them both to be more similar, remember there is no harm on also using a virtualenv inside the production docker image, despite the trend of not doing so.","Q_Score":2,"Tags":"python,docker,flask,docker-compose,requirements.txt","A_Id":72314260,"CreationDate":"2022-05-14T00:28:00.000","Title":"How to deal with Python's requirements.txt while using a Docker development environment?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"Suppose I wrote a docker-compose.dev.yml file to set the development environment of a Flask project (web application) using Docker. In docker-compose.dev.yml I have set up two services, one for the database and one to run the Flask application in debug mode (which allows me to do hot changes without having to recreate\/restart the containers). This allows everyone on the development team to use the same development environment very easily. However, there is a problem: it is evident that while developing an application it is necessary to install libraries, as well as to list them in the requirements.txt file (in the case of Python). For this I only see two alternatives using a Docker development environment:\n\nEnter the console of the container where the Flask application is running and use the pip install ... and pip freeze > requirements.txt commands.\nManually write the dependencies to the requirements.txt file and rebuild the containers.\n\nThe first option is a bit laborious, while the second is a bit \"dirty\". Is there any more suitable option than the two mentioned alternatives?\nEdit: I don't know if I'm asking something that doesn't make sense, but I'd appreciate if someone could give me some guidance on what I'm trying to accomplish.","AnswerCount":4,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":239,"Q_Id":72236497,"Users Score":0,"Answer":"The second option is generally used in python environments. You just add new packages to requirements.txt and restart the container, which has a line with pip install -r requirements.txt in its dockerfile that do the installing.","Q_Score":2,"Tags":"python,docker,flask,docker-compose,requirements.txt","A_Id":72294372,"CreationDate":"2022-05-14T00:28:00.000","Title":"How to deal with Python's requirements.txt while using a Docker development environment?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I am doing a little project where i have prepared the back end in python and the graphic user interface woth HTML, CSS & JS.\nThe python script doesn't require any external librariesand the only thing that it does is opening a JSON file with the data processed, since it's a game the results are casually generated, and because of this I don't have to pass any parameters to the script.\nThe problem is that I don't know how to trigger the script so it generates the json that i can access trough JabaScript.\nthe scheme of the project is this:\nindex.html\npages (folder)\n\nnewGame.html\nloadGame.html\nrules.html\n\npython (folder)\n\npython_script1.py\npython_script2.py\npython_script3.py\nmain.py\n\nspecifically i have to trigger the script once the user has loaded the newGame page or the loadGame one.\n(obiuvsly the js isn't node.js is actual client-side JavaScript)\nI obiuvsly did some research and i found the pyodyde open source project does what i want, the fact is that i can't figure out how to connect the interface file with the back-end one with this resource.","AnswerCount":3,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":58,"Q_Id":72243590,"Users Score":0,"Answer":"But than, once i typed in the command and created the html file from the python script, how do I connect it to the \"newLevel\" page?","Q_Score":0,"Tags":"javascript,python,browser,client-side","A_Id":72246099,"CreationDate":"2022-05-14T20:16:00.000","Title":"Trigger A Python Script By Using JavaScript","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to link 2 web pages made using streamlit and hosted using Heroku. One of them removes the image background and the other does an image classification task. (They could not be made into one due to slug size limits of Heroku). At present, the user has to manually download the segmented image from one webpage and upload it to the second webpage.\nThe 2 can be shown together using an HTML iframe tag but I am not able to figure out how to transfer the segmented image from one webpage to other.\nAny suggestion or help will be appreciated\nAlso please prefer solutions using python and its frameworks as the whole project is in python and learning javascript, HTTP, etc will take some time.\n(but if it's not possible using python, answers using other methods will also be welcome)","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":73,"Q_Id":72254128,"Users Score":0,"Answer":"One of my seniors advised me to explore other hosting options. (I had seen an online tutorial using Heroku , and did not know much about others). It turns out that streamlit cloud provides a much larger slug size and allows you to host it for free if you open source your project(I had no issue doing so), so I have combined the two parts and am now hosting using streamlit cloud.","Q_Score":0,"Tags":"python,heroku,image-processing,web-hosting,streamlit","A_Id":72294145,"CreationDate":"2022-05-16T04:24:00.000","Title":"Is there any way to share images between two streamlit webapps?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"*This post has been edited to reflect suggestions relating to question clarity and intent\n*I have conceptualized a solution to this problem, and I am currently developing the code. I will update this post when the solution is complete. This comment will be removed when I post my solution.\nMy goal is to implement a modular framework that meets the following requirements:\n\nThere is a single instance that manages all of the modular components; I will refer to it as the Engine, and the modular components as Models. The Engine must provide the following services:\n\nDirect information to each Models subscribed functions; I will refer to these as callbacks.\nRun functions belonging to an instance of a Model, if the model has requested that the function be run; I will refer to these as updates.\n\n\nA Model can be defined and instantiated without an Engine. The Model has no dependencies on the Engine (although without an Engine, the model is mostly useless).\n\nThere should be some attribute applied to each callback and update in a Model so that, when added to the Engine, the Engine can determine the purpose of each function in the Model.\n\nEach update is defined with update criteria, consisting of Boolean logic and a priority. An update will only run successfully if the update criteria are True. If the update criteria are False, the update will raise an Exception\n\nupdates are called by the Engine, highest priority first.\n\nInformation can only be passed to an Engine by returning a value in a update. Information passed to the Engine is distributed immediately to callbacks.\n\nEach callback is defined with a topic. The callback will only be called by the Engine, if the information topic matches the callback topic.\n\n\nIt is my current understanding that decorators would be effective in implementing the desired behavior. I think we could do the following:\n\nCreate a decorator named callback, that takes a parameter tag which is set as an attribute on the decorated function. tag denotes the type of information that the function should receive.\nCreate a decorator named 'update', that takes parameters logic and priority which are set as attributes on the decorated function. logic is a callable that returns a Boolean. priority denotes the priority of the function.\n\nUsing decorators would allow me to define Models without Engine dependency. The Engine can utilize inspect to get functions in each Model that have the relevant attributes.\nAfter implementing various attempts, I have the following concerns:\n\nDecorators are applied at instantiation, and as a result cannot accept self as an argument.","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":54,"Q_Id":72264519,"Users Score":0,"Answer":"Seems that your Model is nothing but a set of some Callbacks, somehow tagged, with the only intention to be called by the Engine.\nIn that case it is enough to have simple abstract class defining all known accepted callbacks by their rightful names. It\u2019s easy to know if a given callback is implemented: one deadly stupid option is to catch the NotImplemented on the Engine side.\nFurther more: your Engine could expose a way to register expected Callback upfront, in which case design is approaching the standard proven by Time, waterproof and bulletproof Observer pattern.\nI would suggest to take a really careful look into so called \u201creactive extensions\u201d, especially in JavaScript (rxjs), and it\u2019s core interfaces: Observer and Observable.","Q_Score":0,"Tags":"python","A_Id":72280205,"CreationDate":"2022-05-16T19:17:00.000","Title":"How can we implement a modular framework with set behaviors?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am researching uses for Javacards and smartcards utilizing\ndifferent ATRs. I want to change these card's ATRs via python to be\ndifferent from the OEM ATR that comes on these cards as default. I\nfigured out a way to change the card's atr, however, it is utilizing a\nscript online - which really doesn't help.\nBelow is the script I found to change the ATR using PyResMan\nscript mode, however, it is only set to one atr, which is a bank and I\nhave no use for it.\nThe Script I found Online: {\n(Beginning numbers show line numbers)\n\n00A4040010********************************\n\n00F00000\n\nC0D6029A02F807\n\nC0D601240108\n\nC0D601470108\n\nC0D601260403600000\n\nC0D601490403600000\n\nC0D6012201FE\n\nC0D601360E0D80318065B0893501F183009000\n\nC0D601590E0D80318065B0893501F183009000\n\nC0D603010101\n\nC0D6030510404142434445464748494A4B4C4D4E4F\n\nC0D6031d0101\n\nC0D6032110404142434445464748494A4B4C4D4E4F\n\nC0D603390101\n\nC0D6033D10404142434445464748494A4B4C4D4E4F\n\n\n}\nThe problem with this script is that I only know what the first 2\nlines do, and that lines 9&10 are the lines that actually contain the\ndata for the ATR changing process. I need to know how I can change the\nATR using the ATR in regular expression form.\nIf anyone knows a way to decode this script, and be able to edit it,\nor knows an easier way to change the ATR of an Unfused or non\npre-presonialized javacard, please let me know! I've been researching\nthose for over a month now, and cannot find an answer that actually\nworks.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":21,"Q_Id":72266413,"Users Score":0,"Answer":"Setting the ATR for a smartcard is not primarily the domain of Javacard specification. Today there is no generic specification or method to set the ATR for all smartcards, as there is no universal way to initialize or personalize the smartcard itself and this is mostly vendor specific.\nThe script that you found online belongs to an NXP Javacard, this information is not standardized and is also not intended for public use to my knowledge, therefore is removed some sensible information. Please contact your card vendor to get information on how to change the ATR(it might not be possible or easy).","Q_Score":1,"Tags":"python,smartcard,javacard","A_Id":72270470,"CreationDate":"2022-05-16T22:53:00.000","Title":"Changing A JavaCard's ATR","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Could anyone help me solve this problem?\nI want to add data and time models in Django, but after makemigration, I got this.\n**You are trying to add a non-nullable field 'MeterReading_DateTime' to mdm_api without a default; we can't do that (the database needs something to populate existing rows).\nPlease select a fix:\n\nProvide a one-off default now (will be set on all existing rows with a null value for this column)\nQuit, and let me add a default in models.py\nSelect an option:**","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":28,"Q_Id":72268709,"Users Score":1,"Answer":"Because it is a non-nullable field, It needs a default value to be set if there is a row without a value for that column.\nThe first point means, for the existing records, it will add a value for this field.\nThe second point means, you have to give a default value which will be used for the existing records and also for the future records (unless you change it)\nEither you add a null=True, give it a one-off default value, or add a default value in your model","Q_Score":0,"Tags":"python,django,database,django-models,makemigrations","A_Id":72269116,"CreationDate":"2022-05-17T05:44:00.000","Title":"Makemigrations\/migrate in django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I often see that, regardless of the model, people often use Model.objects.get(id=id) or .get(product_name=product_name) or .get(cart=my_cart) -- but I now see a piece of code that is using .get() like it's a filter such as .get(product=product, cart=my_cart), is this going to work as intended?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":26,"Q_Id":72313558,"Users Score":1,"Answer":".get() is used to only return one record, as opposed to .filter() which returns a set of records. You can use as many criteria as you like in order to positively identify that one record.\nAn example might be:\nthe_batman = Movie.objects.get(category = \"superhero\", lead__full_name=\"Robert Pattinson\")\nIn this case, either criteria alone will produce a set of many movies (and thus error out in a .get() request), but in combination they will only produce one, and so is working as intended.","Q_Score":0,"Tags":"python,django,orm","A_Id":72313645,"CreationDate":"2022-05-20T04:18:00.000","Title":"Django ORM objects.get() Related Questin: Is it legit to use .get() as if it's .filter()?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"My project is the conception and realization of a web application for the detection of ransomwares based on machine learning.\nFor the realization, I made a web application with python, Django, HTML and CSS.\nOn the other hand i have to create a machine learning code that makes the detection of these ransomware viruses.\nNow what I have to do is deploy the machine learning code in my web app.\nI'll explain a little how it works, the user first registers and then he chooses a csv file to scan, he uploads it and then he chooses the machine learning model he wants  use and then he clicks on scan, when he clicks on scan the file will be scanned by the model he has chosen and a result will be returned to him which is either 1: the file is a ransomware or 0: it is not a ransomware.\nSo,\nI built the web app, I built the model\nNow my problem is how to pass user input to the model\nAnd than take the model's out put to the user.\nNeed help please.","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":40,"Q_Id":72315885,"Users Score":0,"Answer":"I've managed to do something like this using a deep learning model.\nIt's fairly simple everything you're doing in python can be done in the django project you just have to create views and forms to handle the user data input.\nSo you're either new to django or want the whole code snippets ?","Q_Score":0,"Tags":"python,django,machine-learning","A_Id":72322203,"CreationDate":"2022-05-20T08:35:00.000","Title":"How to deploy a machine learning model in a django web app?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have 2 Python servers which are cyclically receiving data from 2 different sensor systems. Both servers are running fine individually.\nI would now like to run both servers simultaneously and process the received data together in one application which receives the data from one of the servers and then requests the data from the other server. However, I currently have no approach how I could implement this in an efficient way.\nDoes anyone here have an approach, a similar problem or an idea how this could be implemented efficiently?\nThanks in advance! :)","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":24,"Q_Id":72320611,"Users Score":0,"Answer":"if you are working with IOT system, i think you should use mqtt broker","Q_Score":0,"Tags":"python,server","A_Id":72320744,"CreationDate":"2022-05-20T14:28:00.000","Title":"Run 2 Python servers simultaneously and process received data","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm creating a website using Django as a back-end and next I will make a native mobile app using Flutter, so how can I bond these together (share same database and funcionality)? Making what is called PWA (progressive web app)","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":28,"Q_Id":72324788,"Users Score":0,"Answer":"I think you should use Django Rest Framework so that Flutter app can interact with Djanggo Backend","Q_Score":0,"Tags":"python,django,database,postgresql,flutter","A_Id":72326619,"CreationDate":"2022-05-20T21:07:00.000","Title":"How can I integrate a website functionality to a mobile app and share same database","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a Django project, and I want to save created_at datetime in the database. I generate datetime.now with jdatetime (or Khayyam) python package and try to save this in DateTimeField. But sometimes it raises error because the Gregorian(miladi) date of the entry does not exist. what can I do about this?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":23,"Q_Id":72345302,"Users Score":4,"Answer":"In my idea, you can save two model fields.\nOne is DateTimeField contains gregorian datetime, and\nanother one, CharField contains converted Jalali to a String value and save it.\nThe DateTimeField for functionality, e.g., filter between to datetime.\nThe StringField for representing in response(without overload).","Q_Score":4,"Tags":"python,django,django-models,hijri,jalali-calendar","A_Id":72345305,"CreationDate":"2022-05-23T08:18:00.000","Title":"save Jalali(Hijri shamsi) datetime in database in django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"newbie here! I am following along with the freecodecamp tutorial and up until this point I have had no issues with the .env files. However, as I am working on the full-stack section at the end of the video it seems as though my .env file is throwing errors.\nI have downloaded the verbatim syntax from the github repo and still it is prompting errors so the problems seem to originate on my end.\nexport PRIVATE_KEY = 0x104XXXXXXXXXXXXXXXXXXXXXXXX\nexport WEB3_INFURA_PROJECT_ID = 89ccXXXXXXXXXXXXXXX\nThe problems that pop up are saying that a declaration or statement is expected, cannot find name 'PRIVATE_KEY\"\/\"WEB3_INFURA_PROJECT_ID\". I have since installed yarn as a new package; could this be contributing to the issues?\nThank you so much for your help and if I need to post any more info I am more than willing to do so.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":22,"Q_Id":72349854,"Users Score":1,"Answer":"For anyone having the same problems I am posting the 'solution' to this issue rather than removing the thread. Restarting my computer seemed to fix the issue. Who would have thought that would be the answer....","Q_Score":1,"Tags":"python,solidity","A_Id":72362634,"CreationDate":"2022-05-23T14:00:00.000","Title":"sol\/python .env issues freecodecamp","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am new to Python and Django, I have an app directory called calc and inside it there are two files:\n\nviews.py\nurls.py\n\nIn urls.py, if I type in import views the server generates an error, however if I type from . import views everything works fine. Could someone explain why? I thought since the two py files are in the same directly, the import statement should match the views.py","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":38,"Q_Id":72349910,"Users Score":0,"Answer":"Since your files are in your calc module, you have to use import calc.views, not import views.\nYou can then refer to some view function some_func as calc.views.some_func.\nOr you could do import calc.views as views, and then you can refer to the function as views.some_func, the same as when you use from . import views.\nThe reason you have to include the calc prefix with import calc.views is because that is considered an \"absolute import\", and calc itself is not in your $PYTHONPATH -- its parent directory is.\nIn any case, you are probably better off sticking with from . import views (which is referred to as a \"relative import\").","Q_Score":0,"Tags":"python-3.x,django,python-3.10","A_Id":72356547,"CreationDate":"2022-05-23T14:03:00.000","Title":"import views vs from . import views","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am new to Python and Django, I have an app directory called calc and inside it there are two files:\n\nviews.py\nurls.py\n\nIn urls.py, if I type in import views the server generates an error, however if I type from . import views everything works fine. Could someone explain why? I thought since the two py files are in the same directly, the import statement should match the views.py","AnswerCount":2,"Available Count":2,"Score":1.2,"is_accepted":true,"ViewCount":38,"Q_Id":72349910,"Users Score":0,"Answer":"The answer is really simple. By default if you import everything, you are importing it from standard pythonish library. If you expand it to from everything.something import anything it checks the path starting with app everything modules. If not successful, it also tries to look for global.\nIn your case it looks inside same folder (starting .) for module views which isn't global package, so it cannot be achieved by simple import views.","Q_Score":0,"Tags":"python-3.x,django,python-3.10","A_Id":72355221,"CreationDate":"2022-05-23T14:03:00.000","Title":"import views vs from . import views","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"if you have some fixed data  in Django, for example, ten rows and 5 columns.\nIs it better to create a  database for it and read it from the database, or is it not good and it is better to create a dictionary and read the data from the dictionary?\nIn terms of speed and logic and ...\nIf the database is not a good choice, should I write the data as a dictionary in View Django or inside a text file or inside an Excel file?\nWhichever method is better, please explain why.","AnswerCount":1,"Available Count":1,"Score":0.3799489623,"is_accepted":false,"ViewCount":20,"Q_Id":72365818,"Users Score":2,"Answer":"It depends upon the application.. but if there is doubt, create a model for it and put it in the database.  And here's why I say that:\n\nIf your data needs to be changed, or if you want to view it, you can easily do so in the Django Admin app.\n\nIf your applications contains models which relate to this data, you can use a foreign key to reference it, rather than replicating it or using references that aren't enforced by the database.\n\nIt makes it much easier to do queries on your whole database if everything is in the database.  For example, let's say that you have a table of \"houses\" and each house has a \"color\".. but you've stored the list of color names in a dictionary outside the database.  Now you want a list of houses that are \"Bright Blue\".  First you have to look in your dictionary to find the id of the color \"Bright Blue\", then you have to do your database lookup using the id you found.  It takes something that would normally be a very simple one-line query in Django and makes it much harder.\n\nBy the same logic, if you wanted a list of houses along with their color, this would be a very simple query if done entirely in the database but is extra work if you keep some data elsewhere.","Q_Score":0,"Tags":"python,django,dictionary","A_Id":72365922,"CreationDate":"2022-05-24T15:45:00.000","Title":"data base or text file and excel file in Django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am doing a Heroku tutorial and web: python manage.py runserver 0.0.0.0:$PORT creates the error when I run heroku local or heroku local -p 5000 (or one of several more variants). However, web: python manage.py runserver 0.0.0.0:5000 works fine. I suspect I am making a simple error with how to pass an environment variable into the Procfile.\nThe error message is: CommandError: \"0.0.0.0:$PORT\" is not a valid port number or address:port pair.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":22,"Q_Id":72369000,"Users Score":0,"Answer":"The problem was a difference between Windows and Linux. The solution is below for others' benefit.\non linux, $PORT references the variable called PORT\non windows, we instead need %PORT%\nHence, web: python manage.py runserver 0.0.0.0:%PORT% works for Procfile.windows. To run the Windows specific Procfile, run heroku local web -f Procfile.windows as the normal Procfile file should be left with web: python manage.py runserver 0.0.0.0:$PORT so it works when deployed (as heroku machines use linux)","Q_Score":1,"Tags":"python,powershell,heroku,procfile","A_Id":72369638,"CreationDate":"2022-05-24T20:17:00.000","Title":"environment variable issue with procfile heroku","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"Error:\n\ngoogle.auth.exceptions.RefreshError: ('invalid_grant: Token has been expired or revoked.', {'error': 'invalid_grant', 'error_description': 'Token has been expired or revoked.'})\n\nHowever, another app I use, with a different account, never runs into any issues. I use the same Python OAuth Quickstart for both.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":33,"Q_Id":72370166,"Users Score":0,"Answer":"Token has been expired or revoked.\n\nBasically means just that either the user has revoked your access or google has.  Users can remove your access directly in their google account when ever they want to.\nGoogle expired tokens\n\nIf you are using a gmail scope, and the user changes their password. Your refresh token will probably be revoked.\nIf your app is still in testing and the refresh token is more then seven days old the users consent will be removed and the refresh tokens will be revoked.\nIf the refresh token has not been used in more then six months the refresh token will be revoked.\nIf the user authroizes you app you get a refresh token, if the do it again you get another refresh token. both will work.  You can have up to 50 outstanding refresh tokens for a user.  If you request again then the first one will be expired.  Ensure you are always storing the most recent refresh token.\n\nno matter what the cause your application should be configured in a way as to request authorization from them again if the refresh token has expired.","Q_Score":1,"Tags":"python-3.x,gmail,google-oauth,gmail-api,google-api-python-client","A_Id":72373650,"CreationDate":"2022-05-24T22:37:00.000","Title":"I've been working with the Google API. Sometimes my refresh token refreshes and other times it fails and causes a 'RefreshError.' Why? How to fix?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I've built a web application which uses spotify api and it uses client id and client secret which is present in main.py i.e on the backend side of my application to fetch data regarding songs. Now I want to deploy the app on heroku and want to know whether it will be safe to deploy it like this or should I move client id and secret somewhere else.","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":18,"Q_Id":72380893,"Users Score":0,"Answer":"Don't include the client id and the cilent secret into the code. Just add there a comment and the user can just add his own secrets.","Q_Score":0,"Tags":"python,api,heroku","A_Id":72381040,"CreationDate":"2022-05-25T16:00:00.000","Title":"How to safely store client secret?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"We have an application where the client needs to request some information stored on DynamoDB filtering by date. We have the service created with API Gateway and a Lambda retrieving the corresponding records on DynamoDB, so we have to retrieve all the necessary records in <30segs.\nThe volume of the records keeps increasing and we have thought in the following:\n\nThe client will ask for records in a concrete order (0-100, 100-200, 200-300, etc...) in order to display them on a concrete page on the frontend.\nThe backend will handle requests (and therefore search on DynamoDB) for that concrete order of records (0-100, 100-200, etc...)\n\nIs there any way on DynamoDB to get the records from a concrete position to a concrete position? Or the only way is to retrieve all the records for that date range and then send the concrete positions to the client?\nThank you in advance,\nBest regards.","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":25,"Q_Id":72388767,"Users Score":1,"Answer":"You don\u2019t specify a schema so I\u2019m going to give you one. :)\nSetup a sort key that\u2019s the position number. Then you can efficiently retrieve by position number range.\nOr instead of using ordinals if you want to use timestamps then just pass to the client the sort key starting point for their next request and use it as the lowrr value for the next query.\nThere\u2019s no way to efficiently find the Nth many item in an item collection.","Q_Score":0,"Tags":"python,lambda,amazon-dynamodb,aws-api-gateway","A_Id":72388956,"CreationDate":"2022-05-26T08:14:00.000","Title":"Retrieve records in DynamoDB by position","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am getting since yesterday on appliction from yesterday it's working fine early some upgradtion on cloud breaks the application\nThis is the error\n\nError : module 'typing' has no attribute '_ClassVar'\n\nMy python env is 3.7 and Django version 2.1.3","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":36,"Q_Id":72403179,"Users Score":0,"Answer":"Please check the below steps if that helps to fix the issue:\n\nTry downgrading the Python version to 3.6 and check.\nAlso, run this command pip uninstall dataclasses when using the Python Version 3.7\nAs Charlie V Said,\n\n\nCheck the version of the Python in your App Service versus the version you use to develop. Check the requirements file and compare that with your development.","Q_Score":0,"Tags":"python-3.x,django,azure-devops,azure-web-app-service","A_Id":72448200,"CreationDate":"2022-05-27T09:20:00.000","Title":"Getting Error in Django Application on Azure App Service","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Basically my scenario is that I have the webpage open and want to copy some of the text from the website that is open on my screen ( there is a whole login process every time ) . For Security reasons, I do not want to have to continuously login to the webpage and for that reason, requests are not suitable. I also do not want to use selenium as it will open up a new browser when I wish to use my existing one. My question is with my browser already open on the page I want info from, is there some sort of script I can make that will retrieve certain information on the page for me and save it somewhere (almost like a macro but it's able to retrieve certain elements) . Is this a possibility?","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":26,"Q_Id":72414411,"Users Score":0,"Answer":"I'm not sure if I understood the question correctly.\nOne way might be to download the entire .html and process the respective data \"locally\" after downloading the .html.","Q_Score":0,"Tags":"python","A_Id":72414437,"CreationDate":"2022-05-28T09:19:00.000","Title":"Scrape website data without BS or selenium (Python)","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"i just wanna call this function : (django-admin manage.py runserver) but it failed everytime ,and it gives me this message instead (No Django settings specified.\nUnknown command: 'manage.py')\nwhat can i do ?","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":18,"Q_Id":72419922,"Users Score":0,"Answer":"Go to the folder where your manage.py file is located nad run\n.\/manage.py runserver or python manage.py runserver","Q_Score":0,"Tags":"python,django-admin,django-runserver","A_Id":72419934,"CreationDate":"2022-05-28T23:30:00.000","Title":"How to run the django-admin manage.py runserver","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have to crawl several URLs in order to extract contact information (HTML). Some URLs could not exist.","AnswerCount":1,"Available Count":1,"Score":-0.3799489623,"is_accepted":false,"ViewCount":25,"Q_Id":72437019,"Users Score":-2,"Answer":"you use the request module\ntry each url, and if they return 404 they are not valid","Q_Score":0,"Tags":"python,html,beautifulsoup,scrapy,web-crawler","A_Id":72437072,"CreationDate":"2022-05-30T15:53:00.000","Title":"How to crawl URLs listed in a CSV with Python and export the contact data in another CSV? Thanks","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I can't run my Django project, can you help?\nWhile py can run any py file in the terminal as py_any_project_name.py, when I type py manage.py runserver or python manage.py runserver, I get python not found error. Any ideas on the cause and solution? I'm using Python 3.10 and it's attached to the environment variables as the path..\nFor example i create an example.py file that includes print(\"Example\").\npy example.py\n\n\nExample\n\n\npy manage.py runserver\n\n\nPython can not found.","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":25,"Q_Id":72447548,"Users Score":0,"Answer":"You need to enter that file path to run it, or just paste the file path of the python file. I hope I was able to help!","Q_Score":0,"Tags":"python,django,django-runserver","A_Id":72447717,"CreationDate":"2022-05-31T12:09:00.000","Title":"Python Can not found - Django, runserver err","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"When I try to run \"django-admin help\" or any other django-admin command in the vscode terminal (within the virtualenv) it gives me the following error :\nFatal error in launcher: Unable to create process using '\"F:\\DevOps\\Django\\btre_project\\venv\\Scripts\\python.exe\"  \"F:\\Django\\btre_project\\venv\\Scripts\\django-admin.exe\" help': The system cannot find the file specified.\nThe whole Django project was located in F:\\DevOps first but then I moved the Django folder outside the F:\\DevOps so it's now at this location currently \"F:\\Django\".\nVirtual environment can be activated and deactivated perfectly and also if I start the server with \"python manage.py runserver\" The server is up and running. But whenever I try to run the django command it gives me the above error.\nAlso, in the virtual environment of project django is installed and I also tried reinstalling the django in the virtualenv with pip but nothing worked out and I get the same error.\nAny help would be appreciated, thanks.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":22,"Q_Id":72451351,"Users Score":0,"Answer":"The easiest way to handle this is to create a new virtual environment, pip install django in that environment and it will resolve this specific issue.\nPS: Then run your manage.py server on this new virtual environment instead of the old one!","Q_Score":0,"Tags":"python,django,django-admin,virtualenv","A_Id":72454883,"CreationDate":"2022-05-31T16:35:00.000","Title":"'django-admin help' Fatal error in launcher: Unable to create process","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"Say I have a bunch of flags\/options related to using my app.  Stuff like firstSetupCompleted, tutorialCompleted, userExperienceLevel.\nWhat would be the best way to store these on a per-user basis?  The options I've considered so far are\n\ndjango-constance package\nA profile model that's 1-1 with a User model\na JSON field on the user model\n\nWhat would the best approach be to storing flags\/info related to using the site, but not necessarily directly related to the user themselves (thus do not want to store in the User model)","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":20,"Q_Id":72453845,"Users Score":0,"Answer":"Well I would definitely prefer the second option and go with that. It is because when you do that the linking and reference is easy to maintain and you can get the data of the user with just an extra attribute .","Q_Score":0,"Tags":"python,django","A_Id":72459768,"CreationDate":"2022-05-31T20:34:00.000","Title":"Best Way To Store User Info separate from User model in django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have two models A, B, they contain a lot of data(int database). Suddenly I decided to add a foreign key in model B to A. But Django can't migrate it because existing rows in table B haven't value for this FK. What should I do in such a situation?","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":31,"Q_Id":72479816,"Users Score":0,"Answer":"in foreignkey attribute add default=None","Q_Score":1,"Tags":"python,django,database,migration","A_Id":72479848,"CreationDate":"2022-06-02T17:00:00.000","Title":"How to add a new foreign key field in model django without migration error?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have looked through similar questions that have been asked before. No luck so far. I'm using PySpark within a venv environment. How do I go about changing the setting? Do I do it from within jupyter notebook\/python script? Or do I need to use bash command? Is it in a specific configuration file? If so, where is it located?","AnswerCount":2,"Available Count":1,"Score":0.0996679946,"is_accepted":false,"ViewCount":14,"Q_Id":72480159,"Users Score":1,"Answer":"This config, along many others, has been moved to: SQLConf - sql\/catalyst\/src\/main\/scala\/org\/apache\/spark\/sql\/internal\/SQLConf.scala\nThis can be set either in the config file or via command line in spark, using:\nspark.conf.set(\"spark.sql.debug.maxToStringFields\", 1000)","Q_Score":0,"Tags":"python,scala,apache-spark,pyspark,environment-variables","A_Id":72480761,"CreationDate":"2022-06-02T17:31:00.000","Title":"How do I set spark.sql.debug.maxToStringFields?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Let's suppose I have a django app based on templates, but i want to make a button that redirects user to admin app made in Vue.js, what is the best way to redirect user to that vue service and not force him to login second time on that vue page?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":16,"Q_Id":72489012,"Users Score":0,"Answer":"In case you have control on the Vue app, or at least suggest to have that functionallity implemented:\n\nThe button can contain a a token hidden, href=\"myvueapp.com\/?some_token_name=xxxxx\".\n\nIn case you don't have any control on the Vue app:\n\nNothing to do\n\nAnd what if I have full control on both, and I want them to share the auth cookies  ?\n\nYou can embeed the Vue app inside a view\/url of Django. Once the app is inside django... well you are done.\n\nActually there are more possibilities, if you will have one domain, two domains, if apps are separated or toguether, if you want to share cookies. But remember, Django can change the settings for admin cookies, you can override django functions to achieve not so common behaviours, you can access\/modify the cookies from the Vue app, and cookies are not shared between different domains.","Q_Score":0,"Tags":"python,django,vue.js,redirect,view","A_Id":72489324,"CreationDate":"2022-06-03T11:35:00.000","Title":"How to redirect user to vue app from django without forcing him to login second time?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I need advice. I want make 3 types of user:\n\nmember (only nickname\/password\/email)\ncompany (nickname\/password\/email\/company\/regon + permision for edit model)\nadmin\n\nMy question is aobut how make model for this users:\n\nmake big model for member and company together but field which are only for comapny make empty for member. Next to by admin panel i can make group and add \"comapny\" ppl\nmake 2 type of user (here i will need advice like what i should use on it) and seperate website register for member and company and login should be the same form\n\nThank you for answer","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":19,"Q_Id":72492175,"Users Score":0,"Answer":"You can achieve this simply by creating a Boolean field for each type of user (member, company, admin) in your User model. Save the different type of users from different URLs, when save just change the Boolean flag into True. Then, you can handle the user in view like if user_type.member: and so on. It also can be achieved by using Enum (choice) field.","Q_Score":0,"Tags":"python,django,django-models,user-permissions,django-users","A_Id":72493387,"CreationDate":"2022-06-03T15:53:00.000","Title":"Django, more type of user - I need advice","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"what's the right way to do this in Django, i want to to filter a queryset where the field has a specific value or is null,which means that if i filter a queryset by field named \"type\", it would return a queryset with objects has a specific value of type like \"active\" and also object with \"type\" has null value.","AnswerCount":3,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":268,"Q_Id":72509687,"Users Score":0,"Answer":"I think this is the simplest technique to achieve your aim.\n\nModel.objects.filter(Q(type='active') | Q(type=True))","Q_Score":2,"Tags":"python,django,django-queryset,django-orm","A_Id":72511072,"CreationDate":"2022-06-05T17:38:00.000","Title":"Filtering QuerySet in Djnago where a field has a specific value or is null","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a fairly simple Flask application that response to a form submission with a xlsx file after some processing. I've been trying to change the webapp to use Turbo-Flask, however due to the way Turbo-Flask changes how form submissions work, my current implementation no longer works. I've tried reading some documentation, however the Turbo-Flask docs are fairly limited, and I don't have any experience with Turbo outside of this context.\nWas just wondering if there's something obvious I'm missing, a simple redirect etc.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":63,"Q_Id":72544017,"Users Score":0,"Answer":"You can always turn off turbo for given form\/link with data-turbo=\"false\" attribute.\nOther than that, you need to explain your question a bit more for me to help you.","Q_Score":0,"Tags":"python,flask,turbo","A_Id":74993589,"CreationDate":"2022-06-08T10:21:00.000","Title":"How to send_file() in response to form submission in Turbo-Flask python","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"This is probably a very stupid question, but I must ask it. Is pip case sensitive? When I execute pip install flask is it the same as pip install Flask?\nThanks in advance!","AnswerCount":2,"Available Count":1,"Score":-0.0996679946,"is_accepted":false,"ViewCount":213,"Q_Id":72556438,"Users Score":-1,"Answer":"No, pip is not case sensitive. All comparisons of distribution names must be case insensitive, and must consider hyphens and underscores to be equivalent.","Q_Score":1,"Tags":"python,module,pip,pypi","A_Id":72556491,"CreationDate":"2022-06-09T07:40:00.000","Title":"Pip case sensitivity","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I would like to send an email (using template) to customer but I don't want to create said email in record chatter as well.\nRight now I use the method send_mail() from mail.mail_template.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":94,"Q_Id":72560061,"Users Score":0,"Answer":"If you are planning to send email via Odoo core Email wizard, then it is not possible because the \"composition_mode\" field is required and default value is comment.\nBut if you can achieve it with a new custom button, type=object. On the button click, the method will trigger in the background, fetch an email template and send it.","Q_Score":0,"Tags":"python,python-3.x,odoo,odoo-14","A_Id":72580263,"CreationDate":"2022-06-09T12:13:00.000","Title":"How to prevent emails from being created in record chatter after sending email to customer?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm working on a backend microservice, using the built in python logging library to monitor what is happening in my Flask app, and using Gunicorn to spin up multiple workers with it.\nIdeally I would like to create a parent logger (logging.GetLogger('Service')), and each worker would use a child logger (logging.GetLogger('Service.Worker1'), logging.GetLogger('Service.Worker2'), etc.). However, I'm not sure if I have a way to differentiate worker processes.\nCan I pass somehow different arguments for each new gunicorn worker?\nRight now when I'm using the same logger in each worker (logging.GetLogger('Service') for all), I have no way to tell which worker created the log. This might not be an issue, but if I'm using a logging.FileHandler then separate processes may collide.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":621,"Q_Id":72576891,"Users Score":1,"Answer":"One workaround that I came up with is simply using os.getpid(), which will be unique in each worker. While this does the job and allows me to create unique names for logging, I'm still wondering if there is a better way.","Q_Score":2,"Tags":"python,logging,gunicorn","A_Id":72576942,"CreationDate":"2022-06-10T15:44:00.000","Title":"Logging from multiple workers in Gunicorn","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"im trying to learn how to fetch API using python-flask with heroku as the cloud service\nin the app, there's a key to communicate with the source server and i set the config variable (config vars) like\nX_App_APIKeys = {key strings} \nhow can i use the variable as an object in my code?\ni.e : myapikeys = X_App_APIKeys","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":112,"Q_Id":72582586,"Users Score":0,"Answer":"Simply import os\nThen myapikeys = os.environ['X_App_APIKeys']\nNotice that this only works on the live app deployed on Heroku when the config has been set up. To run your local instance, replace it with your real key instead.","Q_Score":0,"Tags":"python,heroku","A_Id":72596197,"CreationDate":"2022-06-11T07:46:00.000","Title":"How to set heroku config vars as an object in python","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm going to use FastAPI Users for my application. I saw that it generates JWT tokens to perform verification processes in the application. For example, in order to verify user email address or to request password change. Is it a good idea in terms of security?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":553,"Q_Id":72586828,"Users Score":3,"Answer":"JWT is state-less authentication and is so useful if you use backend with multiple frontends (mobile app, website UI and ...)\nIts security is also Depends on your implementation.\nIf you use different secret key than default fast-api tutorial (I saw it on some projects!) and use rational expiration date, its secure enough to handle big projects.\nconsider you should logout every login sessions of specific user, which is logged-out from one client if you have multiple clients. which means you should implement some kind of black-list JWT.\nAbout verifications, I recommend using two factor verification. I usually use security code send to email or SMS code. It's more secure if you consider this scenario:\nA user is logged-in on a device and JWT token is not expired. another user using same device in office and can change password without any second factor security layer. If you have code send to the mobile, its more secure and no one can access it easily!","Q_Score":1,"Tags":"python,jwt,fastapi,email-verification","A_Id":72587204,"CreationDate":"2022-06-11T18:11:00.000","Title":"Is it a good idea to use JWT as verification token?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm writing a simple mod manager which uses the nexus website to download the mod. When on the website, there is an option to download a given mod as a file or via a mod manager, the latter being an \"nxm\" link. I figured out how to associate a program with the nxm link through registry editor, but now I don't know how to get any information from that link within the python program. Is there a module that will do it? Essentially, I want to know how to open a python program via a link and have the link as an object which I can use in the program.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":16,"Q_Id":72590966,"Users Score":0,"Answer":"Try using py-script and javascript alongside.","Q_Score":0,"Tags":"python","A_Id":72590999,"CreationDate":"2022-06-12T09:31:00.000","Title":"How to associate a python program to a download link within a browser and get information from it","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm using django to create an webapp. I have been asked if I can look at creating a sort of double log in system.\nFor example: A nurse on the ward will open up my webapp and will be met with a login page for their ward. So all nurses on that ward will have that generic log in.\nOnce they've logged in they will be met with a second login page where they can enter their normal user credentials that only they know.\nI'm quite stuck at how to achieve this currently - or if someone could suggest an alternative method I'd be grateful!","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":27,"Q_Id":72605530,"Users Score":0,"Answer":"I would recommend authenticating the user normally, then use some property of that user (maybe a permissions group etc.) to represent the ward they belong too.  Then it follows to restrict that user to information\/pages relevant to their ward","Q_Score":0,"Tags":"python,django,django-login","A_Id":72605594,"CreationDate":"2022-06-13T15:40:00.000","Title":"Creating a double log in system for department and user","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Im trying to understand the period in from django.shortcuts import render\nDoes it mean from the django directory in the shortcuts file?\nOr does it mean from the django directory, from the shortcuts directory, import the render file?","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":34,"Q_Id":72610567,"Users Score":1,"Answer":"In this case it means from the django package in the shortcuts module import the render function.  However that isn't a definition that applies to all import statements of the same structure.\nA package is roughly speaking a directory containing 1 or more modules.\nA module in python is roughly any .py file.\nSo your first guess was right, however it isn't consistent.  For example one common django import statement is:\nfrom django.views import View\nbut you won't find a View module inside the django.views directory.\nView is actually a class that is defined in the django.views.generic.base module.","Q_Score":1,"Tags":"python,django","A_Id":72610583,"CreationDate":"2022-06-14T01:20:00.000","Title":"Confused about the import syntax in django for Render()","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm currently working on a project which is to convert pdf to epub using python. While converting the pdf to epub the styling like font family, font size need to be exactly same in epub as that of pdf. Is there a way to achieve this using python? And i don't need any external softwares to do it. I used aspose.\n#code i used\nimport aspose.words as aw\ndoc = aw.Document(\"Input.pdf\")\ndoc.save(\"Output.epub\")\nand it is a simple text pdf.","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":716,"Q_Id":72612564,"Users Score":0,"Answer":"You are going to get a variety of answers\/comments that will ask you to show code as to what you tried and post sample documents etc.\nLet me save you the trouble.  Your question seems straightforward in that want to convert a pdf to epub and retain the style information.\nGood luck.\nIt will all depend on your PDF file.  Does it have embedded fonts or does it rely on system fonts?  Complicated layout?  Headers and footers?  What about images?  Dingbats characters?  What if there is no text in the pdf, but just postscript drawing of text characters?  What if the PDF just consists of multiple scans of pages in a pdf container? Is everything in English?  Any Unicode characters? Are you looking to get the styles right at the page level? Paragraph? Sentence? Word? or Character Level?\nBasically this is a hard problem.  PDF was designed as an end use format not an  interchangeable format.  Most things get converted to PDF because someone wanted to control how the final product looked.  You can look at text extraction tools for PDF, but there is not an easy solution with opensource or commercial tools.","Q_Score":0,"Tags":"python,pdf,styling,epub,aspose.words","A_Id":72612898,"CreationDate":"2022-06-14T06:45:00.000","Title":"Retaining the fond of pdf to epub","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have many FastApi apps that are running in kubernetes. All of them are using some common kubernetes functionalities like liveness and readiness probe, discovering neighbour pods using ordinals(This is my next challenge). There are some logic in code that I need to implement but in general many parts of the code stay the same like:\n\ncreate route for live and readiness probes\nsending request to different ordinals of the statefulset to find neighbours, implementing the endpoints for those requests.\n\nIs there a Library that can use in my python\/FastApi code to implement generic features that are available in Kubernetes.","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":814,"Q_Id":72621698,"Users Score":1,"Answer":"What specific feature of K8S do you want to implement in your FastAPI apps? Liveness- and readiness endpoints are easy (as in, they are endpoints you can define in FastAPI and then declare them in your YAML definition of your pod).\nMy understanding is, you want pods in a StatefulSet to communicate with each other, but you would need information from K8S to do so. E.g. you want FastAPI-Pod-1 to know it is pod 1 out of let's say 4. I would recommend the Downward API that K8S offers and built your logic around that (e.g. read pod information from environment variables): kubernetes.io\/docs\/tasks\/inject-data-application\/\u2026 I do not know of any standard framework that implements any logic for you..","Q_Score":1,"Tags":"python,kubernetes,fastapi,kubernetes-statefulset","A_Id":72666305,"CreationDate":"2022-06-14T18:18:00.000","Title":"Kubernetes functionalities for fastapi","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I need a run a function infinitely until we manually stop it. But after executing each loop we have to display the current loop result in the template. After displaying the result it continues to the next loop.\nHow to execute this process flow. Please advise.","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":96,"Q_Id":72633529,"Users Score":1,"Answer":"In Django, the functions that are in the views.py file are called every time a request is made by the user.\nWritting in views.py a infinite loop is just impossible but there is way to do what you want :\n\nYou can add in the template a js function to reload the page and request the page to your server. I don't know what you want to do in your infinite loop but you can use variables and increase every time the page is called.\n\nIf you want to refresh dynamically without refreshing the webpage every time : you can create a python file like \"infiniteLoop.py\" and edit a json\/txt in media folder and a js function can check it every x sec.\nOr if you want to do that properly, you can use node and socket.io to send the data to the user.\n\n\nThe 2nd choice is maybe the best, I hope it helps !","Q_Score":0,"Tags":"python,django,loops","A_Id":72633938,"CreationDate":"2022-06-15T14:51:00.000","Title":"How to run infinite loop in Django and Display Message on template after each Loop without breaking the loop","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Ive found this question, but the answer was from 2008, and I couldnt find any current answer, so I wanted to know if there is a good place to find current information about it, or if you have any advice about it I would be very grateful.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":107,"Q_Id":72637880,"Users Score":0,"Answer":"You want to use .\/manage.py startapp when you already started a project. Code is developed inside apps.\nYou may use 2nd .\/manage.py startapp if you wan't to split functionality in your project maybe to be reused in some other app. Example of such an app is administration, django-rest-framework and others.\nIf you are just doing a small project you will be fine with one app per project.","Q_Score":1,"Tags":"python,django","A_Id":72638492,"CreationDate":"2022-06-15T21:11:00.000","Title":"When is necessary to create a new app (with startapp) in Django?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am new to singularity concept but successfully created singularity image for running alpha fold tool. I am encountering below-mentioned error.\nI would like to request if anyone could explain how to troubleshoot the error or any related information that may help to combat it.\nThank you in advance.\nsingularity run --nv alphafold220.sif --fasta_paths=\/home\/igib\/AF_singualrity\/test.fasta\n**\n*> \/sbin\/ldconfig.real: Can't create temporary cache file\n\n\/etc\/ld.so.cache~: Read-only file system Traceback (most recent call\nlast):   File \"\/app\/alphafold\/run_alphafold.py\", line 37, in \nfrom alphafold.model import data   File \"\/app\/alphafold\/alphafold\/model\/data.py\", line 19, in \nfrom alphafold.model import utils   File \"\/app\/alphafold\/alphafold\/model\/utils.py\", line 22, in \nimport haiku as hk   File \"\/opt\/conda\/lib\/python3.7\/site-packages\/haiku\/init.py\", line 17,\nin \nfrom haiku import data_structures   File \"\/opt\/conda\/lib\/python3.7\/site-packages\/haiku\/data_structures.py\",\nline 17, in \nfrom haiku._src.data_structures import to_immutable_dict   File \"\/opt\/conda\/lib\/python3.7\/site-packages\/haiku\/_src\/data_structures.py\",\nline 30, in \nfrom haiku._src import utils   File \"\/opt\/conda\/lib\/python3.7\/site-packages\/haiku\/_src\/utils.py\", line 24,\nin \nimport jax   File \"\/opt\/conda\/lib\/python3.7\/site-packages\/jax\/init.py\", line 108, in\n\nfrom .experimental.maps import soft_pmap   File \"\/opt\/conda\/lib\/python3.7\/site-packages\/jax\/experimental\/maps.py\",\nline 25, in \nfrom .. import numpy as jnp   File \"\/opt\/conda\/lib\/python3.7\/site-packages\/jax\/numpy\/init.py\", line\n16, in \nfrom . import fft   File \"\/opt\/conda\/lib\/python3.7\/site-packages\/jax\/numpy\/fft.py\", line 17, in\n\nfrom jax._src.numpy.fft import (   File \"\/opt\/conda\/lib\/python3.7\/site-packages\/jax\/_src\/numpy\/fft.py\", line\n19, in \nfrom jax import lax   File \"\/opt\/conda\/lib\/python3.7\/site-packages\/jax\/lax\/init.py\", line\n330, in \nfrom jax._src.lax.fft import (   File \"\/opt\/conda\/lib\/python3.7\/site-packages\/jax\/_src\/lax\/fft.py\", line\n144, in \nxla.backend_specific_translations['cpu'][fft_p] = pocketfft.pocketfft AttributeError: module 'jaxlib.pocketfft' has no\nattribute 'pocketfft'*\n\n**","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":281,"Q_Id":72657925,"Users Score":0,"Answer":"Singularity images run on a read-only file system, with the exception being directories that have been mounted from the host OS.\nYou can enable a tmpfs overlay when running by using the --writable-tmpfs flag. Note that the max size of the tmpfs overlay is the size of \/dev\/shm, which can be smaller than expected in some cloud VMs.","Q_Score":0,"Tags":"python,python-3.x,anaconda,job-scheduling,singularity-container","A_Id":72685970,"CreationDate":"2022-06-17T10:26:00.000","Title":"Runing alphafold job in singularity","Data Science and Machine Learning":1,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm trying to build my first DJango project. I'm using PyCharm for my IDE. In my view.py folder I noticed that the \"from django.shortcuts import render\" is grayed out and when I hover over it, it has a message that says Unused import statement \"from django.shortcuts import render\". Will this affect my project? Is there a way to fix this? Thank you.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":118,"Q_Id":72672031,"Users Score":0,"Answer":"When you import a module but do not use it in your code, Pycharm marks it as unused. Although leaving the import statement there will not affect your project, if the module is not being used it is best to remove the import.","Q_Score":0,"Tags":"python,django-views,render","A_Id":72672195,"CreationDate":"2022-06-18T19:10:00.000","Title":"Render Import Statement Unused","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a Django application where I give users a Excel file for them to give me dates, i ask them to give me the date in DD\/MM\/YYYY format (the one used in Latin America) The problem is that if the language of the Excel file is in English, it uses the MM\/DD\/YYYY format. So for example if they write 01\/05\/2022, when i open the file in my application i receive 05\/01\/2022.\nSo I want to know if there is a way to get the original language of the excel file, for me to put some conditions inside my application, or if i can get the original raw text of the file.\nI can't change the format that the application uses (because I receive excel files that are mainly in the spanish language) or ask my clients to write the dates in a different format, or ask them to change the language of the file.\nI am open for other type of solutions too.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":74,"Q_Id":72679557,"Users Score":0,"Answer":"An Excel file doesn't have a \"language\". The system that Excel runs on has settings for region and language.\nExcel will store a date as a number internally, so if my system uses US English with MDY format, then May 5 will be stored as 44682 and if my system uses a language with a DMY, then May 5 will still be stored as 44682.\nSo, if you get the underlying numeric value for the date, you would not need to be concerned what format was used to enter it.","Q_Score":0,"Tags":"python,django,excel,date","A_Id":72680158,"CreationDate":"2022-06-19T18:55:00.000","Title":"Getting the original language or original text of date in Excel file","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Hi everyone I am new to django and could use help building an ERP system with it. Can anyone assist me, i have discord if you are interested in helping. I figured we could communicate better on it. Please help me with django I am going nuts","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":16,"Q_Id":72687987,"Users Score":0,"Answer":"(Unfortunately I cannot comment because of low reputation points)\nOne of the first and most important steps of building a web application \/ service (that uses models) is to identify the needs and features and then implement them on models. You can start by working on your application's models and then the rest of development process will be easier to work on.","Q_Score":0,"Tags":"python,django-models,django-views,django-forms,django-templates","A_Id":72688428,"CreationDate":"2022-06-20T13:38:00.000","Title":"Django application assistance?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have, as title says, a JS\/Python\/PostgresQL app that I would like to deploy using AWS.  I feel as though I could figure out deployment of the 3 pieces as separate, discrete entities, but what I haven't been able to figure out\/understand, is how the 3 pieces will communicate once they are live.\nThe site will be a lightly trafficked one where only I can add resources to the db. Additionally, what AWS services would you recommend for hosting each part?\nThanks kindly.  And please let me know if I can provide any more helpful info.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":29,"Q_Id":72705509,"Users Score":0,"Answer":"One service that you can look at would be aws lightsail that can spin up your application and connect to your database and is designed for hosting such applications.\nAnother way would be to have your python app send request to an AWS lambda using api gateway and the lambda executes your SQL command and returns back the data. These are 2 ways one more service you can explore is AWS amplify that can do the same as well","Q_Score":0,"Tags":"javascript,python,postgresql,amazon-web-services,deployment","A_Id":72706360,"CreationDate":"2022-06-21T18:22:00.000","Title":"Deploying a JS\/Python\/PostgresQL app on AWS","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"What I want to do - Now I want to crawl the contents (similar to stock prices of companies) in a website. The value of each element (i.e. stock price) is updated every 1s. However, this web is a lazy-loaded page, so only 5 elements are visible at a time, meanwhile, I need to collect all data from ~200 elements.\nWhat I tried - I use Python Splinter to get the data in the div.class of the elements, however, only 5-10 elements surrounding the current view appear in the HTML code. I tried scrolling down the browser, then I can get the next elements (stock prices of next companies), but the information of the prior elements is no longer available. This process (scrolling down and get new data) is too slow and when I can finish getting all 200 elements, the first element's value was changed several times.\nSo, can you suggest some approaches to handle this issue? Is there any way to force the browser to load all contents instead of lazy-loading?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":83,"Q_Id":72729352,"Users Score":0,"Answer":"there is not the one right way. It depends on how is the website working in background. Normaly there are two options if its a lazy loaded page.\n\nSelenium. It executes all js scripts and \"merges\" all requests from the background to a complete page like a normal webbrowser.\n\nAccess the API. In this case you dont have to care for the ui and dynamicly hidden elements. The API gives you access to all data on the webpage, often more than displayed.\n\n\nIn your case, if there is an update every second it sounds like a\nstream connection (maybe webstream). So try to figure out how the\nwebsite gets its data and then try to scrape the api endpoint directly.\nWhat page is it?","Q_Score":0,"Tags":"python,selenium,dynamic,lazy-loading,splinter","A_Id":72787548,"CreationDate":"2022-06-23T11:26:00.000","Title":"In Python Splinter\/Selenium, how to load all contents in a lazy-load web page","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to launch a server on Heroku using Flask and Gunicorn. I have a Procfile which I have both tried creating using echo \"web: gunicorn annallAPI:app\" > Procfile\nand with adding the line to a Procfile in vs code. Still everytime I get:\nremote: -----> Discovering process types remote:        Procfile declares types -> (none)\nI have seen problems point to the wrong name, f.x. if it is ProcFile and another pointing to the incorrect encoding, saying it needs to be UTF-8. I have the correct name and I can't convert to UTF-8 because the original_charset has UTF-8.\nThe build succeeds and then if I make a request to the server, it of course fails. For the record, I am using an M1 Mac.\nThe error I get in the Heroku log is:\nat=error code=H14 desc=\"No web processes running\" method=GET path=\"\/\" host=xxx-api.herokuapp.com request_id=65f19b67-87a1-46bf-84f4-20f4ab36e85b fwd=\"130.208.240.12\" dyno= connect= service= status=503 bytes= protocol=https\nI tried doing heroku ps:scale web=1 to start a web process which I don't think should work if the Procfile doesn't have a set web process. It gave me the error:\nScaling dynos... ! \u25b8    Couldn't find that process type (web).","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":36,"Q_Id":72746164,"Users Score":0,"Answer":"Make sure that you have created requirements.txt which lists out all libraries including gunicorn\n\nCreate Procfile - this file basically has no extension and contains web: gunicorn yourwsginame:app\nPersonally, I recommend you create this file manually and edit it using a text editor","Q_Score":0,"Tags":"python,flask,heroku","A_Id":72746366,"CreationDate":"2022-06-24T15:17:00.000","Title":"Heroku Procfile not finding web process","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"Static files load when DEBUG=True (locally and at the dev server), but not when DEBUG=False (production).\nSTATICFILES_DIRS is set to my dist dir created by Vue, and dist is not in the .gitignore. Heroku runs collectstatic on every deploy by default (I have not changed this).\nThe actual error is a 404 when trying to load any static file. The whitenoise package is being used. I've updated the middleware settings, and wsgi.py according to the docs, and have the settings variable which enables compression via whitenoise set (also according to the whitenoise docs).\nwhitenoise usually works fine with other apps. I'm not sure what's wrong with this. The difference is that I'm using Vue for the first time. I'd never used a js framework before.\nWhen setting DEBUG=False locally, staticfiles still load fine, so I am unable to debug in that way.\nCan anyone help?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":145,"Q_Id":72755308,"Users Score":0,"Answer":"django-heroku was the problem. In my settings I was using django-heroku. Removing it got staticfiles to load at production.","Q_Score":2,"Tags":"python,django,vue.js,heroku","A_Id":72794597,"CreationDate":"2022-06-25T15:56:00.000","Title":"Django\/Vue -> Heroku: Static files not loading at production server","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am new to django and trying to create a web app to upload and download files to the google drive using gdriveapi.\nI have gone through the python quickstart for Google drive and tried the code in manage.py where it is working.\nHow to write the same code to obtain credentials and upload and download in the django app?\nHow to write the view and model in django to obtain credentials and upload files to gdrive?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":183,"Q_Id":72767056,"Users Score":0,"Answer":"for my model field I use file = models.FileField(upload_to='todo', storage=gd_storage, blank=True, null=True), where todo is the app name. For the view I simply used the generic ModelViewSet, where you can just serializer.save(file=self.request.data['file'])","Q_Score":0,"Tags":"python,django,google-drive-api","A_Id":72770483,"CreationDate":"2022-06-27T04:38:00.000","Title":"Django upload and download files in google drive using googledriveapi","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm using a basic Ubuntu 18.04 VPS and I've been using gunicorn3 for a while. I've decided to upgrade to python3.8, however, it's unclear how to make gunicorn3 run python3.8 applications. Is there any way to do so?\nThanks!","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":54,"Q_Id":72776428,"Users Score":0,"Answer":"It seems that there's a package for this called gunicorn3 (this was tested on ubuntu)\nsudo apt-get install gunicorn3\nthen running the following command should work and run gunicorn with python3:\ngunicorn3 --log-level debug --bind 0.0.0.0:30443 server:app","Q_Score":0,"Tags":"python-3.x,gunicorn,ubuntu-18.04","A_Id":72776464,"CreationDate":"2022-06-27T17:52:00.000","Title":"How do I upgrade gunicorn3 to use python3.8 instead of python3.6?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have 3 database tables:\n\nusers (stores info about users e.g. email, name)\nmetadata (stores data)\nactivity (stores changes made to users\/metadata tables)\n\nI want to achieve the following:\n\nto store any change into the activity table (e.g. new user is created, a user updates the metadata table)\nto send notifications to users whenever a change into the users\/metadata tables happens.\n\nWhat are the libraries\/method that I could use in order to achieve the desired functionalities? Thank you!","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":92,"Q_Id":72785265,"Users Score":0,"Answer":"in addition to django signals which wes already recommended, you can also check out django channels + django activity stream","Q_Score":0,"Tags":"python,django,database","A_Id":72786710,"CreationDate":"2022-06-28T11:01:00.000","Title":"Django: send notifications at user based on database change","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"We would like to bring one of our layout algorithms, which is implemented in Python, to Cytoscape. As Cytoscape apps are written in Java, I was wondering whether some of you has an idea on how to easily bring it to Cytoscape without rewriting the Algorithm in Java.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":34,"Q_Id":72792896,"Users Score":0,"Answer":"I believe Dexter already reached out to you, but the easiest path would be to use a REST service of some sort, either a local one or one on a remote server.\n-- scooter","Q_Score":1,"Tags":"python,java,networking,cytoscape","A_Id":72818436,"CreationDate":"2022-06-28T20:38:00.000","Title":"Bringing Python layout algorithm to Cytoscape","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I made an API for my personal use in the Flask without any database, I want to add token authentication to that API without any user Sign Up. I want, can generate a JWT and send that to the server then Server can verify that JWT is valid then send a response else give an unauthorized error. it must check when I request any endpoint of my API.\nthanks in Advance.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":135,"Q_Id":72794687,"Users Score":0,"Answer":"This is an unusual approach. Usually server generates the token and set the claims such as expiry time etc. You're talking about opposite approach where the client is generating the token which means set those claims accordingly. I'm not sure whether you're facing any technical challenge while going with standardized approach where server issue the tokens to client. The client responsibility will be to pass the token in each request and the server will validate each requests by validating the token passed in the request.","Q_Score":0,"Tags":"python,jwt,flask-jwt-extended,flask-jwt","A_Id":72795113,"CreationDate":"2022-06-29T01:04:00.000","Title":"create a function that generate a JWT token and send to server the server will verify that token and give response if token is valid","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I don't have a lot of website experience. I'm trying to get my site up and running.\nI have a secret environment variable on my Heroku app that I want to pass into a static file. Is there a way to do this securely? I've decided I don't care if bad actors can see the file, I just don't want them seeing the key.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":54,"Q_Id":72810526,"Users Score":0,"Answer":"There are multiple ways to achieve this. How is your project set up?\nAre you able to modify the js file?\nYou can write a function that sends a xhr request to your django server and the server sends the env variable value as result.\nIs the static js file stored with your django backend?\nYou can parse and then write the file with the env var value. If you know the structure you can put it in appropriate scope, otherwise you can just put a global const varname = env_value or document.varname = env_value at the top of your file (This is not ideal)","Q_Score":0,"Tags":"python,django,security,heroku","A_Id":72810609,"CreationDate":"2022-06-30T05:04:00.000","Title":"Is there a way to pass a secret Heroku environment variable in my Django project to a static Javascript file?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am a reasonably experienced amateur python coder.  With this site's help I have fought my way through, celery, channels, websockets, NGINX, docker etc etc to produce a website which controls my astronomy dome and some house automation.\nPart of the astronomy setup is a 3rd party weather station which collects data (temperature, wind speed, humidity, brightness, rain etc) and distributes a json file every 15 secs.  I have successfully coded pyhton \/ Django \/ Plotly to collect the data and produce one graph (temperature).  I have successful embedded this graph in a webpage.\nThe next step is to add a drop down box as a choice mechanism for what data (e.g. temperature or bightness) to show in the graph.\nI think I can do this with websocket calls.\nShould I use Dash instead ?  I have found plotly relatively easy to use and I am attracted to the idea of using the bootstrap plugin to manage bootstrap in python code as opposed to in an html page.\nbut\nProblem:  installing Django-Plotly-Dash v2.0 downgrades django (v4.0.5 to 3.2.13), daphne (v3.0.2 to 2.5.0) and channels (v3.0.4 to 2.4.0).   I'm not sure if that is going to 'break' anything but since everything is 'dockerised' troubleshooting broken code is not something I want to do, if I can avoid it.\nProblem: I would need to 'move' bootstrap code from html to python...... shouldn't be an issue ?  Just time consuming ?\nOpinions from anyone with experience of using Django with Plotly and Dash would be most welcome.  Thank you","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":768,"Q_Id":72817304,"Users Score":0,"Answer":"Downgrading and upgrading versions can definitely break your project. Especially when you are downgrading major versions.\nFor your next project you should use the LTS version, not the latest. Especially if you intend to use that code in a production environment. Tools' developers will consider supporting LTS versions and not the latest versions. The current LTS version for Django is 3.2.\nAccording to the roadmap the next LTS version will be 4.2 in 2023.\nI'd consider just using plotly or another library because you have to downgrade many packages to support Dash. Unless you decide to downgrade to use the LTS version.","Q_Score":0,"Tags":"python,django,plotly,plotly-dash","A_Id":73572612,"CreationDate":"2022-06-30T14:09:00.000","Title":"Plotly in Django should I use Dash?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Im new using Selenium Webdriver and i couldn't automate a confirmation javascript onclick button, these button can't inspect to see the xpath;\nthe html button is:\n<input type=\"button\" class=\"ButtonEnable\" name=\"Reset\" id=\"Reset\" value=\"Borrar todos los contadores \" onclick=\"javascript:CallBack_Reset()\">\nand i try with the name or id\nweb_element = driver.find_element(By.NAME, 'Reset').click()\nbut appear a pop-up window with a confirmation","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":28,"Q_Id":72821475,"Users Score":0,"Answer":"Update. I resolve it.\nI use a selenium condition (alert) to javascript callback push-up windows.\nthe code to resolve it:\nweb_element = driver.find_element(By.NAME, 'Reset').click() WebDriverWait(driver, 5).until(EC.alert_is_present(), '\u00bfDesea borrar todos los contadores?') alert = driver.switch_to.alert alert.accept()","Q_Score":0,"Tags":"javascript,python,selenium","A_Id":72860926,"CreationDate":"2022-06-30T20:09:00.000","Title":"Automate selenium webdriver python onclick javascript double confirmation","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"So, I am trying to build an automation web app where I can upload pdf files, and then a python code will run which extracts certain data from the uploaded pdf files.\nI know how to make a python code that takes a pdf from my local system and extracts the required data, but how do I make the code use the uploaded pdf files on the web app?\nI plan to deploy this website where the python code can be run on any system using the website, so how exactly do I pass the uploaded file as input to the python code?\nAlso, will using Flask make it easier to approach this?","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":117,"Q_Id":72826337,"Users Score":1,"Answer":"sounds like you want to deploy one website, then the end user can access the web page and upload pdf file, web service accept the request and run python script to parse data from uploaded pdf, right?\nif above is correct, seems you can save the pdf on the serverside, and deploy another cronjob to monitor the path, if new pdf file reached, can trigger python script running.","Q_Score":0,"Tags":"python,flask,pdf,web,automation","A_Id":72865786,"CreationDate":"2022-07-01T08:18:00.000","Title":"How to pass drag and dropped file in web app as input to python code?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"while I was launching my ml model using heroku the build logs show that\nCould not install packages due to an OSError: [Errno 2] No such file or directory: '\/C:\/Windows\/TEMP\/abs_e9b7158a-aa56-4a5b-87b6-c00d295b01fanefpc8_o\/croots\/recipe\/certifi_1655968940823\/work\/certifi'\nplz help to fix this","AnswerCount":3,"Available Count":2,"Score":0.1325487884,"is_accepted":false,"ViewCount":3700,"Q_Id":72831972,"Users Score":2,"Answer":"I had the same error in a local computer with Windows 10.\nI unistalled certifi: pip uninstall certifi\nand then installed it again: pip install certifi\nAnd it works.\nI have noticed problem doing requirements file in completely new project.","Q_Score":2,"Tags":"python,heroku","A_Id":72997271,"CreationDate":"2022-07-01T16:06:00.000","Title":"Could not install packages due to an OSError: [Errno 2] No such file or directory: '\/C:\/Windows\/TEMP\/abs_e9b7158a-aa56-4a5b-87b6-c00d295b01fanefpc8_o\/","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"while I was launching my ml model using heroku the build logs show that\nCould not install packages due to an OSError: [Errno 2] No such file or directory: '\/C:\/Windows\/TEMP\/abs_e9b7158a-aa56-4a5b-87b6-c00d295b01fanefpc8_o\/croots\/recipe\/certifi_1655968940823\/work\/certifi'\nplz help to fix this","AnswerCount":3,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":3700,"Q_Id":72831972,"Users Score":0,"Answer":"If the error originates from Heroku logs it is most likely that you hard coded a path to the directory in your code( Because heroku does not have a directory as \/C:\/Windows\/TEMP in deployment).\nOtherwise please share the code so we can help trace where the error originates :)","Q_Score":2,"Tags":"python,heroku","A_Id":72832260,"CreationDate":"2022-07-01T16:06:00.000","Title":"Could not install packages due to an OSError: [Errno 2] No such file or directory: '\/C:\/Windows\/TEMP\/abs_e9b7158a-aa56-4a5b-87b6-c00d295b01fanefpc8_o\/","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have created a multilingual website using Django i18n. But later I needed to change the default language (before LANGUAGE_CODE='ru') to one of those that were in the LANGUAGES configuration setting (now LANGUAGE_CODE='uk').\nAfter that, when the user opens this site and selects the language 'ru', the translation does not work correctly. The models translate correctly, but the templates remain in 'uk'.\nAt the same time, when the user opens this website and selects the language 'uk' or 'en', the translation works without problems.\nTell me please, what is the reason and how can I solve this problem, or at least where it would be reasonable to search?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":48,"Q_Id":72839421,"Users Score":0,"Answer":"The problem was that the translation from Russian into Russian was not completed, so the translation from Russian into Ukrainian was taken.\nWhile the default was Russian, no translation was made at all, since there is no translation to this node in the default language. And when it became Ukrainian, in the absence of a translation, translation into Ukrainian began to be used.","Q_Score":0,"Tags":"python-3.x,django,internationalization,django-i18n","A_Id":72936312,"CreationDate":"2022-07-02T13:30:00.000","Title":"Django, i18n, problems with translation after changing LANGUAGE_CODE","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I've been trying to find a way to convert POST data from a request\nwhen i print the data this is what i get b'message=sdfa&arent=gfsdgd&btn3=pressed'\nI've tried different ways to get it ive used replace but i realized that wasnt gonna work i saw that flask does something like this but id have to rewrite all my code using it\ni am using http.server and i was wondering if i could have the output formatted like json so were i could use something like value[\"message\"] and it would give me what is inside the message\nthis is my first time using stack overflow so im sorry if i dont make sense or look stupid","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":13,"Q_Id":72851410,"Users Score":0,"Answer":"question was answered by a comment\nThere is a library that formats a link into practically a json file\nthe library is called urllib\nbig thanks to metatoaster","Q_Score":0,"Tags":"python,webserver","A_Id":72851507,"CreationDate":"2022-07-04T03:09:00.000","Title":"how to converate post data into variables that i can use in python","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"This question will likely betray my inexperience in web development, so please let me know if I'm solving entirely the wrong problem.\nI'm building a web application where users are asked to upload a data file. After uploading, the users are shown some aggregate statistics of the data contained in the file to help catch any errors. The user can then confirm this is the right data. Only then will the file will be stored somewhere on other people's computers in the cloud.\nI Django, I have defined three views\/templates:\n\nUpload: the template contains the form that allows the user to select a file to upload.\nCheck: the template shows the aggregate statistics and contains a form with buttons to go back or confirm that the uploaded file is correct.\nConfirm: the page shows that the file was stored.\n\nThe problem is that the file is uploaded in the Upload view\/template; but I only want to determine the aggregate statistics on the Check page and store the file after the user has confirmed its aggregate statistics in the Check view\/template. I'm not sure how I can pass the file (which will be an InMemoryUploadFile object) from the Upload view to the Check view.\nPerhaps I'm trying to solve this the wrong way and I should find out a way to do the Check on the same page as the Upload form.\nEdit: I have a working solution that feels hacky and not like the right way. Since the data file contains text, I can read its contents and store it in a string. In the Upoad view, I can add this string to the session by storing it in request.session[\"file_contents\"]. This request is then passed to the next view when I redirect from the Upload view to the Check view.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":47,"Q_Id":72866499,"Users Score":1,"Answer":"I see your problem can be solved in two ways:\na) InMemoryUploadFile will be deleted after your view (function) returns something.\n\nUser send file on view_reciever, where this file will be processed with your business logic, and saved on the cloud and returned to a user as statistic for confirmation, whether it is good or not.\nIf file is good, then it is already saved on your cloud.\nIf it is bad - then delete it.\n\nb) Using Ajax request:\n\nUser can send file to a view which will only process your file\nand return statistics via ajax request.\nIf it is good for user, he can send new ajax request with this file, and it would save file in the cloud.\nIf it is bad, do nothing (but userfriendly) (it isn't stored on your cloud anyway).","Q_Score":1,"Tags":"python,django","A_Id":72866985,"CreationDate":"2022-07-05T08:46:00.000","Title":"How to pass arbitrary Python object (e.g. InMemoryUploadFile) to a different Django view","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Which one would be the standardised way to check if any record exists in a table? We can use either model.objects.all().exists() or model.objects.exists(). But which one should be the standard practice?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":85,"Q_Id":72879657,"Users Score":1,"Answer":"i would prefer model.objects.exists() because it's less code to write. As mentioned in comment - both produce the same query","Q_Score":0,"Tags":"python-3.x,django,django-views","A_Id":72881457,"CreationDate":"2022-07-06T07:44:00.000","Title":"Django - model.objects.all.exists() vs model.objects.exists()","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Today I come with this question probably to someone who has large experience in this.\nBasically what the title indicates. We have that app and we have to migrate it to microservices.\nWe didn't find any solid approach (or we felt it like that) about this. What we ended up doing is creating 1 project per microservice (a single functionality related to a module app, in general) but then we had some problems because we already had a database to work with since this is already a functioning app.\nWe had problems communicating with the existing models, so basically what we did was to point in every settings.py of the projects to the existing DB, and with python3 manage.py inspectdb, we grabbed the existing models. This approach ended up working, but we feel that is not the best approach. We had a lot of problems with circular imports and more.\nIs out there good practices about microservices with Django, and how to properly do it, like in most of the cases that we want to create something with the framework?\nIf someone knows or has something we would really appreciate it!","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":263,"Q_Id":72914225,"Users Score":0,"Answer":"you can use Django for Microservices. in this case you have only one few apps, and you start every service on own port:\nfirst Django project\npdf generator + views generate small pdf\nsecond Django project.\npdf generator + views generate big pdf (code can inherit other project)\norchestra:\nthird Django project: Autorization + call big or small pdf generator service\nsettings\nsettings.py for first and second is very easy and allows only call from internal ip's. here we don't need middleaware, template, cache, admin and other settings.\nsettings.py for orchestra is also very easy and used only auth and made call by internal ip ant send response to user. Here we don't need much middlaware, and don't need many other settings.\ngains:\n\nAll is independent. if one server fall, other can work.\nUpdates are easy. One small server update is always easy than monolith update.\ndevelopment is easy: three small teams works on own small projects.\nUnits testing is easy and fast\nFor complex business goals the whole system is faster.\n\npains:\n\nafter 100 micro-services it is completely complex to work with that all.\ncode style from many teams is always different. Don't matter how strict you define styleguide or settings for black-linter.\nintegrate Testing is difficult - If something not work, it is hard to find where.\nEcosystem Auth\/services\/messaging is really complex\nFor easy business goals the whole system is overcomplicated.\n\nsummary\nDon't matter how much DB you want to use. it can be monolith or many services.\ni don't see any problem to import in one Microservice something from other project: it can be model \/ admin or other staff. it works. probably you need to smart split monolith, but it also easy, for that we have a many experience (my own and in internet or books)","Q_Score":2,"Tags":"python,django,microservices,django-migrations,monolithic","A_Id":72914977,"CreationDate":"2022-07-08T16:14:00.000","Title":"How to properly migrate a monolith architecture app to a microservice app in Django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am unsure what tags to give this but I am using Selenium in python so I decided to start here. I am scraping a website thousands of times using selenium and requests in python. It starts fairly quickly but around the 3400 page load mark it slows down from around .1 seconds to 3 or 4 seconds. Any ideas on what is slowing the webpages loading. The program is being run on a very low power Linode (1 shared cpu and 1gb of ram). The cpu is pegged from the beginning when it is still running fast and from what I can tell, it is not using all the RAM. I also gave it a 10 gb swap. My internet download and upload is above 200 MB\/s. I was thinking the website host themselves are limiting me but I don't know this stuff well enough to be sure.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":35,"Q_Id":72915457,"Users Score":0,"Answer":"Pretty sure it's the host. If they are limiting by your IP, you may want to use some proxies. If the website is on shared hosting or some low cost hosting then proxies won't help.","Q_Score":0,"Tags":"python,selenium","A_Id":72917322,"CreationDate":"2022-07-08T18:16:00.000","Title":"Websites are taking a long time to load when scraping","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am creating an application in which a user registers with a username, email, and password.\nThis data is stored in one table.\nBut then the user enters profile information such as photo, bio, activity and such. Do I store this data in the same table as the username, email, and password? Or do I create another table in which I link those in some way?","AnswerCount":3,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":66,"Q_Id":72931426,"Users Score":0,"Answer":"You want to extend User model to have other information. The recomended approach for this is to create another model like Profile and setup OneToOne relation to the User.","Q_Score":0,"Tags":"python,django,database,postgresql,backend","A_Id":72931447,"CreationDate":"2022-07-10T19:46:00.000","Title":"Where do I store user personal information","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to capture the raw request payload and request headers for the purpose of tracking inside my database. I know about the response.request.headers but that is the returned request headers.\nWould it be possible to create a middleware that captures the request.headers and payload (body) and send that to the spider as a meta tag or anything like that?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":50,"Q_Id":72955582,"Users Score":0,"Answer":"I found a way to do it (granted without the middleware):\n\nStore the scrapy.Request() into a variable e.g. req\nStore req.headers.to_unicode_dict() into self.req_headers\nStore req.body into self.req_body\nExecute yield req to send the request","Q_Score":0,"Tags":"python,scrapy,middleware","A_Id":72955692,"CreationDate":"2022-07-12T16:31:00.000","Title":"Scrapy: Pass variable from Middleware to Spider itself","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have used spring framework for developing server application, and now I start to learn Django.\nI got one question when I use Django.\n\"Is there no issue about memory when using @classmethod or @staticmethod? in python\"\nIn spring(java), there is issue about abusing static and spring also support controlling object(IoC container).\nBut when I use Django, there is no decorator or setting about object.\nJust I use @classmethod, and use it with class name (ex. AccountService.join() )","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":74,"Q_Id":72960099,"Users Score":0,"Answer":"In \"normal use\", this is fine. Class methods do not get access to instance data, and static methods don't get access to the parent class. If these are not issues for you, then you can use @classmethod or @staticmethod respectively. In reality though, semantic\/readability benefits aside, this is likely premature optimisation, especially in a web application context where the lion's share of latency\/resources go to other things.","Q_Score":0,"Tags":"python,django","A_Id":72961858,"CreationDate":"2022-07-13T01:57:00.000","Title":"Is it okay to abuse @classmethod and @staticmethod In python?(Django)","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Im trying to deploy django application on cpanel\nBut as I setup python3.7.12 but it detecting python2.6.6\nIm tried please help me","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":73,"Q_Id":72961387,"Users Score":0,"Answer":"If you have deployed Python 3.7 via the Python Selector inside cPanel, it actually creates a virtual environment with that version.\nPython 2.6 is most probably the default global one on your hosted server.\nIn order to be able to use the 3.7 version, you will need to enter inside the virtual environment.\nTo do that, go to your cPanel -> Setup Python App, edit your newly deployed app, and at the top of the page, you will have a command that you can copy\/paste in SSH to enter into that environment.","Q_Score":0,"Tags":"python-3.x,django,cpanel","A_Id":72992653,"CreationDate":"2022-07-13T05:37:00.000","Title":"Cpanel python detecting wrong version","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Im trying to deploy django application on cpanel\nBut as I setup python3.7.12 but it detecting python2.6.6\nIm tried please help me","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":73,"Q_Id":72961387,"Users Score":0,"Answer":"We have to edit .htaccess file\nIn this file we can set the python3 virtual enviroment path.\nIf we have root privilages then we can also edit application.json file and change defualt python path\nBut we can edit .htaccess file it easy to create","Q_Score":0,"Tags":"python-3.x,django,cpanel","A_Id":73004549,"CreationDate":"2022-07-13T05:37:00.000","Title":"Cpanel python detecting wrong version","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm trying to implement multiple SSO (OpenID Connect) logins in my application, besides the regular one.\nThe current provider requests are Azure and Okta, but there will be more.\nFor every bigger customer using my application, I want to be able to enable them a custom SSO login that they can setup in the admin panel.\nAll the libraries I've tried using for this are either using settings.py and local django authentication, or they are deprecated.\nThe flow is like this:\nUser chooses their company and SSO login button -> Gets redirected to login -> I send the client id, secret etc. (which they entered in the admin panel when registering an sso connection) -> I get a token in return with the users name and email -> with this info (email) I find the already existing user in my local database and log him in","AnswerCount":3,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":472,"Q_Id":72963273,"Users Score":0,"Answer":"User chooses their company and SSO login button\n\n\n\nOK, you can just simply put the buttons on your website.\n\n\n\nGets redirected to login\n\n\n\nYou can imlpement \/redirect endpoint and make sure do something to ready for getting user information from OAuth2 provider.\n\n\n\nI send the client id, secret etc. (which they entered in the admin panel when registering an sso connection)\n\n\n\nThis is also continue of step 2. but I don't know how to connect with Django admin panel. sorry.\n\n\n\nI get a token in return with the users name and email\n\n\n\nUse OAuth2 provider's user info API. So you can get user's information whatever you want as much as they give.\n\n\n\nwith this info (email) I find the already existing user in my local database and log him in\n\n\n\nJust write a function with database. it is not hard.\nI think that's enough to implement this.\nbut that they can setup in the admin panel.\nI can't sure you can customize \"already made\" Django admin panel. That may be hard to do.","Q_Score":1,"Tags":"python,django,single-sign-on,openid-connect,openid","A_Id":73008679,"CreationDate":"2022-07-13T08:41:00.000","Title":"How to implement OpenID Connect with multiple providers in Django?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm working on a python-django project.\nIf a have a class where one of its attributes have\n\nmax_length=100\n\nhow can I change to\n\nmax_length=5000\n\n? for instance...\nThank you!","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":96,"Q_Id":72971938,"Users Score":0,"Answer":"Basically when you edit a field on a Model you need to makemigrations and migrate for changes to take effect in database.  \npython manage.py makemigrations <optional_appname(If not provided it affects all apps.)> \npython manage.py migrate <optional_appname>","Q_Score":0,"Tags":"python,django,model","A_Id":72972788,"CreationDate":"2022-07-13T19:56:00.000","Title":"modify max_length models python django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I use jpg file for image but when I run my app in phone it won't open but it works for PNG file.\nAnd also for audio file I use mp3, OGG file my app won't open but when I use wav file my app works but the sound doesn't come.\nAnd for font file, both TTF and OTF extension won't work i.e. my app won't work","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":62,"Q_Id":72980383,"Users Score":0,"Answer":"I solve my problem a bit, now the wav file is working correctly because I add the extension of wav file in the google colab file which  created after the compilation of my files (Buildozer.spec) but the problem with jpg is still there and for mp3 also","Q_Score":0,"Tags":"python,android,kivy,google-colaboratory,extension-methods","A_Id":72989784,"CreationDate":"2022-07-14T12:19:00.000","Title":"I am converting a python\/kivy project to apk in google colab and some extension are not working so what extension I should use for audio\/font file?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":1,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Have a model in django that has a json field with list of IDs\nto a different model.\nHow can we validate the inputs to that field are valid foreign key.\nNot using many to many field or a joining model separately.","AnswerCount":2,"Available Count":2,"Score":1.2,"is_accepted":true,"ViewCount":53,"Q_Id":72985351,"Users Score":1,"Answer":"This seems like a strange way of doing things but your best option would be to get a list of your valid IDs with MyModel.objects.all().values_list('id', flat=True) and compare your JSON data with the resulting list","Q_Score":0,"Tags":"python-3.x,django,django-models,django-rest-framework","A_Id":72985640,"CreationDate":"2022-07-14T18:48:00.000","Title":"Validate soft foreign key Django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Have a model in django that has a json field with list of IDs\nto a different model.\nHow can we validate the inputs to that field are valid foreign key.\nNot using many to many field or a joining model separately.","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":53,"Q_Id":72985351,"Users Score":0,"Answer":"Another way to do it is compere jsonlist lenght with this count: MyModel.objects.filter(id__in=jsonlist).count()","Q_Score":0,"Tags":"python-3.x,django,django-models,django-rest-framework","A_Id":72985885,"CreationDate":"2022-07-14T18:48:00.000","Title":"Validate soft foreign key Django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I was trying to get Django installed onto my Pycharm.\nIn Terminal, I typed in\n\npython -m pip install Django\n\nWhen I pressed enter on the information,\nIt told me:\nPython was not found; run without arguments to install from the Microsoft Store, or disable this shortcut from Settings > Manage App Execution Aliases.\nI already have Python installed and put it as the base interpreter for the file. Not sure why Pycharm wants me to install it from the Microsoft store???\nPlease help!","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":2157,"Q_Id":72989495,"Users Score":0,"Answer":"Either search for the exe und run it like {pathtoexe}\/python.exe -m pip install Django or try python3instead of python. In addition to that you can check your path variables where you should find the actual command.","Q_Score":0,"Tags":"python,django,pycharm","A_Id":72989606,"CreationDate":"2022-07-15T05:41:00.000","Title":"Pycharm : Python was not found; run without arguments to install from the Microsoft Store, or disable this shortcut from Settings","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"Is it possible to run python script, which I will upload on Heroku or DG Ocean droplet (depending on which of them is most comfortable for what I am trying to do), from external website button?\nMy scenario: I have scrapper and I want to run it when user clicks on button on my webpage, so scrapper will scrape current data and will show it to user. Is it possible to do? or if we have any other way?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":28,"Q_Id":72989547,"Users Score":0,"Answer":"For others, who will have same things in the feature:  So, i am going to make FLASK app to use DG Droplet or Heroku, after i will import Flask app using Iframe in my Web project and use only BUTTON, like this i will use my scraper on my Webpage.\nThanks","Q_Score":0,"Tags":"python,php,selenium,heroku,digital-ocean","A_Id":72993335,"CreationDate":"2022-07-15T05:49:00.000","Title":"Run Python script On Heroku or DG Ocean when click button on web","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have strings in the database that are the names of countries and cities for example like this:\nItaly-Milan OR France-Paris.\nHow can i select only the city part, like select what comes only after the '-' using python?","AnswerCount":3,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":43,"Q_Id":73003090,"Users Score":0,"Answer":"If data is the variable having you city value and other info than to get only the city name\ndata.split(\"-\")[1]","Q_Score":0,"Tags":"python,django","A_Id":73004031,"CreationDate":"2022-07-16T09:32:00.000","Title":"how to select a specific part of a string Django?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I've set up I18n for my Python3 Django4.0 app and it runs locally without problems. When I deploy it to GAE standard the translated text isn't shown. The active language changes, but the text does not change.\nThe catalog files exist, but it looks like they are not being loaded.\nI am aware that GAE-standard only allows access to tmp\/ directory. Could this be the reason? Are there particular cache requirements?\nAny advice or examples would be super useful.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":30,"Q_Id":73013328,"Users Score":2,"Answer":"The problem was caused by an auto-generated .gcloudignore file including .mo files.\nIf the .mo file (created by running makemessages) doesnt exist, django wont raise any errors.","Q_Score":0,"Tags":"python-3.x,django,google-app-engine,django-i18n,django-cache","A_Id":73013942,"CreationDate":"2022-07-17T16:04:00.000","Title":"Cannot load translation catalog for Django I18n on Google App Engine Standard","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I used Forge API to post projects in BI360, now I am trying to add few users using the data frame of the projects created. According to the Forge Documentation you can post users to one project, looking for  an advise how to post users to several projects\nTIA","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":37,"Q_Id":73026486,"Users Score":0,"Answer":"I checked, and all endpoints take only one project id, so you have to loop through multiple projects and add the user(s) to all projects, currently not possible in one call.","Q_Score":0,"Tags":"python,forge,autodesk-bim360","A_Id":73206529,"CreationDate":"2022-07-18T17:44:00.000","Title":"Batch add users to BIM360","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm a Java Spring boot developer and I develop 3-tier crud applications. I talked to a guy who seemed knowledgeable on the subject, but I didn't get his contact details. He was advocating for Python's FastApi, because horizontally it scales better than Spring boot. One of the reasons he mentioned is that FastApi is single-threaded. When the thread encounters a database lookup (or other work the can be done asyncly), it picks up other work to later return to the current work when the database results have come in. In Java, when you have many requests pending, the thread pool may get exhausted.\nI don't understand this reasoning a 100%. Let me play the devil's advocate. When the Python program encounters an async call, it must somehow store the program pointer somewhere, to remember where it needs to continue later. I know that that place where the program pointer is stored is not at all a thread, but I have to give it some name, so let's call it a \"logical thread\". In Python , you can have many logical threads that are waiting. In Java, you can have a thread pool with many real threads that are waiting. To me, the only difference seems to be that Java's threads are managed at the operating system level, whereas Python's \"logical threads\" are managed by Python or FastApi. Why are real threads that are waiting in a thread pool so much more expensive than logical threads that are waiting? If most of my threads are waiting, why can't I just increase the thread pool size to avoid exhaustion?","AnswerCount":3,"Available Count":1,"Score":0.0665680765,"is_accepted":false,"ViewCount":3609,"Q_Id":73026698,"Users Score":1,"Answer":"FastAPI is a fast framework, and you can quickly (and easily) create API backends in it. To be honest, if you are a Java developer, I would recommend Quarkus or something for building a REST API, not FastAPI. FastAPI is a fantastic tool, absolutely great if you are already in the Python ecosystem.\nWhen it goes about multithreading; Java is 'real' multithreading where as Python is very much not. Java threads will run concurrently; two tasks can and will be executed at the same time. In Python, within one Python process, this is (nearly) impossible. The reason for this is GIL (google it, there is ton's of stuff out there on how it works). The result is; even if you use 'real' threads in Python, code is still not executed concurrently but rather serially, where the interpreter (big difference to Java) is jumping from one call stack to another constantly.\nAs to what you refer to as 'logical threads', I think you mean the asynchronous capability of Python. This is basically the same as using threads (not really, but on an abstract level they are very similar); tasks are not run concurrently. There is just one thread that constantly switches between tasks. Tasks will yield back control to the event loop (the object that coordinates tasks and decides what is executed in which order), and another task is further executed until that task yields control, etc. It is basically the same kind of execution pattern as with threads within Python.\nComparing a Python framework to a Java framework is just weird in my opinion. They are both useful and cool, but not really competitors.","Q_Score":2,"Tags":"python,java,multithreading,fastapi,project-loom","A_Id":73027651,"CreationDate":"2022-07-18T18:03:00.000","Title":"Java's Spring Boot vs Python's FastApi: Threads","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm using SQL transform of apache_beam python and deploy to Dataflow by Flex Template. The pipeline show the error: Java must be installed on this system to use. I know the SQL transform of beam python using Java, I researched the way to add Java to pipeline but all failed.\nCan you give any advice on how to fix this error? Thank a lot.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":137,"Q_Id":73034979,"Users Score":0,"Answer":"You need to have either Java8 or Java11 installed locally to start a Java expansion service to expand your SqlTransforms into Java SDK transforms. This is pipeline construction different from later pipeline execution and could be where your issue occurred.","Q_Score":1,"Tags":"python,java,sql,apache-beam","A_Id":73040886,"CreationDate":"2022-07-19T10:06:00.000","Title":"Java must be installed on this system to use this when using dataflow flex template python","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I'm trying:\nDjango-admin startproject myweb\nThis is what i see:\n'django-admin' is not recognized as the name of a cmdlet,\nfunction, script file, or operable\n\nEven i added python27\/Scripts to my pc environment variables but didn't work","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":787,"Q_Id":73036231,"Users Score":0,"Answer":"First, you need to run pip install django first without activating virtual env, if you want to install django only in virtual env then you have to activate it first and then get django installed into that only after trigger the command django-admin startproject myweb","Q_Score":0,"Tags":"python,django","A_Id":73037339,"CreationDate":"2022-07-19T11:40:00.000","Title":"How solve django-admin is not recognized...?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have owned a server based on djnago and i need to get mqtt messages from a device directly to my server without any external brokers. How to do this? I need only request response and there is no need of broadcasting. Since it is an iot application.\nWhat iam asking is is there any way to just collect a message and send back response using mqtt protocol ,or any method to create our own djnago based broker","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":168,"Q_Id":73036589,"Users Score":0,"Answer":"To use MQTT you will always need a broker running somewhere. It doesn't need to be in the same location as any of the clients that will connect to it.\nIf you currently have a Django hosting provider it is very unlikely that you will be able to use it to also host a MQTT broker as it is very likely that this will be hosted using hostname based virtual hosting.\nIf you want to run your own broker then you will need a static private IP address.\nAs well I am unaware of and Python based libraries that will help you build a broker.","Q_Score":2,"Tags":"python,django,mqtt","A_Id":73039766,"CreationDate":"2022-07-19T12:05:00.000","Title":"How to receive\/subscribe to mqtt request via django without external broker","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Any changes I make to my code aren't doing anything. I am using three things html, flask and python. Any code change I make to my python or html code is not getting implemented on the browser when I am trying to run it.IT is only running older version of the code.\nHow can I rectify this error of vscode?","AnswerCount":3,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":53,"Q_Id":73047673,"Users Score":0,"Answer":"Try to run in incognito once. Or try after clearing cache.","Q_Score":0,"Tags":"python,html,flask","A_Id":73047927,"CreationDate":"2022-07-20T07:37:00.000","Title":"VS Code not identifying any changes made to the code:","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to deploy a  python streamlit app using compute engine as my company does not provide access to app engine yet. Is there a way to deploy the app using compute engine rather than app engine on google cloud. I have searched multiple forum but unable to find relevant answers.\nSorry for the more general question; I hope someone can help me get over this hurdle or maybe point me to a resource.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":113,"Q_Id":73049228,"Users Score":0,"Answer":"If your application is containerized, I would suggest deploying it to Google Cloud Run instead of Compute Engine. Cloud Run is a serverless cloud service used to easily deploy pre-built applications. One of its main advantages is that it automates most of the resources management process. Therefore, all you have to do is to tell Cloud Run where your Docker image is, and then Cloud Run will deploy it on a serverless environment without needing to specify the optimal number of resources for example.","Q_Score":1,"Tags":"python,deployment,google-compute-engine,streamlit","A_Id":73051459,"CreationDate":"2022-07-20T09:36:00.000","Title":"How to deploy a streamlit app in compute engine","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"During the automation a third party server (Legedo - Powerdocs - OpenText) will be started and this one is not supported from my Siebel UI.\nI was using perl to controll this third party, i stopped since perl needs physicall screnns.\nMy questions are  :\n1 - How to copy \/ Extract the URL of this open session and re-use it on python  selenium script?\n2 - How to make selenium interract with this open session ?\nNote :\n1- the third party generates a new URl after each start .\n2 - Google Chrome","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":39,"Q_Id":73053636,"Users Score":0,"Answer":"Fixed using some basics of pyautogui to copy the url:\nalt + d","Q_Score":0,"Tags":"python,selenium,opentext","A_Id":73068499,"CreationDate":"2022-07-20T14:38:00.000","Title":"How to copy URL of an open chrome session OR How to make selenium iteract with an open chrome session","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm a data scientist, and I make apps using python. Where I make a lot of connections with databases, build and deploy my code on the cloud and I use models training and visualization.\nMy question is:\nIs Django useful for making non-web apps?\nif not are they any other frameworks? (similar to spring-boot for java)\nBest regards","AnswerCount":2,"Available Count":2,"Score":0.0996679946,"is_accepted":false,"ViewCount":91,"Q_Id":73065674,"Users Score":1,"Answer":"Django is a web framework which comes with many preinstalled apps. This will make your application bulkier than it is required.\nFor your usecase, you need not to use any frameworks. Just code it in python and you can use the available library to perform db operations.\nIf you are deploying your app on the cloud, and want expose some endpoints to trigger any of your internal functions, go with Flask framework. It is a light weight micro web framework","Q_Score":0,"Tags":"python,django,data-science","A_Id":73065794,"CreationDate":"2022-07-21T11:52:00.000","Title":"Can I use Django to make non-web python apps as a data scientist?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm a data scientist, and I make apps using python. Where I make a lot of connections with databases, build and deploy my code on the cloud and I use models training and visualization.\nMy question is:\nIs Django useful for making non-web apps?\nif not are they any other frameworks? (similar to spring-boot for java)\nBest regards","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":91,"Q_Id":73065674,"Users Score":0,"Answer":"I would contrast the first answer and say absolutely you can use Django with no intentions of building a front end.  The ORM is so powerful and easy to use along with the out-of-the-box signaling system among many other features.  In my opinion a little extra \"bulk\" is worth the tools you have at your disposal with it.  And of course you always have the option to add the front end later if you like.","Q_Score":0,"Tags":"python,django,data-science","A_Id":73066128,"CreationDate":"2022-07-21T11:52:00.000","Title":"Can I use Django to make non-web python apps as a data scientist?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am currently building a tool in Django for managing the design information within an engineering department. The idea is to have a common catalogue of items accessible to all projects. However, the projects would be restricted based on user groups.\nFor each project, you can import items from the catalogue and change them within the project. There is a requirement that each project must be linked to a different database.\nI am not entirely sure how to approach this problem. From what I read, the solution I came up with is to have multiple django apps. One represents the common catalogue of items (linked to its own database) and then an app for each project(which can write and read from its own database but it can additionally read also from the common items catalogue database). In this way, I can restrict what user can access what database\/project. However, the problem with this solution is that it is not DRY. All projects look the same: same models, same forms, same templates. They are just linked to different database and I do not know how to do this in a smart way (without copy-pasting entire files cause I think managing this would be a pain).\nI was thinking that this could be avoided by changing the database label when doing queries (employing the using attribute) depending on the group of the authenticated user. The problem with this is that an user can have access to multiple projects. So, I am again at a loss.","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":46,"Q_Id":73066581,"Users Score":0,"Answer":"Django apps don't segregate objects, they are a way of structuring your code base. The idea is that an app can be re-used in other projects. Having a separate app for your catalogue of items and your projects is a good idea, but having them together in one is not a problem if you have a small codebase.\nIf I have understood your post correctly, what you want is for the databases of different departments to be separate. This is essentially a multi-tenancy question which is a big topic in itself, there are a few options:\n\nCode separation - all of your projects\/departments exist in a single database and schema but are separate by code that filters departments depending on who the end user is (literally by using Django .filters()). This is easy to do but there is a risk that data could be leaked to the wrong user if you get your code wrong. I would recommend this one for your use-case.\n\nSchema separation - you are still using a single database but each department has its own schema. You would need to use Postgresql for this but once a schema has been set, there is far less chance that data is going to be visible to the wrong user. There are some Django libraries such as django-tenants that can do a lot of the heavy lifting.\n\nDatabase separation - each department has their own database. There is even less of a chance that data will be leaked but you have to manage multi-databases and it is more difficult to scale. You can manage this through django as there is support for multi-databases.\n\nApplication separation - each department not only has their own database but their own application instance. The separation is absolute but again you need to manage multiple applications on a host like Heroku, which is even less scalable.","Q_Score":0,"Tags":"python,django,database,reusability","A_Id":73067030,"CreationDate":"2022-07-21T12:52:00.000","Title":"Handling repetitive content within django apps","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am currently building a tool in Django for managing the design information within an engineering department. The idea is to have a common catalogue of items accessible to all projects. However, the projects would be restricted based on user groups.\nFor each project, you can import items from the catalogue and change them within the project. There is a requirement that each project must be linked to a different database.\nI am not entirely sure how to approach this problem. From what I read, the solution I came up with is to have multiple django apps. One represents the common catalogue of items (linked to its own database) and then an app for each project(which can write and read from its own database but it can additionally read also from the common items catalogue database). In this way, I can restrict what user can access what database\/project. However, the problem with this solution is that it is not DRY. All projects look the same: same models, same forms, same templates. They are just linked to different database and I do not know how to do this in a smart way (without copy-pasting entire files cause I think managing this would be a pain).\nI was thinking that this could be avoided by changing the database label when doing queries (employing the using attribute) depending on the group of the authenticated user. The problem with this is that an user can have access to multiple projects. So, I am again at a loss.","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":46,"Q_Id":73066581,"Users Score":0,"Answer":"It looks for me that all you need is a single application that will manage its access properly.\nIf the requirement is to have separate DBs then I will not argue that, but ... there is always small chance that separate tables in 1 DB is what they will accept","Q_Score":0,"Tags":"python,django,database,reusability","A_Id":73066967,"CreationDate":"2022-07-21T12:52:00.000","Title":"Handling repetitive content within django apps","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I use Odoo 14 enterprise hosted on premise\nI duplicated my database then I had this error :  502 Bad Gateway nginx\/1.14.0 (Ubuntu)\nI restart the nginx and Odoo service, nothing change.\nhow can I solve it ?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":263,"Q_Id":73066738,"Users Score":0,"Answer":"First enter to the database user,then stop the server and next go for restart","Q_Score":0,"Tags":"python,ubuntu,nginx,odoo,odoo-14","A_Id":73370856,"CreationDate":"2022-07-21T13:02:00.000","Title":"502 Bad Gateway nginx\/1.14.0 (Ubuntu) odoo14","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"My hello message is not visible...\nI'm writing a 3D video game using Python (3.10) language with Panda3d (1.10) as 3D game engine.\nSome graphical parts of the game are not 3D, there are just 2D elements:\n\nspell bar,\nplayer resume\nquest panel\nskill tree\netc\nspells\/attacks book\nand others\n\nI see on the web that pictures are used to styling Panda3D Direct* components.\nHowever, in my opinion, I think use statics pictures (.png for exemple) is not efficient when game design must be evolved. That's why I prefer use HTML\/CSS to render 2D elements, especially since CSS is very powerful if you know how to use it. I prefere to use SVG into the scene but I don't understand how create SVG file.\nSo, my question is:\nCan I use HTML\/CSS inside a Panda3d application?\nThank to all!\nHave a nice day!","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":59,"Q_Id":73078086,"Users Score":0,"Answer":"I think I've found a workaround (temporary).\n\nI create HTML\/CSS file that styling my 2D component that must be injected inside the Panda3D scene\nI create a Python script that convert an HTML part as PNG picture using RGBA for transparency\nI use the generated PNG picture inside my Panda3D scene on the target component.\n\nIt's not pure HTML\/CSS, but it can works.","Q_Score":0,"Tags":"python,html,css,panda3d","A_Id":73078393,"CreationDate":"2022-07-22T09:26:00.000","Title":"Python - Panda3D - Display HTML\/CSS elements into Panda3D scene","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":1,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am creating a web-app w\/ Flask + Flask-WTF that has CRM-like features as a project. My current database (MongoDB) structure is I have:\n\nUsers who can login,\nPeople who are assigned to users, and\nRecords who are assigned to people.\n\nPeople have various fields to be filled out (Name, Phone Number, Email, etc).\nI want Users to be able to create custom fields for people. I am trying to plan out how to implement this from a database design perspective. My initial thoughts are to:\n\nFor each field created, add a new field without a value for each People assigned to the user.\nUse a for-loop to dynamically create the form class by looping through each field-value in my database and excluding non-required ones.\nUse a for-loop to dynamically output the web form by looping through each field-value in my database and excluding non-required ones.\n\nAnother idea I have is:\n\nFor each field created, add the custom field, with a parentRecord equal to the User ID to a new MongoDB collection.\nUse a for-loop to create the form class & web form dynamically, but I wouldn't need to exclude non-required ones as the only fields in the collection would be the custom ones, and wouldn't include any special data points that don't get displayed.\n\nSo my questions are:\n\nWill my ideas above work?\nWhich one is better?\nIs there a better way?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":39,"Q_Id":73086934,"Users Score":0,"Answer":"I decided to create a customfields MongoDB collection that has a parentRecord as the User.\nI faced a few challenges:\n\nI had to dynamically create a form via flask WTF. I ended up using wtforms_dynamic_fields to accomplish this. I then used a for-loop to dynamically generate each form in Jinja. I simply queried the customfields DB where the parentRecord matched the logged in User, and then created custom fields based upon the values saved in customfields.\n\nThe second issue I faced was getting the data from the submitted form and then building a MongoDB-friendly list to insert a new record with when creating new record. This was accomplished by using request.form.items() and iterating through them and using list.update() to add all of my required fields to a list.","Q_Score":0,"Tags":"python,database,mongodb","A_Id":73098355,"CreationDate":"2022-07-22T23:23:00.000","Title":"User-created Record Fields","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"This is a very general question, yet I don't seem to find any answer anywhere.\nI have a Python program that manipulates documents using the PyMuPDF library, and then would like to show them through Flask on a <object> html tag.\nThe data argument just accepts URL, so I was wondering if it was even possible. Is it possible to show a document on memory without needing to save it onto a file first?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":78,"Q_Id":73095986,"Users Score":0,"Answer":"This is obviously independent from PyMuPDF. Mentioning it in the title is therefore misleading.\nAs per your question, I think this is not possible: you must specify a valid URL.\nWhy not storing the PDF in memory in a temp file?","Q_Score":0,"Tags":"python,html,flask,pymupdf","A_Id":73219782,"CreationDate":"2022-07-24T05:25:00.000","Title":"Python: Show a PyMuPDF document with Flask","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am making use of bulk_create on a Django model. How can I get the values of the created object so I can proceed to make use of it, without querying the db again?","AnswerCount":2,"Available Count":1,"Score":-0.0996679946,"is_accepted":false,"ViewCount":50,"Q_Id":73100922,"Users Score":-1,"Answer":"When you send a post request after saving in database in the response you could see the data you need","Q_Score":1,"Tags":"python,django,orm,bulk-create","A_Id":73105596,"CreationDate":"2022-07-24T18:13:00.000","Title":"How do I get created objects as a query set from django bulk_create?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am building a desktop python application that uses the MSAL authorization code workflow by opening up a browser window for authentication. I keep getting back an invalid grant error (code 70000) for some accounts but not others when trying to get an authorization token. It seems to work just fine for the personal Microsoft account through which the application is registered in the Azure portal. It also works fine for my university account (a school Microsoft account), but not for other personal Microsoft accounts.\nThrough the Azure portal, the application is registered with the ability for all Microsoft accounts to work with it. The scopes listed there also match the scopes that I am requesting in the python application.\nThe authorize endpoint does return a valid looking authorization code, but then when I try to use that code to get a valid token, I get the error. More specifically, the message associated with the error says:\nAADSTS70000: The request was denied because one or more scopes requested are unauthorized or expired. The user must first sign in and grant the client application access to the requested scope.\\r\\nTrace ID: 6afddbd2-308e-44df-8640-976dc1c1f601\\r\\nCorrelation ID: bdb626d0-0a3d-4333-ac8f-b5ff510ca046\\r\\nTimestamp: 2022-07-24 18:50:23Z\nWhat might be causing this issue to occur?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":196,"Q_Id":73101247,"Users Score":1,"Answer":"It turns out this was an issue with the scopes I was providing to the authorization endpoint. The scopes profile, openid, and offline_access should be specified to allow some features of Microsoft's Graph API to function properly. In my case, it was the offline_access scope that did the trick. Also note that these scopes cannot be added to the authorization token request, at least through the Python MSAL library. These scopes need to be specified during the process of getting the authorization code only, not the token.","Q_Score":0,"Tags":"python,msal","A_Id":73101480,"CreationDate":"2022-07-24T19:05:00.000","Title":"Having trouble getting MSAL Authorization Code workflow to work","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I am trying to make a simple azure function app that uses tabula-py.  However, this package has a java dependency.  When I try to run it, I get an error about java not being in PATH.\nI've tried to add java to the fileshare but I get the same error.\nWhenever I use jdk, I get the error  PermissionError: [Errno 13] Permission denied: '\/home\/.jre\/jdk-15.0.2+7-jre\/lib\/server\/classes.jsa'\nIs there a way to get java and python running in the same function app?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":151,"Q_Id":73112431,"Users Score":0,"Answer":"Officially only one runtime is supported on Azure function where you specify language of your function app is maintained in the FUNCTIONS_WORKER_RUNTIME as documented here: learn.microsoft.com\/en-us\/azure\/azure-functions\/\u2026 In case if any issue with your function app, then it may not be supported. I think function on Linux using a custom container would be the possible solution where you have full control.","Q_Score":0,"Tags":"python,azure,azure-functions","A_Id":73189023,"CreationDate":"2022-07-25T16:19:00.000","Title":"How to get Python Azure Function App with Java","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I'm working on a project that needs to update a CSV file with user info periodically. The CSV is stored in an S3 bucket so I'm assuming I would use boto3 to do this. However, I'm not exactly sure how to go about this- would I need to download the CSV from S3 and then append to it, or is there a way to do it directly? Any code samples would be appreciated.","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":356,"Q_Id":73117401,"Users Score":1,"Answer":"Ideally this would be something where DynamoDB would work pretty well (as long as you can create a hash key). Your solution would require the following.\n\nDownload the CSV\nAppend new values to the CSV Files\nUpload the CSV.\n\nA big issue here is the possibility (not sure how this is planned) that the CSV file is updated multiple times before being uploaded, which would lead to data loss.\nUsing something like DynamoDB, you could have a table, and just use the put_item api call to add new values as you see fit. Then, whenever you wish, you could write a python script to scan for all the values and then write a CSV file however you wish!","Q_Score":0,"Tags":"python,amazon-web-services,csv,amazon-s3,boto3","A_Id":73129306,"CreationDate":"2022-07-26T03:21:00.000","Title":"Writing to a CSV file in an S3 bucket using boto 3","Data Science and Machine Learning":1,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am using SignNow to create and pre-fill documents. I am facing issues while working with checkboxes. In their API documentation, I couldn't find any way of checking\/unchecking a checkbox but there is a way of adding checkboxes to the document with predefined values. Problem in the later one is that it takes coordinates as parameters and that too in absolute values so responsiveness is compromised. Can someone guide me with a better approach or alternative to tackle this?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":27,"Q_Id":73119765,"Users Score":0,"Answer":"Fixed this problem by working with second approach of sending checkbox fields with coordinates. Problem which I was facing earlier was due to coordinates which I was taking from SignNow web portal which was quite different than from PDF layout. I added couple of check boxes from web portal, downloaded that document as PDF and used it to find actual coordinates and then consumed them in respective APIs.","Q_Score":0,"Tags":"python,signnow","A_Id":73203519,"CreationDate":"2022-07-26T08:05:00.000","Title":"Optimal way of populating a check field or adding it to a document via SignNow?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Is there any way to accurately convert RTF Files to PDF and DOC files on linux server with Python ? I have gone through a number of past questions and here is what I concluded :\n\nThe libreoffice command line converter is not accurate for my PDF and it does not work at all for DOC.\nPython libraries like PyWin32 work on Windows. I would have to make scripts and host it separately on Windows Server to work with Windows\/Microsoft environment. Although I am not sure if it's worth giving it a try ?\nThere are .NET libraries like Aspose.words which will do the work but they are way too costly for a startup.\n\nAny help would be much appreciated.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":345,"Q_Id":73121352,"Users Score":1,"Answer":"As per suggestions and further research by me, I concluded that it is best to implement the 2nd option mentioned in my question itself because of it's balance between a quality solution and being cost optimal. Although, utilities like libreoffice, latex etc. would do the work on linux but none of them are as accurate and real as a MS Word generated report. For my usecase, I implemented a separate Flask API to run on a windows server with MS Office license on it. It contains just a couple of endpoints, taking RTF file as input, and generating PDF and DOCX each.","Q_Score":1,"Tags":"python,linux,pdf,docx,rtf","A_Id":73266088,"CreationDate":"2022-07-26T09:57:00.000","Title":"Converting RTF Files to DOCX and PDF Files on Python-Django and linux server","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"My website is currently using Heroku-18 stack, which is deprecated. I therefore need to redeploy my site to have it up to date (Heroku-22 stack) but I'm getting errors when trying. The log mentions numpy related errors numerous times, so I assume it could be the source of my problem.\nI've already looked online for some solutions but none of them have worked. I notably tried upgrading pip, changing the python version in my runtime.txt file, reinstalling numpy but nothing worked.\nBefore redeploying my website, the python version in runtime.txt was python-3.7.0. It is currently set to python-3.9.13.\nNumpy is installed and the version is 1.18.1.\nHere are some of the errors I'm getting:\n\n! [remote rejected] master -> master (pre-receive hook declined)\nerror: failed to push some refs to 'https:\/\/git.heroku.com\/mywebsite.git'\n\n\nerror: Command \"gcc -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -fPIC -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE=1 -D_LARGEFILE64_SOURCE=1 -Inumpy\/core\/include -Ibuild\/src.linux-x86_64-3.9\/numpy\/core\/include\/numpy -Inumpy\/core\/src\/private -Inumpy\/core\/src -Inumpy\/core -Inumpy\/core\/src\/npymath -Inumpy\/core\/src\/multiarray -Inumpy\/core\/src\/umath -Inumpy\/core\/src\/npysort -I\/app\/.heroku\/python\/include\/python3.9 -Ibuild\/src.linux-x86_64-3.9\/numpy\/core\/src\/private -Ibuild\/src.linux-x86_64-3.9\/numpy\/core\/src\/npymath -Ibuild\/src.linux-x86_64-3.9\/numpy\/core\/src\/private -Ibuild\/src.linux-x86_64-3.9\/numpy\/core\/src\/npymath -Ibuild\/src.linux-x86_64-3.9\/numpy\/core\/src\/private -Ibuild\/src.linux-x86_64-3.9\/numpy\/core\/src\/npymath -c numpy\/random\/mtrand\/mtrand.c -o build\/temp.linux-x86_64-3.9\/numpy\/random\/mtrand\/mtrand.o -MMD -MF build\/temp.linux-x86_64-3.9\/numpy\/random\/mtrand\/mtrand.o.d\" failed with exit status 1\n\n\nERROR: Failed cleaning build dir for numpy\nremote:              Failed to build numpy\n\n\nERROR: Failed building wheel for numpy\n\nHow can I fix these errors?\nAlso, could it be someting else non numpy-related that causes the failure of the deployment?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":133,"Q_Id":73122354,"Users Score":0,"Answer":"I finally managed to solve the issue. Many dependencies were outdated. I had to use python-3.9.14 version, upgrade psycopg2-binary to v2.9.3 and scipy to v1.6.","Q_Score":0,"Tags":"python,numpy,heroku","A_Id":73847517,"CreationDate":"2022-07-26T11:13:00.000","Title":"Can't deploy my website onto Heroku - is Numpy causing the issue?","Data Science and Machine Learning":1,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to add API data to the Folium Popup but there's too much data to fit in one popup. I would like to add a scroll bar but there does not seem to be a way to do that unlike in leaflet javascript.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":53,"Q_Id":73128988,"Users Score":0,"Answer":"SOLVED: use an iframe object and add it to the folium.popup object.\nexample:\nimport branca\niframe = branca.element.IFrame(html='hello world' , width=500,height=400)\npopup = folium.Popup(iframe, max_width=500 )\nthis example code automatically adds a scroll bar. Make sure your iFrame width matches the max width of the folium popup.","Q_Score":0,"Tags":"python,folium","A_Id":73143116,"CreationDate":"2022-07-26T19:48:00.000","Title":"Is there a way to add a scroll bar to Python Folium Popups?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm working on some modules that email all data that should save in the database\nwith the attached file. I don't know how to save them as drafts in Django, Help me to solve this problem. I am new to Django.\nThanks in advance.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":83,"Q_Id":73133365,"Users Score":0,"Answer":"I think you need to just create a normal save and then create a function to prevent everyone except yourself from viewing the post.","Q_Score":2,"Tags":"python,django","A_Id":73133758,"CreationDate":"2022-07-27T06:47:00.000","Title":"How to make a save as draft module in django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have been developing in django for sometime now, and have developed a neat website having functionality such as writing blogs, posting questions, sharing content etc. However there is still one thing that is missing and i.e. creating notification for users.\nWhat I want to do is to inform users in their profiles, whenever somebody comments on their posts, or if they are following a particular post and there is an update on it, then inform the user of that update. I have looked around many applications but I am still very confused about how to do it.\nIn case of using django-notification I seem to have an impression(which can be wrong) that I can use this only to inform the user via email, i.e. I cannot show these notifications in the user profile, just like we have on facebook.\nFirstly I would like to know if I am wrong, and then I really need some proper tutorial or guidance on how to go about doing it. I know how to register a notification and send it on proper signal but there is no documentation on how to show these notices in a template, if this can be done.\nAny guidance\/tutorial\/getting started doc will be deeply appreciated.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":37,"Q_Id":73136236,"Users Score":0,"Answer":"Websockets are simple and very useful in terms of bi-directional communication between clients and servers. If your app's features list grows it will be possible that you will need additional events in your app. WS will help you to scale.","Q_Score":0,"Tags":"python,django","A_Id":73136252,"CreationDate":"2022-07-27T10:23:00.000","Title":"Notification in django?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"so my problem is that sometimes when I try to do makemigrations it gives me No changes detected error while I did some changes to my tables . \nI also tried py manage.py makemigrations ( name of my app ) at first it acts like everything is ok and successful but then when you want to display the tables you edited in models.py it raise error which the new row doesnt exist. anyway i also tried to used python manage.py migrate --fake\n\nPlease give me some suggestion what to do !","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":37,"Q_Id":73137856,"Users Score":0,"Answer":"1- make sure your app in INSTALLED_APP\n2- Make sure that you have not set a variable named app_lable in your meta model class, and if you have set it, you have set it correctly.\n3- This problem may occur when you change the model a lot and make migrations for it\n4- If there is still a problem, you should delete the database and re migrate it","Q_Score":0,"Tags":"python,python-3.x,django,django-models","A_Id":73137971,"CreationDate":"2022-07-27T12:22:00.000","Title":"Sometimes i get No changes detected when i try to do makemigrations","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"\"So you\u2019d make the migrations in developement environment, you get them right, and then you\u2019d like check them into GitHub, perhaps. And then in production, you would pull your migrations out of GitHub and then they\u2019ll migrate.\"\nSo I'm listening to a lecture right now and it says this. It's in regards to models and migrations. I'm new so the only thing I know about GitHub is basically to store your projects etc. What do they mean by \"then if you'd like check them into GitHub\" perhaps.\nAnd then pull your migrations out of GitHub and then they'll migrate. Can someone explain in Fortnite terms please. Thank you. Just a newby trying to understand. Any help is appreciated.","AnswerCount":2,"Available Count":1,"Score":0.0996679946,"is_accepted":false,"ViewCount":53,"Q_Id":73157749,"Users Score":1,"Answer":"In the simplest way it means this:\nYou have code on your computer (called local). You need to copy (check) that code to github.com (called remote).\nTo do it, you need to do 3 operations, called \"stage\", \"commit\", \"push\".\nAt the end of this process, your code will be copied to git.","Q_Score":0,"Tags":"python,django,github","A_Id":73157872,"CreationDate":"2022-07-28T18:42:00.000","Title":"What does it mean to \"check code into GitHub\"?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to import some files from a folder. The code is rather simple:\nfrom myproject.resources import modelselection\nwhat I got is this\nModuleNotFoundError: No module named 'myproject'\noffcourse I have the folders called my project, the subfolder resources and within that last folder I have the modelselection file which a function that I need to use.\nObviously I am quite a beginner with Python and I feel is pretty simple error (I Hope) But tricky to solve it.","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":1277,"Q_Id":73164510,"Users Score":0,"Answer":"Most likely forgot to add an empty __init__.py file in each directory to make them recognised as modules","Q_Score":1,"Tags":"python,import,modulenotfounderror","A_Id":73164572,"CreationDate":"2022-07-29T09:31:00.000","Title":"ModuleNotFoundError: No_module_named","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am making a simple website with as Django as backend.\nIdeally, you should be able to use it without creating an account and then all of your saved items ('notes') in there would be visible to anyone.\nFor now I have created a dummy user on Django, and every time an anonymous user makes an API call to add\/delete\/modify a notes, on Django's side it selects dummy user as a user.\nIt would work okey (I think) but one of Django's API can take a really long time to run (~1-2 minutes). Meaning that if multiple people are trying to make API calls while being anonymous, at some point the server will freeze until the long API finishes run.\nIs there a way such case should be handed on the server side to prevent freezing of server ?","AnswerCount":2,"Available Count":2,"Score":1.2,"is_accepted":true,"ViewCount":47,"Q_Id":73195586,"Users Score":1,"Answer":"As Sorin answered in comments, I would go into Celery way. Basically you can create model that collect the data when the last Celery task was ran - and, for example if it was not running since last 24 hours, and user visits the website, you run task again by async way.\nYou are not even forced to use AJAX calls for that, because sending task to Celery is fast enough to call it on get_context_data() or dispatch() methods. You could overload others, but these are the fastest and safest to override.","Q_Score":0,"Tags":"python,django,django-rest-framework","A_Id":73195989,"CreationDate":"2022-08-01T14:51:00.000","Title":"Django Handling Public API use (anonymouse users making calls to API)","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am making a simple website with as Django as backend.\nIdeally, you should be able to use it without creating an account and then all of your saved items ('notes') in there would be visible to anyone.\nFor now I have created a dummy user on Django, and every time an anonymous user makes an API call to add\/delete\/modify a notes, on Django's side it selects dummy user as a user.\nIt would work okey (I think) but one of Django's API can take a really long time to run (~1-2 minutes). Meaning that if multiple people are trying to make API calls while being anonymous, at some point the server will freeze until the long API finishes run.\nIs there a way such case should be handed on the server side to prevent freezing of server ?","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":47,"Q_Id":73195586,"Users Score":0,"Answer":"You mentioned that one of your API endpoints perform task that take really long time which means you already have a task or process that can be block http request-response cycle. What you can do is to run the time-consuming (or long running) task asynchronously using celery or other task queues.","Q_Score":0,"Tags":"python,django,django-rest-framework","A_Id":73207263,"CreationDate":"2022-08-01T14:51:00.000","Title":"Django Handling Public API use (anonymouse users making calls to API)","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to connect mysql DB in django application. But it is throwing error-\nmodule 'pymysql._auth' has no attribute 'scramble_old_password'.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":158,"Q_Id":73231565,"Users Score":0,"Answer":"Issue: PyMySQL latest version only supports MySQL version >= 5.6\nWhile in my case MySQL version was 5.5\nSolution: So I downgraded the version of PyMySQL and everything works fine now.","Q_Score":0,"Tags":"python,mysql,django,pymysql","A_Id":74433134,"CreationDate":"2022-08-04T07:00:00.000","Title":"Django - module 'pymysql._auth' has no attribute 'scramble_old_password'","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to create a python application while using eel to create a user interface in html.  My operating system is Ubuntu Linux and I'm using Firefox to display the web interface.\nThe problem I'm having is every time I run the python code, Firefox opens a blank page saying \"Unable to connect\" followed by \"Firefox can't establish a connection to the server at localhost:8000\".  However, if I click the \"Try Again\" button once, twice, or three times, my interface is displayed.\nOnce open, I can navigate to different pages but I also noticed that once I navigate to a different page, some of my javascript stops working (specifically a window.close() function).  I don't know if this is related but I thought I would mention it just in case.\nAny advice on the matter would be greatly appreciated.\nThank you.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":85,"Q_Id":73256619,"Users Score":0,"Answer":"I changed my browser from firefox to chromium and now my interface loads on startup the first time.  I know some documentation says it can be used with firefox, and it can, but it seems to be kind of buggy and works better with other browsers.\nHowever, I'm still having trouble with my javascript not running but that will be another question.","Q_Score":0,"Tags":"python,ubuntu,firefox,eel","A_Id":73260420,"CreationDate":"2022-08-06T01:41:00.000","Title":"Python application using eel \"unable to connect\" to localhost on startup","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"How can I ignore the images during the crawl with the scrapy to speed up the crawl?\n\nThis will speed up the creep speed.\nThe download is less.\n\nHow can I make scrapy ignore certain tags and totally ignore html attributes?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":59,"Q_Id":73260368,"Users Score":1,"Answer":"Based on the test I did. I realized that Scrapy doesn't download any images and videos by default.","Q_Score":0,"Tags":"python,scrapy,web-crawler","A_Id":73269472,"CreationDate":"2022-08-06T13:55:00.000","Title":"Ignoring the images at the time of crawl","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Ok I have table call restapi information and I have a json format containing the restapi format I want to pull the data from db using sql and fetch to another table using python but I only need what is in restapi format not all the records and I also want to create a unique Id column to the same table using python can I do that? Should I use Django\nSELECT * FROM Customers WHERE Last_Name='Smith';\nSELECT First_Name, Nickname FROM Friends WHERE Nickname LIKE '%brain%';\nSELECT CustomerName, City FROM Customers; Try it Yourself \u00bb\nI want to extract data from these queries to match the restapi json format which mens only what needed and fetch this values and thier names to table which calls restapi table for each value and it\u2019s name using python\nAfter this I want to create columns contained unique Id for each value and keep adding in case want to add anything to table later","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":38,"Q_Id":73262504,"Users Score":0,"Answer":"Yes, you can. No, you don't need to use Django for that!","Q_Score":0,"Tags":"python,sql,rest,unix,django-rest-framework","A_Id":73262522,"CreationDate":"2022-08-06T18:56:00.000","Title":"Follow some format to get data from db and fetch to another table","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I can find the element needed to be click using selenium. But the problem is the href attribute only contains part of the full link.\nFor example the website is https:\/\/vietstock.vn\nThe element is one of these:\npages = driver.find_elements(\"xpath\", \"\/\/div[@class='owl-stage']\/\/div[@class='single_post_text']\")\nEach element is something like this:\n<a href=\"\/2022\/08\/quy-dau-tu-tiep-tuc-giao-dich-tram-lang-3358-989801.htm\" title=\"...\" class=\"fontbold\">Qu\u1ef9 \u0111\u1ea7u t\u01b0 ti\u1ebfp t\u1ee5c giao d\u1ecbch tr\u1ea7m l\u1eafng<\/a>\nHow can I click the link with full URL as https:\/\/vietstock.vn\/2022\/08\/quy-dau-tu-tiep-tuc-giao-dich-tram-lang-3358-989801.htm","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":67,"Q_Id":73265131,"Users Score":0,"Answer":"Well, after googling around, I found a solution for my own question. But honestly, I don't know the reason:\ndriver.execute_script(\"arguments[0].click();\", element)\nWhich element is the element with href link I just extracted.","Q_Score":0,"Tags":"python,selenium,scrape","A_Id":73265154,"CreationDate":"2022-08-07T05:36:00.000","Title":"How to click a href which contains only a half of the full url using selenium python","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am deploying my project in production server but the port number is coming in the url.\nSo is there any way to remove the port number from url in Django\nhttp:\/\/domain_name:8586\/admin\/login?next=\/","AnswerCount":3,"Available Count":2,"Score":0.0665680765,"is_accepted":false,"ViewCount":229,"Q_Id":73287125,"Users Score":1,"Answer":"If you run your app on port 80 (the default port for http) you won't need to write the port number to access it.\nAny client (browser) will try port 80 if no port number was specified.","Q_Score":0,"Tags":"python,django","A_Id":73287332,"CreationDate":"2022-08-09T05:59:00.000","Title":"How to remove port number from url in production server in django project?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am deploying my project in production server but the port number is coming in the url.\nSo is there any way to remove the port number from url in Django\nhttp:\/\/domain_name:8586\/admin\/login?next=\/","AnswerCount":3,"Available Count":2,"Score":0.1325487884,"is_accepted":false,"ViewCount":229,"Q_Id":73287125,"Users Score":2,"Answer":"You need to change django's default port to 80. Because all browsers(clients) will test port 80 if you don't enter any port","Q_Score":0,"Tags":"python,django","A_Id":73287766,"CreationDate":"2022-08-09T05:59:00.000","Title":"How to remove port number from url in production server in django project?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm trying to build a model monitoring container for an ml project in aws sagemaker. Where I'm use processing jobs for the pre and post processing and model metric part. Can I incorporate model monitoring in that; without creating an endpoint?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":83,"Q_Id":73303849,"Users Score":0,"Answer":"Not at the moment. Model Monitoring is tied to SageMaker RealTime endpoints.","Q_Score":1,"Tags":"python,amazon-web-services,amazon-sagemaker","A_Id":73337454,"CreationDate":"2022-08-10T09:28:00.000","Title":"Is there any possible ways to do model monitoring in aws without an endpoint","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to scale on cloud a one off pipeline I have locally.\n\nThe script takes data from a large (30TB), static S3 bucket made up of PDFs\nI pass these PDFs in a ThreadPool to a Docker container, which gives me an output\nI save the output to a file.\n\nI can only test it locally on a small fraction of this dataset. The whole pipeline would take a couple days to run on a MacbookPro.\nI've been trying to replicate this on GCP - which I am still discovering.\n\nUsing Cloud functions doesn't work well because of its max timeout\nA full Cloud composer architecture seems a bit of an overkill for a very straightforward pipeline which doesn't require Airflow.\nI'd like to avoid coding this in Apache Beam format for Dataflow.\n\nWhat is the best way to run such a python data processing pipeline with a container on GCP ?","AnswerCount":2,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":157,"Q_Id":73319079,"Users Score":1,"Answer":"Thanks to the useful comments in the original post, I explored other alternatives on GCP.\nUsing a VM on Compute Engine worked perfectly. The overhead and setup is much less than I expected ; the setup went smoothly.","Q_Score":0,"Tags":"python,google-cloud-platform,google-cloud-run,dataflow","A_Id":73379502,"CreationDate":"2022-08-11T10:21:00.000","Title":"Running large pipelines on GCP","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I am using Flask to obtain an image using request.files.get and then manipulating it with PIL. Can I render this PIL object (as a variable in the render function) with the template's img tag's src attribute or will it return an error? In this case, what can I do to make it compatible?","AnswerCount":2,"Available Count":1,"Score":-0.0996679946,"is_accepted":false,"ViewCount":27,"Q_Id":73320640,"Users Score":-1,"Answer":"No, the img tag cannot render a PIL object.","Q_Score":0,"Tags":"image,flask,python-imaging-library","A_Id":73320701,"CreationDate":"2022-08-11T12:25:00.000","Title":"Can an img tag render a PIL object?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Most databases allow defining UNIQUE key (unique field) that is not a PRIMARY KEY, but DynamoDB does not seem to support unique key definitions.\nFor example, a model SampleModel defines an id field as a PRIMARY KEY (id = UnicodeAttribute(hash_key=True)). What if another field (let's say name) must also be defined as unique? Given that DynamoDB does not offer unique field specification, and only one PK (hash_key=True) is allowed - how can name be defined as UNIQUE?","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":73,"Q_Id":73336079,"Users Score":0,"Answer":"As you've already seen, there's no direct support for that in DynamoDB.\nIf this name attribute is immutable after you write it, you could do the following:\nYou can create a second DynamoDB table that only has a Partition Key (Partition Key = Primary Key) and stores each name there. When you add an item to the first table, you use a transaction and have a separate insert into the second table that has a condition of the key not already existing. If this transaction fails, you were trying to put an item whose name already existed in the table. If the transaction goes through, you've inserted a new unique name.\nThis will incur extra cost for the second table and transactions and only works in this narrow use case.\nDynamoDB is not built for this pattern, enforce uniqueness in another way.","Q_Score":0,"Tags":"python,amazon-dynamodb,key,unique","A_Id":73337231,"CreationDate":"2022-08-12T14:57:00.000","Title":"DynamoDB - How to specify UNIQUE field that is not a PRIMARY key?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a rails application and I need to run specific python scripts from it to perform API calls. for example, I have a script that creates a user in a certain platform, so I need to pass the user info from the front of my web app normally as JSON, back to the rails backend and to finally execute the python script while passing that JSON as input in it. I have seen similar questions but they don't put some emphasis on the input thing.\nMy question is, is it possible? and would it work for scripts that are going to be executed multiple times (such as listing data on a dashboard that can be refreshed multiple times)","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":65,"Q_Id":73336757,"Users Score":0,"Answer":"JSON is just a string, yes it's possible to execute a script from Ruby passing it a string.","Q_Score":0,"Tags":"python,json,ruby-on-rails,ruby","A_Id":73337905,"CreationDate":"2022-08-12T15:49:00.000","Title":"Run a python script with json input from a rails application","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am measuring battery voltage using a Raspberry Pi GPIO and displaying it on a local web app. Currently, my process is to save the voltage reading and the timestamp as a JSON file on the disk and then read the JSON file using the Javascript fetch API from the local web app (the JSON file is saved on the local web app directory).\nI was wondering if there was a more efficient \/ better way of achieving this.\nI am using python 3 to read the battery voltage and generate the JSON file.\nThe local web app runs on a Node + Express server.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":66,"Q_Id":73345615,"Users Score":0,"Answer":"If you want the data to be persistent, saving it to the disk is the way to go.\nYou might want to consider storing the data in a database, and using the database API to retrieve the data instead of reading a JSON file, though.","Q_Score":0,"Tags":"python,node.js,raspberry-pi3","A_Id":73345642,"CreationDate":"2022-08-13T15:39:00.000","Title":"Efficient way to show sensor data on local web app","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm scraping some 26,000 items in a web site from its API via Scrapy. I use a rotating proxy. When I run the spider it starts working well for a while. But then the rate of 400 responses increases up to a point that almost 95% of are refused.\nWhen I switch from my current Wi-Fi and connect to another Wi-Fi, for example my phone's hotspot, the rate of 200 responses peak again to be ultimately slowed down again. I set the retry times to 50 which extremely prolongs the scraping process which takes up to 16 hours. I think there must be a way to reduce these negative responses.\nSo, the question is, despite the fact that I use a proxy, why would changing the connected Wi-Fi station increases my rates of 200 responses?\nThank you","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":45,"Q_Id":73347559,"Users Score":1,"Answer":"Depending on the proxy software you are using, it may be setting the HTTP headers X-Forwarded-For and X-Real-IP, which can be used to see your IP even if you are using a proxy. Chaning your wifi, however, changes really device's IP, and therefore the IP in X-Forwarded-For and X-Real-IP. I don't know what proxy you are using, but check if there are any options or modules to spoof\/unset the X-Forwarded-For and X-Real-IP headers.","Q_Score":1,"Tags":"python,scrapy","A_Id":73347828,"CreationDate":"2022-08-13T20:49:00.000","Title":"400 responses switch to 200 if I change the wifi, despite the use of proxy","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a webserver hosted on cloud run that loads a tensorflow model from cloud file store on start. To know which model to load, it looks up the latest reference in a psql db.\nOccasionally a retrain script runs using google cloud functions. This stores a new model in cloud file store and a new reference in the psql db.\nCurrently, in order to use this new model I would need to redeploy the cloud run instance so it grabs the new model on start. How can I automate using the newest model instead? Of course something elegant, robust, and scalable is ideal, but if something hacky\/clunky but functional is much easier that would be preferred. This is a throw-away prototype but it needs to be available and usable.\nI have considered a few options but I'm not sure how possible either of them are:\n\nCreate some sort of postgres trigger\/notification that the cloud run server listens to. Guess this would require another thread. This ups complexity and I'm unsure how multiple threads works with Cloud Run.\nSimilar, but use a http pub\/sub. Make an endpoint on the server to re-lookup and get the latest model. Publish on retrainer finish.\ncould deploy a new instance and remove the old one after the retrainer runs. Simple in some regards, but seems riskier and it might be hard to accomplish programmatically.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":95,"Q_Id":73353518,"Users Score":2,"Answer":"Your current pattern should implement cache management (because you cache a model). How can you invalidate the cache?\n\nRestart the instance? Cloud Run doesn't allow you to control the instances. The easiest way is to redeploy a new revision to force the current instance to stop and new ones to start.\nSetting a TTL? It's an option: load a model for XX hours, and then reload it from the source. Problem: you could have glitches (instances with new models and instances with the old one, up to the cache TTL expires for all the instances)\nOffering cache invalidation mechanism? As said before, it's hard because Cloud Run doesn't allow you to communicate with all the instances directly. So, push mechanism is very hard and tricky to implement (not impossible, but I don't recommend you to waste time with that). Pull mechanism is an option: check a \"latest updated date\" somewhere (a record in Firestore, a file in Cloud Storage, an entry in CLoud SQL,...) and compare it with your model updated date. If similar, great. If not, reload the latest model\n\nYou have several solutions, all depend on your wish.\n\nBut you have another solution, my preference. In fact, every time that you have a new model, recreate a new container with the new model already loaded in it (with Cloud Build) and deploy that new container on Cloud Run.\nThat solution solves your cache management issue, and you will have a better cold start latency for all your new instances. (In addition of easier roll back, A\/B testing or canary release capability, version management and control, portability, local\/other env testing,...)","Q_Score":0,"Tags":"python-3.x,tensorflow,google-cloud-platform,fastapi,distributed-system","A_Id":73366096,"CreationDate":"2022-08-14T17:01:00.000","Title":"How to reload tensorflow model in Google Cloud Run server?","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"writing my first playwright code to automate some web routines.\nmy code will login to a website to do a few things, n sometimes I will login from another device.  this will break my session running.  Is there a way to check?  My code runs in a while loop and never ends.\ncurrently using python n storage_state to avoid login again.\ncontext = browser.new_context(storage_state=auth)\nif ( not authenticated ):\nlogin\nsomething like this, but I am not sure which to check.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":276,"Q_Id":73353825,"Users Score":0,"Answer":"OK, I figured out the way to check.  Apparently if I go to the url which I can access when I am logged in, it will stay in that url.  If not logged in, it will redirect me to the login page.  Now, I just check page.url.","Q_Score":0,"Tags":"python,authentication,playwright","A_Id":73508013,"CreationDate":"2022-08-14T17:44:00.000","Title":"playwright python: check whether authenticated session is still valid?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am running Flask 1.1.4 via Python 3.5.3, hosted via an Apache 2 server on Debian Stretch. I am attempting to log various messages from the program, using the python logging module. This works normally. However, if I restart the Apache server using sudo service apache2 restart, the Flask application errors out with PermissionError: [Errno 13] Permission denied: (log file name). Is this an issue anyone else has run into?","AnswerCount":2,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":262,"Q_Id":73367502,"Users Score":0,"Answer":"It turns out that there was a cron process that was editing the ownership of all files in my log folder to root. Once the program was restarted and needed to re-obtain the file reference, it was unable to do so.","Q_Score":0,"Tags":"python,apache,flask,python-logging","A_Id":73392656,"CreationDate":"2022-08-16T00:03:00.000","Title":"Why am I getting PermissionError [Errno 13] when attempting to write to log in Flask hosted by Apache?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I just started working on a Django project. For virtual environment I am trying to use pipenv.\nInside my working directory;\nFirst I created a virtualenv with\n$ pipenv install django\n$ pipenv install autoslug\nthen activated it with\n$ pipenv shell\nAfter that, I started a Django project with\n$ django-admin startproject x\nThen I started an app within the project with\n$ django-admin startapp y\nInside app y, I imported module \"autoslug\".\nI installed autoslug with\n$pipenv install django-autoslug\nWhen I try to make migrations with\n$ python manage.py makemigrations\nIt gives an error\nno module named autoslug\nMy virtualenv is activated and the module is installed inside it.\nAny help would be appreciated. Thanks!","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":103,"Q_Id":73387157,"Users Score":0,"Answer":"You need to be running the python executable of your virtual environment.\nUsing pipenv, the command should be pipenv run python manage.py makemigrations","Q_Score":0,"Tags":"python,django,virtualenv,pipenv","A_Id":73387339,"CreationDate":"2022-08-17T10:48:00.000","Title":"pipenv modules not seen by Django manage.py","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"How to add health check(liveness\/readiness) in Kafka consumer pods in my Django application. New to this infra-structure related things. Please help in implementing a periodic health check for Kafka consumer pods in my application so that it does not allow pods to rotate if their health is not perfect if there is any issue.","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":719,"Q_Id":73417557,"Users Score":1,"Answer":"You could add a simple GET \/health endpoint that returns a 200 status.\nOr if you want something more dynamic to what the Kafka consumer is doing, catch exceptions in your consumer and flip a boolean variable that is inspected as part of your \/health route to return 500 code upon any severe error. Kubernetes then will terminate any pods with non-200 HTTP status probe","Q_Score":1,"Tags":"python,django,apache-kafka,kafka-python,health-check","A_Id":73419399,"CreationDate":"2022-08-19T13:28:00.000","Title":"Add health check to Kafka consumer k8s pods","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I would like to build a REST API using a NoSQL backend with a Python based open source framework to build the API. This API would run in a cloud environment and the goal is for it to be cloud agnostic and have the ability to be deployed anywhere. It must have some abstraction for the backend database technology. I found that Django REST Framework is exactly what I'm looking for, but the Django ORM only supports RDBMS. In an attempt to enable NoSQL support with Django, it seems a few open source packages have been developed but those projects have been abandoned.\nI know it's technically possible to use Amazon DynamoDB or Azure Cosmos DB with Django REST Framework, but as it's not officially supported, it sounds like it would require custom code and deviating from standard configurations to get it to work.\n\nDoes anyone have an API running for Production use using a NoSQL backend with Django REST framework?\nWith Django REST framework, is it possible to abstract the backend database connections to support different NoSQL database types?\nIs a framework like Flask better suited for creating a REST API using this type of backend?\nAre there other REST frameworks available which may provide the functionality required if Django REST framework cannot meet these requirements?","AnswerCount":3,"Available Count":1,"Score":0.0665680765,"is_accepted":false,"ViewCount":304,"Q_Id":73421051,"Users Score":1,"Answer":"I would go with flask + mongodb","Q_Score":1,"Tags":"python,rest,django-rest-framework,architecture,nosql","A_Id":73421061,"CreationDate":"2022-08-19T18:45:00.000","Title":"Building a REST API using a Python based open source framework and NoSQL backend","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am working with python-jira, I want to get the attachments(only excel or csv) data from an issue into a readable format(say pandas df for example) without downloading the files.\nIs there any ways to do it?\nThanks!","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":24,"Q_Id":73435062,"Users Score":0,"Answer":"The simplest way is to just download it. Otherwise you have to access the Jira file system (on-prem Jira only), work out where the file is in the file system, and download it.","Q_Score":0,"Tags":"python,jira,filereader,python-jira","A_Id":73447800,"CreationDate":"2022-08-21T13:49:00.000","Title":"How to read a jira attachement content without downloading it in python?","Data Science and Machine Learning":1,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am running v3.9 notebook and have installed jupyter-themes without issue\/warning. I then ran jt -t oceans16 -f roboto -fs 12 -cellw 100% with no error.\nHowever, the notebook doesn't look like it's updating. I have restarted the kernel and tried it on different browsers to make sure it wasn't a cache issue.\nAny ideas?","AnswerCount":2,"Available Count":2,"Score":0.1973753202,"is_accepted":false,"ViewCount":250,"Q_Id":73451233,"Users Score":2,"Answer":"Make sure that you've installed the module in Python 3.9 by using pip3.9 to install it.","Q_Score":0,"Tags":"pythonanywhere","A_Id":73456804,"CreationDate":"2022-08-22T21:36:00.000","Title":"Jupyter-Themes Not Loading","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am running v3.9 notebook and have installed jupyter-themes without issue\/warning. I then ran jt -t oceans16 -f roboto -fs 12 -cellw 100% with no error.\nHowever, the notebook doesn't look like it's updating. I have restarted the kernel and tried it on different browsers to make sure it wasn't a cache issue.\nAny ideas?","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":250,"Q_Id":73451233,"Users Score":0,"Answer":"I had the same issue. I completely shut down Jupyter Notebooks, cleared my browser cache and reopened Jupyter Notebook and it worked.","Q_Score":0,"Tags":"pythonanywhere","A_Id":73546484,"CreationDate":"2022-08-22T21:36:00.000","Title":"Jupyter-Themes Not Loading","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I currently have an issue when working with my friends on the same Django project.\nThe situation is that every time when any of us made database changes and if other people did not migrate on time, they will get ProgrammingError: Column not exist error. That already happened a couple of times and we are still not able to figure a way to avoid this.\nQuestion:\n\nWhat's the best way to solve this issue when happened?\nWhat's the best process to void this issue?","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":49,"Q_Id":73452183,"Users Score":0,"Answer":"If you are working on a local database then just migrate. This is everyday work in django. At least in my experience.\nFor databases that are shared, this is a different thing. I probably would (a) if no devops are in place, migrate the database directly after I have changed the schema. Make sure that a specific branch (i.e. development) is always in sync with your database server. Or (b) with devops in place, let a branch only merge if the condition is met: the migration that is tied to the model changes in your commit will be successful. And then let the devops handle the migration automatically to keep the database in sync.\n.\n\nDuring active development you can not avoid this issue. You can do your best to inform your colleagues when you push code or merge a feature into development. I.e. by putting a warning in the commit message.\nAnyway, everyone should be aware that the database schema might change when rebasing on current development or pulling. Generally your changelog should at least contain information on what fields were added\/changed\/removed.","Q_Score":1,"Tags":"python,django,django-models,django-migrations","A_Id":73452345,"CreationDate":"2022-08-23T00:24:00.000","Title":"Django collaboration migration issue","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"a fresh question about Django. It maybe silly...I wonder what is running behind the scene when I create a Django project with one line command. Well, I have done with couples of Django projects, the framework is really powerful. So this question is just jumping into my mind. who created the directory structure. Is it a script in some installed Django folder? where can I find it?\nThanks.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":49,"Q_Id":73467626,"Users Score":0,"Answer":"It is in \/lib\/python3.8\/site-packages\/django\/core\/management\/commands.\nAnd by creating child Class from BaseCommand class can create customised Command.","Q_Score":1,"Tags":"python,django","A_Id":73669224,"CreationDate":"2022-08-24T04:59:00.000","Title":"What is running behind when creating Django project with one line command","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I've created superuser and I've also ran the server yet it keeps showing the django \"install worked successfully\" page. Please what can I do?","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":45,"Q_Id":73473914,"Users Score":0,"Answer":"For standard installation the admin site path is \/admin so append that after your URL where you see \"install worked successfully\" page.","Q_Score":0,"Tags":"python,django,django-admin","A_Id":73474035,"CreationDate":"2022-08-24T13:17:00.000","Title":"I'm trying to open the admin website for my project but it isn't coming up, rather it shows the Django install worked successfully page. What can I do","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"A quick question, do we need to create virtual environment for installing and using FastAPI. We use venv for Django right? So why not in FastAPI?","AnswerCount":4,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":485,"Q_Id":73482467,"Users Score":0,"Answer":"Yes, you can create a Virtual Environment in FastAPI and maintain your dependencies.\nVirtual Environments is not Framework dependent. You can use it with any framework.","Q_Score":2,"Tags":"python,django,fastapi","A_Id":73482580,"CreationDate":"2022-08-25T05:49:00.000","Title":"Virtual Environment for FastAPI","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"A quick question, do we need to create virtual environment for installing and using FastAPI. We use venv for Django right? So why not in FastAPI?","AnswerCount":4,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":485,"Q_Id":73482467,"Users Score":0,"Answer":"You should create a virtual environment for each project. You can easily maintain and keep track of your dependencies.\nI highly recommend you to use the Anaconda to create and manage the virtual environments","Q_Score":2,"Tags":"python,django,fastapi","A_Id":73482796,"CreationDate":"2022-08-25T05:49:00.000","Title":"Virtual Environment for FastAPI","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"Is encapsulation get achieved when we declare all variables of the instance or class private? What if I have to keep some variables of class public and some private? Is it still an encapsulation?\nIs it necessary to keep all the variables private for encapsulation? Suppose I have a class \"Employee\", the variables of the class are Employee_name, Employee_salary, Employee_pincode and the methods of the class include \"get Employee_salary\", \"set Employee_salary\", \"get Employee_pincode\", \"set Employee_pincode\".I want to keep the Employee_name  as public and Employee_salary, Employee_pincode as private. Is it still an encapsulation? What if I keep all the variables of the class public? Is it an encapsulation? Please clear my confusion. Thanks","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":30,"Q_Id":73510752,"Users Score":0,"Answer":"In OOP (Object Oriented Programming, of which Encapsulation is one of the Four Pillars), variables are either referred to as fields or properties. Fields are private variables whereas properties are public variables (accessible outside the class).","Q_Score":0,"Tags":"python,private,encapsulation,public","A_Id":73510800,"CreationDate":"2022-08-27T11:51:00.000","Title":"Is encapsulation get achieved when we declare all variables of the instance or class private?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am working on a Django application that uses the SimpleGmail package to fetch mails from a Gmail inbox and I need to persist them. Normally I'd have written a model for the class, but given it's an external class, I can't figure out how to cleanly persist it.\nI have come across solutions such as making it an attribute of a new model that is persisted or multiple inheritance of the desired class, but none of these seem correct to me.\nHow do I properly register an external class as a model for Django's persistence?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":19,"Q_Id":73522001,"Users Score":0,"Answer":"It is too long to comment. So I will try to write an answer.\nOne way is is to create a model class with properties which can be mapped from external class with all properties.\nAnother way would be just import external class in your application and create an instance of this external class. I am sorry, I am not Python guy, so code implementation would not be provided.","Q_Score":0,"Tags":"python,django,oop,persistence","A_Id":73526069,"CreationDate":"2022-08-28T20:23:00.000","Title":"Persisting external classes in Django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"So I am generating reports with Python and Ninja in the ASCIIDoc format.\nBut from within my app I need to convert them into PDF and upload them to another system.\nI have seen that there are multiple HowTo for command line that involve ASCIIDoctor or other tools, but they always are invoked at OS level by starting a program or running a docker container and writing the output to a file.\nIsn't there a way to perform those action within my app and get the PDF as a string that I can use for the upload?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":40,"Q_Id":73591022,"Users Score":0,"Answer":"You can certainly use the available tools to generate a PDF, which you could then read into memory as an opaque string that could be uploaded as needed.\nIf your question is: how do I generate and upload a PDF without installing any other tools?\nThen the answer is that you'd have to implement the PDF generation logic yourself, rather than using tested tooling.","Q_Score":0,"Tags":"python,pdf,asciidoc","A_Id":73628854,"CreationDate":"2022-09-03T09:15:00.000","Title":"ACIIDOC to PDF in Python without need for files","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I'm building an application that can run user-submitted python code. I'm considering the following approaches:\n\nSpinning up a new AWS lambda function for each user's request to run the submitted code in it. Delete the lambda function afterwards. I'm aware of AWS lambda's time limit - so this would be used to run only small functions.\nSpinning up a new EC2 machine to run a user's code. One instance per user. Keep the instance running while the user is still interacting with my application. Kill the instance after the user is done.\nSame as the 2nd approach but also spin up a docker container inside the EC2 instance to add an additional layer of isolation (is this necessary?)\n\nAre there any security vulnerabilities I need to be aware of? Will the user be able to do anything if they gain access to environment variables in their own lambda function\/ec2 machine? Are there any better solutions?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":50,"Q_Id":73596976,"Users Score":0,"Answer":"Any code which you run on AWS Lambda will have the capabilities of the associated function. Be very careful what you supply.\nEven logging and metrics access can be manipulated to incur additional costs.","Q_Score":0,"Tags":"python,amazon-web-services,security,amazon-ec2,aws-lambda","A_Id":73597751,"CreationDate":"2022-09-04T05:25:00.000","Title":"Strategies to run user-submitted code on AWS","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I'm trying to automate a feature that only shows in an android app, Is there a way to get it with selenium?\nThanks a lot","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":35,"Q_Id":73610610,"Users Score":0,"Answer":"So the answer is to use Appium and Appium inspector","Q_Score":0,"Tags":"python,selenium,testing,automation","A_Id":73882090,"CreationDate":"2022-09-05T14:00:00.000","Title":"How can I automate a feature only occurs in android app using Python","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I've deleted both table and 0001_initial.py migration file from a model. I didn`t think I will need this model anymore, but now I do need it.\nThe problem is that python manage.py makemigrations doesn't create a table with the name of deleted table and therefore my migrations are only displayed in migrations files. But they don`t affect database.\nHow can I create or restore that table again or should I delete the whole database and restore everything afterwards?\nThanks in advance!","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":79,"Q_Id":73626771,"Users Score":0,"Answer":"It can sound stupid but did you check bin in your machine?","Q_Score":0,"Tags":"python,django,django-migrations","A_Id":73627152,"CreationDate":"2022-09-06T19:12:00.000","Title":"How to restore deleted table from django migrations?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I managed to hide the content, but I need the label in the list view to be invisible in the list view as well the date the record was created\nin the xml add   attrs='{\"invisible\":[(\"x_studio_selection_field_nZGcq\",\"=\",\"apple\")]}'\nbut it hides only the content and not the field label\nand I need both hidden if the condition is met","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":155,"Q_Id":73641658,"Users Score":0,"Answer":"It is not feasible to hide columns on a list view based on condition. Because there are other possibilities where other record sets meet that condition and want to display value.\nOdoo will allow us to set invisible attributes in a tree view but its only impact on the value means value will be hidden, not column label\/header.","Q_Score":0,"Tags":"python,xml,listview,odoo-14,odoo-15","A_Id":73642006,"CreationDate":"2022-09-07T21:32:00.000","Title":"in my list view I need that when a condition is met a field is hidden: odoo","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I can't figure out how I inherit only one or few selective fields for eg:\nmy.model.main ---> my.model.test\nif model my.model.main has columns [a,b,c,d,e,f,g] , I want only to inherit columns [a,d,g] in the new model my.model.test\nPlease share a sample code for odoo 12\nThank you :)","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":65,"Q_Id":73645548,"Users Score":0,"Answer":"You shouldn't inherit if you can only make use of a few columns of the base model. A cleaner approach in this is case is to separate the columns [a, d, g] into a separate model my.model.mixin and then let my.model.test and my.model.main both inherit from my.model.mixin.\nIf you still want to only inherit a few columns, you'd need to look into the functions init_models, _auto_init, and init. The init method can be overridden to implement your own custom database scheme for your model. This is usually only recommended for adding some indices or defining a view though and will probably lead to more problems if you remove columns in there.","Q_Score":0,"Tags":"python,model,odoo","A_Id":73695102,"CreationDate":"2022-09-08T07:57:00.000","Title":"How to inherit only few fields in odoo 12 model","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"In Django, after I created a model, in cmd I runned: \"python manage.py makemigrations\" and returned that:\nMigrations for 'hello':\nhello\\migrations\\0001_initial.py\n- Create model Article\nhello is the name of app. And after I runned: \"python manage.py migrate\" returned:\nOperations to perform:\nApply all migrations: admin, auth, contenttypes, hello, sessions\nRunning migrations:\nNo migrations to apply.\nAnd when I try to introduce a field in that model appear:\nOperationalError at \/admin\/hello\/article\/add\/\nno such table: hello_article\nI tried to delete all migrations and I created again the model and the  result was the same. How fix this?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":137,"Q_Id":73652756,"Users Score":0,"Answer":"I suggest you try deleting migration files in migration folder and then delete db.sqlite3 since model tables are stored in the database. Now run python manage.py makemigrations and finally run python manage.py migrate","Q_Score":0,"Tags":"python,django,django-models,django-migrations,data-migration","A_Id":73653375,"CreationDate":"2022-09-08T17:05:00.000","Title":"Django - doesn`t make the migrations","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am working on a sentiment analysis project, where the backbone is ofc a model. This was developed using sklearn's off the shelf solutions (MLP) trained with my data. I would like to \"save\" this model and use it again in JavaScript.\nAdam\nI have looked at pickle for python but I'm not sure how i could use this for JS. This is a chrome extension I am developing so I would rather not set up and server. I should add this is course work, so spending money is a no!","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":68,"Q_Id":73663673,"Users Score":0,"Answer":"After some research I pretty much determined its not possible using sklearn  in JS. My solution was to use keras and use tensorflow JS.\nAlternatively, I have learnt the maths behind the network and \"raw\" code it using no libraries. This took a lot longer than just converting everything to keras although.","Q_Score":1,"Tags":"javascript,python,scikit-learn,sentiment-analysis","A_Id":74995572,"CreationDate":"2022-09-09T14:27:00.000","Title":"Sklearn Model to JS","Data Science and Machine Learning":1,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I built an internal app that used django-safedelete. I was working fine for months, until i recently upgraded my distro, and tried to add a field to my model.\nI also upgraded my python modules, everything is up-to-date, and no errors during the upgrade.\nNow I cannot migrate anymore:\n\nif I \"makemigrations\" I get an error message \"django.db.utils.OperationalError: (1054, \"Unknown column 'gestion_ltqmappsetting.deleted_by_cascade' in 'field list'\")\"\n\nif I add a boolean \"deleted_by_cascade\" field in my ltqmappsetting table, then the \"makemigration\" works, but the \"migrate\" fails with \"MySQLdb.OperationalError: (1060, \"Duplicate column name 'deleted_by_cascade'\")\"\n\n\nI tried removing the field after makemigrations, but the migrate fails with the first error message.\nI also tried removing the \"migration\" operations in the 0087...migration.py file, but it does not have any impact.\nIs there anyway to update the migration file between the makemigrations and the migrate commands ?\nThanks a lot for any help on this.\njm","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":54,"Q_Id":73666971,"Users Score":0,"Answer":"It's a wonder how I can actually look for answers for hours, then post on this site, and a few minutes later, I actually find the answer ...\nAnyway.\nIt looked like I was mistaken on the meaning of the second error message. It failed because a previous migration already create the deleted_by_cascade field in another table, not in the appsetting one.\nSo the steps to solve my issue where:\n\nmigrate migrate 0086 to remove the latest migrations\nmake sure the DB only had the deleted_by_cascade column in the appsetting table\nmakemigrations - this creates the 0087 migration to add deleted_by_cascade column in all tables\nedit the 0087 migration to not create the new column in the appsetting table\nrun makemigrations once again -  - this creates the 0088 migration to add deleted_by_cascade column in the appsetting table\nmigrate 0087\nmigrate --fake 0088\n\nEt voila ...\nThere was probably something wrong in the safe_delete update.\nHope this can help others.\njm","Q_Score":0,"Tags":"python,mysql,django,django-models,django-migrations","A_Id":73667123,"CreationDate":"2022-09-09T20:00:00.000","Title":"django-safedelete 1.3.0 - Cannot migrate","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"i run flask app FLASK_ENV=development flask run\ni haven't touched locally installed python for 2-3 months\nunexpected behaviour:\n\nserver starts slowly than previously\nusually with FLASK_ENV=development server reloads when files change(after file changed reloading will perform in 40-50 seconds)\n\ni did:\n\nre-install pythons(3.8,3.9)\nre-install wsl(debian, ubuntu)\n\np.s. usually wsl command installs high distributive version, but today 09.12.2022 wsl command installs debian 9???","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":127,"Q_Id":73691871,"Users Score":0,"Answer":"problem have solved through switching to wsl version 1\np.s. reason to post this question - poke the problem for another developers","Q_Score":0,"Tags":"python-3.x,windows-subsystem-for-linux","A_Id":73691951,"CreationDate":"2022-09-12T15:45:00.000","Title":"wsl python works slow","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I developped an application using youtube api and python. This application launchs live streams on my channel.\nTo do so I went to google console , and created \"consent screen\", \"credentials\"  downloaded \"json auth file\"....etc then developped my code in python , run it, everything works fine in my machine and on my channel\nNow I want that this application to be used by some users (friends), so they can launch lives in their channels\nShall they create also consent screen ... because this too heavy , as consent screen asks for many details about developper profile. But the final users are not developpers\nSo please any exlanation on how to be able to use a youtube api app elsewhere","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":17,"Q_Id":73717710,"Users Score":1,"Answer":"When you give your script to others they will need to create their own project up on google cloud console. You can not share your client id and client secrete with others. Unless you can compile your python into an executable.  I believe that is possible.\nIf they don't want to create their own projects then you should host your script some place like a web page where they can then click on it authorize the app and create their live streams.  this will mean to switching to web application credentials, i am assuming you created a desktop app \/ native app currently.\nIf you go with option one the users are going to have to verify their apps themselves.  If you go with option two your going to have to verify the application run by others.","Q_Score":1,"Tags":"python-3.x,deployment,package,youtube-api,youtube-data-api","A_Id":73720202,"CreationDate":"2022-09-14T13:28:00.000","Title":"How to package and deploy a Youtbe API app to be used by other users","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have two byte arrays - one from mic and one from soundcard of same duration (15 seconds). They have different formats (sample rate of mic = 44100, n_frames = 1363712; sample rate of stereo = 48000, n_frames=1484160). I had assumed resampling would help (16k desired) but they are still of differing lengths and can't simply be combined (added - am assuming adding tensors will result in mixed audio).\nI can't see a built in method for mixing audio, but perhaps I'm overlooking something.\nI see that sox_effects is included, but none of the effects listed seem relevant - although I know sox can mix audio.\nAm I barking up the wrong tree with torchaudio?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":17,"Q_Id":73718299,"Users Score":1,"Answer":"Mixing audio is simply taking sum or average of source waveforms, so TorchAudio does not provide a specialized method, but users are expected to do the operation with pure PyTorch Tensor operation.\nNow the problem you need to think is how to handle the different lengths, i.e. how to make them the same length.\nYou can cut the long one to align it to the short one, or zero-pad the short one to align it to the long one.","Q_Score":0,"Tags":"python,sox,torchaudio","A_Id":74141349,"CreationDate":"2022-09-14T14:08:00.000","Title":"Is it possible to mix two mono audio tensors of different length (number of frames) in torchaudio?","Data Science and Machine Learning":1,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm getting the following error while running manage.py migrate in my Django rest-api. I'm unable to pinpoint where to look. Help appreciated.\n\nattributeerror: 'str' object has no attribute '_meta'\n\nThe traceback shows the following :\n''\nTraceback (most recent call last):\nFile \"\/home\/myproject\/myproject-api\/manage.py\", line 25, in \nexecute_from_command_line(sys.argv)\nFile \"\/home\/myEnv\/lib\/python3.9\/site-packages\/django\/core\/management\/init.py\", line 419, in execute_from_command_line\nutility.execute()\nFile \"\/home\/myEnv\/lib\/python3.9\/site-packages\/django\/core\/management\/init.py\", line 395, in execute\ndjango.setup()\nFile \"\/home\/myEnv\/lib\/python3.9\/site-packages\/django\/init.py\", line 24, in setup\napps.populate(settings.INSTALLED_APPS)\nFile \"\/home\/myEnv\/lib\/python3.9\/site-packages\/django\/apps\/registry.py\", line 122, in populate\napp_config.ready()\nFile \"\/home\/myEnv\/lib\/python3.9\/site-packages\/cacheops\/init.py\", line 18, in ready\ninstall_cacheops()\nFile \"\/home\/myEnv\/lib\/python3.9\/site-packages\/funcy\/flow.py\", line 231, in wrapper\nreturn func(*args, **kwargs)\nFile \"\/home\/myEnv\/lib\/python3.9\/site-packages\/cacheops\/query.py\", line 578, in install_cacheops\nopts = rel.through._meta\nAttributeError: 'str' object has no attribute '_meta'\n''","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":393,"Q_Id":73735428,"Users Score":0,"Answer":"The issue was this. I had to install\n\npip install django-cacheops==4.0.0\n\nFor the time being error is gone.\nHowever, the original error stile persists if I install version django-cacheops==6.1.0","Q_Score":1,"Tags":"python-3.x,django,django-rest-framework,django-serializer","A_Id":73747428,"CreationDate":"2022-09-15T17:45:00.000","Title":"Django rest-api - attributeerror: 'str' object has no attribute '_meta'","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I know that there are similar questions on the  stackoverflow, however, I can\u2019t just take and erase the database and create it again important data is stored there, I think it\u2019s about the migrations themselves, if you have a solution to this problem, I will be very glad to hear it:\n python manage.py migrate\nraise InconsistentMigrationHistory( django.db.migrations.exceptions.InconsistentMigrationHistory: Migration  members.0001_initial is applied before its dependency company_directory.0002_initial  on database 'default'.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":145,"Q_Id":73736376,"Users Score":0,"Answer":"It seems to be an error in your migrations files. You can enter it in the migrations folder so delete everything except init.py then you can make the \"python manage.py makemigrations\" again and your error should be solved. This is dangerous because if you make some mistake it can make your application stop working, but if you have errors in your migrations files this is the only way I know.\nTo be sure you do not delete anything wrong you can create an backup of your migrations folder or all your project before test it.\nThis will not affect your database, just your migrations files.","Q_Score":0,"Tags":"python,django,model,migration","A_Id":73736697,"CreationDate":"2022-09-15T19:21:00.000","Title":"I can't just delete the db django.db.migrations.exceptions.InconsistentMigrationHistory","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I've been scraping Instagram using Instaloader for about 6 months. It worked really great, few banned accounts as excpected. But since last month too many accounts have gotten banned from Instagram.\nI almost tried everything, slowing down the scraper using random sleep times, changing accounts after a few successful scrapes, using proxy servers and private proxies etc. But nothing worked.\nIs there any solution for this problem?\nOr is there any other libraries that can handle scraping likes for specific posts?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":53,"Q_Id":73736499,"Users Score":0,"Answer":"I would suggest using these accounts for a week or two like a regular user (this is when Instagram tracks the actions or a new user more) then maybe try increasing your random wait times (about a photo a minute should be safe) and do not download content from the same user multiple times or you will be flagged","Q_Score":0,"Tags":"python-3.x,web-scraping,scrape","A_Id":73736607,"CreationDate":"2022-09-15T19:35:00.000","Title":"Too many accounts have gotten banned from Instagram while scraping","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to use AWS services to implement a real-time email-sending feature for one of my projects. It is like someone uses my app to schedule a reminder from my project and then the email will be sent to them nearby or at the actual time that he scheduled.\nI know the AWS services such as AWS CloudWatch rules (CRONs) and DynamoDB stream (TTL based). But that is not perfect for such a feature. Can anyone please suggest a better way to implement such a feature?\nAny type of guidance is acceptable.\n-- Thanks in advance.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":29,"Q_Id":73769670,"Users Score":2,"Answer":"Imagine your service at huge scale. At such scale, there are likely to be multiple messages going off every minute. Therefore, you could create:\n\nA database that stores the reminder times (this could be DynamoDB or an Amazon RDS database)\nAn AWS Lambda function that is configured to trigger every minute\n\nWhen the Lambda function is triggered, it should check the database to retrieve all reminders that should be sent for this particular minute. It can then use Amazon Simple Email Service (SES) to send emails.\nIf the number of emails to be sent is really big, then rather than having the Lambda function call SES in series, it could put a message into an Amazon SQS queue for each email to be sent. The SQS queue could then trigger another Lambda function that sends the email via SES. This allows the emails to be sent in parallel.","Q_Score":0,"Tags":"python-3.x,amazon-web-services","A_Id":73772956,"CreationDate":"2022-09-19T07:11:00.000","Title":"Real time email feature using AWS services","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I have a question that I would like to solve:\nI have 4 python scripts as follows:\n\nmain.py\n\nscript1.py\nscript2.py\nscript3.py\n\n\n\nScripts 1, 2 and 3 are run invoked in the main.py.\nWhat I need is to be able to easily schedule this main.py to run once a week.\nWhat AWS services would be best for this? From the architecture side I don't know much.\nThank you!","AnswerCount":2,"Available Count":2,"Score":0.1973753202,"is_accepted":false,"ViewCount":238,"Q_Id":73773750,"Users Score":2,"Answer":"You can deploy the script in lambda if your execution time is under 15 minutes plus cloudwatch events for scheduling\nFor execution scripts > 15 minutes, I would suggest using AWS Batch to have the script on schedule on any of the supported compute environment like ECS or EC2","Q_Score":0,"Tags":"python,amazon-web-services,aws-lambda,schedule,aws-event-bridge","A_Id":73774098,"CreationDate":"2022-09-19T13:00:00.000","Title":"What is the best way to schedule a python script with AWS?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I have a question that I would like to solve:\nI have 4 python scripts as follows:\n\nmain.py\n\nscript1.py\nscript2.py\nscript3.py\n\n\n\nScripts 1, 2 and 3 are run invoked in the main.py.\nWhat I need is to be able to easily schedule this main.py to run once a week.\nWhat AWS services would be best for this? From the architecture side I don't know much.\nThank you!","AnswerCount":2,"Available Count":2,"Score":0.1973753202,"is_accepted":false,"ViewCount":238,"Q_Id":73773750,"Users Score":2,"Answer":"For something running once per week, you clearly do not want to have any infrastructure running continuously. This leaves AWS Fargate (good for containerization) or AWS Lambda (good for scripts that run in less than 15 minutes).\nBased on the limited information you have provided, AWS Lambda would be a good option since it is simple to schedule.\nYou would need to change the scripts slightly to fit in the AWS Lambda environment. The Lambda 'function' is triggered via a call to a particular function you nominate. Since you have multiple scripts, you would need to determine whether to combine them all into the one Lambda function, or whether to have them each as a separate function and have the 'main' Lambda function call the other Lambda functions.\nAWS Lambda also supports parallel runs by deploying multiple Lambda functions. This could be useful if you have a lot of work to perform, or you can ignore it and just run your code as a 'single thread'.","Q_Score":0,"Tags":"python,amazon-web-services,aws-lambda,schedule,aws-event-bridge","A_Id":73792962,"CreationDate":"2022-09-19T13:00:00.000","Title":"What is the best way to schedule a python script with AWS?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"What would be the best approach to handle the following case with Django?\nDjango needs access to a database (in MariaDB) in which datetime values are stored in UTC timezone, except for one table that has all values for all of its datetime columns stored in local timezone (obviously different that UTC). This particular table is being populated by a different system, not Django, and for some reasons we cannot have the option to convert the timestamps in that table to UTC or change that system to start storing the values in UTC. The queries involving that table are read-only, but may join data from other tables. The table itself does not have a foreign key but there are other tables with a foreign key to that table. The table is very big (millions of rows) and one of its datetime columns is part of more than one indexes that help for making optimized queries.\nI am asking your opinion for an approach to the above case that would be as seamless as it can be, preferably without doing conversions here and there in various parts of the codebase while accessing and filtering on the datetime fields of this \"problematic\" table \/ model. I think an approach at the model layer, which will let Django ORM work as if the values for that table were stored in UTC timezone, would be preferable. Perhaps a solution based on a custom model field that does the conversions from and back to the database \"transparently\". Am I thinking right? Or perhaps there is a better approach?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":28,"Q_Id":73817657,"Users Score":0,"Answer":"It is what it is. If you have different timezones then you need to convert different timezones to the one you prefer. Plus, there is no such thing as for reasons we cannot have the option to convert the timestamps in that table to UTC - well, too bad for you, should have thought about that, now you need to deal with it (if that is the case, which it is not - this is \"programming\", after all. Of course everything can be changed)","Q_Score":0,"Tags":"python,django,datetime,timezone","A_Id":73817922,"CreationDate":"2022-09-22T16:01:00.000","Title":"How to best handle the access with Django to a database that has some DateTime fields stored in local timezone while others are stored in UTC?","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a Ubuntu 18 VM in AWS running Nginx and Gunicorn3 hosting a Python Flask small web app.\nthe Flask web app connects to Okta for authentication. As in...user logins into web app, and gets redirected to Okta for verification. Upon verification, user gets directed back to the web app.\nAll this works fine on my local network with both Okta and Keycloak using http and the same identical web app. However, when I update the redirects in Okta to use https, Okta ignores the https and uses http. I get a 400 error but when I manually insert the \"s\" into the URL, it works fine.\nHow do I force Okta to uses https with my redirects?\nThanks","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":32,"Q_Id":73820161,"Users Score":0,"Answer":"After scouring the digital landscape...I found a solution.\nIn Flask app, use the following:\napp.config[\"OVERWRITE_REDIRECT_URI\"] = \"https:\/\/flask-app-hostname\/oidc\/callback\"\nProblem solved!","Q_Score":0,"Tags":"python,nginx,flask,openid-connect,okta","A_Id":73820558,"CreationDate":"2022-09-22T20:09:00.000","Title":"Okta generates 400 error when redirects are updated to https (443) on AWS VM","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"In my webapp, I'd like to allow users who want to deploy an instance to write their own templates. Specifically, I would like to include a template for a data protection declaration using the include tag and have this point to a location which users can define in their settings.\nHowever, this would not be translatable, as all translated strings have to be in django.po and that file is in version control.\nIs there a way to extend django.po, e.g. use an include statement to point it to a second, user generated translations file, similar to how I can include templates within other templates?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":33,"Q_Id":73831490,"Users Score":0,"Answer":"Not entirely sure if this is possible, but you best bet is probably to use some other mechanism for translation. For example, you could create a template-tag user_translation and make it fetch the translation from the database or settings.","Q_Score":0,"Tags":"python,django,django-templates,translation","A_Id":74464419,"CreationDate":"2022-09-23T18:09:00.000","Title":"Are user provided translations for user provided templates possible with the django template engine?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have intermediate Python skills and want to learn web development. Should I start with Django or Flask? When I search for answers I only see benefits or downsides of them, but not anyone saying which one is better. And since I don't have any experience, I cant decide. I know it always comes down to what you want to create etc. But what would you say, is better overall? Is it possible to answer that question?","AnswerCount":3,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":355,"Q_Id":73838605,"Users Score":0,"Answer":"If you want to make a website quick and easy flask is wonderful due to it's low entry level, however if you want to learn a framework with more power but a bit confusing django is the clear winner. I personally am using Flask but I think both are good to learn and it might not be as important as you think!","Q_Score":0,"Tags":"python,django,flask,web","A_Id":73838659,"CreationDate":"2022-09-24T15:53:00.000","Title":"Python Django or Flask for web development?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I was wondering if it possible to create two Django website\nBoth work independently.\nIf the User signup on site A\nThe new contact information will be sent to site B using API automatically.\nIf the user adds a post on site A, site B gets its copy.\nSite B is the parent of multiple sites like site A owned by users.\nThe users create something on their local site, and B gets a copy of the user push.\nI'm looking to create a federated network of multiple social websites and a Base website for the storing of Public posts only.","AnswerCount":2,"Available Count":2,"Score":0.0996679946,"is_accepted":false,"ViewCount":57,"Q_Id":73840006,"Users Score":1,"Answer":"whenever a user create their profile\/sign up, be sure that the client send a request to 2 origins (in your case 2 backends), this way, the user profile is stored in both backends\nOR\nfigure out how to connect the same database (or part of it) to the two projects.\nI suggest the first method, since it is easier to do and maintain.\nEdit:\nfor the 2nd suggestion, the only way you can share a table (users table) between 2 db, is by copying the table to the other db, which seems ineffective.","Q_Score":0,"Tags":"python,django","A_Id":73840484,"CreationDate":"2022-09-24T19:22:00.000","Title":"Sharing user profiles in two Django projects","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I was wondering if it possible to create two Django website\nBoth work independently.\nIf the User signup on site A\nThe new contact information will be sent to site B using API automatically.\nIf the user adds a post on site A, site B gets its copy.\nSite B is the parent of multiple sites like site A owned by users.\nThe users create something on their local site, and B gets a copy of the user push.\nI'm looking to create a federated network of multiple social websites and a Base website for the storing of Public posts only.","AnswerCount":2,"Available Count":2,"Score":0.0996679946,"is_accepted":false,"ViewCount":57,"Q_Id":73840006,"Users Score":1,"Answer":"The best solution for this is to make Restful backend that will be shared among many websites.","Q_Score":0,"Tags":"python,django","A_Id":73840253,"CreationDate":"2022-09-24T19:22:00.000","Title":"Sharing user profiles in two Django projects","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to iterate through the last 5 pages of a PDF in PyMuPdf, and ask the user if he wants to iterate through more 5 pages.\nI came across reversed method of PyMuPdf, but that doesn't take the parameter of limiting it to only 5 pages.\nExample, total 20 pages in a PDF. First process Page no. 16 to 20 in reverse order i.e. 20-19-18-17-16 and if the user enters Yes to process another 5 pages then process 15-14-13-12-11 and so on.\ndoc.pages(start, stop, step) this method can be used for iterating through particular number of pages, but then I have to manually calculate the start and end, and do which is not a good practice.","AnswerCount":2,"Available Count":2,"Score":0.0996679946,"is_accepted":false,"ViewCount":165,"Q_Id":73852069,"Users Score":1,"Answer":"Use doc.page_count\n\nCreate a list of the page numbers, in your case it is the last 5 pages.\nUse the syntax last_pages=list(range(doc.page_count-5,doc.page_count))\nIterate through the list representing the page numbers.","Q_Score":0,"Tags":"python,pymupdf","A_Id":73876003,"CreationDate":"2022-09-26T09:24:00.000","Title":"Python - Go through only 5 pages at one time in PyMuPdf Fitz","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to iterate through the last 5 pages of a PDF in PyMuPdf, and ask the user if he wants to iterate through more 5 pages.\nI came across reversed method of PyMuPdf, but that doesn't take the parameter of limiting it to only 5 pages.\nExample, total 20 pages in a PDF. First process Page no. 16 to 20 in reverse order i.e. 20-19-18-17-16 and if the user enters Yes to process another 5 pages then process 15-14-13-12-11 and so on.\ndoc.pages(start, stop, step) this method can be used for iterating through particular number of pages, but then I have to manually calculate the start and end, and do which is not a good practice.","AnswerCount":2,"Available Count":2,"Score":1.2,"is_accepted":true,"ViewCount":165,"Q_Id":73852069,"Users Score":2,"Answer":"Look at the Document.pages() iterator.\nSimply iterate over Document.pages(-5) which will yield the last 5 pages.","Q_Score":0,"Tags":"python,pymupdf","A_Id":73879286,"CreationDate":"2022-09-26T09:24:00.000","Title":"Python - Go through only 5 pages at one time in PyMuPdf Fitz","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a question about the very concept of changing a user's email. It's just a concept without code.\nWhen the user wants to change email, he goes to settings and click button \"Send a link to change email\". After that I am sending a message to user's email which contains link with a token to change email. Link looks like this: {{domain}}\/new-email\/{{uid}}\/{{token}}. On this page user can put the new email and now here is my question:\nI need to send another message to the new mail with a link to check if that new mail is real.\nMy user model contains just current email field. I need to remember somewhere the new mail so after user click the activation link inside message, the email field will be replaced by the new mail. Where should I store the new mail? Should I create a new field inside user model (replace email by current_email and add new_email) and after user click the activation link the current_email will be replaced by the new_email value and new_email will be set to null again? Or maybe should I store the new mail inside token (which will be inside the activation link URL) without creating the new field inside user model?\nWhich option will be safer and cleaner?\nI am using Django and React.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":60,"Q_Id":73859889,"Users Score":0,"Answer":"I do not recommend creating a new field.\nYou can use the token option or store the new email in the cache. Use the id value of the user (or any unique identifier value) whose email address you want to change and the new email address as key, value pair.","Q_Score":1,"Tags":"python,reactjs,django,django-models,django-rest-framework","A_Id":73874111,"CreationDate":"2022-09-26T20:59:00.000","Title":"Concept of changing a user's email","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"i have some function to get shop order data from shopee.co.id open api to be implemented on GF (google function) and trigger by cloud scheduler. the problem is.the target shop order data took me 1,5 hours to get 10K orders data. for my understand, CF gen 2nd have max 1 hours timeout when triggered. my question is:\nis it possible  to continues\/retrigger the rest of code left in\nfunction again after timeout occured either in cloud function or\ncloud scheduler like snapshot?\nis google function is good solution for long task like my case. if not should i use app engine? (notes: my scripts is not web services that need flask is just one hit script to be run by cron scheduler to push data straight to bigquery after get the data from api)\nthank you","AnswerCount":3,"Available Count":3,"Score":0.0,"is_accepted":false,"ViewCount":113,"Q_Id":73912465,"Users Score":0,"Answer":"is it possible to continues\/retrigger the rest of code left in function again after timeout occured either in cloud function or cloud scheduler like snapshot?\n\nNo, it's not that simple. You will end up doing a lot of coding to correctly implement retries and snapshotting the progress of your work so you don't duplicate or miss anything.  Google Cloud won't do any of that work for you.\n\nis google function is good solution for long task like my case?\n\nNo, Cloud Functions is not meant for long-running batch work.\nYou could consider App Engine or Compute Engine instead.","Q_Score":0,"Tags":"python,google-cloud-platform,cron,google-cloud-functions","A_Id":73913292,"CreationDate":"2022-09-30T18:06:00.000","Title":"Google Cloud Function : how to continues timeout function","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"i have some function to get shop order data from shopee.co.id open api to be implemented on GF (google function) and trigger by cloud scheduler. the problem is.the target shop order data took me 1,5 hours to get 10K orders data. for my understand, CF gen 2nd have max 1 hours timeout when triggered. my question is:\nis it possible  to continues\/retrigger the rest of code left in\nfunction again after timeout occured either in cloud function or\ncloud scheduler like snapshot?\nis google function is good solution for long task like my case. if not should i use app engine? (notes: my scripts is not web services that need flask is just one hit script to be run by cron scheduler to push data straight to bigquery after get the data from api)\nthank you","AnswerCount":3,"Available Count":3,"Score":0.0,"is_accepted":false,"ViewCount":113,"Q_Id":73912465,"Users Score":0,"Answer":"Cloud function V2 is not adapted for long running jobs and I think it will complicated to implement your own logic for snapshotting or retry.\nYou can think about other solutions :\n\nSolution 1 : Apache Beam\/Dataflow job\n\nDataflow is adapted for long running jobs and it's serverless, it's based on Apache Beam open source model.\nBeam is proposed with Python, Java or GO sdk and it's easy to read an api and write the result to Bigquery via IO classes given natively by the sdk\n\nSolution 2 : job on Compute Engine VM or App Engine\n\nYou can deploy your current script to Compute Engine VM or App Engine (Google Python clients), there is no limit in one hour in this case.","Q_Score":0,"Tags":"python,google-cloud-platform,cron,google-cloud-functions","A_Id":73914205,"CreationDate":"2022-09-30T18:06:00.000","Title":"Google Cloud Function : how to continues timeout function","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"i have some function to get shop order data from shopee.co.id open api to be implemented on GF (google function) and trigger by cloud scheduler. the problem is.the target shop order data took me 1,5 hours to get 10K orders data. for my understand, CF gen 2nd have max 1 hours timeout when triggered. my question is:\nis it possible  to continues\/retrigger the rest of code left in\nfunction again after timeout occured either in cloud function or\ncloud scheduler like snapshot?\nis google function is good solution for long task like my case. if not should i use app engine? (notes: my scripts is not web services that need flask is just one hit script to be run by cron scheduler to push data straight to bigquery after get the data from api)\nthank you","AnswerCount":3,"Available Count":3,"Score":0.0,"is_accepted":false,"ViewCount":113,"Q_Id":73912465,"Users Score":0,"Answer":"For me, the best design here is to scale out. I mean, instead of processing 10k order on only one instance, you can do that on multiple instance. For instance, process 1k orders over 10 instances.\nYou can also try to leverage multi CPU processing, especially with Cloud Run.\nIf you can share more about the detail of the connection, and your processing flow, we can advise more clearly","Q_Score":0,"Tags":"python,google-cloud-platform,cron,google-cloud-functions","A_Id":73917973,"CreationDate":"2022-09-30T18:06:00.000","Title":"Google Cloud Function : how to continues timeout function","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I'm trying to make a scrapy scraper work using cloud run. The main idea is that every 20 minutes a cloud scheduler cron should trigger the web scraper and get data from different sites. All sites have the same structure, so I would like to use same code and parallelize the execution of the scraping job, doing something like scrapy crawl scraper -a site=www.site1.com and scrapy crawl scraper -a site=www.site2.com.\nI have already deployed a version of the scraper, but it only can do scrapy crawl scraper. How can I do that at execution the command's site change?\nAlso, should I be using cloud run job or service?","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":501,"Q_Id":73922260,"Users Score":0,"Answer":"There is no direct way.\nCloud Scheduler can call your application with parameters, but you would need to create a new job for each set of parameters.\nCloud run supports environment variables, but you would need to redeploy your app to modify them.\nYou can store parameters for your application in Secret Manager or Cloud Storage. Your app would then read the current configuration from one of those locations.","Q_Score":1,"Tags":"python,scrapy,google-cloud-run","A_Id":73922630,"CreationDate":"2022-10-01T22:52:00.000","Title":"How can I trigger same Cloud Run job\/service using different arguments?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"There is exactly one module in the \"pinax\" contributed library \u2013\u00a0which is essential to my project \u2013 that I wish to override.  And that one module is site-packages\/pinax\/templatetags\/templatetags\/shorttimesince_tag.py, which references the django.utils.tzinfo module which no longer exists in current Django.  (Having been replaced by django.utils.timezone.\nI would like to \"override\" this particular module by arranging things so that Python will encounter it first.  Well, I tried unsuccessfully to put this into the wsgi file of the application:\n\nsys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), \"overrides\")))\n\nI then created an overrides\/pinax\/templatetags\/templatetags directory tree with an __init__.py file in each.\nI don't think that Django gets this far, before it dies with an import error.  (Because a \"print()\" statement didn't produce any output.)\nBut, I feel that something along these lines ought to work.  Because I really don't want to have to absorb this entire contributed library into my application, literally just to change one line of source.\nAny ideas?  Am I just barking up the wrong tree? *(P.S.: I am also using another library, the \"machina\" forum, which does include a very nice built-in \"override\" mechanism. But I don't know exactly how it works, and I haven't yet \"dumpster-dived\" to find out ...)","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":131,"Q_Id":73929927,"Users Score":1,"Answer":"Tested it with local files, and it seems, when you override a package by creating a package in override with same name and __init__.py inside, it overrides the whole original package, not just the files you've created. So you have to copy all the files from that package.\nAnd if you don't specify __init__.py, python doesn't recognize your package and imports the original.\nI think, the best way here is to fork the original package's repo, change it, and use the fork in your project. Also consider creating a PR to the original repo if you think your changes might be useful to others.","Q_Score":0,"Tags":"python,django,wsgi","A_Id":73931899,"CreationDate":"2022-10-02T23:04:00.000","Title":"Django: I want to override exactly one module in a contributed library to patch one tiny thing","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"In Drake\/pydrake, all of the examples I have seen create an instance of Simulator and then advance the simulation by a set duration, e.g. sim.AdvanceTo(10) will step the simulation until it has simulated 10 seconds of activity.\nHow can I instead run a simulation indefinitely, where I don't have a specific duration to advance to, just have the simulation running in its own node and step at a fixed interval forever?\nMy intention is to just have the simulator running, and then send requests to update commands that will be sent to the robot. Is there a straightforward way to achieve this that won't break the simulation? I figured there would be a public Step function on Simulator, but have only encountered AdvanceTo. My first thought was to try to take the context from a call to AdvanceTo over a short interval, e.g. AdvanceTo(0.01) and then overwrite the context for the next call so that it's updating from the new context instead of the original, but I'm not sure it will work. Maybe there's a more official way to achieve this scheme?","AnswerCount":2,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":60,"Q_Id":73939648,"Users Score":2,"Answer":"You can do the scheme you proposed. But AdvanceTo() takes a time rather than an interval. To avoid annoying accumulated roundoff you should use an integer step counter and then do AdvanceTo(step_number * dt) where dt is the length of step you would like to take between interruptions.\nAn alternative would be to use AdvanceTo(infinity) as Xuchen suggested but define some regular update Event that can modify the state when needed.","Q_Score":2,"Tags":"python,drake","A_Id":73939796,"CreationDate":"2022-10-03T18:53:00.000","Title":"What is the correct way to run a pydrake simulation \"online\"?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Is there a method Revit API where I can select elements in order, highlighting the elements selection.\nPlease note, Selection.PickObjects() does the selection & highlighting but does not save the elements in the order of Selection.","AnswerCount":2,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":151,"Q_Id":73950421,"Users Score":0,"Answer":"It is exactly as you say. No, the Revit API does not provide a built-in method providing the functionality you require. You can implement it yourself by calling PickObject repeatedly in a loop and collecting the selected elements in your own sorted list.","Q_Score":0,"Tags":"revit-api,revitpythonshell,pyrevit","A_Id":73957038,"CreationDate":"2022-10-04T15:46:00.000","Title":"Selection, Sorting and Highlighting Elements in the selected order using PickObjects() method (Revit API)","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm facing an error when I go in my module to a specific user for example and go to print something.\nThere is my error of odoo:\nraise ValueError('External ID not found in the system: %s' % xmlid)\nValueError: External ID not found in the system: gen_doc.report_cahier_des_charges\nTo explain a little bit more, I'm trying to get the information from the basic module Employees of Odoo and in a custom module to do a report with those information of Employees.\nI'm new in Odoo so i hope that I gave your enough information.\nThank you in advance.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":239,"Q_Id":73958071,"Users Score":0,"Answer":"The error states what the issue is.\n\nEither the xml id used (in your case \"report_cahier_des_charges\")is not defined anywhere in the module which is causing the error. So define this xml id.\nOr you defined the xml id alright, but it is defined below the report calling it. In this case, just move the record whose id is \"report_cahier_des_charges\" above the report calling it. Probably right after\/below the odoo or data tags, just to be safe.\n\nI hope this helps :)","Q_Score":0,"Tags":"python,odoo","A_Id":74786053,"CreationDate":"2022-10-05T08:59:00.000","Title":"ValueError('External ID not found in the system: %s' % xmlid) ValueError: External ID not found in the system: gen_doc.report_cahier_des_charges","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Data base tables get deleted on heroku, even i am using cloudinary storage for static-files. I am using default database sqlite3.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":17,"Q_Id":73994812,"Users Score":0,"Answer":"Now i found out that heroku cleans the database tables of sqlite3. The solution is to use a different database, like postgreSQL.","Q_Score":0,"Tags":"python,django,database,heroku","A_Id":74002363,"CreationDate":"2022-10-08T06:12:00.000","Title":"Data base tables get deleted on heroku in django app","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I wanna build web based file\/media(can be any type such as .mp4, .something) server using Django and JWT will handle the authorization. As normally, all media files are publicly accessible if we copy paste absolute path. How can setup in a way when only authorised user can access that specific file\/media?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":32,"Q_Id":73995210,"Users Score":0,"Answer":"The solution is overriding Django's media serve URL endpoint and modifying that function which handles serving.","Q_Score":1,"Tags":"python,django,jwt","A_Id":74253675,"CreationDate":"2022-10-08T07:34:00.000","Title":"Permission based media server","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a simple python pipeline that crawls a property page for data, the data on the page is divided into states and what type of property. The steps of the pipeline are as follow:\n\nA loop over all combinations of state and property type\nFor each combination, a crawler goes through the corresponding page and collects the URLs of all properties\nFor each property, data is crawled, cleaned and enriched before being stored in a SQLite DB\n\nCurrently this is a single-threaded and very simple process. I want to improve this and I am looking for modern tools to use in my new pipeline. Both to visualize the status of the processing and run it as a multiprocessing pipeline.\nCurrently I have a first idea of using Kafka and Airflow. One process crawls a page for property URLs, and creates Kafka messages for each URL. A second process then takes a single Kafka message and processes it; crawl, clean, enrich, store. Meanwhile in Airflow I can have a nice overview of the status of processes and even retry failed ones. There each combination of state and property type is split into separate DAGs.\nThe issue is however that crawling is not something I can do with multiprocessing, as that will cause too many request to the target page and calls will become blocked eventually. The pipeline will fail.\nMy new idea is to also include Kubernetes. I will have one pod that does the crawling of property URLs. Then a second pod will crawl one property URL at a time. The final pod would be responsible for processing the property data (clean,enrich,store), but this pod I want to have X instances of because crawling the data will be faster than processing it.\nBecause there is a lot of data crawled for each property (around 20 fields, at least one contains a long description of the property), I do not think Kafka is a good option to transfer information between the pods. But I see no other option to include a work queue. The only option I could think of was that messages always only include the URL of a listing. But after crawling, data is stored in SQLite, and the final pod that will clean and enrich the data, will instead need to pull the data from the SQLite DB. Is that a reasonable idea, or are there better options?\nI have tried to google for tutorials and suggestions on how to setup a system with Kubernetes+Airflow+Kafka, but I find nothing. Some pages are specifically only about running Airflow withing Kubernetes, but there is never information about Kafka. Does this mean the combination is not possible, and if so, why not? Also do you have suggestions for better tools or complete systems that I should look into instead?\nApologies if my question is too vague or open, I could not find other places where I could find suggestions for building up this pipeline in the best way possible and give me skills to find a job.","AnswerCount":3,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":165,"Q_Id":73999818,"Users Score":0,"Answer":"Airflow is for scheduling programs, maybe within Kubernetes pods, but not needed; you could run a standalone Airflow worker cluster.\nRegarding Kafka, Airflow isn't really needed for consuming since Kafka topics are endless and continuous. You could publish a url to a multi partitioned Kafka topic, then run as many consumers (threads or processes) as partitions, then you have your parallel processing. Since processing is in parallel, don't use sqlite, since that would require only one instance consuming all data.\nYou can still use Kubernetes to do that processing with Knative or OpenFaaS, instead, for example.\nYou could also use NATS or RabbitMQ since you just need a Queue. Or Celery and Redis are commonly used with Python.","Q_Score":0,"Tags":"python,kubernetes,apache-kafka,multiprocessing,airflow","A_Id":74001436,"CreationDate":"2022-10-08T19:08:00.000","Title":"Multiprocessing pipeline with Kafka+Airflow+Kubernetes","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I am working on a project, in which we have requirement that we have to start our primary key by 1001. The framework used is Django here.\nSo, we have to create a migration having id as alter field. But I don't know how to alter sequence of primary key. From some articles, I use auto_increment but it gives error of undefined.\nThanks","AnswerCount":2,"Available Count":1,"Score":-0.0996679946,"is_accepted":false,"ViewCount":26,"Q_Id":74024239,"Users Score":-1,"Answer":"One thing you could do is in you migrations file create a RunPython script, and in there create 1000 records of whatever you need to start at pk 1001, and after that you delete all of these objects. Then the next object you will create for that model will have pk 1001. Not really pretty, but it would work.","Q_Score":0,"Tags":"python,django,django-models","A_Id":74024527,"CreationDate":"2022-10-11T07:07:00.000","Title":"Alter primart key in django model, must start with 1001","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am using mailgun to send an email to notify users that their requested download for the data has been completed, with a link to download the file, the file is stored on AWS.\nYour data is ready for download <a href=\"aws-link\" download>here<\/a>\nSomething like this.\nIs there a way to tell the browser to download the file, instead of opening it in a new tab? I guess it's the problem with MIME type, but how do I set it up","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":22,"Q_Id":74024364,"Users Score":0,"Answer":"Okay, so the file is automatically downloaded if I set the Content-Type to binary\/octet-stream when uploading the file in AWS Bucket.\nI was looking into the opposite side of the puzzle.","Q_Score":0,"Tags":"python,mailgun","A_Id":74039655,"CreationDate":"2022-10-11T07:20:00.000","Title":"How do I Set MIME Type for a download link from Mailgun","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Django Form fields needs to be encrypted at server side and needs to be decrypted in client browser while rendering and vice versa for form submission\nOne approach is using JS cryptographic libraries or to use custom encryption code.\nBut, Is there any python package available which implements this where we use this as django form widget along with js library at client side.\nAn example will be a package like the django-autocomplete-light package which provides a widget for autocompletion for the particular field.\nHow to implement this or Is there any package available which can be used.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":75,"Q_Id":74033002,"Users Score":0,"Answer":"JavaScript Web Tokens (JWT) has help you in this, in Python Pyjose can help but the quick, how the JS will receive the keybto encrypt the form data with?","Q_Score":0,"Tags":"python-3.x,django,django-forms,django-crispy-forms,django-widget","A_Id":74041902,"CreationDate":"2022-10-11T19:10:00.000","Title":"How to use JavaScript client-side encryption\/decryption in django forms \/ crispy forms? Is there any python package available which can do this","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"when I try to create an app in FastAPI using the command \"uvicorn main:app --reload\", I get this uvicorn command not found error. My python version is 3.8.9.\nwhen I tried installing uvicorn using \"pip install uvicorn\". It is successfully installed and up to date. But giving command not found error. How can I work with uvicorn command?","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":783,"Q_Id":74039284,"Users Score":0,"Answer":"It cannot find your uvicorn installation. If you installed it in a virtual environment, you have to call it from that virtual env.","Q_Score":0,"Tags":"python,fastapi,uvicorn","A_Id":74039645,"CreationDate":"2022-10-12T09:09:00.000","Title":"How to resolve \"uvicorn: command not found error\" coming while creating FASTAPI?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm building a rest-api using the Django Python framework. I'm using many external python packages. I have created a python virtual environment (python -m venv venv) and after activating the venv environment (venv\\Scripts\\activate), I installed the requests package (python -m pip install requests). Then I pushed my project to my git repo and cloned it onto another machine. When I tried to run my Django project, it asked me to install the requests package again. Why or how can I permanently install packages into my python virtual environment or someplace else where I wouldn't have to install packages again on different machines? I'm looking for a solution similar to NodeJS - npm of installing packages as all the packages are locally installed into the node_modules folder of the project and you don't have to reinstall them on different machines. Thanks","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":27,"Q_Id":74053297,"Users Score":1,"Answer":"The environment itself is not shareable in the way you specify. I'd recommend to use Docker for this use-case. If you create a docker image which has the correct dependencies, then you can easily operate in the same environment on different computers. The python venv cannot be used this way.\nNevertheless, if your requirements.txt files specify package versions, then the venv you create on the two machines should be relatively similar (depending of course on other parameters like the OS, python version, etc.).","Q_Score":0,"Tags":"python","A_Id":74055139,"CreationDate":"2022-10-13T09:16:00.000","Title":"package not being permanently installed inside the python virtual environment","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I deleted my migrations folder accidently so to make things work again I dropped all tables in my database as well. But now even tho python manage.py makemigrations is working, python manage.py migrate still says 'No migrations to apply' why?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":24,"Q_Id":74083479,"Users Score":0,"Answer":"Try these commands :\n\npy manage.py migrate  zero\npy manage.py makemigrations\npy manage.py migrate","Q_Score":2,"Tags":"python,django","A_Id":74083591,"CreationDate":"2022-10-15T22:36:00.000","Title":"Deleted the migrations folder accidently so I dropped all my tables in database but still not working","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a view (start_job_view) in Django that should trigger a very long process.\nI'd like the view to return immediately and add a message to the user (\"your job has started\" using the message framework) and I'd like that when the long process terminates it sends a new message to the user (\"your job has finished\").\nHow can I do this?\nNote: I am not keen to add Celery to my project for this only task...","AnswerCount":4,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":108,"Q_Id":74108699,"Users Score":0,"Answer":"Asuming you have multiple Django server instances running that connect to a dedicated DB server. I'd just use a database table as a \"queue\" to store the tasks that need to run.\nThen use systemd to run a Django command as worker tasks on one or more server instances. When a worker is idle, it can query the table for the next task.\nHave a \"status\" column to mark a task as done. Then your Django frontend can check for available \"done\" tasks, add the message to the returned page, and remove the task from the table.","Q_Score":0,"Tags":"python,python-3.x,django,django-views","A_Id":74110132,"CreationDate":"2022-10-18T09:29:00.000","Title":"Trigger long process in Django view","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am very new to GCP, my plan is create a webhook target on GCP to listen for events on a thirdparty application, kick off scripts to download files from webhook event and push to JIRA\/Github. During my research read alot about cloud functions, but there were also cloud run, app engine and PubSub. Any suggestions on which path to follow?\nThanks!","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":155,"Q_Id":74119702,"Users Score":1,"Answer":"There are use cases in which Cloud Functions, Cloud Run and App Engine can be used indistinctively (not Pubsub as it is a messaging service). There are however use cases that do not fit some of them properly.\nCloudFunctions must be triggered and each execution is (should be) isolated, that implies you can not expect it to keep a connection alive to your third party. Also they have limited time per execution. They tend to be atomic in a way that if you have complex logic between them you must be careful in your design otherwise you will end with a very difficult to manage distributed solution.\nApp Engine is an application you deploy and it is permanently active, therefore you can mantain a connection to your third party app.\nCloud Run is somewhere in the middle, being triggered when is used but it can share a context and different requests benefit from that (keeping alive connections temporarily or caching, for instance). It also has more capabilities in terms of technologies you can use.\nPubSub, as mentioned, is a service where you can send information (fire and forget) and allows you to have one or more listeners on the other side that may be your Cloud Function, App Engine or Cloud Run to process the information and proceed.\nBTW consider using Cloud Storage for your files, specially if you expect to be there between different service calls.","Q_Score":0,"Tags":"python,google-cloud-platform,google-cloud-functions,cloud","A_Id":74121239,"CreationDate":"2022-10-19T03:57:00.000","Title":"Hosting webhook target GCP Cloud Function","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I built a VEEML datastory which contains 12 dimensions and 35 metrics.\nNow, it's really hard to find the metric needed and some of them are depending on some dimensions.\nHow can I display a metric only if the user has chosen a specific dimension in the query module ?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":6,"Q_Id":74123286,"Users Score":0,"Answer":"In a VEEML story, you can hide or show a metric depending on the selection of 1 or more dimensions.\nThat conditions will be applied in the Query module but also in the chart creation module.\n\nOpen the datafields window : left menu of the story, at the bottom, click on the third icon (the database).\n\nSearch for and expand the field on which you want to create the metric\n\nCheck the checkbox \u201cIs Metric\u201d and write the metric in the textbox. The option \u201cDisplay Cond.\u201d appears.\n\nCheck it and specify in the textbox all the columns for which ones the metric has to be displayed.The syntax is [\"dimension1\", \"dimesion2\", \"dimension3\"] ...\n\n\n*Eg.\nIf you want to display the metric \u201cAverage\u201d only if the dimension \u201cWeek\u201d is selected, fill the textbox as : [\u201cWeek\u201d]\nIf you want to display the metric \u201cAverage\u201d only if the dimension \u201cWeek\u201d or the dimension \u201cMonth\u201d are selected, fill the textbox as : [\u201cWeek\u201d, \u201cMonth\u201d]*","Q_Score":0,"Tags":"python,data-science,visualization","A_Id":74123324,"CreationDate":"2022-10-19T09:50:00.000","Title":"Display condition on a metric in Veeml","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"import os\nimport django\nimport sys\nimport csv\nfrom collections import defaultdict\nsys.path.append('\/Users\/apple\/Documents\/COMPUTER-SCIENCE\/ADV-WEB-DEV\/Topic-files\/topic2')\nos.environ.setdefault('DJANGO_SETTINGS_MODULE', 'bioweb.settings')\ndjango.setup()\nError:\nimport django\nModuleNotFoundError: No module named 'django'\n(venv) (base) apple@apples-MacBook-Pro topic2 %","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":40,"Q_Id":74129361,"Users Score":0,"Answer":"go to your project root directory and run:\npython manage.py shell < [path to your script]\n\"path to your script\" means the route to your script something like this:\n\/Users\/apple\/Documents\/COMPUTER-SCIENCE\/ADV-WEB-DEV\/scripts\/my_script.py","Q_Score":0,"Tags":"python,django","A_Id":74129518,"CreationDate":"2022-10-19T17:11:00.000","Title":"I am trying to run a standalone Django script but i keep getting this error: ModuleNotFoundError: No module named 'django'","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"My final project in CS50 is a salary slip generator in pdf format. I got these functions with me but I don't know to test them.\n\ncreate_pdf() - function that opens my data file (.xlsx), iterates over its data, puts them into variables which will then be called by fpdf to put them into the pdf file. This function will generate as much pdf's depending on the number of data inside the data file.\n\nmerge_pdf() - function that merges all the previously generated pdf's into one pdf. This function I might try to check if it outputs the merged pdf or not but still not quite clear to me how to implement it.\n\nget_print_date() - this function only I created just for the sake of adding extra functions to my project hoping that I can test it. It takes datetime.now() and returns the string value of the current date and time. But how can I assert also the return value if the return value changes over time?","AnswerCount":1,"Available Count":1,"Score":0.3799489623,"is_accepted":false,"ViewCount":43,"Q_Id":74136789,"Users Score":2,"Answer":"Mine is a generic answer regardless of the language used.\nGenerally, when I have to test some method or function that has side effects or does not return any data, I check for some basic functions called within this function, and I mock them.\nThese core features are features that I assume are working and do not need to be further tested, such as:\n\nFiles management;\nAccess to the database;\netc..\n\nI therefore suggest you find some libraries to allow you to make mocks of the services used within your functions and change the architecture of your software accordingly.\nI hope I was clear.","Q_Score":0,"Tags":"python,unit-testing,pyfpdf","A_Id":74136971,"CreationDate":"2022-10-20T08:37:00.000","Title":"Unit Testing Functions without Return Value in Python","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have overridden django_tenants.utils.tenant_context to activate a timezone specific to the tenant.\nclass NewTenantContext(tenant_context): ...\nI can use the new context like this\nwith ALSTenantContext(tenant): ...\nAll this works fine for a specific process to start for a tenant.\nBut how do I make sure NewTenantContext is used when tenant is set from Admin or API?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":45,"Q_Id":74154851,"Users Score":0,"Answer":"I am able to resolve this by overriding middleware  django_tenants.middleware.TenantMainMiddleware","Q_Score":0,"Tags":"python,multi-tenant,django-tenants","A_Id":74190739,"CreationDate":"2022-10-21T14:03:00.000","Title":"Django: Multi Tenancy : Override Tenant Context","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"Can someone explain to me why you can use a method like count() for a QuerySet Object but something like pop() does not work.","AnswerCount":2,"Available Count":2,"Score":1.2,"is_accepted":true,"ViewCount":34,"Q_Id":74155494,"Users Score":2,"Answer":"The reason is that, unlike a list, a QuerySet is a special type that isn't evaluated unless you perform any computation on its data. Its purpose is to store query results and can be manipulated using query methods such as .filter(), .order_by(), etc. As opposed to a list of objects that consumes RAM space, a QuerySet won't do that much. So, it doesn't support list methods such as remove or pop, etc. that perform manipulation.","Q_Score":0,"Tags":"python,django,django-models,django-rest-framework","A_Id":74155609,"CreationDate":"2022-10-21T14:53:00.000","Title":"Django ORM question about methods for the QuerySet Object","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Can someone explain to me why you can use a method like count() for a QuerySet Object but something like pop() does not work.","AnswerCount":2,"Available Count":2,"Score":0.0996679946,"is_accepted":false,"ViewCount":34,"Q_Id":74155494,"Users Score":1,"Answer":"The QuerySet is a representation of a database query. It produces a set of model instances from the database.\ncount() works, because that is a database operation: counting rows matches by the query.\npop() however would require removing an element from that set. But that set exists only in memory, as a representation of a database state. Modifying it in memory would not modify the database - so pop() makes no sense on a QuerySet.\nYou'd use QuerySet[index] to retrieve a specific element, and then ModelInstance.delete() to remove that instance from the database.\nIn other words: a QuerySet is a read-only view on database data. It is not a fully mutable list-like collection.","Q_Score":0,"Tags":"python,django,django-models,django-rest-framework","A_Id":74177507,"CreationDate":"2022-10-21T14:53:00.000","Title":"Django ORM question about methods for the QuerySet Object","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a microservice project. I am using DRF. Now I need to add notification system to this project. Since we have multiple service notification can come from any service. We also have web version and mobile version in frontend.\nWhich will be better option for notification service? Notification with firebase or Notification with celery?","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":118,"Q_Id":74161274,"Users Score":0,"Answer":"if you have mobile version, use Firebase Cloud Messagin and firestore with listening realtime updates. I will speed up your development with possibility to add new firebase features later.","Q_Score":0,"Tags":"python,django-rest-framework,architecture,notifications,microservices","A_Id":74175437,"CreationDate":"2022-10-22T05:22:00.000","Title":"Microservice notification better with Firebase or celery?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"Where is the relationship between a form (found in a vue component) and a django backend meant to be defined?\nFor my frontend, I am using VueJS, my main component is able to fetch data from json file using an api defined in my django view and url file.\nI do not understand how after filling in my Vue form, I may directly submit data to my django database. Tutorials online utlise django's built-in form related features; this, I am not after.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":199,"Q_Id":74172179,"Users Score":0,"Answer":"When you want to use SPA like Vue or React or Angular, it will be better to make communication between frontend and back end using API\nTo achieve that with django you can use\n\nDjango Rest Framework\n\nBest of luck","Q_Score":0,"Tags":"javascript,python,django,vue.js","A_Id":74172593,"CreationDate":"2022-10-23T15:02:00.000","Title":"Submitting a form from Vue component to POST data into django backend database","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Short description:\nDataflow is processing the same input element many times, even at the same time in parallel (so this is not fail-retry build-in mechanism of dataflow, because previous process didn't fail).\nLong description:\nPipeline gets pubsub message in which path to GCS file is stored.\nIn next step (DoFn class) this file is open and read line by line, so sometimes for very big files this is long process and takes up to 1 hour (per file).\nMany times (very often) those big files are processing at the same time.\nI see it based on logs messages, that first process loads already 500k rows, another one 300k rows and third one just started, all of them are related to the same file and all of them based on the same pubsub message (the same message_id).\nAlso pubsub queue chart is ugly, those messages are not acked so unacked chart does not decrease.\nAny idea what is going on? Have you experienced something similar?\nI want to underline that this is not a issue related to fail and retry process.\nIf first process fails and second one started for the same file - that is fine and expected.\nUnexpected is, if those two processes lives at the same time.","AnswerCount":2,"Available Count":1,"Score":0.0996679946,"is_accepted":false,"ViewCount":79,"Q_Id":74179315,"Users Score":1,"Answer":"Here is a likely possibility:\n\nreading the file is being \"fused\" with reading the message from Cloud Pubsub, so that the hour of processing happens before the result is saved to Dataflow's internal storage and the message can be ACKed\nsince your processing is so long, Cloud Pubsub will deliver the message again\nthere is no way that Dataflow cancel's your DoFn processing, so you will see them both processing at the same time, even though one of them is expired and will be rejected when processing is complete\n\nWhat you really want is for the large file reads to be split and parallelized. Beam can do this easily (and currently I believe is the only framework that can). You pass the filenames to TextIO.readFiles() transform and the reading of each large file will be split and performed in parallel, and there will be enough checkpointing that the pubsub message will be ACKed before it expires.\nOne thing you might try is to put a Reshuffle in between the PubsubIO.read() and your processing.","Q_Score":1,"Tags":"python,google-cloud-dataflow,apache-beam","A_Id":74214957,"CreationDate":"2022-10-24T09:48:00.000","Title":"Dataflow streaming job processes the same element many times at the same time","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I created a an AWS Cloudwatch Canary through the Import from S3 option, because I had a packaged python script and directory.  That went well, and works as expected.  However, I cannot find how to update the script package for the existing Canary.\nThere has to be an easier way than creating a new canary every time I update the zip, any thoughts?\nIf I upload a new zip to s3, it does not automatically read it in again, it continues to run the old code.  If I go to edit, there is no Upload option, just the parsed out handler function.  And, if I make any changes to the handler function it times out when saving it (\"Error: Request Too Long\").","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":67,"Q_Id":74224725,"Users Score":1,"Answer":"I still don't see a way to do this in the UI, but I am able to do it from the command line.  I now package up my scripts (zip), then update the zip in s3 (aws s3 cp s3:\/\/path\/python.zip) and then\naws synthetics update-canary --name test-canary --code '{\"S3Bucket\": \"path\", \"S3Key\":\"python.zip\", \"Handler\": \"test-canary.handler\"}'","Q_Score":1,"Tags":"python,amazon-cloudwatch","A_Id":74238835,"CreationDate":"2022-10-27T15:39:00.000","Title":"How to update AWS Cloudwatch Canary zip file","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am inside SSH window of VM\nI created a virtal environment using command :virtualenv -p python3.8 venv\nnow i try to install dj-rest-auth using command pip install dj-rest-auth and i am receiving error\nBuilding wheels for collected packages: dj-rest-auth\nBuilding wheel for dj-rest-auth (setup.py) ... error\nBut it allow me to install using sudo pip install dj-rest-auth but while running my django project it is not recognising and i am receiving module not found error\nPython 3.8.3 is the version\ncan any one tell me the solution for it?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":15,"Q_Id":74237395,"Users Score":0,"Answer":"if we create a virtual environment having python installed inside VM using command python3 -m venv myenv then no error reeceived and all librarie got installed","Q_Score":0,"Tags":"python,django,django-rest-framework","A_Id":74275182,"CreationDate":"2022-10-28T15:13:00.000","Title":"error while installing dj-rest-auth inside google cloud vm and i created a virtualenv","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm using Django on Ubuntu 18.04.\nI've got everything set up. And I type python manage.py run_huey in the server (through an SSH connection) to start huey, and it works.\nHowever this is done through the command line through SSH and it will shut off when I close the SSH connection.\nHow do I keep run_huey running so that it will stay active at all times? Furthermore, after a system reboot, how do I get run_huey to automatically start?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":33,"Q_Id":74243241,"Users Score":0,"Answer":"You may explore supervisorctl utility for ubuntu, it keeps process running and can log into file and any other features. Google it.","Q_Score":0,"Tags":"python-huey","A_Id":74613571,"CreationDate":"2022-10-29T06:24:00.000","Title":"Using Huey with Django: How to keep run_huey command running?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I was using Selenium Python to log in to Instagram and open some pages. It worked fine, but after two days the Instagram started sending the message \"CSRF token missing or incorrect\". And now I can't even log in with my script or manually to any accounts and with any browsers such as Chrome or FireFox on my laptop.\nI'm not sending any cookies with my Selenium. And most of the search results are about Django which I'm not using.\n\nI erased the cookies, but it it didn't work.\n\nI tried to change my IP address to make sure if I'm banned from Instagram, but it didn't work.\n\nI tried to check for the scrf-token in my URL with Selenium and sending it to the driver, but it didn't work.\n\n\nI'm not sure if the solution is within the code, because now I can't log in even manually, so maybe there must be a problem with my system settings or from Instagram side.\nCan I fix this with Selenium? Or how can I fix this?","AnswerCount":4,"Available Count":1,"Score":0.049958375,"is_accepted":false,"ViewCount":42853,"Q_Id":74243874,"Users Score":1,"Answer":"As mentioned @350D this way probably work, but it doesn't work for me.\nI had to remove my local storage (from inspect).\nand if you have two step verification, you remove it temporarily.","Q_Score":20,"Tags":"python,python-3.x,selenium,instagram,csrf-token","A_Id":75460468,"CreationDate":"2022-10-29T08:31:00.000","Title":"I can't log in to Instagram: \"CSRF token missing or incorrect\"","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a string from which I would like to remove the HTML tags.\n\n\"overview\":\"\\u003cp style=\\\"margin: 0px 0px 20px; padding: 0px;\nline-height: 20px; outline: none !important; min-height: 1em; color:\n#333333; font-family: Arial, Helvetica, sans-serif, emoji; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight:\nnormal; letter-spacing: normal; orphans: auto; text-indent: 0px;\ntext-transform: none; white-space: normal; widows: auto; word-spacing:\n0px; -webkit-text-size-adjust: auto; text-align:\ncenter;\\\"\\u003e\\u003cspan style=\\\"font-family: arial, helvetica,\nsans-serif;\\\"\\u003e\\u003cstrong\\u003e\\u003cspan\nstyle=\\\"font-size: 18pt; outline: none !important;\\\"\\u003eWTS\/VDI macOS\\u003c\/span\\u003e\\u003c\/strong\\u003e\\u003c\/span\\u003e\\u003c\/p\\u003e\\n\\u003chr\\u003e\\n\\u003cp\\u003e\\u003cspan ......\n\nI would like to just have\n\n\"overview\":\"WTS\/VDI macOS.....\n\nI tried with BeautifulSoap and Python Bleach, but it only recognizes if the tags are written in '<' and '>' format. Is there a library or any function which removes this for me? Or should I convert the unicode characters and do it manually?","AnswerCount":3,"Available Count":1,"Score":0.0665680765,"is_accepted":false,"ViewCount":68,"Q_Id":74244208,"Users Score":1,"Answer":"You string is presumably from somewhere else if you encode it as utf-8 then it becomes:\n'\"overview\":\"<p style=\"margin: 0px 0px 20px; padding: 0px; line-height: 20px; outline: none !important; min-height: 1em; color: #333333; font-family: Arial, Helvetica, sans-serif, emoji; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; text-align: center;\"><span style=\"font-family: arial, helvetica, sans-serif;\"><strong><span style=\"font-size: 18pt; outline: none !important;\">WTS\/VDI macOS<\/span><\/strong><\/span><\/p>\\n<hr>\\n<p><span...' which tools such as BeautifulSoap should handle.\nNote that if your string is the result of a subprocess.run with capture turned on then adding a encoding=\"utf-8\" parameter should do this for you.","Q_Score":0,"Tags":"python,html,css,beautifulsoup","A_Id":74244479,"CreationDate":"2022-10-29T09:35:00.000","Title":"Remove unicode HTML tags in Python","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"i am trying to hide a password in my deployment on Github, but neither .gitignore with a config.py file nor dotenv works when i try to deploy. Anyone who knows a solution?\nI connected my .gitignore to a config.py with my variable: APP_PASSWORD = \"blablabla\". However, it does not load when i run github through Heroku. Downloading dotenv and load_dotenv did not work either. It worked on my local environment, but not on github.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":77,"Q_Id":74263464,"Users Score":0,"Answer":"I faced a similar issue; I had worked on a Discord bot, and I was trying to deploy it through Heroku. Instead of dotenv, I went on my Heroku dyno \/ project, and under settings, I created a config var, with the key being \"TOKEN\" and the value being my bot token. I was able to access this in my main.py by saying os.environ[\"TOKEN\"] (after importing os and environ).","Q_Score":0,"Tags":"python,github,environment-variables,dotenv","A_Id":74264039,"CreationDate":"2022-10-31T12:43:00.000","Title":"How do i hide a variable in Github","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am using FastAPI for Machine Learning model deployment in two cases based on the nature of the data we feed as inputs (features) which it an array of json. Thus, if inputs are matching method1 we execute the according model to it otherwise we apply method2 and execute the trained model for this case.\nHow can I achieve this process using FastAPI ? (process of verifieng the input data and apply the matching model for that data)","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":44,"Q_Id":74265837,"Users Score":1,"Answer":"You can create a pydantic scheme as a dependency, that includes all the possible fields (Optional) for both data types and check incoming data by special field into it. Also you can use different routes. Could you show JSON samples?","Q_Score":0,"Tags":"python,api,machine-learning,fastapi,pydantic","A_Id":74273832,"CreationDate":"2022-10-31T15:48:00.000","Title":"FastAPI inputs check format and execute according method for that given format","Data Science and Machine Learning":1,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a python project that consumes messages from an AWS SQS queue and performs tasks. It does this by constantly trying to get messages from the queue in an infinite loop and performing operations on each message when they're found.\nI'd like to deploy this code in a docker container and would like to integrate a health check to ensure certain things are working.\nI am trying to understand what the best way is to integrate a light weight webserver alongside the infinite loop to serve a \/health-check endpoint.\nThe main option I have considered and tried to implement is to run a webserver along side the infinite loop. I have tried this using popular libraries like flask\/fastapi, however it seems like they both block the main thread, requiring the worker to run in its own thread.\nThis seems to introduce further complexity by requiring the queue consumer to also handle thread errors and sigint messages from the main thread.\nIs there a simpler way to introduce a health check without requiring the implementation of thread<>thread message handling?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":97,"Q_Id":74270482,"Users Score":1,"Answer":"Given the lack of responses (and downvote) I ended up just continuing with doing things in parallel.\nI used python's multiprocessing library to put a fastapi endpoint in a separate process. I then call terminate on the process when the long running worker process exits for any reason.\nI am not handling errors in the separate process since the healthcheck is very simple and if it fails, the entire container will restart (thanks Docker).\nI am still looking for a more elegant solution if anyone has any experience here.","Q_Score":0,"Tags":"python","A_Id":74283391,"CreationDate":"2022-11-01T01:01:00.000","Title":"Running an infinite loop worker in python with a HTTP health check endpoint","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"Ok, no code here, more trying to get some directions.\nI'm working on my home automation using tuya objects. Till now I was able to create a websocket (using python websockets and asyncio) that gets a message and turn on my devices. I created a flask website to configure passwords, keys etc. Now what I'm trying to achieve is using a NFC tag(scanned by my phone) call the websocket sending a message. I bought some NFC tags, got a an android app called NFC Tools to record data into the NFC tag.\nProblem is NFC tools doesnt give me too many options I can add text, and URLs but I dont know how to call my websocket from there. Can I call it using its URL like ws:\/\/something.go? Can I make the phone not open a browser when I scam the tag? Should I create a page on flask for that and put the page address?\nAnyway, I'm kind of lost. Can you guys point me in the right direction?","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":47,"Q_Id":74275501,"Users Score":0,"Answer":"End up creating a get route on flask and using NFC Tools Pro with http get to access it. The route just send a message to my websocket and turn on or off my devices. Thx Andrew for the tip I will have that in mind if this goes anywhere far from a personal project.","Q_Score":0,"Tags":"python,flask,mobile,websocket,nfc","A_Id":74282375,"CreationDate":"2022-11-01T11:52:00.000","Title":"How Call a Python Websocket from a NFC Scanned on the phone(straight from the phone like with a URL)","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Below is all of the error, I think it must be some config or version wrong\n2022-11-01 19:43:58 [scrapy.crawler] INFO: Overridden settings:\n{'BOT_NAME': 'spider2022', 'NEWSPIDER_MODULE': 'spider2022.spiders', 'REQUEST_FINGERPRINTER_IMPLEMENTATION': '2.7', 'ROBOTSTXT_OBEY': True, 'SPIDER_MODULES': ['spider2022.spiders'], 'TWISTED_REACTOR': 'twisted.internet.asyncioreactor.AsyncioSelectorReactor', 'USER_AGENT': 'Mozilla\/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit\/537.36 ' '(KHTML, like Gecko) Chrome\/70.0.3538.102 Safari\/537.36'}\npackages\/scrapy\/downloadermiddlewares\/retry.py\", line 25, in \nfrom twisted.web.client import ResponseFailed\nFile \"\/Users\/zhangyiran\/opt\/anaconda3\/lib\/python3.9\/site-packages\/twisted\/web\/client.py\", line 24, in \nfrom twisted.internet.endpoints import HostnameEndpoint, wrapClientTLS\nFile \"\/Users\/zhangyiran\/opt\/anaconda3\/lib\/python3.9\/site-packages\/twisted\/internet\/endpoints.py\", line 63, in \nfrom twisted.python.systemd import ListenFDs\nFile \"\/Users\/zhangyiran\/opt\/anaconda3\/lib\/python3.9\/site-packages\/twisted\/python\/systemd.py\", line 18, in \nfrom attrs import Factory, define\nModuleNotFoundError: No module named 'attrs'\n(venv) (base) zhangyiran@zhangyirandeair spider2022 % ``\n\"","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":192,"Q_Id":74283869,"Users Score":0,"Answer":"In one code I used import - 'from scrapy.crawler import CrawlerProcess'. Then, in other spiders, I began to have the same problem as you. When I commented out the import CrawlerProcess - the problem went away.","Q_Score":0,"Tags":"python,scrapy","A_Id":74943392,"CreationDate":"2022-11-02T02:52:00.000","Title":"why my scrapy not run? I'm a new user of scrapy and it cannot create csv","Data Science and Machine Learning":1,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"How can I queue the multiple API request in FastAPI.\nFor example if there is an API which takes 10 seconds to complete the request and there are 10 API requests at same time then how can We handle that part.\nIf anyone can help on this then it would be a great help\nThanks\nI tried to use the selenium using fastAPI and Gunicorn and its working fine if there one request at a time but if I will do multiple request the selemium generate error.\nSo I'm trying to find a solution like queue processing in FastAPI.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":261,"Q_Id":74286292,"Users Score":0,"Answer":"Queueing is done by the server (gunicorn in your case), not by FastAPI.\nGunicorn has a backlog where the requests are being queued. You can control it using --backlog=N switch. The default backlog size is 2048, so the error is probably due to a timeout on the client. Try to increase it.\nYou can spawn multiple workers in Gunicorn, use --workers=N switch. If you worker is CPU-bound, you should set N to the number of available cores. It's a better solution.\nAnd, if your worker is IO bound, use an asynchronous model to process more requests at once. This is the best solution.","Q_Score":0,"Tags":"python,linux,selenium,gunicorn,fastapi","A_Id":74320684,"CreationDate":"2022-11-02T08:29:00.000","Title":"How to Queue the multiple API requests at same time in FastAPI with Gunicorn","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am relatively new to web development and very new to using Web2py. The application I am currently working on is intended to take in a CSV upload from a user, then generate a PDF file based on the contents of the CSV, then allow the user to download that PDF. As part of this process I need to generate and access several intermediate files that are specific to each individual user (these files would be images, other pdfs, and some text files). I don't need to store these files in a database since they can be deleted after the session ends, but I am not sure the best way or place to store these files and keep them separate based on each session. I thought that maybe the subfolders in the sessions folder would make sense, but I do not know how to dynamically get the path to the correct folder for the current session. Any suggestions pointing me in the right direction are appreciated!","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":28,"Q_Id":74292386,"Users Score":0,"Answer":"I was having this error \"TypeError: expected string or Unicode object, NoneType found\" and I had to store just a  link in the session to the uploaded document in the db or maybe the upload folder in your case. I would store it to upload to proceed normally, and then clear out the values and the file if not 'approved'?","Q_Score":0,"Tags":"python,web2py","A_Id":74293312,"CreationDate":"2022-11-02T16:12:00.000","Title":"Using temporary files and folders in Web2py app","Data Science and Machine Learning":1,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am relatively new to web development and very new to using Web2py. The application I am currently working on is intended to take in a CSV upload from a user, then generate a PDF file based on the contents of the CSV, then allow the user to download that PDF. As part of this process I need to generate and access several intermediate files that are specific to each individual user (these files would be images, other pdfs, and some text files). I don't need to store these files in a database since they can be deleted after the session ends, but I am not sure the best way or place to store these files and keep them separate based on each session. I thought that maybe the subfolders in the sessions folder would make sense, but I do not know how to dynamically get the path to the correct folder for the current session. Any suggestions pointing me in the right direction are appreciated!","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":28,"Q_Id":74292386,"Users Score":0,"Answer":"If the information is not confidential in similar circumstances, I directly write the temporary files under \/tmp.","Q_Score":0,"Tags":"python,web2py","A_Id":74326905,"CreationDate":"2022-11-02T16:12:00.000","Title":"Using temporary files and folders in Web2py app","Data Science and Machine Learning":1,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Can anyone please tell me how to stop my server? I did like the first few things you need to do in order to commence a django webpage, url pattern, request, HttpResponce etc. and I ran my server but that rocket is still showing on my screen despite trying to kill, pkill, ctrl+pause, ctrl+C.\nI'm so done with this...\nI looked up on The Internet how to stop my django server. Nothing worked. On top of that when I ran it I got a \"ModuleNotFoundError\" but the rocket is still showing when I type in the numbers...","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":17,"Q_Id":74306261,"Users Score":0,"Answer":"Without a screenshot, we can only guess the issue.\nI see you've tried some of the basic keybinds, have you tried CTRL+F4?\nYou could also kill the process.\nps auxw | grep runserver\nThis will return a process and the associated PID\nde        7956  1.8  0.6 540204 55212 ?        Sl   13:27   0:09 \/home\/de\/Development\/sampleproject\/bin\/python .\/manage.py runserver\nthen kill it with\nkill 7956\nPlease make sure there are no &'s in your command as it may send it to the background.","Q_Score":0,"Tags":"python,django","A_Id":74306561,"CreationDate":"2022-11-03T16:12:00.000","Title":"I launched a django server and now I can't stop the process","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am running graphviz inside a jupyter notebook in vs code. Everytime I run a cell that generates a graphviz dot Windows sees the file and opens it in Chrome. It is also displayed inline in the jupyter notebook where I want it. How can I prevent Chrome from opening?\nI've tried creating a launch.json as the project didn't have one. This didn't make a difference. I can't find any available configuration settings I can change to prevent Chrome opening.","AnswerCount":2,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":26,"Q_Id":74309255,"Users Score":0,"Answer":"Really obvious answer. When I transitioned from running the .py file from the command line to the jupyter notebook I didn't comment out the dot.view() (a graphviz call) that displays the result graph. Jupyter will display the results without this. Duh.","Q_Score":0,"Tags":"python-3.x,jupyter,graphviz","A_Id":74320589,"CreationDate":"2022-11-03T20:36:00.000","Title":"How to prevent chrome from opening on each run of a juypter notebook that generates a graphviz file?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"i want to know how to set default page when installing new module.\nLike example, My main module is about restaurant ERP, by it's default when i open my module the default page is Restaurant Overview and then i installed reporting sub module with Report Dashboard on it. How to set default page from Restaurant Overview to Report Dashboard when i open restaurant module ?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":27,"Q_Id":74329894,"Users Score":0,"Answer":"Odoo permits to set an initial action for every user.\nFrom Settings -> Users and Companies -> Users pick one user.\nMove to Preferences tab, and pick desired action in Initial page action field.\nRepeat this for every user.","Q_Score":0,"Tags":"python,xml,odoo,odoo-14","A_Id":74408614,"CreationDate":"2022-11-05T17:16:00.000","Title":"Set default page when installed new module","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Before now, the main domain was serving a WordPress website but I needed to replace that with a new django application.\nI was able to successfully deploy the Django application to cPanel, and the application was served on a subdomain without any problems. But when I edit the application url to point to the main domain, the homepage renders without the static files. Initially, I thought it was a static file issue until I tried to access other pages, but all I keep getting is a 404 page that is being served by the old WordPress. Somehow the old wordpress website is conflicting with the django app.\nI'm not sure why the old wordpress is still trying to serve the new django pages except the homepage, even though static files are also missing on the homepage.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":31,"Q_Id":74366525,"Users Score":0,"Answer":"I figured out that it was the wordpress installation that was interfering with the Django application, so I renamed the wordpress index.php file, and everything works now. This means that the problem is not with the Django configuration but with the fact that a WordPress website was running on that domain before.\nChanging the index.php file name fixed it; I could have deleted all the WordPress files and folders and it would still work, but since I still want to keep the files, renaming the index.php means that WordPress won't be able to load the file.","Q_Score":0,"Tags":"python,django,wordpress,deployment,cpanel","A_Id":74372314,"CreationDate":"2022-11-08T20:03:00.000","Title":"How to properly config a django application on cpanel","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I can't find the exact guide of what I want to do, it's more of a structural and architectural issue:\nTooling:\n\nPython 3.9\nFastAPI\nUvicorn\nSome scripts to monitor the folders\nIt'll run under docker when its done\n\nThe exact task:\nI want to build a web-app that lists the photos in a directory and shows them in a grid in the browser.\nThe key points here:\n\nIt will use watchdog to immediately get any added or removed items.\nClients will connect with a web socket (I've followed those tutorials)\nDeltas will be send to observing clients\n\nThe last bit is my issue, and to the point of the question:\nWhat is a \"accepted\/best practice\" for having my watchdog script send the added\/removed items to the connected client web sockets.\nI can't for the life of me work out how they communicate, running in uvicorn I just can't start an arbitrary background job.... I know in a dev environment I can start uvicorn manually, but I want it to follow scalable patterns even if it's just for light usage.\nIn short: How can a listening python script inform my fastAPI there's new data\nThe easy\/obvious answer is to expose a management API that the wathcdog script can send... but is there any sort of message bus that fastAPI can listen to?\nAWSGI is new to me, I have some experience with python async\/scheduler, but have mostly used WSGI frameworks like Bottle where scheduling\/threading isn't an issue.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":37,"Q_Id":74369127,"Users Score":0,"Answer":"Ok, unless anyone has any amazing ideas, the best solution is:\nConnect to REDIS, pull existing values at the time the client web socket connects.\nThe worker process(es) can push new values via REDIS.\nSince the connected client handler can use asyncio, they can subscribe to the pub\/sun model.\nProblem solved, yes it requires REDIS but that\u2019s easy enough in docker.\nWhy REDIS?\nLow boiler plate code needed, full pub\/sub support and low setup pain.","Q_Score":2,"Tags":"python,websocket,fastapi","A_Id":74373639,"CreationDate":"2022-11-09T01:57:00.000","Title":"How to LISTEN\/GET for updated data to send to subscribed websocket clients using FastAPI","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"Scenario : To login to the application, need to enter the username and token sent on register email id.\nHow can we automate above scenario in playwright using java language.\nThank you in advance.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":49,"Q_Id":74378397,"Users Score":0,"Answer":"You can automate your email login and collect the token from your email, then use the token for your main login. I think this process will help you and I don't think there are any other processes to do this scenario. You can use a different page for email login and token collection in the same browser context or can you use an entirely different browser context. I must tell you this approach is not a good way. Hope this will help you.","Q_Score":0,"Tags":"playwright-python,playwright-test,playwright-sharp,playwright-java,playwright-dotnet","A_Id":74441300,"CreationDate":"2022-11-09T16:37:00.000","Title":"Automate Tokens base login in Playwright. Java","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a django form (formA) that inherits from modelform.\nIn another app, I have a form that derives from that form (formB).\nThis all works ok, including obtaining fields from the base class formA, but when the clean method is called, it doesn't call the formA clean method.  Instead it skips formA, and calls django's modelform.clean.\nI can create a clean method in formB and this is called, but calling the super().clean() method also steps immediately into django's modelform.clean.\nWhy might this be happening and what do I have to do to get the correct inheritance chain for the clean method?\nMTIA","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":28,"Q_Id":74390056,"Users Score":0,"Answer":"It turned out that the different apps were in different venv prefixes, and this was why the inheritance wasn't working.\nSo, all fixed now.","Q_Score":0,"Tags":"python,django,oop,inheritance,django-forms","A_Id":74970181,"CreationDate":"2022-11-10T13:45:00.000","Title":"django subclass not calling superclass (derived from modelform) clean method","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a dockerized Python code that exposes some APIs via Swagger docs using FastAPI.  This software allows me to schedule tasks that run every 10 minutes indefinitely until I delete the task.\nAfter running the application for 20-30 days, it gets exceptionally slow (going from 9 seconds to over 5 minutes per execution). I believe there's some memory leak occurring and want to implement garbage collection.\nHowever, I am not sure where to put garbage collection.  Would I write import gc and gc.enable() in my FastAPI main.py file where all my APIs are?  Or would I have to import gc in each Python module?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":327,"Q_Id":74452013,"Users Score":0,"Answer":"Garbage collection is enabled by default, so running gc.enable() or gc.collect() will not change anything.","Q_Score":2,"Tags":"python,memory-management,garbage-collection","A_Id":75353321,"CreationDate":"2022-11-15T20:50:00.000","Title":"Where to implement garbage collection in a Dockerized FastAPI application?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I am using SublimeText3 and writing HTML\/CSS so I set spaces to 2 on editing HTML\/CSS files but I want to use 4 spaces auto on editing .py files.\nHow to do it?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":19,"Q_Id":74469375,"Users Score":1,"Answer":"While you have any particular file open, choosing Preferences > Settings - Syntax Specific will open\/create a set of preferences that apply only to files of that particular type.\nSettings in a syntax specific preferences file are applied on top of the global default preferences, allowing you to specify for particular files that you would like a few things to be configured differently, while all other settings remain at the global preference.\nSo generally speaking, to have different settings for Python, do this while you're editing a Python file and apply settings to the right hand pane that apply the specific settings changes you would like to see in Python files.","Q_Score":0,"Tags":"python,sublimetext3","A_Id":74479695,"CreationDate":"2022-11-17T02:15:00.000","Title":"SublimeText3: How to set spaces to 4 on .py file only?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to make changes in a model instance A, when a second model instance B\nis saved,updated or deleted.\nAll models are in the same Django app.\nWhat would be the optimal way to do it?\n\nShould I use signals?\nOverride default methods[save, update,delete]?\nSomething else?\n\nDjango documentation warns:\n\nWhere possible you should opt for directly calling the handling code, rather than dispatching via a signal.\n\nCan somebody elaborate on that statement?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":21,"Q_Id":74474918,"Users Score":0,"Answer":"The performance impact of your signal handlers depends of course on their functionality. But you should be aware of the fact that they are executed synchronously when the signal is fired, so if there's a lot of action going on in the handlers (for example a lot of database calls) the execution will be delayed.","Q_Score":0,"Tags":"python,django,model,signals","A_Id":74475007,"CreationDate":"2022-11-17T11:45:00.000","Title":"Update Django model field when actions taking place in another model","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I had a FastAPI app that had been using Passlib's bcrypt module to hash passwords.\nHere's an example string that is stored in the database as a password: $2b$12$62GCnIkiQp7dE\/N2.Al4t.ODW.JYXCz8rHHmaLt63NnML4xDgKhFK\nNow, the problem is I'm not sure whether it's possible to migrate this hash over to my new django application, since django stores hashes in a string that looks like this: <algorithm>$<iterations>$<salt>$<hash>\nI thought the solution could be that the PassLib hash is B64 encoded, but I'm not really sure how to decode it into something that works for Django.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":54,"Q_Id":74478134,"Users Score":0,"Answer":"Okay, so after trying around I came up with the solution\nFirst: add \"django.contrib.auth.hashers.BCryptPasswordHasher\" to settings.PASSWORD_HASHERS\nNow, you can to every string that looks $2b$12$62GCnIkiQp7dE\/N2.Al4t.ODW.JYXCz8rHHmaLt63NnML4xDgKhFK you add bcrypt$ for the result to look like bcrypt$$2b$12$62GCnIkiQp7dE\/N2.Al4t.ODW.JYXCz8rHHmaLt63NnML4xDgKhFK.\nNot sure why there have to be two dollar signs after the method name, but if they are not there - django raises an exception: it expect 5 objects from hash.split(\"$\"), and the second object is called \"empty\".\nAfter doing this to my passwords that I used in my FastAPI app and adding users to django, authorization started to work.","Q_Score":0,"Tags":"python,hash,bcrypt,pbkdf2","A_Id":74496210,"CreationDate":"2022-11-17T15:33:00.000","Title":"How to migrate password hashes from Passlib.bcrypt to Django's default pbkdf2_sha256?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a ML model with fast api wrapper running on google cloud VM, it runs fine when ssh terminal is open. but once I close the terminal it runs for 10 more minutes maybe and then the api returns 502 bad gate way\nI'm using nginx with this config\n server{listen 80; server_name: public ip; location \/{proxy_pass http:\/\/127.0.0.1:8000;}}\nplease let me know if there is any way I can fix this problem.\nreran everything sill same error","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":20,"Q_Id":74481058,"Users Score":0,"Answer":"When you close the SSH terminal session, the applications that you started will be killed. Use a program such as tmux, screen, etc. to create sessions that you can attach to and detach from.\nHowever, since you are using Nginx, there are better methods of managing applications that are being proxied. For development, your current method is OK. For production, your proxied applications should be started and managed by the system as a service.","Q_Score":0,"Tags":"python,python-3.x,nginx,google-cloud-platform,fastapi","A_Id":74482469,"CreationDate":"2022-11-17T19:26:00.000","Title":"fast api stopping after a while on google cloud vm","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I have a django project, that works similar to Jupyter Notebook, in terms of Being a program launched offline in localhost on a web browser, moreover my webapp has an opencv webcam pop-up, that will be launched when you press a button.\nI want to deploy my django project, so it can be launched by just clicking a file in Windows.\nAccording to what I read, There are two possible solutions:\n\nInstall Python Interpreter with Dependencies on client computer first, and using a bat file, to launch the django server.\nContainerizing the Django project with Python and its dependencies, either using Docker or perhaps an exe file?\n\nWhich solution is better? I would prefer the second one personally, but I\u2019m confused how to do so.\nCan it be done as simple as using pyinstaller or not?\nHere are my dependencies for reference:\nDjango\npillow\ndjango-object-actions\ndjango_user_agents\ndjango-cleanup\nopencv-python\nimutils\ncmake\ndlib\nface-recognition","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":91,"Q_Id":74499789,"Users Score":1,"Answer":"I think that the best practise would be to use containers like e.g. docker. After that you have the following benefits:\n\nDependencies inside the container machine (automatically with pip install from requirements file)\nMultiplatform possibility\nVersioning with tags\nYou can run database in a second container if needed (combined with docker compose)\nClick and run with docker desktop\n\nfyi: There a lots of tutorials on how to deploy django in docker containers :)","Q_Score":1,"Tags":"python,django,batch-file,pyinstaller,executable","A_Id":74500471,"CreationDate":"2022-11-19T11:58:00.000","Title":"Deploy Django Project Using Pyinstaller","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"Traceback (most recent call last):\nFile \"\/home\/airflow\/.local\/lib\/python3.8\/site-packages\/airflow\/www\/templates\/airflow\/dags.html\", line 44, in top-level template code\n{% elif curr_ordering_direction == 'asc' and request.args.get('sorting_key') == attribute_name %}\nFile \"\/home\/airflow\/.local\/lib\/python3.8\/site-packages\/airflow\/www\/templates\/airflow\/main.html\", line 21, in top-level template code\n{% from 'airflow\/_messages.html' import show_message %}\nFile \"\/usr\/local\/lib\/python3.8\/site-packages\/flask_appbuilder\/templates\/appbuilder\/baselayout.html\", line 2, in top-level template code\n{% import 'appbuilder\/baselib.html' as baselib %}\nFile \"\/usr\/local\/lib\/python3.8\/site-packages\/flask_appbuilder\/templates\/appbuilder\/init.html\", line 12, in top-level template code\n{% block head_meta %}\nFile \"\/home\/airflow\/.local\/lib\/python3.8\/site-packages\/airflow\/www\/templates\/airflow\/dags.html\", line 63, in block 'head_meta'\n\nFile \"\/usr\/local\/lib\/python3.8\/site-packages\/flask\/helpers.py\", line 370, in url_for\nwith_categories: bool = False, category_filter: t.Iterable[str] = ()\nFile \"\/usr\/local\/lib\/python3.8\/site-packages\/flask\/app.py\", line 2216, in handle_url_build_error\nsubdomain = None\nFile \"\/usr\/local\/lib\/python3.8\/site-packages\/flask\/_compat.py\", line 39, in reraise\nFile \"\/usr\/local\/lib\/python3.8\/site-packages\/flask\/helpers.py\", line 357, in url_for\n# always in sync with the session object, which is not true for session\nFile \"\/usr\/local\/lib\/python3.8\/site-packages\/werkzeug\/routing.py\", line 2179, in build\nwerkzeug.routing.BuildError: Could not build url for endpoint 'Airflow.legacy_graph'. Did you mean 'Airflow.graph' instead?enter code here","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":18,"Q_Id":74515301,"Users Score":0,"Answer":"While starting the Airflow webserver, get Airflow.legacy_graph error.\nLet me know, how can we resolve such kind of error?","Q_Score":0,"Tags":"python-3.x,airflow","A_Id":74515302,"CreationDate":"2022-11-21T07:05:00.000","Title":"Airflow 2.0, Could not build url for endpoint 'Airflow.legacy_graph'","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"a similar question was asked 7 years ago, but the answer\/comments were not that helpful and maybe not current.\nI'm developing a new website and relatively new to django.\nAt times django provides a very detailed error response (very helpful) but other times it simply says 'internal server error' (less helpful).\nwhy is this and what is a good method for troubleshooting 'internal server error' errors?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":52,"Q_Id":74554808,"Users Score":0,"Answer":"this is what works for me.\nif django returns a debug screen I use that.\nif I just get the 'internal server error' message I run python3 \/home\/django\/django_project\/manage.py check","Q_Score":0,"Tags":"python,django","A_Id":75052532,"CreationDate":"2022-11-24T01:52:00.000","Title":"how to troubleshoot django 'internal server error'","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I've a django application with waitress (gunicorn doesn't work on windows) to serve it. Because its production code and its based on windows 2012 server. But I want the django application to run in daemon mode is it possible?\nDaemon mode - app running without command prompt opening\/visible also it'll be helpful to open the shell without closing the server. AutoStart if for some reason system has to restart.\nNote:\nLimitations: The project cannot be moved to UNIX based system.\nThird-Party applications like any .exe file cannot be used.\nYou cannot use Docker as it consumes a lot of space.","AnswerCount":3,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":142,"Q_Id":74574627,"Users Score":0,"Answer":"Another solution - to use Docker, and in your docker you can use gunicorn or any other linux  feature","Q_Score":0,"Tags":"python,django,windows,daemon,waitress","A_Id":74674579,"CreationDate":"2022-11-25T15:02:00.000","Title":"Django waitress- How to run it in Daemon Mode","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I've a django application with waitress (gunicorn doesn't work on windows) to serve it. Because its production code and its based on windows 2012 server. But I want the django application to run in daemon mode is it possible?\nDaemon mode - app running without command prompt opening\/visible also it'll be helpful to open the shell without closing the server. AutoStart if for some reason system has to restart.\nNote:\nLimitations: The project cannot be moved to UNIX based system.\nThird-Party applications like any .exe file cannot be used.\nYou cannot use Docker as it consumes a lot of space.","AnswerCount":3,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":142,"Q_Id":74574627,"Users Score":0,"Answer":"Just add & at the end of command","Q_Score":0,"Tags":"python,django,windows,daemon,waitress","A_Id":74574671,"CreationDate":"2022-11-25T15:02:00.000","Title":"Django waitress- How to run it in Daemon Mode","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"In a website having a \"Comment\" and \"reply to a comment\" system.\nAfter each comment in the template, There's a \"Add a reply\" form which have a hidden input to carry the comment pk on its value attribute.\n\nHow to prevent the end user from editing that hidden input value ?\nAnd If this is not possible, What would be the correct approach ?","AnswerCount":3,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":53,"Q_Id":74582094,"Users Score":0,"Answer":"Preventing the end user from editing: You can use the html input type of hidden\n\n<input type=\"hidden\" value=\"{comment.pk}\">","Q_Score":0,"Tags":"javascript,python,html,django,django-templates","A_Id":74593153,"CreationDate":"2022-11-26T12:17:00.000","Title":"How to prevent end users from editing a hidden input value in a Django social website","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm not able to find the variable that holds the Message Type in event name, \"on_association_requested\" and \"on_association_released\" methods. If we give event.event.name it results in \"EVT_REQUESTED\" or \"EVT_RELEASED\".\nINCOMING DIMSE MESSAGE\nD: Message Type                  : C-ECHO RQ\nD: Presentation Context ID       : 1\nD: Message ID                    : 1\nD: Data Set                      : None\nEND OF DIMSE MESSAGE\nI tried to get the Message Type, I was not able to find how.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":57,"Q_Id":74611115,"Users Score":0,"Answer":"There is no DIMSE message type during association request. Only after an association has already been through request and acceptance are DIMSE messages allowed to be sent.","Q_Score":0,"Tags":"python,pynetdicom","A_Id":74636655,"CreationDate":"2022-11-29T08:32:00.000","Title":"pynetdicom on_association_requested() get request type (C_FIND, C_ECHO etc)","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a DynamoDB with hashes as UserIDs and set as partition key.\nI want to know whether an Item exists in the table or not.\nI gonna pass an array of User-Hashes. Each Hash in this array should be checked whether it exists or not.\nI already found a solution with GetItem. But that would mean, that i have to loop over all the User-Hashes in the array, right?\nDoes anybody has a solution how to do this without looping? Looping takes too much of the performance.","AnswerCount":1,"Available Count":1,"Score":0.3799489623,"is_accepted":false,"ViewCount":25,"Q_Id":74629090,"Users Score":2,"Answer":"There is no shortcut here. You could do parallel (multi-threaded client) calls to reduce the overall latency.","Q_Score":0,"Tags":"python-3.x,amazon-web-services,for-loop,amazon-dynamodb","A_Id":74661425,"CreationDate":"2022-11-30T14:04:00.000","Title":"Checking if an array of items exist in a DynamoDB Python without looping","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a Django container and I want to consume another DL container inside it? For example, I have a Django app that predicting images classes and I want to make the prediction using a docker container and not a python library. That Django app will be containerised as well. In production, I will have three docker containers: Django container + Postgres container + YoloV5 container. How can I link the Django with the YoloV5 so that the prediction inside the Django will be done using the YoloV5?\nI want to connect a deep learning container with Django container to make prediction using the DL container and not a python package.","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":78,"Q_Id":74634267,"Users Score":0,"Answer":"The easiest way to do this is to make a network call to the other container. You may find it simplest to wrap the YoloV5 code in a very thin web layer, e.g. using Flask, to create an API. Then call that in your Django container when you need it using requests.","Q_Score":1,"Tags":"python,django,docker,docker-compose,deep-learning","A_Id":74650168,"CreationDate":"2022-11-30T21:17:00.000","Title":"Consume a docker container inside Django docker container? Connecting two docker containers","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a Django container and I want to consume another DL container inside it? For example, I have a Django app that predicting images classes and I want to make the prediction using a docker container and not a python library. That Django app will be containerised as well. In production, I will have three docker containers: Django container + Postgres container + YoloV5 container. How can I link the Django with the YoloV5 so that the prediction inside the Django will be done using the YoloV5?\nI want to connect a deep learning container with Django container to make prediction using the DL container and not a python package.","AnswerCount":2,"Available Count":2,"Score":1.2,"is_accepted":true,"ViewCount":78,"Q_Id":74634267,"Users Score":0,"Answer":"As suggested by Nick and others, the solution is: by calling the YoloV5 docker container inside Django container using host.docker.internal. I mean that inside Django container (views.py) I used host.docker.internal to call the YoloV5 container.","Q_Score":1,"Tags":"python,django,docker,docker-compose,deep-learning","A_Id":74672298,"CreationDate":"2022-11-30T21:17:00.000","Title":"Consume a docker container inside Django docker container? Connecting two docker containers","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"i'm just start to learn Django and during create a priject i get a problem: \"django.core.exceptions.ImproperlyConfigured: Requested setting EMAIL_BACKEND...\"\nI met description fo this problem on Staciverflow but i don't understand in which file i should set DJANGO_SETTINGS_MODULE???\nPlease, give me detail description\nI tried set this environment variable in my virtualenv which i use for my project in \"activate\" file, but it did'nt help me.\nMaybe my question is stupid but i really don't understand, sorry","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":15,"Q_Id":74646555,"Users Score":0,"Answer":"settings.py file is where you set your project configuration file. one of them is the email backend server. i dont what you have in your project to raise this issue, but django has a built in server for testing perpose.\nInclude this line on your settings.py file\nEMAIL_BACKEND = 'django.core.mail.backends.console.EmailBackend'\nThis sends a message to console everytime u send an email from django app.","Q_Score":0,"Tags":"python,django,django-rest-framework,django-settings","A_Id":74653957,"CreationDate":"2022-12-01T18:25:00.000","Title":"How should i set DJANGO_SETTINGS_MODULE, django.core.exceptions.ImproperlyConfigured: Requested setting EMAIL_BACKEND","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm deploying django app to pythonanywhere where i used APScheduler for automatically send expire mail whenever subscription end date exceed.\nI don't know how to enable threads, so that my web app runs perfectly on pythonanywhere.","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":64,"Q_Id":74651948,"Users Score":1,"Answer":"On hosting platforms like PythonAnywhere, there might be multiple copies of your site running at different times, in order to serve the traffic that you get.  So you should not use an in-process scheduler to perform periodic tasks; instead, you should use the platform's built-in scheduled tasks function.","Q_Score":0,"Tags":"django,django-rest-framework,deployment,pythonanywhere","A_Id":74655227,"CreationDate":"2022-12-02T07:00:00.000","Title":"The scheduler seems to be running under uWSGI, but threads have disabled.You must run uWSGI with the --enable-threads option for the scheduler to work","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I'm restricted to a PostgreSQL as 'model storage' for the models itself or respective components (coefficients, ..). Obviously, PostgreSQL is far from being a fully-fledged model storage, so I can't rule out that I have to implement the whole model training process in Java [...].\nI couldn't find a solution that involves a PostgreSQL database as intermediate storage for the models. Writing files directly to the disk\/other storages isn't really an option for me. I considered calling Python code from within the Java application but I don't know whether this would be an efficient solution for subsequent inference tasks and beyond [...]. Are there ways to serialize PMML or other formats that can be loaded via Java implementations of the algorithms? Or ways to use the model definitions\/parameters directly for reproducing the model [...]?","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":109,"Q_Id":74656521,"Users Score":0,"Answer":"Using PostgreSQL as dummy model storage:\n\nTrain a model in Python.\nEstablish PostgreSQL connection, dump your model in Pickle data format to the \"models\" table. Obviously, the data type of the main column should be BLOB.\nAnytime you want to use the model for some application, unpickle it from the \"models\" table.\n\nThe \"models\" table may have extra columns for storing the model in alternative data formats such as PMML. Assuming you've used correct Python-to-PMML conversion tools, you can assume that the Pickle representation and the PMML representation of the same model will be functionally identical (ie. making the same prediction when given the same input). Using PMML in Java\/JVM applications is easy.","Q_Score":0,"Tags":"python,java,machine-learning,xgboost,lightgbm","A_Id":74659868,"CreationDate":"2022-12-02T13:28:00.000","Title":"How to save XGBoost\/LightGBM model to PostgreSQL database in Python for subsequent inference in Java?","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am constantly waiting for the page to load in web actions. Is there a way to do web actions faster without waiting for the page to load ?\nWhen working with Selenium, it takes time to navigate from page to page.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":41,"Q_Id":74669684,"Users Score":0,"Answer":"If your use case does not require opening an actual browser and interacting with the webpage through simulated user input, then you can use HTTP requests to extract\/manipulate data from the page. Popular modules for this are Requests and BeautifulSoup.","Q_Score":0,"Tags":"javascript,python,selenium,automation,bots","A_Id":74670255,"CreationDate":"2022-12-03T18:52:00.000","Title":"python selenium alternative for web actions","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"When trying to make an animation in Ursina Engine you can call a frameanimation3d function but it requires an obj file for each frame.\nSo if there are 100 .obj files to load, the game will be slower. Is there maybe a way to load all these files faster?\n( Or maybe use panda3d actor function, but doesn't it support a certain type of file? )","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":44,"Q_Id":74671926,"Users Score":0,"Answer":"It is true, you can load animations faster with panda3d or ursina. If you are using panda3d, use their .egg file. You can improve performance by instancing and using LoD. Check the examples in Panda's Manual. Don't forget, ursina is built above panda3d, so you can use Panda's code in ursina.\nP.S.: I'm not sure if Panda's actor supports LoD.\nI wrote this in case if you are using the same model","Q_Score":1,"Tags":"python-3.x,animation,panda3d,ursina","A_Id":74782573,"CreationDate":"2022-12-04T00:21:00.000","Title":"Does anybody know how to load the frameanimation3d in ursina faster?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Using Selenium to try and automate a bit of data entry with Salesforce. I have gotten my script to load a webpage, allow me to login, and click an \"edit\" button.\nMy next step is to enter data into a field. However, I keep getting an error about the field not being found. I've tried to identify it by XPATH, NAME, and ID and continue to get the error. For reference, my script works with a simple webpage like Google. I have a feeling that clicking the edit button in Salesforce opens either another window or frame (sorry if I'm using the wrong terminology). Things I've tried:\n\nLooking for other frames (can't seem to find any in the HTML)\nHaving my script wait until the element is present (doesn't seem to work)\n\nAny other options? Thank you!","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":43,"Q_Id":74674569,"Users Score":0,"Answer":"Salesforce's Lighting Experience (the new white-blue UI) is built with web components that hide their internal implementation details. You'd need to read up a bit about \"shadow DOM\", it's not a \"happy soup\" of html and JS all chucked into top page's html. Means that CSS is limited to that one component, there's no risk of spilling over or overwriting another page area's JS function if you both declare function with same name - but it also means it's much harder to get into element's internals.\nYou'll have to read up about how Selenium deals with Shadow DOM. Some companies claim they have working Lightning UI automated tests\/ Heard good stuff about Provar, haven't used it myself.\nFor custom UI components SF developer has option to use \"light dom\", for standard UI you'll struggle a bit. If you're looking for some automation without fighting with Lighting Experience (especially that with 3 releases\/year SF sometimes changes the structure of generated html, breaking old tests) - you could consider switching over to classic UI for the test? It'll be more accessible for Selenium, won't be exactly same thing the user does - but server-side errors like required fields, validation rules should fire all the same.","Q_Score":0,"Tags":"python,html,selenium,salesforce,frames","A_Id":74675210,"CreationDate":"2022-12-04T10:18:00.000","Title":"Python Selenium with Salesforce - Cannot Seem to Access Certain Form Elements","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am working on an application similar to a quiz model. My requirement is,\n\nThe web socket server should be able to send time updates - say each question has 30 sec time, i need a scheduled job which will send 30,29,28.....0 to the web socket client.\nOnce the time is up, i need one more functionality to send the next question to the web socket client(i.e., it should be 30 sec interval job).\n\nNote: I am usign AsyncWebSocketConsumer as my base consumer.\nCan anyone help me with good design on how i can implement this functionality and some code snippets\/tutorials in doing so?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":35,"Q_Id":74689713,"Users Score":0,"Answer":"I think the count should be done on the quizz page, and one finished the answer is sent to the server.\nOn the server you can also control that the question has been answer in 30s.","Q_Score":0,"Tags":"python,websocket,redis,django-channels","A_Id":74689775,"CreationDate":"2022-12-05T14:25:00.000","Title":"Django-Channels: Schedule jobs","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I gonna made a few forms on one page and post it with ajax. So i got question - do i need use django forms for it, or just views?\nIn my opinion django forms can validate html form by themself, but i actually don't know it. So what is the better decision in that case","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":25,"Q_Id":74697076,"Users Score":2,"Answer":"No, you don't have to use Django forms when using Ajax. You can use the views to handle the requests and validate the data, without using forms. However, using Django forms can help you to quickly validate the data and also keep your code organized and easier to maintain. In the end, it depends on your choice and the needs of your application.","Q_Score":0,"Tags":"python,django,ajax,forms,web","A_Id":74697147,"CreationDate":"2022-12-06T03:51:00.000","Title":"Does i need to use django.forms when i using ajax","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I run training of different NN models on the server. I can view models status, metrics via GUI tools like Tensorboard, Weights & Biases. But I need to make the REST API to monitoring the models via my personal frontend page. What's optimal solutions for such tasks? Of course I can write metrics to disk or data base, and read this in another thread, but it's looks a little ugly. I don't understand how to organize exchange between the model's trainer and backend.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":27,"Q_Id":74722522,"Users Score":1,"Answer":"You can simply start Tensorboard in broadcast mode. This will allow you to open it on other systems within the network. Don't try to write REST api for this task on your own.\nUpdate:\nBased on your comment, you will need to do two things:\n\nWrite a REST api with POST method that takes appropriate values you need to save. Invoking this with values, will save them to some database or file system outside tensorflow.\n\nWrite a custom callback class in case of tensorflow by inheriting tf.keras.callbacks.Callback to invoke the POST method written in previous step either at training, testing or prediction time. In case of pytorch since it is define by run philosophy, you can write your custom callbacks like normal class and use them in which ever phase you want to invoke the POST methods.","Q_Score":0,"Tags":"python,tensorflow,pytorch,devops,fastapi","A_Id":74724957,"CreationDate":"2022-12-07T20:25:00.000","Title":"How to check the model fitting status via Rest API? Tensorflow, Pytorch, etc","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a problem. when I create a connection with python to rabbitmq. When it takes the data from the rabbit. This data goes into the model. If model takes about 2-3 minutes, I can print the result of the model to rabbit. But when it takes about 5 minutes, the connection dies and my code gives an error. How can solve this problem ?\nI've tried to recreate the connection, but it didn't work.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":27,"Q_Id":74723283,"Users Score":0,"Answer":"increase the hearbeat value eg:  pika.connectionParamters(host=..,port=...,heartbeat=3600)","Q_Score":0,"Tags":"python,rabbitmq","A_Id":74940219,"CreationDate":"2022-12-07T22:01:00.000","Title":"Rabb\u0131tMq connection reset by peer","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"i have an issue with the design of my server-client opcua framework.\nThe thing is, from client i want to send a event notification to opcuaServer. Is this possible?\nUntil now i can send event triggers from server, but i dont know if client is capable of that.\nWhat gives?\nAn explanation of code related to the question or a simple answer.","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":49,"Q_Id":74737401,"Users Score":0,"Answer":"In my point of view you should use the method call. Creating a variable and internally subscribing to it is more of a work around.","Q_Score":2,"Tags":"python,events,opc-ua,opc","A_Id":74847977,"CreationDate":"2022-12-08T23:24:00.000","Title":"Can opcua client trigger events to server in Python?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"i have an issue with the design of my server-client opcua framework.\nThe thing is, from client i want to send a event notification to opcuaServer. Is this possible?\nUntil now i can send event triggers from server, but i dont know if client is capable of that.\nWhat gives?\nAn explanation of code related to the question or a simple answer.","AnswerCount":2,"Available Count":2,"Score":1.2,"is_accepted":true,"ViewCount":49,"Q_Id":74737401,"Users Score":3,"Answer":"No.\nThink about the problem differently. Maybe the solution is for your client to call a Method on the server, or to write a Value to a specific VariableNode that the server will react to.","Q_Score":2,"Tags":"python,events,opc-ua,opc","A_Id":74737633,"CreationDate":"2022-12-08T23:24:00.000","Title":"Can opcua client trigger events to server in Python?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"admin SDK. I want to know how to set the Channel Id on the Notification? I saw in Legacy Http Server Protocol has a parameter \"android_channel_id\", but in the SDK, Notification, or Android_Config, I don't see the way to set the channel id. Please help","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":31,"Q_Id":74738190,"Users Score":0,"Answer":"I found that I have to use AndroidConfig and AndroidNotification Objects to construct the message. On the Android Notification Object that is an attribute channel_id to set the channel info.","Q_Score":0,"Tags":"python,firebase-admin","A_Id":74786860,"CreationDate":"2022-12-09T01:58:00.000","Title":"Firebase-admin Python SDK Notification with Channel ID","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm using the BeautifulSoup module in Python 3.10 to get HTML data off a web page.\nThe way this web page is structured, there's a bunch of <h1> tags which section the web page. Some of these will look like <h1 class=\"title\"><img attributes\/> Text<\/h1>, and some will lack the img element but are otherwise identical.\nSuppose I start with a string called name and a BeautifulSoup object called soup. This BeautifulSoup object contains several <h1> tags as described above, each of which is followed by more HTML code. Suppose further that no two <h1> elements contain identical text.\nI'd like to compile a function which does the following:\n\nSearches the BeautifulSoup object for a <h1> element which contains a string that, excluding the <img> content, exactly matches the input string name.\nIf it's not the last <h1> tag in the BeautifulSoup object, return everything from that <h1> tag until the next <h1> tag. The latter tag shouldn't be included in the return, but the former tag can be optionally included or excluded. If it is the last <h1> tag, return everything from that tag to the end of the object.\n\nI'm only just learning BeautifulSoup. I know how to use .find() or .find_all() to track down which <h1> tag matches, but I don't know how to return all the following blocks as well.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":22,"Q_Id":74745976,"Users Score":0,"Answer":"Actually, when you crawl data using BeautifulSoup. All HTML tags will be written down. Just use a loop to find that checks for your image's existence or not.","Q_Score":0,"Tags":"python,beautifulsoup","A_Id":74746022,"CreationDate":"2022-12-09T16:45:00.000","Title":"BeautifulSoup in Python: Get series of tags where first exactly matches input","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Recently, I was working on my HTML project and I wanted to add some functionality and I had already written code for that in Python. But, I faced a problem I couldn't add that Python code to my HTML code.\nSo, I wanted to know that how I can add my Python code to my HTML code.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":35,"Q_Id":74754499,"Users Score":0,"Answer":"you can use PyScript it is a new framework and It uses python in HTML code to develop apps.","Q_Score":0,"Tags":"python,html,python-3.x","A_Id":74754544,"CreationDate":"2022-12-10T16:05:00.000","Title":"How do I add Python in HTML?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"In several Lambda functions and Elastic Beanstalk instances for a project, they all use the same helper functions and constants.\nI am trying to follow the DRY method and not hard code these parameters into each Lambda\/EB application, but instead have the modules that contain them just import into each Lambda\/EB application.\nI was ideally hoping to\n\nput all these modules in a separate GitHub repo\ncreate a codepipeline to an S3 bucket\nimport them into EB\/Lambdas wherever needed\n\nI have the first 2 steps done, but can't figure out how to import the modules from S3.\nDoes anyone have any suggestions on how to do this?","AnswerCount":4,"Available Count":1,"Score":0.0996679946,"is_accepted":false,"ViewCount":159,"Q_Id":74755148,"Users Score":2,"Answer":"The best way to track changes in code is using a repo but if you need to use an s3 as a repo you can consider enabling versioning in the s3 bucket\/repo and define some s3 event source to trigger your pipeline.\nFor using those dependencies I think it's best to consider using layer for lambda functions or shared EFS volumes in instances for Beanstalk if these dependencies are very important in size.","Q_Score":2,"Tags":"python,amazon-web-services,amazon-s3,aws-lambda,amazon-elastic-beanstalk","A_Id":74818522,"CreationDate":"2022-12-10T17:32:00.000","Title":"How to share modules across multiple AWS Lambda and Elastic Beanstalk applications?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to display PO based on allowed branch in odoo. So if you log in as user Ana with allowed branch = Singapore, then the PO that appear are only PO with the Singapore branch. Maybe someone knows and can give advice?\nThanks\nBest Regards","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":49,"Q_Id":74780743,"Users Score":0,"Answer":"you can use the domain field on a model to filter records based on certain criteria. This can be useful for restricting which records are visible to a user based on their allowed.","Q_Score":0,"Tags":"odoo,python-3.8,enterprise,erp,odoo-14","A_Id":74780762,"CreationDate":"2022-12-13T06:24:00.000","Title":"How to domain\/filter PO based on user allowed branch in odoo","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have configured a DMS migration instance that replicates data from Mysql into a AWS Kinesis stream, but I noticed that when I process the kinesis records I pick up duplicate records.This does not happen for every record.\nHow do I prevent these duplicate records from being pushed to the kinesis data stream or the S3 bucket?\nI'm using a lambda function to process the records, so I thought of adding logic to de-duplicate the data, but I'm not sure how to without persisting the data somewhere. I need to process the data in real-time so persisting the data would not be idle.\nRegards\nPragesan","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":70,"Q_Id":74800371,"Users Score":0,"Answer":"I added a global counter variable that stores the pk of each record,so each invocation checks the previous pk value,and if it is different I insert the value.","Q_Score":0,"Tags":"python,amazon-web-services,aws-lambda,amazon-kinesis,dms","A_Id":74802789,"CreationDate":"2022-12-14T15:13:00.000","Title":"AWS DMS inserts duplicate records into kinesis and S3","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm running two django projects in IIS with wfastcgi enabled.  The first django project is running without an issue but the second project displays a blank page (code 200) returned.\nSecond Project Info:\nA virtual folder, within it's own application pool in IIS, is created to host the second project.  The second project was created in an python environment folder.  The second project runs from django using python manage.py runserver 0.0.0.0:8080, but displays a blank page when browsing to the virtual folder page.\nThe root folder was granted with \"everyone\" full control access to all sub-folders\nfor the second project, wfastcgi application and handler is pointing to the virtual environment python and wfastcgi file correctly.\nCan you have two wfastcgi applications and handlers \"Second Python FastCGI\"\nC:\\project_folder\\project_env\\Scripts\\python.exe|C:\\project_folder\\project_env\\lib\\site-packages\\wfastcgi.py\"\nI wanted them separate so that two developers don't interfere with each others work, but they need to run within the same server and port.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":34,"Q_Id":74825616,"Users Score":0,"Answer":"I resolved the problem by editing the web.config file and removing the static handler from it.  The static handler was being used instead of the FastCgiModule handler.  The static handler should be moved below the FastCgiModule.","Q_Score":0,"Tags":"python,django,iis,wfastcgi","A_Id":74826128,"CreationDate":"2022-12-16T14:11:00.000","Title":"Multiple Django Projects using IIS but Getting Blank Page on Second Site","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"This is the error I am receiving:\nRuntimeError: The 'apxs' command appears not to be installed or is not executable. Please check the list of prerequisites in the documentation for this package and install any missing Apache httpd server packages.\nHow can I get around this? I have received this while trying to install different packages. I am working on a Django project. I have already made sure the apache2-dev package is installed. I am developing on linux.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":171,"Q_Id":74829709,"Users Score":0,"Answer":"You can add some dependencies to the apache2.\nsudo apt-get -y install apache2 apache2-utils apache2-dev\nThis helped me go around the missing apxs.","Q_Score":1,"Tags":"python,django","A_Id":76635507,"CreationDate":"2022-12-16T20:59:00.000","Title":"Receiving Error: 'apxs' command appears not to be installed","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I want to create a Student Register and Login Api without using serializer in django Rest Framework.\nSo I want to know how I make CRUD operation for those api using ApiView\nAny one please solve this","AnswerCount":3,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":116,"Q_Id":74834215,"Users Score":0,"Answer":"If you are using DRF then you must need to create the serializers. But you can create the API without using DRF and serialzers.","Q_Score":0,"Tags":"python-3.x,django,django-models,django-rest-framework,django-views","A_Id":74841673,"CreationDate":"2022-12-17T12:53:00.000","Title":"How to develop a rest api without using serializer in Django Rest Framework?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to create a Student Register and Login Api without using serializer in django Rest Framework.\nSo I want to know how I make CRUD operation for those api using ApiView\nAny one please solve this","AnswerCount":3,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":116,"Q_Id":74834215,"Users Score":0,"Answer":"I don't think you can, or even should but first, you need to understand what a serializer actually does:\n\nSerializers allow complex data such as querysets and model instances to be converted to native Python datatypes that can then be easily rendered into JSON, XML, or other content types. Serializers also provide deserialization, allowing parsed data to be converted back into complex types, after first validating the incoming data\n\nSo don't be scared by serializers. Just take your time and learn how to use them using the many tutorials available online.","Q_Score":0,"Tags":"python-3.x,django,django-models,django-rest-framework,django-views","A_Id":74841478,"CreationDate":"2022-12-17T12:53:00.000","Title":"How to develop a rest api without using serializer in Django Rest Framework?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a Django application where all the secret information (secret key and keys for encryption) are in the .env file as environment variables - I'm using the python-dotenv library. After starting the application, I removed the .env file from the server files and the application continues to work as it should. Can deleting this file cause any problems? Is there any other (or better) way to secure these secrets in a Django application?\nIf it's relevant, I use pythonanywhere.com","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":113,"Q_Id":74838633,"Users Score":1,"Answer":"You shouldn't need .env file if you instead set up Environment variables while initialising the server machine.\nMany Cloud Service Providers let you do that. If you're setting up a docker container in Google App run, you should be able to setup environment variables or when setting up virtual machine with predetermined environment variables.\nThis should eliminate any requirement for having .env file.","Q_Score":4,"Tags":"python,django","A_Id":74839524,"CreationDate":"2022-12-18T01:43:00.000","Title":"Can I delete .env file from server?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I decided to try and build a simple web browser with python, but even after running pip install PyQt5 and PyQtWebEngine I still get the error ModuleNotFoundError: No module named 'PyQt5.QtWebEngineWidgets'.\nAnd before you redirect me to the many other posts on this topic I have tried most of the solutions not they do not work. (I do have the latest version of pip)","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":64,"Q_Id":74857272,"Users Score":1,"Answer":"Fixed it nvm (I installed python 3.11)","Q_Score":0,"Tags":"python,pyqt5","A_Id":74857391,"CreationDate":"2022-12-20T00:02:00.000","Title":"ModuleNotFoundError: No module named 'PyQt5.QtWebEngineWidgets'","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to login to the admin portal, however I am getting the below error. Please help I have been searching for solution but nothing\nException Type: ImportError at \/admin\/login\/\nException Value: cannot import name 'urlquote' from 'django.utils.http' (C:_project\\my-events\\env\\lib\\site-packages\\django\\utils\\http.py)","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":288,"Q_Id":74875604,"Users Score":0,"Answer":"Features removed in 4.0\u00b6\nThese features have reached the end of their deprecation cycle and are removed in Django 4.0.\nSee Features deprecated in 3.0 for details on these changes, including how to remove usage of these features.\ndjango.utils.http.urlquote(), urlquote_plus(), urlunquote(), and urlunquote_plus() are removed.","Q_Score":0,"Tags":"python,django,django-rest-framework","A_Id":74875669,"CreationDate":"2022-12-21T11:47:00.000","Title":"cannot import name 'urlquote' from 'django.utils.http'","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a RHEL 7 Linux server using Apache 2.4 as the httpd daemon. One of the pages served by Apache is a simple https form that is generated using Python 3.11. Currently, the form is submitting and being processed properly, but we have no way to track where the form was submitted from.\nIdeally, there would be a field for users to enter their user name, but we have no way of validating if the user name is valid or not.\nI would like to add a hidden field to the form that would contain one of the following:\n\nUser name used to log into the clients computer from where the form was submitted.\nComputer name of the clients computer from where the form was submitted.\nIP address of the clients computer from where the from was submitted.\n\nI do not care if this data is discovered by Python while the page is being generated, or by a client side script embedded in the generated web page.\nThe majority of users will be using Windows 10 and Chrome or Edge as their browser, but there will be Apple and Linux users and other browsers as well.\nIs this possible? If so, how?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":15,"Q_Id":74880709,"Users Score":0,"Answer":"Would you like every website to have access to your local user- or computer-name, or other local information available to your browser? While there is an aweful lot of information available to webapps, this privacy invasion is not.\nThe server will have a record about the sending IP address though, naturally - even without it being part of a form.\nAs to the \"how\": The Python script that processes the submitted form does have access to the request parameters, and with it typically the remote IP address. What you do with it (e.g. save it) is yours. You'll obviously also find the remote IP address in the Apache logs - but there it's disassociated with the actual form submission.","Q_Score":0,"Tags":"python,apache,authentication,https,rhel","A_Id":74887410,"CreationDate":"2022-12-21T19:06:00.000","Title":"How to identify the user or machine making an HTTP request to an Apache web server on RHEL 7 using server side Python or client side script?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I have three python files (two that scrape data and 1 with my functions) I'm using in my app. Each file is about 150 lines, I don't want to include this code in views.py to keep my views as clean and readable as possible. Is there a best practice to keep things tidy? A separate folder inside the app with all external non-django .py files (similar to 'Templates' for .html or 'Static' for .css)? Any suggestions are appreciated.\nA Google search didn't yield any results.","AnswerCount":3,"Available Count":1,"Score":0.0665680765,"is_accepted":false,"ViewCount":48,"Q_Id":74901599,"Users Score":1,"Answer":"I personally like keeping my views file clean as well i.e. they only contain views and nothing else.\nAs for the other files it depends on personal taste, in your case I recommend creating a directory called scrapers or web_scrapers for storing the scraping files. You should name them to the specific purpose that they serve like football_scores_scraper.py or stackoverflow_scrapper.py. And for the file that contains utility functions keep it inside the same directory as views.py but name it appropriately depending on its usage like tax_utils.py or if it contains different functionality just name it as utils.py.","Q_Score":1,"Tags":"python,django","A_Id":74908289,"CreationDate":"2022-12-23T15:57:00.000","Title":"Django - Where do you store non-django .py files in your app?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"How do I solve the following problem when I run the code?\nservice = service(executable_path=ChromeDriverManager().install())\nTypeError: 'module' object is not callable","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":66,"Q_Id":74917517,"Users Score":0,"Answer":"I think there are so many problems in your code:-\n\nYou import service module like this:\nfrom selenium import webdriver\nimport Service\nimport ChromeDriverManager\n\n\nbut actually you have to import like this\nfrom selenium import webdriver\nfrom selenium.webdriver.chrome.service import Service\nfrom webdriver_manager.chrome import ChromeDriverManager\n\nUpdate your modules to latest version\n\nDont use modules name as variables","Q_Score":0,"Tags":"python,selenium,selenium-chromedriver","A_Id":74917609,"CreationDate":"2022-12-26T05:34:00.000","Title":"TypeError: 'module' object is not callable","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"For some reason I can do almost everything on Django but access to model.objects, like, it doesn't even appear, I cannot delete nor find anything without that (or I do not know how), I'm learning Django from a basic course.\nI use Python 3.11, Django 4.1.4, on Pycharm 2022.3.\nPD:\nIf you know of another way of doing the Create, Read, Update and Delete of objects I would appreciate that.\nSorry for the English.\nI tried searching on the web about this problem but since I'm a noob on Django and trainee on Python most things are like white noise to me, like, I don't understand.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":40,"Q_Id":74924713,"Users Score":0,"Answer":"It does work, it's just that Pycharm does not detect the .objects functions, I do not know why though.","Q_Score":0,"Tags":"python,python-3.x,django,windows,django-models","A_Id":74943410,"CreationDate":"2022-12-26T23:35:00.000","Title":"I don't have models.Model.objects","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have been looking to communicate two or multiple microservices in django and need to make them communicate with each. I've reasearched about it and didnt get proper info about it. what i understood is each microservices application completely dont depend on one another including the database. Now how to communicate each microservices with one another. there are 2 methods **synchronous and asynchronous ** method.\ni dont want to use synchronous. how to communicate the endpoints of api in asynchronous way? i found some message brokers like rabbitMQ, kafka, gRPc... Which is the best brokers. and how to communicate using those service? i didnt get any proper guidance. I'm willing to learn , can anybody please explain with some example ? It will be huge boost for my work.","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":212,"Q_Id":74926266,"Users Score":0,"Answer":"There are a few different ways to communicate between microservices in a Django Rest Framework (DRF) application. Here are a few options:\nUse HTTP requests: One option is to use HTTP requests to send data between microservices. This can be done using the requests library in Python or using JavaScript's fetch API in the frontend.\nUse a message queue: Another option is to use a message queue, such as RabbitMQ or Kafka, to send messages between microservices. This can be useful if you need to decouple the services and handle asynchronous communication.\nUse a database: You can also use a database, such as PostgreSQL or MongoDB, to store data that is shared between microservices. This can be done using Django's ORM or a database driver in your preferred language.\nWhich method you choose will depend on your specific requirements and the nature of the communication between your microservices.","Q_Score":0,"Tags":"python,django,rabbitmq,microservices,rabbitmq-exchange","A_Id":74926309,"CreationDate":"2022-12-27T06:21:00.000","Title":"How to communicate two or more microservices in django rest framework?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I have a use case where I need to read tables from MS access file (.mdb or .accdb) which is placed on AWS s3 bucket and converting it into csv or excel file in AWS lambda function and again upload the converted file to s3 bucket.\nI got the ways through pyodbc library but it's not working on AWS cloud especially when the file is placed on s3 bucket.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":68,"Q_Id":74926667,"Users Score":0,"Answer":"That's because the S3 bucket isn't an SMB file share.\nDownload the database file to a SMB file server - a server running Windows Server or Linux with Samba - and access the file at that location.","Q_Score":0,"Tags":"python,ms-access,amazon-s3,aws-lambda,aws-glue","A_Id":74926703,"CreationDate":"2022-12-27T07:26:00.000","Title":"Reading .mdb or .accdb file from s3 bucket in AWS lambda function and converting it into excel or csv using python","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Im building a Web Scapper, when testing on venv -> [SSL: CERTIFICATE_VERIFY_FAILED]\nBut, when I'm testing on ipython shell -> Perfectly good\nI wondering what the root problem is?\nThanks for your help!`from urllib.request import urlopen\nfrom bs4 import BeautifulSoup\nimport subprocess\nhtml = urlopen('http:\/\/www.pythonscraping.com\/pages\/page3.html')\nbs = BeautifulSoup(html, 'lxml')\nhtml_tags = bs.prettify()`","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":48,"Q_Id":74929059,"Users Score":0,"Answer":"I just understand why it could leads into this problems!\nIf your guys using an virtual env (such as: create a by using python3 -m venv .venv -> it will absolutely isolate (easy to understand right?)\nBut once it isolate from the current machine -> the ip address still not change!\nHowever the dependencies with others are cut down already -> This could lead to the about situation!\nbut when your guys create a venv (by conda) -> it setting more detailed -> so it might by not crash into the problem.\nIf somethings wrong, im happy to get the replies for this one!\nPS: Python Automation Cookbook - packs helped me to understand this problem deeply! and ChatGPT: network dependencies and lib in venv.","Q_Score":0,"Tags":"python,ssl-certificate,urllib,urlopen","A_Id":75230551,"CreationDate":"2022-12-27T12:06:00.000","Title":"urllib.requiest.urlopen error: certificate verify failed on python Virtual Environment","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am building an e-learning platform using Django and as part of the platform one can buy online courses.\nFor each course I have a manytomany field of users and every time a user purchases a course I add them to the field.\nIs this a good approach to give users access to the course? What would your approach be in this case?","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":19,"Q_Id":74930880,"Users Score":1,"Answer":"Yes, it's the way I would go for it.\nWith such solution you can extend your manytomany table with fields like expiration date (so the users buy temporary access to the course), something like scope (so limit the user to just a part of a course) and you can e.g. group courses into packets and allow users to buy all of them.","Q_Score":0,"Tags":"python,django","A_Id":74931138,"CreationDate":"2022-12-27T15:00:00.000","Title":"Best way to grant access to users after they purchase something","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I've tried to create an account on Heroku. I filled form click on CREATE AN ACCOUNT and got the following message:\nThere's a problem\nSomething went wrong. Try again later.\nSignup sequence: 94e2ea044221\nI've tried several days from different computers and using different browsers but without success.\nCan somebody give me a hand?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":273,"Q_Id":74933888,"Users Score":0,"Answer":"Try setting VPN to US and try signing up.\nElse, try to contact Heroku support team","Q_Score":0,"Tags":"python,django,heroku","A_Id":74933923,"CreationDate":"2022-12-27T20:32:00.000","Title":"Cannot create an account on Heroku","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am using a python script that login to AWS account with an IAM user and MFA (multi-factor authentication) enabled. The script runs continuously and does some operations (IoT, fetching data from devices etc etc).\nAs mentioned, the account needs an MFA code while starting the script, and it does perfectly. But the problem is script fails after 36 hours because the token expires.\nCan we increase the session token expiration time or automate this task not to ask MFA code again and again?","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":56,"Q_Id":74968390,"Users Score":0,"Answer":"Unfortunately not, the value can range from 900 seconds (15 minutes) to 129600 seconds (36 hours). If you are using root user credentials, then the range is from 900 seconds (15 minutes) to 3600 seconds (1 hour).","Q_Score":0,"Tags":"python-3.x,amazon-ec2,boto3,multi-factor-authentication","A_Id":74968968,"CreationDate":"2022-12-31T08:26:00.000","Title":"Increase aws session token expiration time","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"i tryed to fix this problem for hours now but i can't solve it. I did read through some similiar questions but they coudnt help me.\nI want to use the Selectolax HTMLParser Module inside my AWS Lambda Function.\nI Import the module like this from an Layer like this:\nfrom selectolax.parser import HTMLParser\nI always get the error:\n\"errorMessage\": \"cannot import name 'parser' from partially initialized module 'selectolax' (most likely due to a circular import)\nThe Problem lays not in the Name of My Function\/File, i called it \"Test123\". As Selectolax is a public Module, i was afraid to change something after installing it with pip.\nI reinstalled the package at least 3 times and uploaded it again as a layer.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":33,"Q_Id":74975839,"Users Score":0,"Answer":"Reinstalling the Package with an older version(0.3.11) did solve the problem.","Q_Score":0,"Tags":"python,lambda,module,html-parsing","A_Id":74980226,"CreationDate":"2023-01-01T16:30:00.000","Title":"Lambda Selectolax Import partially initialized module 'selectolax'","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have an api (django app), lots of people use it, i want this api handle millions requests.\n\nHow can i make it distributed so this api can handle many requests.\nShould i make producer and consumer in one file?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":40,"Q_Id":74982240,"Users Score":0,"Answer":"You need an HTTP load balancer, not Kafka to scale incoming API requests.\nOnce a request is made, you can produce Kafka events, or try to do something with a consumer as long as you aren't blocking the HTTP response. File organization doesn't really matter, but yes, one producer instance per app, but multiple consumer threads can be started independently, as needed","Q_Score":0,"Tags":"python,django,apache-kafka","A_Id":74985196,"CreationDate":"2023-01-02T12:06:00.000","Title":"Django-kafka. Distributed requests to an endpoint to handle millions of requests","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I installed Python,and then Django.I checked that Django is installed with --version command.I installed VENV.\nNow I want to start a Project,but django-admin startproject my_site does't work.\nI'm working with VScode.\nWhat can I do?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":28,"Q_Id":74983204,"Users Score":0,"Answer":"this solution is for windows,so\nfirst you have to create your VENV ;\npython -m venv my_venv\nthen you have to activate it in my case windows;\nmy_venv\/Script\/activate\nand then after you activate the Virtual environment :\npip install django\nafter that you can run either:\ndjango-admin.exe startproject my_site\nor:\ndjango-admin startproject my_site\nin some case's it's :\ndjango-admin.py  startproject my_site\ni hope it's helped","Q_Score":0,"Tags":"python,python-3.x,django,python-3.10","A_Id":74983990,"CreationDate":"2023-01-02T13:48:00.000","Title":"Does't work django-admin startproject mfdw_site","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I deployed a model using Azure ML managed endpoint, but I found a bottleneck.\nI'm using Azure ML Managed Endpoint to host ML models for object prediction. Our endpoint receives a URL of a picture and is responsible for downloading and predicting the image.\nThe problem is the bottleneck: each image is downloaded one at a time (synchronously), which is very slow.\nIs there a way to download images async or to create multiple threads ? I expected a way to make if faster.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":42,"Q_Id":74986098,"Users Score":0,"Answer":"We recommend to use Azure Blob storage to host the images and then use blob storage SDK to fetch the images.","Q_Score":1,"Tags":"python,machine-learning,azure-machine-learning-service,azure-machine-learning-studio","A_Id":75105118,"CreationDate":"2023-01-02T19:00:00.000","Title":"How to use Async or Multithread on Azure Managed Endpoint","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":1,"Web Development":1},{"Question":"I would like to know if there is a way for FastAPI to receive a URL of a file as a parameter and save this file to disk? I know it is possible with the requests library using requests.get() method, but is it possible with FastAPI to receive the URL and save it directly?\nI tried using file: UploadFile = File(...), but then it doesn't download the file when the URL is sent.","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":55,"Q_Id":74986488,"Users Score":1,"Answer":"I don't believe so. I've come across this before and was unable to find a solution (and ended up using requests like you mentioned), but seeing this I wanted to check again more thoroughly.\nReviewing the uvicorn and fastapi  repositories by searching the code itself, I see no functions\/code that reference requests or urllib (they do use urllib.parse\/quote, etc though) that would be 2 likely suspects to build requests. They do use httpx.AsyncClient, but only in tests. I would expect to see some use of these libraries in the main uvicorn\/fastapi libraries if they had code to make external requests.\nSeeing the above, I actually think I will change my code to use httpx.AsyncClient anyways since it is already a dependency.","Q_Score":1,"Tags":"python,download,fastapi,starlette","A_Id":74986708,"CreationDate":"2023-01-02T19:50:00.000","Title":"How to receive URL File as parameter and save it to disk using FastAPI?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"What is the difference between cleaned_data and is_valid functions in django?, I just came across forms and immediately i got stuck there\ncan anyone play with some simple examples. I've read many documentation but i cant able to differentiate it.","AnswerCount":4,"Available Count":3,"Score":0.0,"is_accepted":false,"ViewCount":60,"Q_Id":74989889,"Users Score":0,"Answer":"Cleaned data: Clean data are valid, accurate, complete, consistent, unique, and uniform. (Dirty data include inconsistencies and errors.)\nCleaned data valid in django: It uses uses a clean and easy approach to validate data. The is_valid() method is used to perform validation for each field of the form, it is defined in Django Form class. It returns True if data is valid and place all data into a cleaned_data attribute.","Q_Score":1,"Tags":"python,django,django-models,django-forms,cleaned-data","A_Id":74991213,"CreationDate":"2023-01-03T06:51:00.000","Title":"What's the difference between Cleaned data and is valid in django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"What is the difference between cleaned_data and is_valid functions in django?, I just came across forms and immediately i got stuck there\ncan anyone play with some simple examples. I've read many documentation but i cant able to differentiate it.","AnswerCount":4,"Available Count":3,"Score":0.0996679946,"is_accepted":false,"ViewCount":60,"Q_Id":74989889,"Users Score":2,"Answer":"The is_valid() method is used to perform validation for each field of the form, it is defined in Django Form class. It returns True if data is valid and place all data into a cleaned_data attribute.\nAny data the user submits through a form will be passed to the server as strings. It doesn't matter which type of form field was used to create the form.\nEventually, the browser would will everything as strings. When Django cleans the data it automatically converts data to the appropriate type.\nFor example IntegerField data would be converted to an integer\nIn Django, this cleaned and validated data is commonly known as cleaned data.\nWe can access cleaned data via cleaned_data dictionary:\nname = form.cleaned_data['name']","Q_Score":1,"Tags":"python,django,django-models,django-forms,cleaned-data","A_Id":74990208,"CreationDate":"2023-01-03T06:51:00.000","Title":"What's the difference between Cleaned data and is valid in django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"What is the difference between cleaned_data and is_valid functions in django?, I just came across forms and immediately i got stuck there\ncan anyone play with some simple examples. I've read many documentation but i cant able to differentiate it.","AnswerCount":4,"Available Count":3,"Score":0.0996679946,"is_accepted":false,"ViewCount":60,"Q_Id":74989889,"Users Score":2,"Answer":"is_valid() method is used to perform validation for each field of the form.\n\ncleaned_data is where all validated fields are stored.","Q_Score":1,"Tags":"python,django,django-models,django-forms,cleaned-data","A_Id":74990113,"CreationDate":"2023-01-03T06:51:00.000","Title":"What's the difference between Cleaned data and is valid in django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I created an API, that take xlsx as input file for post method and give me edited xlsx file.\nProblem is:- File I got from link and I have to download the xlsx file every time and put in postman.\nWhat I want:- directly put link in postman for input file\nNote:- Everytime link contains only one xlsx file\nI Looked for the solutions in documentations , but I can't find a thing, of How to put link for inpt file.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":41,"Q_Id":75001534,"Users Score":0,"Answer":"You can pass the link with a header or just do one thing create an environment variable in postman itself and try to create that variable updated after every hut of the API by getting a response from the other API.","Q_Score":0,"Tags":"python,django,postman","A_Id":75015177,"CreationDate":"2023-01-04T06:10:00.000","Title":"How to upload a link of file in postman instead of downloading file in Django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am writing a query in which I want to Sum amount using annotate and Sum decimal field in a foreign key relationship.\nThe field is summed correctly but it returns the Sum field in integer instead of decimal. In the database the field is in decimal format.\nThe query is like:\n***models.objects.filter(SourceDeletedFlat=False).annotate(TotalAmount=Sum(\"RequestOrderList__PurchaseOrderAmount\")).all()\nI do not want to use aggregate because I don't need overall column sum.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":15,"Q_Id":75020025,"Users Score":0,"Answer":"Can you try this\n\n**models.objects.filter(SourceDeletedFlat=False).annotate(TotalAmount=Sum(\"RequestOrderList__PurchaseOrderAmount\", output_field=DecimalField())).all()","Q_Score":0,"Tags":"django,django-models,django-rest-framework,python-3.7","A_Id":75020795,"CreationDate":"2023-01-05T14:32:00.000","Title":"Sum and Annotate does not returns a decimal field Sum as a decimal","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to open files from webpage. For example when we try to download a torrent file it redirects us to utorrent app and it continues it work. I also want to open a local file somehow using OS software. Like a video file using pot player. Is there any possible solution for me ,like making a autorun in pc to run that . Anything it may be please help me.\ud83d\ude14\ud83d\ude14\nI searched and found a solution to open a software using protocol, but in this way I cannot open a file in that software.","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":44,"Q_Id":75031941,"Users Score":0,"Answer":"the link acts as a magnet so your torrent application is opened maybe delete torrent for sometime till you finish the project, i know how to open image in local files in html but it will only be visible to you, you can do audio and video files also using <source src=\"movie.mp4 and on next line `type=\"video\/mp4\">","Q_Score":0,"Tags":"javascript,python,html,protocols","A_Id":75032911,"CreationDate":"2023-01-06T14:03:00.000","Title":"Cannot open a local file from webpage","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I want to open files from webpage. For example when we try to download a torrent file it redirects us to utorrent app and it continues it work. I also want to open a local file somehow using OS software. Like a video file using pot player. Is there any possible solution for me ,like making a autorun in pc to run that . Anything it may be please help me.\ud83d\ude14\ud83d\ude14\nI searched and found a solution to open a software using protocol, but in this way I cannot open a file in that software.","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":44,"Q_Id":75031941,"Users Score":0,"Answer":"Opening a specific file in a specific software would usually depend on passing some URL parameters to the protocol-URL of the app (e.g., opening a file in VSCode would use a URL like vscode:\/\/\/Users\/me\/file.html, but this functionality would have to be explicitly handled by the app itself though, so the solution for each app would be different).\nOtherwise, if the app doesn't support opening a specific file itself through a URL, you'd have to use some scripting software (e.g. AppleScript if you're on macOS) to dynamically click\/open certain programs on a user's computer.","Q_Score":0,"Tags":"javascript,python,html,protocols","A_Id":75031988,"CreationDate":"2023-01-06T14:03:00.000","Title":"Cannot open a local file from webpage","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I'm using Apache JMeter to test a tiny Flask app. The app performs some sort of CPU-bound task.\nSurprisingly, running the Flask app with --without-threads gives noticeably better results than running with --with-threads. How could that be?\nSome of the Apache JMeter settings and the respective results are:\n\n\n\n\nNumber of Threads (users)\nLoop Count\nTime taken without threads (seconds)\nTime taken with threads (seconds)\n\n\n\n\n5\n1000\n14\n17\n\n\n10\n500\n14\n18\n\n\n5\n3000\n43\n51\n\n\n10\n1500\n43\n56\n\n\n\n\nI'd expect that, in the case of a purely CPU-bound task, the multi-threaded version should be at least as fast as the single-threaded one. Let me explain:\nIn terms of executing the actual CPU task, I would expect both versions to perform the same. However, in terms of how quickly the next thread can be served, I'd expect the multi-threaded version to have a slight edge, because the request has already been served by Flask and it's only stuck waiting for the CPU.\nIn the single-threaded version (i.e. --without-threads), only one request gets served at a time, while all the other requests are waiting to be served by Flask. In other words, there's a certain \"serving overhead\" that Flask introduces.\nIn an ideal world, Flask could serve a new request instantly. In other words, the overhead of Flask serving an HTTP request would be 0. In that case, I would expect the single-threaded and multi-threaded versions to be equally as fast, because it would make no difference whether the threads are waiting to be served by Flask or waiting to get access to the CPU.\nI'm guessing that my understanding is incorrect. Where am I wrong?","AnswerCount":2,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":53,"Q_Id":75033511,"Users Score":1,"Answer":"As @Thomas suggested, I ran some more tests using a production-ready server. My server of choice was gunicorn, because it's easy to set up with Python 3.9.\ngunicorn accepts two command-line arguments pertaining to this topic:\n\n--workers - \"The number of worker processes for handling requests.\" The default value is 1.\n--threads - \"The number of worker threads for handling requests.\" The default value is also 1.\n\nIncreasing --workers up to what my CPU can handle did improve performance. Increasing --threads didn't. Furthermore, running 8 workers with 1 thread gave better results than running 8 workers with 4 threads.\nSo, I tried simulating some I\/O by sleeping for half a second. Finally, increasing the number of threads did improve performance.","Q_Score":0,"Tags":"python,multithreading,flask,jmeter","A_Id":75055508,"CreationDate":"2023-01-06T16:24:00.000","Title":"Flask --without-threads gives better performance than --with-threads on CPU-bound tasks?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a pyautogui code that repeats a order to click on a webpage but sometimes that webpage freezes and does not load, how could i detect that.\n\nthe webpage in not on selenium and chrome has been opened by pyautogui too\n\nUpdate 1:\nI have just realised that the website will realise that i have been on the website for a long time so it will not load certain elements. This usually happens evry 20 minutes.","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":33,"Q_Id":75045356,"Users Score":1,"Answer":"I finally solved the problem by simply reloading the page every 20 minutes which solved the problem.","Q_Score":1,"Tags":"python,pyautogui","A_Id":75046354,"CreationDate":"2023-01-08T03:40:00.000","Title":"Pyautogui inactivity detection","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"We have a Django 4.0.4 site running. Since upgrading from Python 3.10->3.11 and Psycopg2 from 2.8.6->2.9.3\/5 and gunicorn 20.0.4->20.1.0 we've been getting random InterfaceError: cursor already closed errors on random parts of our codebase. Rarely the same line twice. Just kind of happens once every 5-10k runs. So it feels pretty rare, but does keep happening a few times every day. I've been assuming it's related to the ugprade, but it may be something else. I don't have a full grap on why the cursor would be disconnecting and where I should be looking to figure out the true issue.\nPsycopg version: 2.9.5 & 2.9.3\nPython version: 3.11\nPostgreSQL version: 12.11\nGunicorn\nThe site had been running for 1-2 years without this error. Now it happens a few times every day after a recent upgrade.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":33,"Q_Id":75064349,"Users Score":0,"Answer":"We are having the same 'heisenbug' in our system and are attempting to solve it (unsuccessfully so far) ...","Q_Score":0,"Tags":"django,gunicorn,psycopg2,python-3.11,postgres-12","A_Id":75160751,"CreationDate":"2023-01-10T00:42:00.000","Title":"InterfaceError: cursor already closed","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm going to create API with Django Rest Framework for an existing Django project. I would like to use models of existing app (product\/models.py) in 'API\/models.py'.\nWill that work smoothly as of using models across multiple apps using\nfrom product.models import item,...\nAfter importing I'll be creating serializers.py .\nCan anyone answer me whether this will work?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":36,"Q_Id":75072968,"Users Score":0,"Answer":"Yes, this works, we can import and use models of other apps in this way.","Q_Score":0,"Tags":"python,django,django-models,django-rest-framework,active-model-serializers","A_Id":75080646,"CreationDate":"2023-01-10T16:24:00.000","Title":"Using models between an App and API app in Django Rest framework","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I get an error of no such file or directory while am deploying a streamlit app to streamlit cloud share, what could be the problem, i have all files in the same directory and as a standalone the app works perfectly the error comes only when am deploying the app, i need help\nLoaded_model = pickle.load(open(filepath here\/savfile)","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":27,"Q_Id":75073954,"Users Score":0,"Answer":"The files in a Streamlit app are stored in a folder called app \u2013 as a result, you'll usually need to adjust the file paths when you're deploying an app that you were previously running locally. I'd recommend doing os.getcwd() to return the file path and confirm that your file paths are correct.","Q_Score":0,"Tags":"python,file,machine-learning,streamlit,deploying","A_Id":75076720,"CreationDate":"2023-01-10T17:49:00.000","Title":"Open() function while deploying streamlit app","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to fill a PDF with Arabic and English. English is fine but Arabic is not visible after writing. It's showing on click.\nI am translating the English into Arabic text using Google API.\nI have also tried appearance functionality, fillpdf, PyPDF2 and pdfrw libraries.\nNo luck.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":35,"Q_Id":75079430,"Users Score":0,"Answer":"The issue was resolved after adding the proper font for Arabic text. The Ubuntu Doc viewer was not showing the text but in Adobe reader its just perfect.","Q_Score":0,"Tags":"python,pypdf","A_Id":75115400,"CreationDate":"2023-01-11T07:11:00.000","Title":"PyPDF2 fill Arabic is not visible while English is fine","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I tried a 3D project with ursina engine.\nI put a login part for the first page. Inside it, there is an email field with InputField ursina. But @ character cannot be entered. If anybody has an idea about it? Thanks.\nI just put the default value, which is written @, in the input field. But I want the user to enter their email just by typing @ character.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":50,"Q_Id":75081154,"Users Score":0,"Answer":"This is a bug, but have been fixed now. Update ursina with pip install https:\/\/github.com\/pokepetter\/ursina\/archive\/master.zip --upgrade and it should work.","Q_Score":0,"Tags":"python,input-field,ursina","A_Id":75084459,"CreationDate":"2023-01-11T09:54:00.000","Title":"Ursina inputfield @ character cannot be typed","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have created a custom module which I am trying to install but it shows me cancel installation button after I try to install it.\nThis issue is not seen in any other custom modules or other modules. But installation is not working for my module.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":24,"Q_Id":75116582,"Users Score":1,"Answer":"\"Cancel Installation\" button could be visible on these situations.\n\nAnother module is being installed.\nWhenever the server restarts.\n\nAccording to your query i guess that the cause of your issue might be 'Circular Dependency'.\nPlease re-check your 'depends' : [] inside __manifest__.py","Q_Score":0,"Tags":"python-3.x,odoo,odoo-15","A_Id":75116743,"CreationDate":"2023-01-14T08:05:00.000","Title":"Cancel installation is shown after installing my module in Odoo","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am trying to access a site that is asking to verify that it is human accessing the site the tool used by the site is cloudflare\nI use the user-agent to access the sites and so far I haven't had any problems, but with the current site I'm facing this barrier and there's a detail I configured a 100 second sleep to do the recognition manually and even so the site recognizes that webdrive is a robot.\noptions.add_argument('--user-agent=\"Mozilla\/5.0 (Windows Phone 10.0; Android 4.2.1; Microsoft; Lumia 640 XL LTE) AppleWebKit\/537.36 (KHTML, like Gecko) Chrome\/42.0.2311.135 Mobile Safari\/537.36 Edge\/12.10166\"')","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":48,"Q_Id":75121677,"Users Score":0,"Answer":"Maybe changing your public IP address would work. I had this issue before and struggled with headers and drivers.\nBut this varied from website to website though.","Q_Score":0,"Tags":"python,selenium","A_Id":75273894,"CreationDate":"2023-01-14T22:26:00.000","Title":"How not to be detected by browser using selenium?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to use my reminder bot on two servers at the same time, but the problem is whenever someone uses a command on one of the servers it will interact with the current loop.\nTo make things easier: my bot sends a msg for every X seconds to remind the user of the command to doing something. However when someone else uses it, it will overwrite the current loop function and result in not being able to stop but only the last loop.\nim using @tasks.loop(seconds=time) and task.start() and task.cancel() in order to control the loop.\nso i was wondering if there is a way to give a unique id to the loop so when i want to cancel it, it will search for that specific loop and cancel it (in case there are many reminders currently running).","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":24,"Q_Id":75122489,"Users Score":0,"Answer":"If your task is setup as a class - then you could theoretically just create a new instance of that class everytime you want to start a new reminder.\n\nThough, I would personally find a way to save state about data about the reminders elsewhere and use a single task. Either just using a dictionary, a file on the disk, or a DB of some kind.\nThe data saved for each reminder would need to be something like:\n\nguild ID: the server ID the reminder is for\nchannel ID: the channel ID we need to send the message to\nuser ID: the user that triggered the reminder\nactive: whether the reminder is active or not\nreminder(?): what we're reminding the user to do (if this is configurable)\n\nThat way:\n\nyour task can just loop every X minutes (however often you want the reminders to be triggered) and it will check if there's any active reminders (in your dict, file, db, etc). If there isn't it can just return until the next iteration\nusers in either server can start reminders. however you're starting them would need to add a 'reminder object' either to the dict, file, db, etc\nif there is active reminders, the task can loop over them and send the reminder to the relevant guild\/channel\/user as per the data\nin your on_message method, you can turn the reminder(s) on\/off as required\n\nHopefully that makes a bit of sense.","Q_Score":0,"Tags":"python,discord,discord.py","A_Id":75123406,"CreationDate":"2023-01-15T01:59:00.000","Title":"Using the same bot on different servers","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"Hi I have been trying to improve the db performance and had done some basic research regarding having a db partition and db sharding and also having 2 dbs one for write and other for read .\nHowever i found out that the db sharding is the best way out of all as the mapping provided by sharding is dynamic that is one of the requirement to put it bluntly i have provided the 2 cases below\nCase 1:- we need to get all the transaction of a user (which is huge)\nCase 2:- we need all the data for a particular time interval for all the user (which is again huge)\nBecause of the above scenerios I'm looking to implement db sharding\nNote:- I have already segregated some db into multiple databases already and they sit on different machines so i want it to be applied to all those multiple databases\nWhat I'm Looking for :\n\nAny link that could be helpful\nAny snippet code that could be helpful\n\nDjango==3.2.13\nMySql == 5.7","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":45,"Q_Id":75142891,"Users Score":0,"Answer":"Let me define some terms so that were are \"on the same page\":\nReplication or Clustering -- Multiple servers having identical datasets.  They are kept in sync by automatically transferring all writes from one server to the others.  One main use is for scaling reads; it allows many more clients to connect simultaneously.\nPARTITION -- This splits one table into several, based on date or something else.  This is done in a single instance of MySQL.  There are many myths about performance.  The main valid use is for purging old data in a huge dataset.\nSharding -- This involves splitting up a dataset across multiple servers.  A typical case is splitting by user_id (or some other column in the data).  The use case is to scale writes.  (On pure MySQL, the developer has to develop a lot of code to implement Sharding.  There are add-ons, especially in MariaDB, that help.)\nYour use case\nYour \"2 dbs one for write and other for read\" sounds like Replication with 2 servers.  It may not give you as much benefit as you hope for.\nYou are talking about SELECTs that return millions of rows.  None of the above inherently benefits such, even if you have several simultaneous connections doing such.\nPlease provide some numbers -- RAM size, setting of innodb_buffer_pool_size, and dataset size (in GB) of the big SELECTs.  With those numbers, I can discuss \"caching\" and I\/O and performance.  Performing multiple queries on the same dataset may benefit from caching on a single server.\nReplication and Sharding cannot share the caching; Partitioning has essentially no impact.  That is, I will try to dissuade you from embarking on a technique that won't help and could hurt.\nPlease further describe your task; maybe one of the techniques will help.\nP.S., Replication, Partitioning, and Sharding are mostly orthogonal.  That is any combination of them can be put together.  (But rarely is.)","Q_Score":1,"Tags":"mysql,python-3.x,django,sharding","A_Id":75163095,"CreationDate":"2023-01-17T07:00:00.000","Title":"Data Base Sharding In django using MySQL","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am building a DWH based on data I am collecting from an ERP API.\ncurrently, I am fetching the data from the API based on an incremental mechanism I built using python: The python script fetches all invoices whose last modified date is in the last 24 hours and inserts the data into a \"staging table\" (no changes are required during this step).\nThe next step is to insert all data from the staging area into the \"final tables\". The final tables include primary keys according to the ERP (for example invoice number).\nThere are no primary keys defined at the staging tables.\nFor now, I am putting aside the data manipulation and transformation.\nIn some cases, it's possible that a specific invoice is already in the \"final tables\", but then the user updates the invoice at the ERP system which causes the python script to fetch the data again from the API into the staging tables. In the case when I try to insert the invoice into the \"final table\" I will get a conflict due to the primary key restriction at the \"final tables\".\nAny idea of how to solve this?\nI am thinking to add a field that details the date and timestamp at which the record land at the staging table (\"insert date\") and then upsert the records if\ninsert date at the staging table > insert date at the final tables\nIs this best practice?\nAny other suggestions? maybe use a specific tool\/data solution?\nI prefer using python scripts since it is part of a wider project.\nThank you!","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":15,"Q_Id":75161670,"Users Score":0,"Answer":"Instead of a straight INSERT use an UPSERT pattern.  Either the MERGE statement if your database has it, or UPDATE the existing rows, followed by INSERTing the new ones.","Q_Score":0,"Tags":"python,etl,data-warehouse","A_Id":75196474,"CreationDate":"2023-01-18T15:36:00.000","Title":"DWH primary key conflict between staging tables and DWH tables","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"Refused to apply style from '' because its MIME type ('text\/html') is not a supported stylesheet MIME type, and strict MIME checking is enabled.\ni dont have any problem in vscode but when i hosted into pythonanywhere i cant even login into admin panel and the css from admin panel is not working","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":28,"Q_Id":75170423,"Users Score":1,"Answer":"You're probably getting that because it's a 404 page because your are not serving the file that you are trying to access. Search for \"static\" in the PythonAnywhere forums to find out how to configure static files.","Q_Score":0,"Tags":"python,django,admin","A_Id":75171290,"CreationDate":"2023-01-19T09:54:00.000","Title":"Refused to apply style from '' because its MIME type ('text\/html') pythonanywhere","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am using robot framework as the main test framework with selenium (+ python libraries) to test web ui. I'm having issues with continuous integration in Jenkins and need to change the screenshot name (that is being assigned automatically with index (selenium-screenshot-{index}.png) to more unique name for several test cases eq.:\n${TEST NAME}-screen-{index}.png\n\nI know how to access automatic varibales, but how do I set the automatic generation name to something other than selenium-screenshot on Suite Setup\/ beggining of the tests level?\n\nTried using Set Screenshot Directory to make it more unique for test suites but filenames are still the issue. Also using keyword to capture screenshot and setting the name there is not enough, as some keywords make screenshots on failure and they are still being named with selenium-screenshot convention.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":27,"Q_Id":75183706,"Users Score":2,"Answer":"Also using keyword to capture screenshot and setting the name there is not enough, as some keywords make screenshots on failure and they are still being named with selenium-screenshot convention.\n\nYou could create your own custom keyword that would handle naming and run on failure. You could use Register Keyword To Run On Failure in Suite Setup to specify which keyword to run on failure.","Q_Score":1,"Tags":"python,selenium,robotframework","A_Id":75184305,"CreationDate":"2023-01-20T11:57:00.000","Title":"Robot framework and selenium with python - screenshot automatic name change","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to alter my model but before doing so I want to delete all the records from my database, is there any dajngo ORM query for doing that cuz I don't want to do it manually.\nThanks.\nI tried to alter my model but when I migrated the changes an error occured.\nit was a long error but the last line was this.\nFile \"C:\\\\Users\\\\ALI SHANAWER.virtualenvs\\\\PiikFM-App-Backend-O_dKS6jY\\\\Lib\\\\site-packages\\\\MySQLdb\\\\connections.py\", line 254, in query \\_mysql.connection.query(self, query) django.db.utils.OperationalError: (3140, 'Invalid JSON text: \"Invalid value.\" at position 0 in value for column '#sql-45_2d01.qbo_class'.')\nany one knows what this is?","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":31,"Q_Id":75218078,"Users Score":0,"Answer":"You can simple delete db.sqlite ie, database file \nthen run python manage.py makemigration and then python manage.py migrate. \n\nI hope this is what you were looking for","Q_Score":0,"Tags":"python,django,django-models,orm","A_Id":75218297,"CreationDate":"2023-01-24T06:26:00.000","Title":"Is there any way I can delete all the rows from database before altering the model in django?","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to alter my model but before doing so I want to delete all the records from my database, is there any dajngo ORM query for doing that cuz I don't want to do it manually.\nThanks.\nI tried to alter my model but when I migrated the changes an error occured.\nit was a long error but the last line was this.\nFile \"C:\\\\Users\\\\ALI SHANAWER.virtualenvs\\\\PiikFM-App-Backend-O_dKS6jY\\\\Lib\\\\site-packages\\\\MySQLdb\\\\connections.py\", line 254, in query \\_mysql.connection.query(self, query) django.db.utils.OperationalError: (3140, 'Invalid JSON text: \"Invalid value.\" at position 0 in value for column '#sql-45_2d01.qbo_class'.')\nany one knows what this is?","AnswerCount":2,"Available Count":2,"Score":0.0,"is_accepted":false,"ViewCount":31,"Q_Id":75218078,"Users Score":0,"Answer":"If you want to truncate only a single table then use {ModelName}.objects.all().delete() otherwise use can use \"python manage.py flush\" for truncate database.","Q_Score":0,"Tags":"python,django,django-models,orm","A_Id":75220062,"CreationDate":"2023-01-24T06:26:00.000","Title":"Is there any way I can delete all the rows from database before altering the model in django?","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"HI I am writing a server script in Frappe Cloud  where I am trying to update a particular doctype(which is NOT THE DOCTYPE I HAVE CHOSEN IN DOCTYPE EVENT) using frappe.db.set_value(), then in order to save it i use frappe.db.commit().\nBut when the script tries to run I get the following error\nAttributeError: module has no attribute 'commit'\nAny ideas to whats wrong\nchange in the saved document data","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":24,"Q_Id":75218794,"Users Score":0,"Answer":"Use of frappe.db.commit mid transaction can lead to unintended side effects like partial updates.\nYou don't need to explicitly commit in your Server Script, Frappe handles those bits for you.","Q_Score":0,"Tags":"python,erpnext,server-side-scripting,frappe","A_Id":75262689,"CreationDate":"2023-01-24T08:01:00.000","Title":"does frappe.db.commit() not work in server script in Frappe Cloud?","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Is there any existing python package that can be used to handle METEOR RADAR data sets which are in .hwd file format?\nI want to work on atmoshpereic science project on tide analysis in the MLT region using python.So, the source of the data is METEOR RADAR which stores data in .hwd file format(height width depth).\nI tried searching the internet for specific packages that could help me file handle .hwd files but ended up finding no packages or libraries that are currently active.\nCould you please help me?\nThank you.","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":18,"Q_Id":75230297,"Users Score":1,"Answer":"I figured this out!\nThere is no need for external packages to work on hwd files in python.\nhwd files stand for Horizontal Wind Data files. So, METEOR radar stores data in hwd file format, which can be treated as a normal text(.txt) file for file handling in python.","Q_Score":0,"Tags":"python-3.x,machine-learning,data-analysis,physics,atmosphere","A_Id":75288717,"CreationDate":"2023-01-25T06:18:00.000","Title":"Any python package that can be used to handle METEOR RADAR data sets?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"Is it possible to download a video with controlslist=\"nodownload\" and if so how? There is a poster tag and a src tag with urls, but when I tried to open them it only said Bad URL hash.\nthe whole thing looks like this: <video controlslist=\"nodownload\" loop=\"\" poster=\"https:\/\/scontent-fra3-1.xx.fbcdn.net\/v\/t39.35426-6\/306972082_627455715702176_816739884095398058_n.jpg?_nc_cat=106&amp;ccb=1-7&amp;_nc_sid=cf96c8&amp;_nc_ohc=gGkqXkxok9sAX-lD2Df&amp;_nc_ht=scontent-fra3-1.xx&amp;oh=00_AfAwpoDJdXRX_30nbuDBub38X9EcpUWJnI4yRPZ2PI1WUA&amp;oe=63D59017\" src=\"https:\/\/video-fra3-1.xx.fbcdn.net\/v\/t42.1790-2\/307608880_755324925546967_7278828413698270618_n.?_nc_cat=106&amp;ccb=1-7&amp;_nc_sid=cf96c8&amp;_nc_ohc=2s1fEESN7NUAX_El4Hb&amp;_nc_oc=AQmgHTnQH8pGCmL7kHQnvHKKzkDFJc-6kTQazbteeA1cA21gUhBHplAVKoQmgAfQa2n1lKhOdkZlAXTbObUQycEp&amp;_nc_ht=video-fra3-1.xx&amp;oh=00_AfAOYW5RS8PEp52dlofPE3OtHjgd2SM0dxvk-dhnBIK8BQ&amp;oe=63D18E33\" width=\"100%\" height=\"175\"><\/video>\nany help is appreciated <3","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":33,"Q_Id":75238512,"Users Score":0,"Answer":"You can fix the \"Bad URL hash\" by replacing every &amp; with ;. Use String functions in your programming language to do this.\n\nFixing that above issue brings a new error about an expired\/invalid signature. This means the URL changes slightly after some hours. Solution: Is that you need to always first extract the latest version of the link, then secondly you attempt to do a file save. If you're lucky, you won't need a step three.","Q_Score":0,"Tags":"python,web-scraping,video","A_Id":75248735,"CreationDate":"2023-01-25T18:45:00.000","Title":"download video with python webscraping","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"We have Django application that run with gunicorn. We ware facing site downtime because of high trafic. Gunicorn is utilizng 96 % of the cpu that what cauing the issue.\nOur system specification:\n8 GB ram, 4 cpu\n\nHow to setup gunicron in such way that it can handle more than 100 request per second ?\n\nWhat are the system specifcation required for handling 100 request per second ?\n\nIs gunicorn workers are cpu count ?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":26,"Q_Id":75265325,"Users Score":0,"Answer":"Keep one worker only and increase number of threads in that worker. or use something like gevent in gunicorn","Q_Score":0,"Tags":"python-3.x,django,devops,gunicorn,autoscaling","A_Id":75265555,"CreationDate":"2023-01-28T04:17:00.000","Title":"Site downtime becuase of gunicron cpu utilization is 96%","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I've tried to create a new project with Django and docker-compose without creating virtual environment.\nBut now, when I want to start coding in VS Code, I get the reportMissingModuleSource.\nFor example in mysite\/urls.py \"Import \"django.contrib\" could not be resolved from sourcePylance\"","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":17,"Q_Id":75270106,"Users Score":0,"Answer":"Try Ctrl shift P, select the right interpreter go","Q_Score":0,"Tags":"python,django,docker-compose,virtual-environment","A_Id":75271610,"CreationDate":"2023-01-28T18:54:00.000","Title":"How can I solve the reportMissingModuleSource by using Django and docker-compose without creating a virtual environment?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am getting 'Import \"flask_wtf\" could not be resolved'.\nI had the same problem with:\nfrom flask import Fask\nI Had to reinstall flask multiple times\nfor flask_wtf\nI am getting Requirement already satisfied: itsdangerous in c:\\users\\myprojectvenv\\venv\\lib\\site-packages\n...\nInstalling collected packages: WTForms, flask-wtf\nSuccessfully installed WTForms-3.0.1 flask-wtf-1.1.1\nbut still nothing is working\nI tried reinstalling the flask and flask_wtf","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":46,"Q_Id":75279044,"Users Score":-2,"Answer":"I think you are in your virtual environment\nthat is (venv)\ncheck your terminal if the path to your project looks something like this\n(venv) c:\\users\\myprojectvenv\\venv\\lib........\nor something like that\ndeactivate it\nin your terminal run the command \"pip install flask-wtf\"\nthen reactivate it using the:\nvenv\\Scripts\\activate\nthis should solve the issue.\nI had a similar problem.","Q_Score":0,"Tags":"python,flask,flask-wtforms","A_Id":75279072,"CreationDate":"2023-01-29T23:06:00.000","Title":"getting Import \"flask_wtf\" could not be resolved","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a challenge with designing Django model that has existing rows in one of the column as shown below:-\n\n\n\n\nGaming device in use\nGaming Tax on GGR\nTax Rate\n\n\n\n\nNo of shop\/places\n\n\n\n\nNo of slot machines\n\n\n\n\nTotal Value\n\n\n\n\n\n\nI have tried to create one Model with column attributes as fields but I don't figure out how to put number of shops\/places and number of slot machines in my Model.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":28,"Q_Id":75295021,"Users Score":0,"Answer":"Look at the column types and create a model class with the same column name and types.\nRun the python manage.py makemigrations\nRun the python manage.py migrate\nAdd new columns (number_of_shops and number_of_slot_machines)\nRun the python manage.py makemigrations\nRun the python manage.py migrate","Q_Score":0,"Tags":"python,django,django-models","A_Id":75295124,"CreationDate":"2023-01-31T09:25:00.000","Title":"How can I design a Django Model with existing rows in one of the column?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am a student and my profesor needs me to install Django on PyCharm.\nI made a big folder called PyCharmProjects and it includes like everything I have done in Python.\nThe problem is that I made a new folder inside this PyCharmProjects called Elementar, and I need to have the Django folders in there but it's not downloading.\nI type in the PyCharm terminal django-admin manage.py startproject taskmanager1 (this is how my profesor needs me to name it)\nAfter I run the code it says:\nNo Django settings specified.\nUnknown command: 'manage.py'\nType 'django-admin help' for usage.\nI also tried to install it through the MacOS terminal but I don't even have acces the folder named Elementar (cd: no such file or directory: Elementar) although it is created and it is seen in the PyCharm.","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":52,"Q_Id":75322300,"Users Score":0,"Answer":"First of all, you can't create a project using manage.py because the manage.py file doesn't exist yet. It will be created automatically in the folder taskmanager1 if you run the command below.\nYou can create a project with the command\ndjango-admin startproject taskmanager1\nAfter that you can change the directory to the taskmanager1 folder with the cd taskmanager\/ command.\nWhen you changed the directory you can use the python manage.py commando for example if you want to run your migrations or creating an app.\npython manage.py migrate","Q_Score":0,"Tags":"python,django,pycharm","A_Id":75326283,"CreationDate":"2023-02-02T11:10:00.000","Title":"Manage.py unknown command","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"So I manually imported a certificate and key pair issued by a third party to certmanage in AWS and I am trying to programaticly export to a webserver and I get this error:\nbotocore.errorfactory.ValidationException: An error occurred (ValidationException) when calling the ExportCertificate operation: Certificate ARN: arn:aws:acm:us-east-1:x:certificatexxxxxxxx is not a private certificate\nCan I export a third party cert and private key from AWS certmanager?\npython -V\nPython 3.10.0\nI am trying to export a AWS managed certificate from certmanager and its failing.\nI've  tried googleing the error code but come up with nothing.","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":15,"Q_Id":75342534,"Users Score":1,"Answer":"AWS Certificate Manager (ACM) has two types of certificates. Public and Private.\nYou can't export any certificate when it is public. Even if you imported it.\nYou can associate your ACM certificate with ALB, for example, and put this ALB in front of your EC2 instance. But you can't export.\nAs you imported the certificate, it means you have the public and private parts of the certificate. You can just use it on your instance.\nOnly ACM privates ones can be exported.","Q_Score":0,"Tags":"python-3.x,amazon-web-services,boto3","A_Id":75345246,"CreationDate":"2023-02-04T02:16:00.000","Title":"Exporting Certificates from AWS Certmanager Boto3 Python310","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"For example, I have a post and I want to update it with tags and some custom field, like 'rating' or 'mood' (not using any plugin, only WP built-in options for custom fields and REST API).\nr = requests.post(WP_url, params = {'tags': tags, 'rating': rating}, auth = wp_auth)\nSomething like this. It works great for updating existing post parameters and fields, but I cannot find a way to create a custom field using Python API requests only.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":112,"Q_Id":75352647,"Users Score":0,"Answer":"I don't think it is possible to create a new field from request. Its depend on you WP Rest API Server, how it handles the excess argument you, if you API create a new field for any excess provided then only it will be possible to create new field.","Q_Score":1,"Tags":"python,wordpress,rest,python-requests","A_Id":75352704,"CreationDate":"2023-02-05T13:34:00.000","Title":"How do I make a Python request for WordPress REST API to create a custom field?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am using aws codebuild to execute my testsuite. It says 'permission denied' when I try to run allure genrate in aws code build.\nPleas share the solution if anyone knows on how to generate allure report while working with aws code build.\nI am using pytest and the scenario is working fine in local. but failes in aws as aws build is not allowing me to run allure generate command.\non successful dev deployment -- > tetssuite execution -- > generate allure repors --> uploade them to s3 --> send the report via email using aws SNS with lambda.\nall above steps are working fine, but the 3rd step.(allure generate).\nPlease share the solution if anyone knows how to do it.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":167,"Q_Id":75432923,"Users Score":0,"Answer":"I am able to fix this is by downloading allure package freshly outside of the $CODEBUILD_SRC_DIR and set the path for the same location .\n(Initially I made this part of test repository itself and add that location to PATH, which was not working)","Q_Score":1,"Tags":"python,amazon-web-services,pytest,allure","A_Id":75457422,"CreationDate":"2023-02-13T07:24:00.000","Title":"How to run allure generate command while using aws code build","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I develop an app for creating products in online shop. Let's suppose I have 50 categories of products and each of these has some required parameters for product (like color, size, etc.).\nSome parameters apper in all categories, and some are unique. That gives me around 300 parameters (fields) that should be defined in Django model.\nI suppose it is not good idea to create one big database with 300 fields and add products that have 1-15 parameters there (leaving remaining fields empty). What would be the best way to handle it?\nWhat would be the best way to display form that will ask only for parameters required in given category?","AnswerCount":2,"Available Count":1,"Score":0.0996679946,"is_accepted":false,"ViewCount":65,"Q_Id":75447819,"Users Score":1,"Answer":"If you have to keep the Model structure as you have defined it here, I would create a \"Product\" \"Category\" \"ProductCategory\" tables.\nProduct table is as follows:\n\n\n\n\nProductID\nProductName\n\n\n\n\n1\nShirt\n\n\n2\nTable\n\n\n3\nVase\n\n\n\n\nCategory table is following\n\n\n\n\nCategoryID\nCategoryName\n\n\n\n\n1\nSize\n\n\n2\nColor\n\n\n3\nMaterial\n\n\n\n\nProductCategory\n\n\n\n\nID\nProductID\nCategoryID\nCategoryValue\n\n\n\n\n1\n1 (Shirt)\n1 (Size)\nMedium\n\n\n2\n2 (Table)\n2 (Color)\nDark Oak\n\n\n3\n3 (Vase)\n3 (Material)\nGlass\n\n\n3\n3 (Vase)\n3 (Material)\nPlastic\n\n\n\n\nThis would be the easiest way, which wouldn't create 300 columns, would allow you to reuse categories across different types of products, but in the case of many products, would start to slowdown the database queries, as you would be joining 2 big tables. Product and ProductCategory\nYou could split it up in more major Categories such as \"Plants\", \"Kitchenware\" etc etc.","Q_Score":1,"Tags":"python,django,e-commerce","A_Id":75447889,"CreationDate":"2023-02-14T12:27:00.000","Title":"How to handle 300 parameters in Django Model \/ Form?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a Python\/Django code base in which strings are encapsulated in gettext calls. For legacy reasons, the strings in the Python files have been written in French and the English translations are inside a .po file.\nI now wish to make sure the Python files are in English, strings included. I would like to automatically switch the strings so that the English translations from the .po file end up in the Python files (instead of the French strings), while adding the French strings to a new .po file (matching the new \"original\" English string).\nSince I have a lot of strings, doing this manually would be extremely tedious. Is there any tool or library that could facilitate this process?","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":38,"Q_Id":75512982,"Users Score":0,"Answer":"There is no such tool.\nIf you don't write it yourself, you can use POEdit or Emacs as a helper. Both have a function that lets you jump to the source code line of a PO entry so that copy and paste is a little faster.","Q_Score":1,"Tags":"python,gettext","A_Id":75649833,"CreationDate":"2023-02-20T18:35:00.000","Title":"Automatically switch Python gettext strings with their translations from a .po file","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":1,"System Administration and DevOps":0,"Web Development":1},{"Question":"I am using pafy in a Flask app. It is working fine on my local machine. But when I am trying to deploy and run on PythonAnywhere, it is throwing an error. Upon execution, it is showing the following ewrror:\n\nyoutube_dl.utils.ExtractorError: Unable to download API page: <urlopen error Tunnel connection failed: 403 Forbidden> (caused by URLError(OSError('Tunnel connection failed: 403 Forbidden')))\nNO MATCH\nDuring handling of the above exception, another exception occurred:\nNO MATCH\nTraceback (most recent call last):\nFile \"\/home\/Philomath\/.local\/lib\/python3.8\/site-packages\/pafy\/backend_youtube_dl.py\", line 40, in _fetch_basic\nself._ydl_info = ydl.extract_info(self.videoid, download=False)\nFile \"\/home\/Philomath\/.local\/lib\/python3.8\/site-packages\/youtube_dl\/YoutubeDL.py\", line 808, in extract_info\nreturn self.__extract_info(url, ie, download, extra_info, process)\nFile \"\/home\/Philomath\/.local\/lib\/python3.8\/site-packages\/youtube_dl\/YoutubeDL.py\", line 824, in wrapper\nself.report_error(compat_str(e), e.format_traceback())\nFile \"\/home\/Philomath\/.local\/lib\/python3.8\/site-packages\/youtube_dl\/YoutubeDL.py\", line 628, in report_error\nself.trouble(error_message, tb)\nFile \"\/home\/Philomath\/.local\/lib\/python3.8\/site-packages\/youtube_dl\/YoutubeDL.py\", line 598, in trouble\nraise DownloadError(message, exc_info)\nyoutube_dl.utils.DownloadError: ERROR: Unable to download API page: <urlopen error Tunnel connection failed: 403 Forbidden> (caused by URLError(OSError('Tunnel connection failed: 403 Forbidden')))\n\nI have also removed the lines for dislike count in backend_yoututbe_dl in PythonAnywhere (from bash). Still, no use.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":90,"Q_Id":75635467,"Users Score":2,"Answer":"That will not work on PythonAnywhere. Any youtube video downloads use unofficial methods and so PythonAnywhere will not add youtube to the allowlist for free accounts.","Q_Score":1,"Tags":"python,pythonanywhere,youtube-dl,pafy","A_Id":75641696,"CreationDate":"2023-03-04T11:48:00.000","Title":"Pafy module causing error in PythonAnywhere","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm investigating the possibility of storing MOJOs in cloud storage blobs and\/or a database.  I have proof-of-concept code working that saves the MOJO to a file then loads the file and stores to the target (and vice-versa for loading), but I'd like to know if there's any way to skip the file step?  I've looked into python's BytesIO, but since the h2o mojo APIs all require a file-path I don't think I can use it.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":41,"Q_Id":75653463,"Users Score":2,"Answer":"It's possible using the H2O's REST API. Have a look at model.download_mojo() for the reference which gets the model from the backend and then persists it using the _process_response() method. You can have a look at h2o.upload_mojo() for the uploading part.","Q_Score":1,"Tags":"python,machine-learning,h2o","A_Id":75659358,"CreationDate":"2023-03-06T16:37:00.000","Title":"Storing H2o models\/MOJO outside the file system","Data Science and Machine Learning":0,"Database and SQL":1,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I made a streamlit app that locally writes to a CSV on the instance, and just realized now i have no way to get that data. I am pretty sure if I push up a change via github it'll overwrite the DB (can I use a gitignore maybe?)\nPretty dumb problem, open to any suggestions how to recover the data :)","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":113,"Q_Id":75669330,"Users Score":0,"Answer":"To recover the data, you need to access the CSV file directly on the instance where the Streamlit app is running. You can try using a file transfer protocol (FTP) client to connect to the instance and download the CSV file. If you're on windows you'd use WinSCP for linux and Mac there is Filezilla.\nFor future purposes, it's better to use a database for storage and retrieval like MySQL or PostgresDB. You could also store the CSV in storage facility like S3 as a last resort. But Databases are the way to go.\nAlso yes you could add the CSV to your .gitignore file.","Q_Score":1,"Tags":"python,streamlit","A_Id":75669593,"CreationDate":"2023-03-08T03:56:00.000","Title":"Getting data from streamlit instance","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I want to build a python app sending reminder at certain time. It would have several subscribers. Each subscriber sets specific moment when they want to be notified. For example, John wants to have a reminder every days whereas Cassandra wants it every months.\nI see several ways to do it :\n\nUse a script running 24\/7 with a while loop and checks if it's time to do send the reminder.\nUse a cron tab that runs the script every minutes to check if there's reminder to send\nCreate a simple api (in Flask for example). It checks every minutes or so if there is a reminder to send to subscribers or even make a request to the api.\n\nWhat is the best way to build such application in Python for few subscribers (10) and for a larger amount(1000)","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":50,"Q_Id":75776827,"Users Score":1,"Answer":"For a small amount of subscribers I would do a script that run all the times, it would continuously check the time and send reminders as needed, you can use time and datetime modules for that.\nFor a large amount of subscribers it would be an API that can manage multiple request simultaneously, you can use Flask or Django or FastAPI for that.\nFor the API how would it work is that subscribers would make POST request with all the informational notification ( date, time, what message they want to receive for example ) then the server store those informations in a database like if you are familiar with python Celery seem the best one but you have Airflow too, it will schedule a reminder to be executed at a certain time.\nThen when the reminder is executed it just retrieve the informations from the database, and send it via email for example","Q_Score":1,"Tags":"python,web-applications,architecture","A_Id":75777017,"CreationDate":"2023-03-18T15:28:00.000","Title":"Best way to build application triggering reminder at certain time","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm making a python package where the main functionality is using a model that I've trained. I want it to be as easy as possible to access the model for end users so they can just use the main functions without needing to actively go find and download the model separately.\nI initially thought I would just include the model file in the package but it is on the large side (~95MB) and Github warns me about it so my feeling is I should try find an alternative way.\nI've tried compressing the model by zipping it but that doesn't make much of a dent in the file size. The model itself is fixed so I can't reduce the size by training an alternative version with different hyperparameters.\nMy solution at the moment is to not include the model and instead download it from s3 when the relevant class is used (this is an internal package, so everybody using it would hypothetically have access to the s3 bucket). However, I don't really like this solution because it requires users to have things set up to access AWS with a specific role, and even if I include examples \/ documentation \/ hints in error messaging, I can imagine the experience not being ideal. They also have the option of passing a file path if they have the model saved somewhere, but again that requires some initial setup.\nI've tried researching ways to access \/ package models but haven't come up with much.\nSo my questions are:\n\nIs there a way to include this model in the package?\nAre there other ways to access the model that I haven't thought about?","AnswerCount":1,"Available Count":1,"Score":0.3799489623,"is_accepted":false,"ViewCount":33,"Q_Id":75800672,"Users Score":2,"Answer":"Is there a way to include this model in the package?\n\nYes, you can include any file\u2014no matter the size\u2014in a Python package.\n\nAre there other ways to access the model that I haven't thought about?\n\nIf the user is going to have to download it anyway, why not in the package?\nOne reason: if the model rarely changes, but the code around it does, the users will have to repeatedly download a large package.\nCould you have two Python packages?  One that is just the model and the other that is the code?  That way the user will only need to download the model again if a new version is available.","Q_Score":1,"Tags":"python,python-packaging","A_Id":75800745,"CreationDate":"2023-03-21T11:35:00.000","Title":"Accessing model when creating new python package","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":1,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I needed some information from you, since I haven't found much on the internet.\nI recently bought a domain on godaddy.com and I wanted to use it to host my web app developed in Flask.\nGiven the price spent to buy the domain, I wanted to avoid spending money on hosting as well (if it could be avoided).\nI tried with Netlify, but it doesn't allow you to host apps developed in Flask (it gives me everytime a 404 error), a pity because it would have been very convenient, since I could very easily configure the web app with my domain.\nCan anyone tell me a possible free solution? I repeat, I already have the domain, I just need a hosting service.\nThanks in advance to those who will reply.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":115,"Q_Id":75876820,"Users Score":0,"Answer":"If you're looking for free options, your best bets are Render.com or pythonanywhere, as has already been mentioned.\nPersonally I'd recommend Render as I have, like you, been looking for places to host my flask apps. I used to use Heroku which was perfect but once they removed the free tier I moved away.\nIt depends on the complexity of your flask app as to what will work with Render, but one I'm hosting uses their PostgreSQL without any issues. It's really simple to setup too if you have your repository on GitHub with their integrations.\nI have one however that doesn't properly work but I think that's more to do with limitations on the free tier and how I've coded it to work. I also tried Netlify but it doesn't seem to like Flask or Python very much.","Q_Score":1,"Tags":"python,html,css,flask,web-hosting","A_Id":75881240,"CreationDate":"2023-03-29T11:50:00.000","Title":"Hosting a flask web app with a domain I already own","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Poetry install fails with ChefBuildError: Backend operation failed: HookMissing('build_editable')\nMy poetry version is 1.4.2","AnswerCount":2,"Available Count":1,"Score":0.0996679946,"is_accepted":false,"ViewCount":1582,"Q_Id":75934738,"Users Score":1,"Answer":"This worked for me\nI believe this is caused by a change to how the build-backend is defined in the pyproject.toml between poetry ^1.3 and poetry ^1.4. Assuming you have poetry ^1.4 installed you have two options:\n\nIn your pyproject.toml change build-backend = \"poetry.masonry.api\" to build-backend = \"poetry.core.masonry.api\"\n\nIf, like me you have other code the assumes poetry ^1.3 then simply downgrade you poetry version poetry self update 1.3.2\n\n\n\nIf you go with option 2 you may get a bunch of RuntimeError hash for xxx errors. If that's the case you will also need to rm -r ~\/.cache\/pypoetry\/artifacts and rm -r ~\/.cache\/pypoetry\/cache.","Q_Score":1,"Tags":"python-3.x,python-poetry","A_Id":75934739,"CreationDate":"2023-04-05T00:09:00.000","Title":"Poetry install ChefBuildError","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I have generated a PDF file through python using pdfkit library running on django server.\nThe size of pdf generated is 43.2 MB.\nTotal pages in pdf = 15.\nEach page has 70 images, each image size = 623 bytes.\nTech Stack version used-\n-Python = 3.8.16\n-pdfkit = 1.0.0\n-wkhtmltopdf = 0.12.6\n-Django = 3.2.16\nSystem OS = Ubuntu 22.04.2 LTS\nRequirement is to compress this pdf file without compromising with the quality of content, images in it.\nAny approach or suggestions for improvements in the things tried?\nThings tried:\n\nPDFNetPython3 python package- requires license\/key file.\nGhost-script command from system(ubuntu) terminal to reduce file.\nshrinkpdf.sh - file got from github.\nps2pdf command from system terminal.\npdfsizeopt\ncpdf\nMaking zip of original file\nChanging dpi value in pdfkit options.\n\nFile size after compression with quality of content maintained = 23.7 MB.\nExpectation is have more reduction in file size.","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":443,"Q_Id":75946538,"Users Score":0,"Answer":"I had a similar problem - one report generated with pdfkit was resulting in a 32mb file that I couldn't deliver through discord.\nI ended up changing my code to create the report using fpdf2 and the report now is less than 2mb","Q_Score":1,"Tags":"django,pdf,compression,wkhtmltopdf,python-pdfkit","A_Id":75998327,"CreationDate":"2023-04-06T06:36:00.000","Title":"Is there any way to highly compress PDF files through python?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a flask project, usually i push it to dockerhub and i run it using docker run dockerhub-image, and after i updated things inside static folder, i stopped and removed the container and also removed the image, after that i repush it again to dockerhub and re-run it, but when visiting it on the web, the files inside static folder does not change at all (other files outside static folder are changed), had no idea to fix this.\nI have searched questions related to this issue but couldn't find any of it.\nQ: how do fix this issue?","AnswerCount":2,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":51,"Q_Id":76097898,"Users Score":0,"Answer":"Docker tags should ideally be immutable. If you're just using docker run <image> rather than docker run <image>:<new tag>, then you're just running the previously pulled, locally cached latest tag. Running an image doesn't automatically pull the newest latest tag\nAlso, as commented, your browser can cache static web assets","Q_Score":1,"Tags":"python,docker,flask","A_Id":76248524,"CreationDate":"2023-04-25T05:37:00.000","Title":"Files inside static folder are not updated on docker","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I am using Fastapi , and this delete request is there , so for my hosted api or be it on localhost can i send directly delete request in browser like url --> http:\/\/api\/delete\/2 .\nIt gives me a method not allowed response and similar for update and put api as well,\nCan i directly do through this way or not, ?\nI was trying to send this delete API request through url , but the json response says method not allowed..","AnswerCount":1,"Available Count":1,"Score":0.3799489623,"is_accepted":false,"ViewCount":49,"Q_Id":76111063,"Users Score":2,"Answer":"By default in browser , api requests are taken as \"GET\" request . To execute any other type of requests use curl or postman .","Q_Score":1,"Tags":"python,api,fastapi","A_Id":76114810,"CreationDate":"2023-04-26T13:01:00.000","Title":"Can i send delete api request directly in browser url?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm pretty new to Python and not sure, where to start searching. For a small project I'm trying to figure out if one can manipulate CSS code via python, so that dynamic changes are visible in a browser without refreshing the page? Say you want to change the background of some DIV from green to red depending on a recurring python expression\/events after the page has been loaded, like a status indicator that changes over time.\nUpdate: The project is a simple network scanner. As pings have to be handled asynchronous, I have to find a way to update the online status of a host in a table after the page has been loaded. It's a HTML page hosted on my Mac, which I open in a tool, which displays it as a dektop wallpaper.","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":52,"Q_Id":76115349,"Users Score":0,"Answer":"Short answer? Sort of.\nWhat you see in a browser is some application (Chrome, Firefox, Safari), parsing an html file that may contain various text, tags, js, css, etc...and making the determination of how to render that content.  In order for the content to update\/change, the html must either re-load or have some javascript  running that directly changes the Document Object Model (DOM). But currently,  there is no mechanism for running python inside of a web page.\nNow, that being said, what you could do is have some Javascript that listened or polled a server written in Python that emitted content\/messages\/events that your JS framework (in the webpage) responded to and would make the appropriate changes in your DOM. It's not uncommon and that's how a lot of web pages do what they do: Some 'Backend', could be Python or C# or even JS, that responds to requests from a 'Frontend' e.g. your webpage or browser, and sends content, sometimes as JSON instead of HTML.","Q_Score":1,"Tags":"python,html,css","A_Id":76115432,"CreationDate":"2023-04-26T21:48:00.000","Title":"Is it possible to do live css changes on a HTML page via python?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm trying to set up my Python application to send data to AppDynamics. I have the AppDynamics controller up and running and on my local my application works, but no data is found on AppDynamics\nI've been told to use this repo as a template (and I can confirm it works, sending data to the AppDynamics instance I'm working on) https:\/\/github.com\/jaymku\/py-k8s-init-scar\/blob\/master\/kube\/web-api.yaml\nI have some doubts though, and they might be the cause of the issues that I'm having.\nI had in my Dockerfile a CMD at the end like first.sh && python3 second and I've changed it to be ENTRYPOINT \"first.sh && python3 second\". Note no [] format here and also that there are two concatenated commands.\nOn the value of the APP_ENTRY_POINT variable I'm trying just the same.\nThere are no errors when I run this, my application works correctly, except the data is not sent to AppDynamics. Nothing seems to fail, I can't find any error messages. Any ideas what I'm missing?\nAlso, where can I find out, within AppDynamics, the value that we need to set for the APPDYNAMICS_CONTROLLER_PORT variable? I'm pretty sure it will be 443 in our case, since we seem to be using that in other proyects in AppDynamics that are working, but checking it would be a good idea. It might also be related with this issue, I don't know.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":39,"Q_Id":76136697,"Users Score":0,"Answer":"I managed to have this working by using CMD instead of ENTRYPOINT, using the command that is found inside the suggested entrypoint. So, I did the same that was supposed to done the entrypoint but inserting the command myself","Q_Score":1,"Tags":"python,dockerfile,appdynamics","A_Id":76294759,"CreationDate":"2023-04-29T14:16:00.000","Title":"Set AppDynamics integration with Python","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":1,"Web Development":1},{"Question":"I have been trying to install pyrebase4 using pip install pyrebase4 but when ran it throws below error\n\"C:\\Users\\ChodDungaTujheMadhadchod\\anaconda3\\envs\\sam_upgraded\\lib\\site-packages\\requests_toolbelt\\adapters\\appengine.py\", line 42, in <module> from .._compat import gaecontrib ImportError: cannot import name 'gaecontrib' from 'requests_toolbelt._compat'\nAs I see the error direct directly to requests_toolbelt , but I cannot figure out the possible way to fix it, I tried upgrading to latest version as which is requests-toolbelt==1.0.0 . So is there any way to fix it.","AnswerCount":2,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":1817,"Q_Id":76208396,"Users Score":10,"Answer":"Okay so what I found that the latest requests-toolbelt 1.0.1 is currently throwing this issue. So downgrading it to next previous version requests-toolbelt==0.10.1 fixes the issue.","Q_Score":4,"Tags":"python,pyrebase,python-requests-toolbelt","A_Id":76208526,"CreationDate":"2023-05-09T10:34:00.000","Title":"Pyrebase4 error cannot import name 'gaecontrib'","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":1,"System Administration and DevOps":1,"Web Development":1},{"Question":"I have some questions about creating microservices with Django.\nLet's say we have an online shop or a larger system with many database requests and users. I want to practice and simulate a simple microservice to learn something new.\nWe want to create a microservices-based system with the following components:\n\nA Django-based microservice with its admin panel and full functionality (excluding DRF).\nOne or more microservices with a React\/Angular frontend.\nSeveral additional microservices to separate functionalities.\nI'm unsure about the architecture. Let's assume we want to manage data using the Django admin panel.\n\nThe simplest solution would be to add DRF to the first microservice and extend its functionality (REST app) - instead of creating different services (3.).\n\nBut what if we want to separate functionality into different microservices?\nShould the microservices in point 3 be connected to the same database and treated as different Django projects (with DRF)?\nCan we use GoLang, FastAPI, or Java Spring for the third microservice? If yes, should all models be duplicated and registered in the first microservice?\nAlternatively, is there a better way to approach this?\n\nIt would be great to hear your perspective and methods on how to proceed with this.\nHave a wonderful day!","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":213,"Q_Id":76296961,"Users Score":1,"Answer":"First a quick summary of Microservices vs Monolithic apps pros and cons (this is important).\nMicroservices:\n[ PROS ]\n\nscalability (they scale independently)\nflexibility (each microservice can use its own stack & hardware setup)\nisolation (the failure of one microservice does not affect another, only its service fails.)\n\n[ CONS ]\n\nComplexity (so much infrastructure to setup and maintain at every layer)\nData consistency (each db is independent so makink sure consistency is maintained is added complexity)\nDistributed system challenges ( latency\/fault tolerance and testing is much harder)\n\nNow for your questions:\n\nseparating functionality into different microservices.\nThat is what apps in a Django project are for, and is a core principle of software engineering, separation of concerns can still be applied in a monolithic application.\nWhen discussing microservices, the questions should be about what benefit would it bring at the cost of complexity, such having a service that does pure gpu computation, perhaps would benefit from being a microservice running in on an optimized language and system with access to GPUs. I would even argue you should only transition to using microservices, when you have explored all other solutions, and have composed an irrefutable argument to do so with the team.\n\nShould microservices be connected to the same DB.\nMicroservices should have their own db, see Isolation. otherwise it's the same as just using a monolithic app with extra complexity and no benefit.\n\nCan you use a different stack, and should duplicated models be registered. This again comes under a missunderstanding of what a microservice is. Your microservice should encapsulate the minimum amount of data it needs to function independently.\n\nAlternative: Design your Monolithic application very well, separate out your concerns and business logic in a de-coupled design, even if it's a monolith. you have to have the mindset of: \"if I want to swap this functionality for a microservice, how easily will it be to rip it out, what is the coupling, etc...) A good design leads to scalability and maintainability which is most important. It also allows other people to contribute their expertise on a subset of the project, without needing to know the whole.","Q_Score":1,"Tags":"python,django,django-rest-framework,microservices","A_Id":76300246,"CreationDate":"2023-05-20T19:13:00.000","Title":"Microservices architecture with Django","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I'm currently working on a project in python. I have seen that there is to main way to create an API (with an SQL base and sqlaclhemy) on AWS : \n1. Use zappa + flask and deploy everything inside one lambda. Zappa handle everything, the major cons is an overload lambda, I thought lambda had to be light as possible, so with this architecture why not use AWS fargate ? \n2. Use api gateway, do one lambda per endpoint, and deploy everything with terrafom. Even if you do one lambda per endpoint, it makes smaller code with less packages and it is easier to maintain.\nIn both case you can use sqlAlchemy for sql part.\nSo, my question is simple, why would you chose zappa + flask to deploy an API on lambda ?\nI have tried both way.\nI can't find why zappa+flask seems to be better. On every tuto they use this architecture why ?","AnswerCount":1,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":46,"Q_Id":76373819,"Users Score":1,"Answer":"Use zappa + flask and deploy everything inside one lambda. Zappa handle everything, the major cons is an overload lambda, I thought\nlambda had to be light as possible, so with this architecture why not\nuse AWS fargate ?\n\n\nAWS Fargate is a completely different service with a completely different billing model. Lambda is billed per number of executions, with a free-tier that could make some smaller projects completely free. Fargate is billed for every second you have the service deployed and running, even if it is just waiting for connections to come in, and Fargate has no free-tier.\n\n\nUse api gateway, do one lambda per endpoint, and deploy everything with terrafom. Even if you do one lambda per endpoint, it makes smaller code with less packages and it is easier to maintain.\nIn both case you can use sqlAlchemy for sql part.\n\n\nIf you have the expertise to do this, this is by far the best way to go. Zappa seems primarily designed for people that want to run Django on AWS Lambda, for the cost savings. I think the Flask support was added later, and as you have pointed out it really doesn't give you any benefit unless you want to simply think about coding in Flask and don't want to take the time to learn how to use AWS.","Q_Score":1,"Tags":"python,amazon-web-services,zappa","A_Id":76374216,"CreationDate":"2023-05-31T13:06:00.000","Title":"Why use Zappa in lambda rather than API gateway?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have an old python pyramid web application and I just wanted to create an API documentation (specifically Swagger or OpenAPI3) for it. Is there a way to do that without writing the entire swagger YAML schema yourself. Is there a library that automatically scans through all the @view_config routes in the application and then generates the document for it.\nThere are similar things in spring or spring-boot where the swagger schema\/spec is autogenerated based on the code. Is there a similar of doing this for the python pyramid application.\nPS. The application uses Poetry as the dependancy manager.","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":25,"Q_Id":76513301,"Users Score":0,"Answer":"As far as I know, there isn't OpenAPI-sec generating solution for Pyramid. pyramid_openapi reads Yaml file and generates view bindings for you, not the opposite what you are asking in the question.\nMy guess is that the best solution would be lift some code from FastAPI and integrate that to your Pyramid application.","Q_Score":2,"Tags":"python,swagger,openapi,pyramid","A_Id":76540105,"CreationDate":"2023-06-20T09:32:00.000","Title":"Swagger Documentation for Python Pyramid Application","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"My app MERN in hosted on Heruku.\nI see a lot of requests running in the console (heroku logs --tail)in the same second, looks like they are automated.\nRequests have weird things inside.\nExample is path=\"\/get-spot-by-type-key?key=ifIJnFkezs2v4X**.php**&type=business\"\n\"if\" and \"php\" is something we don't have usually.\nAll requests are from the same fwd.\nHow to block them?","AnswerCount":1,"Available Count":1,"Score":1.2,"is_accepted":true,"ViewCount":16,"Q_Id":76522005,"Users Score":0,"Answer":"Looks like you are being scanned by some attack proxy. There is no easy solution around it I believe. Or better to say - the solutions may have side effects. You can:\n\nBlacklist the IP address accessing your resources. PRO: easy CONS: it is easy for an attacker to switch to some other IP via proxy\/tor and you can exclude some valid users this way.\nBlacklist the payload or parts of it. Since this is a scan the payload will change all the time so this will be lots of futile work.\n\nIf your website offers resources to authenticated users only - blacklist the user. (ok, this might be actually quite simple but works under certain conditions)\nThere are other solutions you may want to use like showing users some captcha when you recognize unusual traffic, but they require a bit of implementation effort.\nAlso you may want to consider hiding your server behind cloudflare or similar and let someone else handle the security response.","Q_Score":1,"Tags":"security,heroku,python-requests","A_Id":76522702,"CreationDate":"2023-06-21T09:51:00.000","Title":"App gets a lot of requests from same IP in one second, looks like atack","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a frontend web application built with JavaScript, HTML, and CSS. I would like to incorporate the output of a Python script into my frontend without using a server or a full backend solution.\nThe Python script is a simple neural network, and I want to display its output in the frontend, such as showing the result as a header or plotting a graph generated by the script.\nI have already tried printing the output to the console from the Python script, but I need assistance with transferring that output to the frontend.\nIs it possible to achieve this without a server? I am open to suggestions and starting with a simpler solution, like plotting a graph generated by the Python script in the frontend.\nI appreciate any guidance or code examples on how to accomplish this. Thank you!\nI have looked into Django but I feel as if that seems too complex and more server focused for the simple task I require.\n! ANSWERED ! It only lets me accept one answer but I would say that both the streamlit and the Wasm Answers are acceptable.","AnswerCount":3,"Available Count":1,"Score":0.1973753202,"is_accepted":false,"ViewCount":102,"Q_Id":76585705,"Users Score":3,"Answer":"looks like you are trying to make a web application with no backend.\njavascript is your only hope, if there is no backend.\nit is not possible to integrate python with CSS, Javascript, and HTML without a backend.","Q_Score":1,"Tags":"javascript,python,html,django,web","A_Id":76586292,"CreationDate":"2023-06-30T02:44:00.000","Title":"Is it possible to integrate python with CSS, Javascript, and HTML?","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"I have a Flask web-application with lots of products. Some of the product names have a \"\/\" in them. For the URL of the products with a slash in them, I am using URLencoding to solve this issue. So, an example of a URL is:\n<a href=\"https:\/\/www.example.com\/indProduct\/productdb&#47;new\">click<\/a>\nAnd in developer tools, if you inspect that button, it renders:\n<a href=\"\/indProduct\/productdb%26%2347%3Bnew\">click\/a>\nThis works perfectly. I can click the button and it takes me to the product. However, I am using SEMrush to audit my website, and it is raising the issue that this button is a \"Broken internal link\". The URL that it gives that shows it as broken is:\nhttps:\/\/www.example.com\/indProduct\/productdb&#47;new\nHow do I fix this? The website works completely fine. There are no broken links anywhere. But for some reason, SEMrush logs that as a broken internal link...","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":32,"Q_Id":76616691,"Users Score":0,"Answer":"Some servers will actually decode URLs thus making the URL encoding pointless in the main URL. You can pass your product name in a GET parameter or you can replace the forward slash with a different character and then replace it back when you read it.","Q_Score":1,"Tags":"javascript,python,html,flask,urlencode","A_Id":76627413,"CreationDate":"2023-07-05T02:01:00.000","Title":"URLencoded shows as broken internal link","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":1,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1},{"Question":"Homepage of my Flask application is rendered correctly, but the issue arises when I click a button (submit) which takes me to another endpoint where instead of rendering that page, I get an error saying, \"The server encountered an internal error and was unable to complete your request. Either the server is overloaded or there is an error in the application.\"\nI tried to referring to various sources, but couldn't come up with a solution","AnswerCount":1,"Available Count":1,"Score":0.0,"is_accepted":false,"ViewCount":22,"Q_Id":76628887,"Users Score":0,"Answer":"After several hours, I resolved it and there were 2 issues:\n\nThe path specified in my python file (predict_pipeline.py): Used backslashes (\u2018\\\u2019) to separate the dirs, which is the convention for file paths in Windows. However, when deploying application on AWS Elastic Beanstalk, the underlying operating system in Linux which uses forward slashes (\u2018\/\u2019).\n\nSol: modify the file paths using os.path.join(), which is a platform independent way of joining directory and file names. Change \u201cartifacts\/model.pkl\u201d to os.path.join(\u201cartifacts\u201d, \u201cmodel.pkl\u201d)\n\nThe version of scikit-learn==1.3.0 used in our flask application doesn\u2019t match with the scikit-learn==1.2.2 version used by Elastic Beanstalk.\n\nSol: change scikit-learn version in our virtual environment by specifying scikit-learn==1.2.2 in the requirements.txt file in our project directory and install it using pip install -r requirements.txt","Q_Score":1,"Tags":"python,flask,deployment,amazon-elastic-beanstalk","A_Id":76629760,"CreationDate":"2023-07-06T12:33:00.000","Title":"\"500 internal servor error\" when using a Flask application deployed by AWS Elastic Beanstalk","Data Science and Machine Learning":0,"Database and SQL":0,"GUI and Desktop Applications":0,"Networking and APIs":0,"Other":0,"Python Basics and Environment":0,"System Administration and DevOps":0,"Web Development":1}]