teleren/devto huggingface dataset:
Building an Installable Desktop App with Python, PyQt, and Py2app
Published: 2023-09-05 07:58:35

Desktop applications remain a popular choice for many utilities and tools. With Python being one of the most versatile and widely used programming languages, combining it with a GUI library like PyQt can yield robust applications. In this tutorial, we’ll go through the process of creating a simple installable desktop app using Python, PyQt, and Py2app.

## Prerequisites:

### 1. Installing Python and pip

Ensure you have both Python and pip installed. If not, here’s how you can do it:

- Download and install Python from the official Python website.
- Pip is included by default with Python 3.4 and later.

### 2. Installing necessary libraries

With pip in place, install the necessary libraries:

```bash
pip install py2app PyQt5 pyinstaller
```

## Creating Your Desktop Application:

### 1. Writing `app.py`

Here’s a simple PyQt application that displays a window with a greeting message:

```python
import sys
from PyQt5.QtWidgets import QApplication, QLabel, QMainWindow

class MyApp(QMainWindow):
    def __init__(self):
        super().__init__()
        self.setWindowTitle('Hello PyQt')
        self.setGeometry(100, 100, 200, 80)
        label = QLabel('Hello, world!', self)
        label.setAlignment(Qt.AlignCenter)
        self.setCentralWidget(label)

if __name__ == '__main__':
    app = QApplication(sys.argv)
    window = MyApp()
    window.show()
    sys.exit(app.exec_())
```

### 2. Creating `setup.py`

This script informs py2app how to package your application. Here’s a basic example:

```python
from setuptools import setup

APP = ['app.py']
DATA_FILES = []
OPTIONS = {
    'argv_emulation': True,
    'packages': ['PyQt5'],
}

setup(
    app=APP,
    data_files=DATA_FILES,
    options={'py2app': OPTIONS},
    setup_requires=['py2app'],
)
```

## Making Your Python GUI App Executable:

Execute the following command:

```bash
python setup.py py2app
```

This will bundle your PyQt application into a standalone executable. Once finished, you’ll find a .app bundle in the `dist` directory.

## Making Your Desktop App Installable:

### 1. Install Node.js and npm

You can download and install both from the official Node.js website.

### 2. Install `create-dmg` using npm

```bash
npm install -g create-dmg
```

### 3. Create an installable dmg for macOS

```bash
create-dmg 'dist/YourApp.app' destination_path/
```

Replace `YourApp.app` with your actual application name and `destination_path/` with where you want the .dmg file to be saved.

---

And voila! You now have an installable desktop app created with Python and PyQt. This process provides a straightforward method to develop and distribute GUI applications for macOS. Happy coding!
Mastering VS Code: The Power of Keyboard Shortcuts
Published: 2023-09-05 07:56:38

Every professional tool has its nuances that allow for an optimized and efficient workflow. One of the many reasons developers love Visual Studio Code (VS Code) is its robust set of keyboard shortcuts. Keyboard shortcuts not only speed up your workflow but also give you a feel of fluency and mastery over your tools. In this article, we’ll dive deep into some of my most frequently used keyboard shortcuts in VS Code.

## Why Use Keyboard Shortcuts?

Before we delve into the specifics, let’s address the importance of using keyboard shortcuts. By eliminating the need to constantly reach for your mouse or to navigate through menus, you’re not only saving precious seconds but also maintaining your flow state. Over time, these saved seconds add up, leading to significant productivity gains.

## My Most-Used VS Code Shortcuts

Below are the (MacOS) shortcuts that I find myself using the most in my daily workflow:

- **Navigating between tabs and terminal:** `⌘ + `` 
- **Formatting code:** `⇧ + ⌥ +`
- **Commenting out code:** `⌘ + /`
- **Indenting and outdenting code:** `⌘ + ]` / `⌘ + [`
- **Moving lines of code:** `⌥ + ↑` / `⌥ ↓`
- **Copying an entire line:** `⇧ + ⌥ + ↑` / `⇧ + ⌥ ↓`
- **Deleting a section or line:** `⌘ + ⇧ + K` / `⌘ + X`
- **Starting a new line:** `⌘ + Enter`
- **Jumping to the start or end of a document:** `⌘ + ↑` / `⌘ + ↓`
- **Folding a function or section:** `⌥ + ⌘ + [`
- **Unfolding a function or section:** `⌥ + ⌘ + ]`
- **Accessing quick actions and commands:** `⌘ + ⇧ + P`
- **Navigating to settings:** `⌘ + ,`

## Dive Deeper

The beauty of VS Code is its flexibility. If the above shortcuts don’t align with your personal preferences or if you have a unique set of commands you frequently access, you can always customize your shortcuts. Just head over to settings > keyboard shortcuts in VS Code to explore and set your own combinations.

## Wrapping Up

Mastering keyboard shortcuts in VS Code (or any tool, for that matter) is akin to mastering a musical instrument. The more you practice, the more fluent and efficient you become. Embrace these shortcuts, and watch your productivity soar!

I hope this article encourages you to dive deeper into the functionalities of VS Code and truly harness its power. Happy coding!
How to Manage the Complexity of Large GraphQL Schemas
Tags: graphql, webdev, programming, graphqlschemas
Published: 2023-09-05 07:39:55

## Introduction

GraphQL is a powerful query language that allows developers to fetch data from a variety of sources. However, GraphQL schemas can quickly become large and complex, making it difficult to manage them.

There are a few things you can do to manage the complexity of large GraphQL schemas:

**Split the schema into smaller schemas:** This can be done by grouping related types and fields together into separate schemas.
Use custom scalar types. Custom scalar types are types that are defined by the developer and that are not part of the standard GraphQL schema.

**Use directives:** Directives are special annotations that can be used to add metadata to GraphQL fields.

**Use schema introspection: **Schema introspection is a feature of GraphQL that allows developers to explore the schema and to learn about its fields and types.

One tool that can help you with this is Squidex. Squidex is a GraphQL schema management tool that can help you to create, manage, and deploy GraphQL schemas with ease. Squidex provides a number of features that can help you to manage the complexity of large GraphQL schemas, including:

**Schema validation:** Squidex can validate GraphQL schemas to ensure that they are well-formed and consistent.

**Schema documentation:** Squidex can generate documentation for GraphQL schemas, making it easier for developers to understand the schema and its capabilities.

**Schema introspection:** Squidex can provide introspection into GraphQL schemas, allowing developers to explore the schema and its fields and types.

**Schema migration:** Squidex can help developers to migrate between different versions of GraphQL schemas.

## Conclusion

These are just a few tips for managing the complexity of large GraphQL schemas. By following these tips, you can make it easier to understand and maintain your GraphQL schemas.

I hope this post has been helpful. If you have any questions, please feel free to leave a comment below.
Revolutionizing the Future: Introducing CIFDAQ’s AI-Powered Secured Blockchain Ecosystem
Tags: blockchain, ai, cryptocurrency
Published: 2023-09-05 07:26:42

In the rapidly evolving landscape of technology, innovation knows no bounds. Today, we stand on the brink of a new era where Artificial Intelligence and Blockchain converge to create a synergy that promises unparalleled security, transparency, and efficiency. Welcome to [Cifdaq](https://www.cifdaq.io/) an extraordinary AI-Powered Secured Blockchain Ecosystem that’s set to redefine the way we interact with digital systems.

Unveiling the Power of CIFDAQ:

At CIFDAQ, we’re creating a new ecosystem rather than just a platform. Our goal is to provide enterprises, organizations, and individuals with a cutting-edge solution that seamlessly combines blockchain and AI technology. The result? A world of possibilities where data is not only secure but also intelligently utilized for maximum impact.

The Fusion of AI and Blockchain:

Imagine a world where every transaction, every piece of data, and every interaction is powered by advanced AI algorithms and safeguarded by the immutability of Blockchain. CIFDAQ brings this vision to life. By combining the power of blockchain and AI, we can build a dynamic ecosystem that goes beyond current constraints.

Key Features that Redefine the Norms:

Unparalleled Security: The heart of CIFDAQ lies in its security measures. With Blockchain’s decentralized ledger, every piece of information is encrypted and stored across a network of nodes, eliminating the risks of central points of failure. The integration of AI further fortifies this security, ensuring proactive threat detection and adaptive defense mechanisms.

Transparency and Trust: Our ecosystem is built on the foundation of transparency. Every action, from data sharing to transactions, is recorded on an unalterable Blockchain, fostering trust among all participants. AI-driven analytics empower users to gain insights from the data they generate, transforming it into actionable knowledge.

Efficiency and Scalability: CIFDAQ isn’t just about security; it’s about efficiency too. With Blockchain’s inherent capacity for facilitating peer-to-peer transactions and AI’s ability to optimize processes, our ecosystem offers unparalleled efficiency. As demands grow, our system dynamically scales, ensuring seamless performance.

Embarking on a Journey of Innovation:

As we unveil CIFDAQ to the world, we’re inviting you to join us on this transformative journey. From industries seeking secure supply chains to financial sectors craving frictionless transactions, CIFDAQ caters to diverse needs with a singular focus on innovation and excellence.

Stay tuned as we search deeper into the intricacies of CIFDAQ’s AI-powered intelligence, the robustness of its Blockchain architecture, and the limitless possibilities it brings to the table. Together, let’s revolutionize the way we interact, transact, and secure our digital future.

Be part of the AI-powered revolution. Be part of CIFDAQ.
Thông tin chi tiết về găng tay chống tĩnh điện
Tags: webdev
Published: 2023-09-05 07:13:51

## **_[Găng tay tĩnh điện](https://thienbang.com/gang-tay-cao-su-chong-tinh-dien) là loại găng như thế nào?_**

Chống tĩnh điện là quá trình đối phó với sự tích tụ điện trong các tình huống mà sự ma sát hoặc tiếp xúc (như cầm, nắm, hoặc chạm) tạo ra các điện tích dương và âm. Các điện tích này thường tồn tại trên các vật liệu tĩnh điện và có thể gây ra hiện tượng phát ra điện và trung hòa khi chúng tiếp xúc với các vật thể mang điện trái dấu. 

Tình trạng này có thể dẫn đến những hậu quả nghiêm trọng trong quá trình làm việc, như hỏng chập mạch trên bảng mạch của các thiết bị điện tử hoặc thậm chí gây cháy nổ trong môi trường có dầu và xăng dễ bén lửa.


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/a7mimh19o9gxvh6ttrtm.jpg)

Tác động của tình trạng tĩnh điện đối với sức khỏe của con người là một vấn đề quan trọng. Những vật thể tích tụ tĩnh điện lớn có thể tạo ra một điện trường mạnh mẽ xung quanh môi trường xung quanh.

## **Đặc điểm của găng tay chống tĩnh điện

**
Găng tay chống tĩnh điện được coi là một phần quan trọng của thiết bị bảo hộ lao động và thường được sử dụng trong các lĩnh vực như lắp ráp linh kiện điện tử, sản xuất bán dẫn, máy tính, thử nghiệm hóa học và nhiều ứng dụng khác.

Các loại găng tay chống tĩnh điện thường được chế tạo từ vải polyester bền bỉ, kết hợp với sợi carbon chống tĩnh điện theo tiêu chuẩn phòng sạch. Điều này đảm bảo cảm giác thoải mái cho người sử dụng và làm giảm nguy cơ tích tụ tĩnh điện. 


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/1cu1it7118fxahi8vt00.jpg)

Ngoài ra, găng tay chống tĩnh điện không chỉ phù hợp cho các môi trường công nghiệp, mà còn có thể sử dụng trong các lĩnh vực khác như y học, nghiên cứu khoa học, sinh học và thực vật học. Ty cung cấp cả bao ngón tay cao su và găng tay phòng sạch chất lượng cao đạt tiêu chuẩn quốc tế để đáp ứng nhu cầu đa dạng của khách hàng.

## **Tác dụng của găng tay chống tĩnh điện**

- Găng tay chống tĩnh điện, mặc dù không trực tiếp tham gia vào quá trình sản xuất và tạo ra sản phẩm, nhưng lại đóng vai trò quan trọng trong việc bảo vệ người lao động khỏi các nguy cơ nguy hiểm. 

- Chúng không chỉ đảm bảo tính thẩm mỹ bằng cách tránh các vết bỏng và cháy trong quá trình hàn, bắt vít, lắp ráp linh kiện điện tử, mà còn có tác dụng lâu dài trong việc ngăn ngừa nhiễm điện từ trường, một nguyên nhân gây ra nhiều căn bệnh nguy hiểm.

- Găng tay phủ PU ở đầu ngón chống tĩnh điện cải thiện việc cầm nắm bằng cách tăng cường độ bám ở lòng bàn tay, ngăn chặn sự mài mòn của sản phẩm, và đặc biệt, chống thấm nước và dầu mỡ.

- Với khả năng chống trầy xước, mang lại sự thoải mái và dễ dàng trong thao tác khi đeo. Chúng không gây dị ứng cho da và giữ cho bàn tay thoáng mát.

- Thiết kế gọn gàng, tính thẩm mỹ cao, sử dụng vải chống tĩnh điện và đường may tinh tế chuẩn xác. Giá bán của găng tay chống tĩnh điện cũng hợp lý, phù hợp với mọi người.

Trên đây là một số đặc điểm của găng tay bảo hộ chống tĩnh điện, hy vọng điều đó sẽ giúp ích phần nào cho các bạn trong quá trình tìm hiểu thông tin.
HackerRank 30 Days of Code Solution Day 4: Class vs. Instance
Tags: algorithms, beginners, programming, codenewbie
Published: 2023-09-05 07:02:03

In this tutorial, we will guide you through the process of solving the **Day 4: Class Vs. Instance** programming problem from HackerRank’s “ **30 Days of Code** ” challenge.

We will provide comprehensive code solutions in C++, Python, and JavaScript programming languages. With our help, you will gain a better understanding of the problem and learn how to approach and solve similar coding challenges.

**Disclaimer:** We encourage you to solve this challenge yourself before reading our tutorial. We have provided a detailed explanation of the problem and our solutions to help you check your work.

## Hackerrank 30 days of code - Day 4: Class vs. Instance

It’s part of Hackerank’s 30 days of code. A series of 30-day programming challenges. Where you can learn new programming languages by solving the coding challenges.

## Problem Statement and Explanation

In this problem, we will learn the difference between class and instance using object-oriented programming. we will return the following string based on the following conditions:

- If the age is 0 or less, we will print `Age is not valid, setting age to 0.` and set the age to 0.
- There are 3 conditions to check the age: 
  - If the age is less than 13, we will print `You are young.`
  - If the age is greater than or equal to 13 and less than 18, we will print `You are a teenager.`
  - Otherwise, we will print `You are old.`
- There will be two methods: 
  - `amIOld()` method to check if the person is old or not.
  - `yearPasses()` method to increment the age of the person.

The `Person` class is provided in the editor. We have to write the following methods inside the class:

### Operators Hackerrank solution in Python

{% gist https://gist.github.com/codeperfectplus/7b04da8718ef8e7085889d001b78ed02.js %}
### Operators Hackerrank solution in JavaScript

{% gist https://gist.github.com/codeperfectplus/1a879b79c1587f852d5f1b97283c400d.js %}
## Test Case of Class vs. Instance Hackerrank Solution

Tested on the Hackerrank platform for the following test case and passed all the test cases. Enclosed below is the screenshot of the test case.

![class vs instance](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/yp4iww2bssw2d0zuu3pz.png)


_Problem statement is taken from [Hackerrank](https://www.hackerrank.com/domains/tutorials/30-days-of-code), and the solutions are implemented by **CodePerfectPlus** team_
How Does It Feel When Your Code Works?
Tags: discuss, watercooler
Published: 2023-09-05 07:00:00

_Step into our coding showcase series, where you can elevate your projects, exhibit your coding prowess, and collaborate with like-minded developers._

Express the joy of successfully debugging or completing code, sparking conversations about coding accomplishments. Use an image, a word, an emoji, a song, or anything else that captures the exhilaration of successfully debugging or completing code.

Follow the DEVteam for more discussions and online camaraderie!

{% embed [https://dev.to/devteam](https://dev.to/devteam) %}
Rubyist Hangout Thread
Tags: ruby, discuss, watercooler
Published: 2023-09-05 07:00:00

Hello, everyone. welcome to our weekly Ruby enthusiasts' gathering!

Ruby is a language that's stood strong for 28 years – a true testament to its enduring excellence. But this isn't necessarily a Ruby-exclusive zone – our thread embraces all things within our community guidelines, whether it's Ruby-centric or not.

We'd love to hear from you on the following:

Spotlight a Fellow Member: 🌟 Is there a fellow Ruby aficionado whose accomplishments or contributions deserve recognition? Let's shine a light on one another's achievements!

Share an Intriguing Read: 📖 Stumbled upon a captivating article about Ruby, programming, or the tech realm? Share it with the community and let's kick off some thought-provoking discussions.

Current Buzz in the Sphere: 🌐 Is there an event, project, or recent development related to Ruby that you believe should be on everyone's radar? Let's keep each other in the loop.

So, what's catching your attention this week?
What Coding Quests Fill Your Day?
Tags: discuss, beginners, codenewbie, career
Published: 2023-09-05 07:00:00

_Join us in bridging the knowledge gap and fostering a stronger coding community. Your expertise can shape the next generation of developers. Let's do this together!_

Give us a sense of "a day in the life of...".

Follow the [CodeNewbie Org](https://dev.to/codenewbieteam) and [#codenewbie](https://dev.to/t/codenewbie) for more discussions and online camaraderie!

*{% embed* https://dev.to/codenewbieteam *%}*
Best Influencer Marketing Agency: best influencer marketing agency
Published: 2023-09-05 06:59:13

The[ best influencer marketing agency](https://www.excellentpublicity.com/services/influencer-marketing
![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/jn7rp7klvcffloar7fmf.jpg)) combines expertise in social media, creative content, and influencer partnerships to deliver impactful campaigns. They leverage data-driven strategies, authentic collaborations, and a deep understanding of target audiences to achieve brand goals. Their success lies in fostering genuine connections between influencers and brands, driving authentic engagement and measurable results.
As a newbie should i take the UI of my projects seriously
Tags: discuss, webdev, beginners
Published: 2023-09-05 06:48:06

When Im working on a new practice projects I  usually struggle with the user interface and buttons even if the aim of the projects is not the ui but the functionality. I am a newbie so i think i shouldn't be focusing on ui i should be looking at the functionality. what do you think??
Manual Testing Explanation, Benefits and Drawback with Example.
Published: 2023-09-05 06:42:26



## **Manual Testing**

Manual testing is a process of software testing in which we execute the test cases manually without using any automated testing tool. From the end user’s perspective, testers will execute the test cases manually. It tests whether the application is functioning as illustrated in the requirement document or not. 

Any new software application should be manually tested before performing the automation testing.


**Benefits of Manual Testing**

Manual testing detects almost every bug and issue of the software application.
Through manual testing, software testers can access visual components like layout, text, and other components. They can also identify the UX and UI issues.
It is suitable if we are making some unplanned changes to the applications as they can be adopted easily.
As we do not use any high-level skills or type of tools, it will have a low cost of operations.Test cases executed manually without tools.
Manual testing is great for small projects.


**Drawback of Manual Testing**

The primary disadvantage of manual testing is it is time-consuming.
Through manual testing, it is not easy to discover the color combination and size difference of the GUI objects.
Performance testing and Load testing are impossible in manual testing.
Requires human intervention for each test case.


**Example:  Car Washing Application**
Tester must check the application functionality before deploying the project. The following basic steps should be followed:

1.	Loging in to the "Car Wash" application with valid credentials or not.
2.	Home page is displaying the content as per the documents or not
3.	Locations, services, offers, etc...as per the documents its accessible or not. 
4.	User can able to select and book appropriate booking options or not.
5.	Provide valid and appropriate inputs for each field, ensuring data accuracy.
6. 	Save the booking details.


**Expected Result:**

1.	The booking details should be created successfully, and a confirmation message or notification should be displayed.
2.	The created booking should have accurate and consistent information as provided during services.
3.	The right information is presented in the frontend and backend.

In this scenario, testers need to have a list of basic details to enter. Manually entering a long list of data is exhausting, and may introduce human errors, so although manual testing is possible, having some supporting tools for these scenarios truly helps.
🚀 Boost Your Decision-Making Skills with This Simple Technique! 🎯
Tags: productivity, beginners, career
Published: 2023-09-05 06:31:33

Facing multiple options and uncertain about which one to choose?
Feel like one of them is better, but not sure why?

Try to formulate the reasoning anyway! I noticed that:

I encourage you to try something I've found incredibly helpful: Take a moment to verbally outline the pros and cons of each choice and explain why one seems superior. When you do this, you'll:

1. Gain a deeper understanding of the options at hand.
2. Prepare yourself with well-thought-out reasoning for any inquiries.
3. In the future, if your chosen option doesn't pan out as expected, you can revisit your initial rationale, refine it with newfound knowledge and experience, and make a more informed decision.

Give it a shot and let me know if it works for You as well!
Ubuntu Set System Network Proxy
Published: 2023-09-05 06:18:06

Install agent tools such as trojan and configure startup to obtain the port number

for example

```
10.10.1.10:8080
```

System Agent Settings

We will add a shell script file under/etc/profile.d/proxy.sh, which will ensure that the settings are applicable to all logged in users:

```
sudo vim  /etc/profile.d/proxy.sh
```

Write the following content in the document:

```
# set proxy config via profie.d - should apply for all users
export http_proxy="http://10.10.1.10:8080/"
export https_proxy="http://10.10.1.10:8080/"
export ftp_proxy="http://10.10.1.10:8080/"
export no_proxy="127.0.0.1,localhost"
# For curl
export HTTP_PROXY="http://10.10.1.10:8080/"
export HTTPS_PROXY="http://10.10.1.10:8080/"
export FTP_PROXY="http://10.10.1.10:8080/"
export NO_PROXY="127.0.0.1,localhost"
```
Add execution permissions for this file:

```
sudo chmod +x  /etc/profile.d/proxy.sh
```
Activate the file to start using proxy settings, or log out and log in again:

```
source /etc/profile.d/proxy.sh
#Check the environment variables to confirm if they are effective
env | grep -i proxy
```


Clear Network Proxy when you don't need it any more.

```
unset http_proxy

unset https_proxy

unset HTTP_PROXY

unset HTTPS_PROXY
```