teleren/devto huggingface dataset:
How to Convert Python File To Exe
Tags: python
Published: 2023-04-12 10:40:30

To convert a Python file to an executable (.exe) file, you can use a tool called PyInstaller. PyInstaller is a powerful and easy-to-use tool that can convert Python scripts into standalone executables that can run on any machine without the need for Python or any additional libraries to be installed. Here are the steps:

## 1. Install PyInstaller:

You can install PyInstaller using pip by running the following command in your terminal or command prompt:

`pip install pyinstaller`

Navigate to the directory where your Python script is located.

## 2. Run PyInstaller: 

To convert your Python script to an executable, run the following command:

`pyinstaller --onefile your_script_name.py`

Replace your_script_name.py with the name of your Python script. The --onefile option tells PyInstaller to create a single executable file.

## 3. Wait for PyInstaller to finish: 

PyInstaller will now analyze your script and create a standalone executable file. This may take a few moments depending on the size of your script and the number of dependencies it has.

## 4. Locate your executable: 

Once PyInstaller is done, you can find your executable file in the dist directory in your project folder. The name of the executable file will be the same as your Python script, but with a .exe extension.

Note: When running your executable on another machine, make sure that the target machine has the necessary dependencies installed. If you encounter any issues, you can try including the necessary dependencies in your PyInstaller command.
Tout savoir sur les composants React ⚛️
Tags: react, beginners, french, debutant
Published: 2023-04-12 10:35:01

Les applications React sont constituées de **composants**. 

Un composant est un élément qui possède sa propre logique - il est **autonome** et **réutilisable** - et sa propre apparence. 

Grâce aux composants, il est possible de **décomposer** une application web en plusieurs parties, ce qui rend le code **plus gérable** et plus facile à entretenir.

## Comment définir un composant ?

### On crée un nouveau fichier et on exporte notre composant

Tout d'abord, créez un nouveau fichier dans lequel se trouvera votre composant.

![création d'un fichier MonComposant.js](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/wmxnosziupcilqvxv0zf.png)

Vous pouvez l'exporter de deux manières :
Soit on écrit une fonction qui contiendra notre composant, puis on l'exporte plus bas.
```jsx
import React from 'react';

function MonComposant() {
// contenu de mon composant
}

export default MonComposant;
```

Soit on utilise la syntaxe `export` devant la fonction.
```jsx
export function MonComposant() {
  // contenu de mon composant
}
```

### On définit la fonction

<mark>Pourquoi les composants React commencent-ils par une majuscule ?</mark>

Ceci permet de différencier les composants des éléments HTML natifs de React.

Par exemple, la syntaxe  `<button></button>` affichera un bouton ordinaire, tandis que `<Button></Button>` peut être utilisé comme un nom de composant.

Voici un exemple de composant React : 

```jsx
import React from 'react';

function MonComposant() {
// écrivez des instructions ici si nécessaire
const name = "Claire"
// on retourne un élément JSX représentant l'interface utilisateur
  return (
    <div>
      <h1>Je m'appelle {name} et j'adore React!</h1>
    </div>
  );
}

export default MonComposant;
```

<mark>Comment organiser mes composants correctement ?</mark>

## Le _nesting_ (ou imbrication)

**L'imbrication** consiste à incorporer des composants "enfants" à l'intérieur d'un composant "parent" pour créer des interfaces utilisateur complexes.

C'est une bonne pratique pour créer des composants **réutilisables** et faciles à **maintenir**.

Dans l'exemple ci-dessous, j'imbrique `ChildComponent` à `ParentComponent` grâce à des balises HTML.

```jsx
import React from 'react';

function ParentComponent() {
  return (
     <div>
      <h1>Je m'appelle {name} et j'adore React!</h1>
      <ChildComponent/>
    </div>
  );
}

function ChildComponent() {
  return (
    <div>
      <p>Je suis un composant enfant.</p>
    </div>
  );
}

export default ParentComponent;
```

Cet exemple est court, il est donc inutile de créer deux composants distincts dans ce cas. Mais cette méthode devient très pratique quand notre code est plus long et complexe, et que l'on veut afficher de multiples éléments dans une application.

_Pour aller plus loin et utiliser React de manière plus performante, je vous conseille de lire [cet article](https://dev.to/kureru/les-hooks-de-react-pour-debutants-3kh7) sur les Hooks, qui est un autre concept central de React._
Terrafrom Sketch Notes | What is Terraform | Part -1
Tags: terraform, beginners
Published: 2023-04-12 10:32:24

Terraform is an open-source infrastructure as code (IaC) software tool created by HashiCorp. It allows developers to define and provision infrastructure resources across multiple cloud providers, such as Amazon Web Services (AWS), Microsoft Azure, and Google Cloud Platform (GCP), as well as on-premises data centers in human-readable configuration files that you can version, reuse, and share. 


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/sxdpclo0hpq35kewbr4d.png)

It is written in go language. 

@Rahulcloud2023
Virtual Index
Tags: opengauss
Published: 2023-04-12 10:17:47

The virtual index function allows users to directly perform operations in the database. This function simulates the creation of a real index to avoid the time and space overhead required for creating a real index. Based on the virtual index, users can evaluate the impact of the index on the specified query statement by using the optimizer.

This function involves the following APIs:

Table 1 Virtual index function APIs

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/377p91p3n53qxwajqdjp.png)

This function involves the following GUC parameters:

Table 2 GUC parameters of the virtual index function

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/ir6ocnwl38e7lub81uxi.png)

**Procedure**
1. Use the **hypopg_create_index **function to create a virtual index. For example:

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/pggw383s1c6progw5lfb.png)

2. Enable the GUC parameter **enable_hypo_index**. This parameter controls whether the database optimizer considers the created virtual index when executing the EXPLAIN statement. By executing EXPLAIN on a specific query statement, you can evaluate whether the index can improve the execution efficiency of the query statement based on the execution plan provided by the optimizer. For example:

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/0rnu5mp08ny2z5jl9nci.png)

Before enabling the GUC parameter, run **EXPLAIN **and the query statement.

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/5l4mv2jaccumo8iqa0cf.png)

After enabling the GUC parameter, run **EXPLAIN **and the query statement.

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/fy2gwgff0ieczy2hvz28.png)

By comparing the two execution plans, you can find that the index may reduce the execution cost of the specified query statement. Then, you can consider creating a real index.

3. (Optional) Use the **hypopg_display_index **function to display all created virtual indexes. For example:

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/3gath1z7bum3vtygl8yu.png)

4. (Optional) Use the **hypopg_estimate_size **function to estimate the space (in bytes) required for creating a virtual index. For example:

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/kwdy5gyjxg8iq5c2n7me.png)

5. Delete the virtual index.

Use the **hypopg_drop_index **function to delete the virtual index of a specified OID. For example:

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/jgful54kcnsa73skrqot.png)

Use the **hypopg_reset_index **function to clear all created virtual indexes at a time. For example:

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/tzlkqr9dlqi54deseo4z.png)

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/updcqkgr5twht04kiigk.png)
The Advancements in 3D Printing Technology
Published: 2023-04-12 09:47:29

3D printing technology has come a long way since its inception. Originally developed as a way to create simple plastic prototypes, 3D printing technology is now capable of producing complex objects in a wide range of materials.([smart代理](https://www.smartproxy.cn/))

One of the key advancements in 3D printing technology is its ability to produce objects with multiple materials. This means that objects can be created with a combination of metals, plastics, and even organic materials such as cells and tissues. This has led to the development of 3D printed organs for medical research and even the possibility of 3D printing replacement organs for transplant patients.（[smart海外ip](https://www.smartproxy.cn/)）

Another area where 3D printing technology has advanced is in its speed and precision. New 3D printing technologies such as continuous liquid interface production (CLIP) are capable of producing objects at speeds that are 25-100 times faster than traditional 3D printing methods. In addition, advancements in software and hardware have improved the precision and accuracy of 3D printed objects.

Finally, 3D printing technology has also become more accessible and affordable. With the rise of desktop 3D printers, individuals and small businesses can now create their own prototypes and even produce small-scale production runs. This has democratized the manufacturing process and opened up new opportunities for innovation and entrepreneurship.

Despite these advancements, there are still challenges that need to be addressed. For example, 3D printing technology currently struggles with scalability and the production of large-scale objects. However, as the technology continues to evolve, it is likely that these challenges will be overcome.（[smartproxy](https://www.smartproxy.cn/)）

Overall, the advancements in 3D printing technology have opened up new possibilities for innovation and manufacturing. From creating replacement organs to producing custom jewelry, 3D printing technology is revolutionizing the way we think about design and production.
Single-query Index Recommendation
Tags: opengauss
Published: 2023-04-12 10:05:30

The single-query index recommendation function allows users to directly perform operations in the database. This function generates recommended indexes for a single query statement entered by users based on the semantic information of the query statement and the statistics of the database. This function involves the following interfaces:

Table 1 Single-query index recommendation APIs

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/c2gp28xxobw1q1vv76ei.png)

**Application Scenarios**
Use the preceding function to obtain the recommendation index generated for the query. The recommendation result consists of the table name and column name of the index.

For example:

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/qlnle5tg3iyepa1m761w.png)

The preceding information indicates that an index should be created on the **c_w_id** column of the **bmsql_customer** table. You can run the following SQL statement to create an index:

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/32cetlkjps8v4szem8pf.png)

Some SQL statements may also be recommended to create a join index, for example:

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/k223i0ohavexku3kt0dd.png)

The preceding statement indicates that a join index (age, sex) needs to be created in the **t1 **table. You can run the following command to create a join index:

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/oupfl4zntqsymypebiwu.png)

You can recommend specific index types for partitioned tables. For example:

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/7stx18r844v66k29r85r.png)

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/x62tjhpc0ouk1eswtvh7.png)
Components that Support DBMind-Prometheus Exporter-Usage Guide
Tags: opengauss
Published: 2023-04-12 09:50:55

You can run the gs_dbmind command to start an exporter. The following describes how to set up a complete Prometheus monitoring platform.

1. Run the following command to start Prometheus and all exporters:

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/nd45sfyrd1k7v3j7y1nc.png)

For details about how to start Prometheus and each exporter, see the following steps. If you use only the automatic deployment tool to deploy Prometheus, go to 6.

2. Run the following command to deploy the Prometheus main process:

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/peiy5439908t57jznpxf.png)

3. Deploy openGauss-exporter. Run the following command to start openGauss-exporter, use the default listening port number 9187, set the listening IP address to 192.168.1.100, and disable HTTPS:

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/s45dvlb0m9my3c0rx41u.png)

4. Deploy reprocessing-exporter. Run the following command to start reprocessing-exporter, use the default listening port number 8181, set the listening IP address to 192.168.1.101, the IP address and port number of the Prometheus server to 192.168.1.100 and 9090, and disable HTTPS:

gs_dbmind component reprocessing_exporter 192.168.1.100 9090 --web.listen-address 192.168.1.101 --ssl-keyfile server.key --ssl-certfile server.crt 

5. Deploy cmd-exporter: Start cmd-exporter, use the default parameters, and specify the certificate information.

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/f9hqiaz85x2vtz2sfgl4.png)

6. Deploy node-exporter. Generally, node-exporter needs to be deployed on the Prometheus monitoring platform to monitor the Linux OS. Some AI functions mentioned in the following sections also depend on node-exporter to collect Linux system metrics. Therefore, node-exporter also needs to be deployed by users. For details, visit https://prometheus.io/docs/guides/node-exporter/#installing-and-running-the-node-exporter.

You can run the node-exporter process. The default port number is 9100. The command for starting the process is as follows:

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/7nkpd6mcoqc0duch0q75.png)

7. You can run commands to monitor the running status of Prometheus and all exporters.

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/4klscrw88mf2rmzlb6rs.png)
How to add a caption to an image using Python code?
Tags: python, programming
Published: 2023-04-12 09:18:36

Here is an example Python code using the Pillow library to add a caption to an image:

```
from PIL import Image, ImageDraw, ImageFont

# Open the image
image = Image.open("img_example.jpg")

# Define font and font size
font = ImageFont.truetype("Waree-Bold.ttf", 120)

# Define text
text = "Caption Example"

# Create a draw object
draw = ImageDraw.Draw(image)

# Calculate text size
text_size = draw.textsize(text, font=font)

# Calculate text position
x = image.width // 2 - text_size[0] // 2
y = image.height - 240 - text_size[1] // 2

# Draw text on image
draw.text((x, y), text, fill='white', font=font)

# Save the new image with the caption
image.save("img_example_with_caption.jpg")
```

This code opens an image file named "img_example.jpg", adds the caption "Caption Example" at the bottom center of the image, and saves the new image as "img_example_with_caption.jpg". 

You can customize the font, font size, text, text color, and caption position to fit your specific needs.

To get a list of fonts on your system, run the following command: 

locate .ttf
5 Serverless Computing Misconceptions to avoid in 2023
Tags: devops
Published: 2023-04-12 09:08:32

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/rxaq7425kpfm5vjfhgam.png)
The Software Development Life Cycle is part of everyone’s life today, from developers to end users. For the same reason, DevOps and [Cloud Computing solution](https://cloudzenix.com/cloud-solutions) providers are exploring the soundbites concerning serverless computing. As serverless computing is evolving rapidly, it’s evident that people unaware of the technology provide a misguided assumption.

DevOps and Cloud Computing are influencing the world of tech globally. Several studies have been published on the internet that shed light on familiar and outdated misconceptions. Given that these misconceptions are quite a buzz in the realm of development, it does create myths related to technologies that don’t exist. However, these existing myths suggest serverless computing is fresh out of the oven.

[Serverless computing](https://cloudzenix.com/cloud-solutions/serverless-application-development/) and its application in the real world are constantly growing, and at times, it’s challenging to keep up with it. For people who are trying to leverage serverless computing to serve the needs of businesses better, this article is for them. Let’s bust some myths and misconceptions about serverless computing. Learn more: https://cloudzenix.com/5-serverless-computing-misconceptions-to-avoid-in-2023/
1D Array Revision by java
Tags: java, array
Published: 2023-04-12 08:51:22

Quickly, we will recap about 1D array and do some iterations on it

**Declaration**

>DataType nameOfArray [] = new DataType [lengthOfArray];


Example
`int array [] = new int [5];`

If I want to **access** an element in array 

> ArrayName[index]

`array[2];`

**Note that arrays is zero based:**

Array of length 5
The _1st_ element in array[0]
The _last_ element array[lengthOfArray-1] = array[4]

Example

```
int array [] = new int [5];
array [0] = 7;
array [1] = 23;
array [2] = 20;
array [3] = 17;
array [4] = 45;
```

`System.out.println( array[0] );        // will print 7`

looping on 1D array

```
For (int i=0 ; i<array.length();i++)
{
System.out.println(array[i] ) ;
}
```

## Great questions need some one to solve


**_1st and easy question_**

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/esd6lntp0n9oofgd9xai.png)


**_2nd question and easy too_**

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/k2ao0256kn4uyjkj477c.png)

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/aug8vwqakqblou1aqhvm.png)

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/i3766d2tq93r1nbpvay9.png)


**_last one but is medium !_**

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/zyedy9a5qha661v9vk36.png)


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/ji6nc4448b8sa876tir7.png)
How to create unique file names in bash shell
Tags: bash
Published: 2023-04-12 08:39:05

For debugging purposes, we had to profile a python program using `cProfile` which will create a `.prof` file with the profiled data. Also we wanted to create unique file names for each run using a bash shell.

We had couple of options:
- Use Unix epoch time which is a number and can be suffixed to a file to make it unique.
- Use `uuidgen` to create a GUID. Since it is for dev/debugging purposes, we wanted to shorten it and use only the last part of the GUID. I am quite aware that just using the last part may not be always unique, it is for some dev/debugging so it is okay for our purposes.

We will run through to how to generate a unique file name using both the methods below:

In the below script, we are using `$(date +"%s")` which provide the current date time as an epoch. The output is something like `test-1681287886.prof`

```bash
PROFILE_FILE=test-$(date +"%s").prof
echo ${PROFILE_FILE}
```

with the below script, we using a combination of `uuidgen` and piping it to `cut` to get the last part of GUID. The output is like `test-5F4C3E649454.prof`. With regards to the args for `cut`, `-d "-"` argument refers to using `-` as the delimiter and `-f5` argument refers to getting the 5th field from the array after splitting it

```bash
PROFILE_FILE=test-$(uuidgen | cut -d "-" -f5).prof
echo ${PROFILE_FILE}
```
Animated 3D Cuboid using CSS
Tags: codepen, html, beginners, css
Published: 2023-04-12 07:40:41

{% codepen https://codepen.io/FaltuCoderz/pen/PodrvoL %}

Hello Developers Community!

I am excited to share with you my latest project - an animated cuboidal box created using HTML and CSS. I wanted to create something that would help people better understand perspective, as I know that this can be a challenging concept for many developers.

With this project, you can see how the cuboidal box moves and changes shape as you interact with it, giving you a more intuitive understanding of how perspective works. It was a fun and challenging project to work on, and I hope that it will be a useful resource for many of you.

I also wanted to take a moment to express my gratitude for being a part of this community. As developers, we are always learning and growing, and it is wonderful to have a supportive community of like-minded individuals to connect with and learn from. Thank you for all of the knowledge and inspiration that you have provided me with, and I look forward to continuing to learn and grow with you all.

Cheers,
Arpit Singh :)