current location:Home > Technical Articles > Backend Development

  • The dawn of Python basics: lighting up the programming path for beginners
    The dawn of Python basics: lighting up the programming path for beginners
    Basic variables in Python syntax: Containers used to store data, assigned using the = operator. Data types: Python supports a variety of data types, including numbers, strings, lists, tuples, and dictionaries. Conditional statements: used to control program flow, including if-else and while loops. Function: Used to encapsulate code blocks and have high reusability. Objects and Classes: Fundamental concepts of object-oriented programming that enable users to create custom data structures and behaviors. Programming example helloworld: the first Python program that prints "Hello, world!" Variables and Data Types: Shows variable declarations and different data types. Conditional statements: implement simple decision-making logic, such as parity judgment for specific numbers. recycle
    Python Tutorial . flask 756 2024-03-16 11:30:15
  • What is the main difference between c language and python?
    What is the main difference between c language and python?
    C language and Python are two completely different programming languages. They have significant differences in syntax, design concepts, performance and application fields. C language is a procedural language known for its simplicity and efficiency. It is mainly used for low-level system programming and scenarios with high performance requirements. Python is an interpreted language with clear and concise syntax, easy to use, and is widely used in fields such as data analysis, artificial intelligence, and web development.
    C#.Net Tutorial . flask 730 2024-03-14 16:44:50
  • What is the use of python programming?
    What is the use of python programming?
    Python is a versatile programming language that is widely used in various fields. Its uses include web development, data science and machine learning, automation scripting, scientific computing, game development, web scraping, desktop application development, and education and learning. Python's ease of use and rich library and tools make it an ideal choice for a variety of projects and tasks.
    Python Tutorial . flask 777 2024-03-14 15:54:49
  • The secret of asynchronous programming in Python: Achievements with coroutines
    The secret of asynchronous programming in Python: Achievements with coroutines
    Basics of Coroutines A coroutine function, also known as a generator function, is a special function that pauses its execution and returns a value. When it is time to continue execution, the coroutine function can use the yield statement to send a value to the caller and pause itself. The caller can later resume the execution of the coroutine function by calling the next() method to obtain the next value returned by the coroutine function. In python, a coroutine is declared by the asyncdef keyword and its execution is suspended using the await keyword. The await statement returns control to the event loop, allowing other coroutines or tasks to execute. When the suspended task is completed, the event loop will automatically resume the execution of the suspended coroutine function. Event Loop Event Loop is Pytho
    Python Tutorial . flask 630 2024-03-12 08:10:27
  • A detailed explanation of tag languages ​​other than PHP and their uses
    A detailed explanation of tag languages ​​other than PHP and their uses
    HTML and CSS HTML and CSS are common tag languages ​​in web development. HTML is used to define the structure of web pages, while CSS is used to control the style of web pages. Specifically, HTML uses various tags to represent different elements of a web page, such as titles, paragraphs, links, pictures, etc. CSS uses style rules to design the appearance of these elements, including color, font, size, layout, etc. Here's a simple HTML and CSS example: &lt
    PHP Tutorial . flask 1243 2024-03-11 13:40:01
  • Exception(\'oh no\') solution
    Exception(\'oh no\') solution
    The reason for the error "Exception("ohno")" is a common python exception, indicating that an exception occurred and the error message is "ohno". This exception may be due to an error in the program that prevents the program from continuing to execute. This error may be due to program coding errors, data errors, third-party library errors, or environment errors, etc. If this error occurs, you should find the cause of the error and modify the code to match expectations. For example, this may happen when customizing exceptions in flask: ifnotsome_check:raiseException("ohno") If the value of some_check is False,
    Python Tutorial . flask 1130 2024-03-02 13:00:04
  • Solution to prompt ValueError(\'not found\')
    Solution to prompt ValueError(\'not found\')
    Reason for the error This error message indicates that an error occurred when you were using flask. The error was raised by `ValueError`, which indicates that Flask cannot find something. This may be caused by you trying to access a configuration item that does not exist or some other reason. This error may be caused by you trying to access a configuration variable that does not exist, or accessing a variable or property that does not exist at run time. If this is caused by accessing a non-existent configuration variable, you may want to check your code to make sure you are accessing the correct configuration variable. If it is caused by accessing a variable or property that does not exist, then you need to check your code to make sure you are accessing an existing variable or property.
    Python Tutorial . flask 965 2024-03-01 12:04:11
  • flask有RuntimeError(f\'The environment variable {variable_name!r} is not set\'\' and as such configuration could not be loaded. Set\'\' this variable and make it point to a con
    flask有RuntimeError(f\'The environment variable {variable_name!r} is not set\'\' and as such configuration could not be loaded. Set\'\' this variable and make it point to a con
    Reason for the error This error message indicates that an error occurred when you used flask. The error was caused by `RuntimeError`, which indicates that Flask cannot load the configuration file because the environment variable is not set. Flask supports loading configuration files from environment variables. This error message tells you that the environment variables are not set or configured correctly, so the configuration file cannot be loaded. Determine what the environment variable name is based on your code, and then make sure the environment variable is set correctly and points to the configuration file. For example, in a Linux system, you can use this command to set environment variables: exportMY_APP_SETTINGS=/path/to/config.c
    Python Tutorial . flask 673 2024-03-01 09:19:36
  • Solve the problem of KeyboardInterrupt() error in flask
    Solve the problem of KeyboardInterrupt() error in flask
    The reason for the error: KeyboardInterrupt is a common exception in Python, which is triggered when the user presses the ctrl+c key combination in the terminal. In a flask application, if you press ctrl+c while running the application, it will cause the application to throw a KeyboardInterrupt exception and terminate the operation. In this case, this is not an error but a normal termination of the run. If you want to perform some cleanup operations in this situation, you can catch the KeyboardInterrupt exception in your application and perform the cleanup operations there. If you get KeyboardInterrupt when running flask's development server
    Python Tutorial . flask 1555 2024-02-29 18:52:02
  • Solution to fastapi error HTTPException(status_code=status.HTTP_401_UNAUTHORIZED,detail=\'Incorrect email or password\',headers={\'WWW-Authenticate\': \'Basic\'},)
    Solution to fastapi error HTTPException(status_code=status.HTTP_401_UNAUTHORIZED,detail=\'Incorrect email or password\',headers={\'WWW-Authenticate\': \'Basic\'},)
    The reason for the error: HttpException(status_code=status.HTTP_401_UNAUTHORIZED,detail="IncorrectemailorpassWord",headers={"WWW-Authenticate":"Basic"},) occurs in Fastapi in python because the email or password entered by the user is incorrect. Therefore, the server rejected the request and returned a 401Unauthorized status code. headers={"WWW-Authenticate":"Basic"}, indicating that the authentication method is
    Python Tutorial . flask 1591 2024-02-29 18:10:10
  • How to implement python online playback function
    How to implement python online playback function
    Implementation method: 1. Install the necessary libraries; 2. Create a simple web application; 3. Upload audio files; 4. Process audio files; 5. Provide online playback function; 6. Respond to playback requests.
    Python Tutorial . flask 1167 2024-02-29 10:28:01
  • Python Django vs. other frameworks: Choose the one that's right for you
    Python Django vs. other frameworks: Choose the one that's right for you
    Advantages of Django 1. Ease of use DjanGo is known for its ease of use. It has a simple API and clear documentation, making it easy for even beginners to get started. You can create a new Django project in just minutes and a fully functional website in a few hours. 2. Flexibility and scalability Django is a very flexible and scalable framework. It can be used to build various types of websites, from simple blogs to complex e-commerce websites. Django also supports a variety of databases, and you can choose the most appropriate database according to your needs. 3. Built-in security features Django has built-in security features to protect your website from attacks. These features include CSRF
    Python Tutorial . flask 1007 2024-02-27 21:10:02
  • so fast! Recognize video speech into text in just a few minutes with less than 10 lines of code
    so fast! Recognize video speech into text in just a few minutes with less than 10 lines of code
    Hello everyone, I am Kite. Two years ago, the need to convert audio and video files into text content was difficult to achieve, but now it can be easily solved in just a few minutes. It is said that in order to obtain training data, some companies have fully crawled videos on short video platforms such as Douyin and Kuaishou, and then extracted the audio from the videos and converted them into text form to be used as training corpus for big data models. If you need to convert a video or audio file to text, you can try this open source solution available today. For example, you can search for the specific time points when dialogues in film and television programs appear. Without further ado, let’s get to the point. Whisper is OpenAI’s open source Whisper. Of course it is written in Python. It only requires a few simple installation packages.
    AI . flask 880 2024-02-27 13:55:02
  • How to start rpc server
    How to start rpc server
    RPC (RemoteProcedureCall) is a mechanism used for communication between different processes or different network nodes. It allows a program to call a program or service on a remote computer as if it were a local call. Through RPC, remote execution across the network can be achieved, and the server's functions can be encapsulated into APIs that can be called by the client. This article will describe how to enable the RPC server. To enable an RPC server, different programming languages ​​and frameworks can be used to implement it. Below in Python
    Troubleshooting . flask 648 2024-02-25 18:21:06
  • In-depth analysis of Flask framework installation: Detailed explanation of the techniques for installing Flask framework to help you complete it smoothly
    In-depth analysis of Flask framework installation: Detailed explanation of the techniques for installing Flask framework to help you complete it smoothly
    Flask framework installation analysis: In-depth analysis of the installation details of the Flask framework to make your installation smoother. Specific code examples are required. Introduction: Flask is a popular Python Web development framework. It is simple and flexible and suitable for project development of various sizes. Before using the Flask framework, you first need to install and configure it. This article will deeply analyze the installation details of the Flask framework and provide readers with detailed steps and code examples to make your installation process smoother. 1. Install Python on your computer
    Python Tutorial . flask 640 2024-02-25 09:57:06

Tool Recommendations

jQuery enterprise message form contact code

jQuery enterprise message form contact code is a simple and practical enterprise message form and contact us introduction page code.
form button
2024-02-29

HTML5 MP3 music box playback effects

HTML5 MP3 music box playback special effect is an mp3 music player based on HTML5 css3 to create cute music box emoticons and click the switch button.

HTML5 cool particle animation navigation menu special effects

HTML5 cool particle animation navigation menu special effect is a special effect that changes color when the navigation menu is hovered by the mouse.
Menu navigation
2024-02-29

jQuery visual form drag and drop editing code

jQuery visual form drag and drop editing code is a visual form based on jQuery and bootstrap framework.
form button
2024-02-29

Organic fruit and vegetable supplier web template Bootstrap5

An organic fruit and vegetable supplier web template-Bootstrap5
Bootstrap template
2023-02-03

Bootstrap3 multifunctional data information background management responsive web page template-Novus

Bootstrap3 multifunctional data information background management responsive web page template-Novus
backend template
2023-02-02

Real estate resource service platform web page template Bootstrap5

Real estate resource service platform web page template Bootstrap5
Bootstrap template
2023-02-02

Simple resume information web template Bootstrap4

Simple resume information web template Bootstrap4
Bootstrap template
2023-02-02

Cute summer elements vector material (EPS PNG)

This is a cute summer element vector material, including the sun, sun hat, coconut tree, bikini, airplane, watermelon, ice cream, ice cream, cold drink, swimming ring, flip-flops, pineapple, conch, shell, starfish, crab, Lemons, sunscreen, sunglasses, etc., the materials are provided in EPS and PNG formats, including JPG previews.
PNG material
2024-05-09

Four red 2023 graduation badges vector material (AI EPS PNG)

This is a red 2023 graduation badge vector material, four in total, available in AI, EPS and PNG formats, including JPG preview.
PNG material
2024-02-29

Singing bird and cart filled with flowers design spring banner vector material (AI EPS)

This is a spring banner vector material designed with singing birds and a cart full of flowers. It is available in AI and EPS formats, including JPG preview.
banner picture
2024-02-29

Golden graduation cap vector material (EPS PNG)

This is a golden graduation cap vector material, available in EPS and PNG formats, including JPG preview.
PNG material
2024-02-27

Home Decor Cleaning and Repair Service Company Website Template

Home Decoration Cleaning and Maintenance Service Company Website Template is a website template download suitable for promotional websites that provide home decoration, cleaning, maintenance and other service organizations. Tip: This template calls the Google font library, and the page may open slowly.
Front-end template
2024-05-09

Fresh color personal resume guide page template

Fresh color matching personal job application resume guide page template is a personal job search resume work display guide page web template download suitable for fresh color matching style. Tip: This template calls the Google font library, and the page may open slowly.
Front-end template
2024-02-29

Designer Creative Job Resume Web Template

Designer Creative Job Resume Web Template is a downloadable web template for personal job resume display suitable for various designer positions. Tip: This template calls the Google font library, and the page may open slowly.
Front-end template
2024-02-28

Modern engineering construction company website template

The modern engineering and construction company website template is a downloadable website template suitable for promotion of the engineering and construction service industry. Tip: This template calls the Google font library, and the page may open slowly.
Front-end template
2024-02-28