Welcome to Flask — Flask Documentation (3.1.x)
Flask is a lightweight WSGI web application framework. It is designed to make getting started quick and easy, with the ability to scale up to complex applications. It began as a simple wrapper around Werkzeug and Jinja and has become one of the most popular Python web application frameworks.
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Website Key Features
Lightweight
Flask is a microframework that provides the bare essentials to build web applications, making it lightweight and easy to use.
Modular
Designed with extensions in mind, Flask allows for easy integration of additional functionalities as needed.
Jinja2 Templating
Flask uses Jinja2 as its template engine, offering a powerful way to generate dynamic HTML content.
Werkzeug WSGI Toolkit
Built on Werkzeug, Flask benefits from its robust WSGI utilities, making web application development more straightforward.
Development Server and Debugger
Flask includes a built-in development server and debugger, facilitating easier testing and debugging during the development phase.
RESTful Request Dispatching
Supports RESTful request dispatching, making it suitable for building APIs.
Secure Cookies Support
Flask supports secure cookies, enhancing the security of web applications.
Unit Testing Support
Comes with built-in support for unit testing, encouraging good development practices.
Extensive Documentation
Flask boasts comprehensive and well-organized documentation, making it accessible for beginners and experienced developers alike.
Additional information
License
Flask is licensed under a BSD-style license, making it free and open-source.
Community
Flask has a vibrant and active community, contributing to a rich ecosystem of extensions and resources.
Extensions
There are numerous extensions available for Flask, covering functionalities like form validation, object-relational mappers, authentication, and more.
Performance
While Flask is lightweight, it is capable of handling high-performance applications when properly optimized and scaled.
Use Cases
Flask is suitable for a wide range of web applications, from small projects to large-scale web services and APIs.
Learning Curve
Flask is known for its gentle learning curve, making it an excellent choice for beginners in web development.
HTTP headers
Security headers report is a very important part of user data protection. Learn more about http headers for flask.palletsprojects.com