To run your app by Flask
export FLASK_APP=my_app_name.pyThe enable the debugging mode
export FLASK_DEBUG=1Then you can simply type
flask runWhat is Flask?
Flask is a lightweight and versatile web framework for Python. It’s designed to be simple and easy to use, making it an excellent choice for building web applications, APIs (Application Programming Interfaces), and other web-related projects. Flask provides developers with the essential tools and libraries needed to create web applications, but it allows for flexibility and customization, so developers can add additional functionality as needed.
Key features of Flask include:
- Lightweight and Minimalistic: Flask is known for its simplicity and minimalism. It doesn’t impose any specific libraries or dependencies, allowing developers to choose the tools they need for their projects.
- Routing: Flask uses a simple routing mechanism to map URLs to Python functions, making it easy to define routes for different parts of your application.
- Jinja2 Templating: Flask integrates with Jinja2, a powerful and flexible templating engine for Python. Jinja2 allows developers to create dynamic HTML content by combining HTML templates with Python code.
- HTTP Request Handling: Flask provides easy-to-use APIs for handling HTTP requests and responses, making it straightforward to build RESTful APIs and web applications.
- Extension Ecosystem: Flask has a rich ecosystem of extensions that add additional functionality to the framework. These extensions cover a wide range of features, including authentication, database integration, form handling, and more.
Overall, Flask is a great choice for developers who want a simple yet powerful framework for building web applications in Python. Its flexibility and extensibility make it suitable for a wide range of projects, from small prototypes to large-scale web applications.
