Repository files navigation

Flask is a lightweightWSGI web application framework. It is designedto make getting started quick and easy, with the ability to scale up tocomplex applications. It began as a simple wrapper aroundWerkzeugandJinja and has become one of the most popular Python webapplication frameworks.

Flask offers suggestions, but doesn't enforce any dependencies orproject layout. It is up to the developer to choose the tools andlibraries they want to use. There are many extensions provided by thecommunity that make adding new functionality easy.

Install and update usingpip:

pip install -U Flask

fromflaskimportFlaskapp=Flask(__name__)@app.route("/")defhello():return"Hello, World!"

$ env FLASK_APP=hello.py flask run * Serving Flask app "hello" * Running on http://127.0.0.1:5000/ (Press CTRL+C to quit)

For guidance on setting up a development environment and how to make acontribution to Flask, see thecontributing guidelines.

The Pallets organization develops and supports Flask and the librariesit uses. In order to grow the community of contributors and users, andallow the maintainers to devote more time to the projects,pleasedonate today.

• Website:https://palletsprojects.com/p/flask/
• Documentation:https://flask.palletsprojects.com/
• Releases:https://pypi.org/project/Flask/
• Code:https://github.com/pallets/flask
• Issue tracker:https://github.com/pallets/flask/issues
• Test status:https://dev.azure.com/pallets/flask/_build
• Official chat:https://discord.gg/t6rrQZH