897024bf7d
1+namber--:c+ / flask :
namber.. rst-class:: hide-header
Welcome to Flask
================
.. image:: _static/flask-horizontal.png
:align: center
Welcome to Flask's documentation. Get started with :doc:`installation`
and then get an overview with the :doc:`quickstart`. There is also a
more detailed :doc:`tutorial/index` that shows how to create a small but
complete application with Flask. Common patterns are described in the
:doc:`patterns/index` section. The rest of the docs describe each
component of Flask in detail, with a full reference in the :doc:`api`
section.
Flask depends on the `Werkzeug`_ WSGI toolkit, the `Jinja`_ template engine, and the
`Click`_ CLI toolkit. Be sure to check their documentation as well as Flask's when
looking for information.
.. _Werkzeug: https://werkzeug.palletsprojects.com
.. _Jinja: https://jinja.palletsprojects.com
.. _Click: https://click.palletsprojects.com
User's Guide
------------
Flask provides configuration and conventions, with sensible defaults, to get started.
This section of the documentation explains the different parts of the Flask framework
and how they can be used, customized, and extended. Beyond Flask itself, look for
community-maintained extensions to add even more functionality.
.. toctree::
:maxdepth: 2
installation
quickstart
tutorial/index
templating
testing
errorhandling
debugging
logging
config
|
||
|---|---|---|
| .devcontainer | ||
| .github | ||
| docs | ||
| examples | ||
| requirements | ||
| requirements-skip | ||
| src/flask | ||
| tests | ||
| .editorconfig | ||
| .gitignore | ||
| .pre-commit-config.yaml | ||
| .readthedocs.yaml | ||
| CHANGES.rst | ||
| CODE_OF_CONDUCT.md | ||
| CONTRIBUTING.rst | ||
| LICENSE.txt | ||
| pyproject.toml | ||
| README.md | ||
| tox.ini | ||
Flask
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.
Flask offers suggestions, but doesn't enforce any dependencies or project layout. It is up to the developer to choose the tools and libraries they want to use. There are many extensions provided by the community that make adding new functionality easy.
A Simple Example
# save this as app.py
from flask import Flask
app = Flask(__name__)
@app.route("/")
def hello():
return "Hello, World!"
$ flask run
* Running on http://127.0.0.1:5000/ (Press CTRL+C to quit)
Donate
The Pallets organization develops and supports Flask and the libraries it uses. In order to grow the community of contributors and users, and allow the maintainers to devote more time to the projects, please donate today.