4 Summary: A simple framework for building complex web applications.
5 Maintainer-email: Pallets <contact@palletsprojects.com>
7 Description-Content-Type: text/x-rst
8 Classifier: Development Status :: 5 - Production/Stable
9 Classifier: Environment :: Web Environment
10 Classifier: Framework :: Flask
11 Classifier: Intended Audience :: Developers
12 Classifier: License :: OSI Approved :: BSD License
13 Classifier: Operating System :: OS Independent
14 Classifier: Programming Language :: Python
15 Classifier: Topic :: Internet :: WWW/HTTP :: Dynamic Content
16 Classifier: Topic :: Internet :: WWW/HTTP :: WSGI
17 Classifier: Topic :: Internet :: WWW/HTTP :: WSGI :: Application
18 Classifier: Topic :: Software Development :: Libraries :: Application Frameworks
19 Requires-Dist: Werkzeug>=3.0.0
20 Requires-Dist: Jinja2>=3.1.2
21 Requires-Dist: itsdangerous>=2.1.2
22 Requires-Dist: click>=8.1.3
23 Requires-Dist: blinker>=1.6.2
24 Requires-Dist: importlib-metadata>=3.6.0; python_version < '3.10'
25 Requires-Dist: asgiref>=3.2 ; extra == "async"
26 Requires-Dist: python-dotenv ; extra == "dotenv"
27 Project-URL: Changes, https://flask.palletsprojects.com/changes/
28 Project-URL: Chat, https://discord.gg/pallets
29 Project-URL: Documentation, https://flask.palletsprojects.com/
30 Project-URL: Donate, https://palletsprojects.com/donate
31 Project-URL: Issue Tracker, https://github.com/pallets/flask/issues/
32 Project-URL: Source Code, https://github.com/pallets/flask/
34 Provides-Extra: dotenv
39 Flask is a lightweight `WSGI`_ web application framework. It is designed
40 to make getting started quick and easy, with the ability to scale up to
41 complex applications. It began as a simple wrapper around `Werkzeug`_
42 and `Jinja`_ and has become one of the most popular Python web
43 application frameworks.
45 Flask offers suggestions, but doesn't enforce any dependencies or
46 project layout. It is up to the developer to choose the tools and
47 libraries they want to use. There are many extensions provided by the
48 community that make adding new functionality easy.
50 .. _WSGI: https://wsgi.readthedocs.io/
51 .. _Werkzeug: https://werkzeug.palletsprojects.com/
52 .. _Jinja: https://jinja.palletsprojects.com/
58 Install and update using `pip`_:
62 $ pip install -U Flask
64 .. _pip: https://pip.pypa.io/en/stable/getting-started/
70 .. code-block:: python
73 from flask import Flask
79 return "Hello, World!"
84 * Running on http://127.0.0.1:5000/ (Press CTRL+C to quit)
90 For guidance on setting up a development environment and how to make a
91 contribution to Flask, see the `contributing guidelines`_.
93 .. _contributing guidelines: https://github.com/pallets/flask/blob/main/CONTRIBUTING.rst
99 The Pallets organization develops and supports Flask and the libraries
100 it uses. In order to grow the community of contributors and users, and
101 allow the maintainers to devote more time to the projects, `please
104 .. _please donate today: https://palletsprojects.com/donate
110 - Documentation: https://flask.palletsprojects.com/
111 - Changes: https://flask.palletsprojects.com/changes/
112 - PyPI Releases: https://pypi.org/project/Flask/
113 - Source Code: https://github.com/pallets/flask/
114 - Issue Tracker: https://github.com/pallets/flask/issues/
115 - Chat: https://discord.gg/pallets