mirror of https://github.com/pallets/flask.git
46 lines
1.2 KiB
Markdown
46 lines
1.2 KiB
Markdown
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# Flask
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Flask is a lightweight [WSGI][] web application framework. It is designed
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to make getting started quick and easy, with the ability to scale up to
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complex applications. It began as a simple wrapper around [Werkzeug][]
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and [Jinja][], and has become one of the most popular Python web
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application frameworks.
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Flask offers suggestions, but doesn't enforce any dependencies or
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project layout. It is up to the developer to choose the tools and
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libraries they want to use. There are many extensions provided by the
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community that make adding new functionality easy.
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[WSGI]: https://wsgi.readthedocs.io/
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[Werkzeug]: https://werkzeug.palletsprojects.com/
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[Jinja]: https://jinja.palletsprojects.com/
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## A Simple Example
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```python
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# save this as app.py
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from flask import Flask
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app = Flask(__name__)
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@app.route("/")
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def hello():
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return "Hello, World!"
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```
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```
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$ flask run
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* Running on http://127.0.0.1:5000/ (Press CTRL+C to quit)
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```
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## Donate
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The Pallets organization develops and supports Flask and the libraries
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it uses. In order to grow the community of contributors and users, and
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allow the maintainers to devote more time to the projects, [please
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donate today][].
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[please donate today]: https://palletsprojects.com/donate
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