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A microframework based on uvloop, httptools, and learnings of flask

Project description

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Sanic is a Flask-like Python 3.5+ web server that’s written to go fast. It’s based on the work done by the amazing folks at magicstack, and was inspired by this article.

On top of being Flask-like, Sanic supports async request handlers. This means you can use the new shiny async/await syntax from Python 3.5, making your code non-blocking and speedy.

Sanic is developed on GitHub. Contributions are welcome!

If you have a project that utilizes Sanic make sure to comment on the issue that we use to track those projects!

Hello World Example

from sanic import Sanic
from sanic.response import json

app = Sanic()

async def test(request):
    return json({'hello': 'world'})

if __name__ == '__main__':'', port=8000)


  • pip install sanic

To install sanic without uvloop or ujson using bash, you can provide either or both of these environmental variables using any truthy string like ‘y’, ‘yes’, ‘t’, ‘true’, ‘on’, ‘1’ and setting the NO_X to true will stop that features installation.

  • SANIC_NO_UVLOOP=true SANIC_NO_UJSON=true pip install sanic


Non-Core examples. Examples of plugins and Sanic that are outside the scope of Sanic core.

Extensions. Sanic extensions created by the community.

Projects. Sanic in production use.


  • http2


  • No wheels for uvloop and httptools on Windows :(

Final Thoughts

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     ▀▀▀▀█████▌ ▀▐▄ ▀▐█ |   Gotta go fast!  |
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