Sanic | Build fast. Run fast.

Sanic | Build fast. Run fast.

Build

Py310Test Py39Test Py38Test Py37Test

Docs

UserGuide Documentation

Package

PyPI PyPI version PyPI Wheel Supported implementations Code style black

Support

Forums Discord Awesome Sanic List

Stats

Downloads Downloads Downloads

Sanic is a Python 3.7+ web server and web framework that’s written to go fast. It allows the usage of the async/await syntax added in Python 3.5, which makes your code non-blocking and speedy.

Sanic is also ASGI compliant, so you can deploy it with an alternative ASGI webserver.

Source code on GitHub | Help and discussion board | User Guide | Chat on Discord

The project is maintained by the community, for the community. Contributions are welcome!

The goal of the project is to provide a simple way to get up and running a highly performant HTTP server that is easy to build, to expand, and ultimately to scale.

Installation

pip3 install sanic

Sanic makes use of uvloop and ujson to help with performance. If you do not want to use those packages, simply add an environmental variable SANIC_NO_UVLOOP=true or SANIC_NO_UJSON=true at install time.

$ export SANIC_NO_UVLOOP=true
$ export SANIC_NO_UJSON=true
$ pip3 install --no-binary :all: sanic

Note

If you are running on a clean install of Fedora 28 or above, please make sure you have the redhat-rpm-config package installed in case if you want to use sanic with ujson dependency.

Note

Windows support is currently β€œexperimental” and on a best-effort basis. Multiple workers are also not currently supported on Windows (see Issue #1517), but setting workers=1 should launch the server successfully.

Hello World Example

from sanic import Sanic
from sanic.response import json

app = Sanic("My Hello, world app")

@app.route('/')
async def test(request):
    return json({'hello': 'world'})

if __name__ == '__main__':
    app.run()

Sanic can now be easily run using sanic hello.app.

[2018-12-30 11:37:41 +0200] [13564] [INFO] Goin' Fast @ http://127.0.0.1:8000
[2018-12-30 11:37:41 +0200] [13564] [INFO] Starting worker [13564]

And, we can verify it is working: curl localhost:8000 -i

HTTP/1.1 200 OK
Connection: keep-alive
Keep-Alive: 5
Content-Length: 17
Content-Type: application/json

{"hello":"world"}

Now, let’s go build something fast!

Minimum Python version is 3.7. If you need Python 3.6 support, please use v20.12LTS.

Documentation

User Guide and API Documentation.

Changelog

Release Changelogs.

Questions and Discussion

Ask a question or join the conversation.

Contribution

We are always happy to have new contributions. We have marked issues good for anyone looking to get started, and welcome questions on the forums. Please take a look at our Contribution guidelines.

User Guide

To learn about using Sanic, checkout the User Guide.

API

Module Documentation