Sanic¶
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!
Benchmarks¶
All tests were run on an AWS medium instance running ubuntu, using 1 process. Each script delivered a small JSON response and was tested with wrk using 100 connections. Pypy was tested for Falcon and Flask but did not speed up requests.
| Server | Implementation | Requests/sec | Avg Latency |
|---|---|---|---|
| Sanic | Python 3.5 + uvloop | 33,342 | 2.96ms |
| Wheezy | gunicorn + meinheld | 20,244 | 4.94ms |
| Falcon | gunicorn + meinheld | 18,972 | 5.27ms |
| Bottle | gunicorn + meinheld | 13,596 | 7.36ms |
| Flask | gunicorn + meinheld | 4,988 | 20.08ms |
| Kyoukai | Python 3.5 + uvloop | 3,889 | 27.44ms |
| Aiohttp | Python 3.5 + uvloop | 2,979 | 33.42ms |
| Tornado | Python 3.5 | 2,138 | 46.66ms |
Hello World Example¶
from sanic import Sanic
from sanic.response import json
app = Sanic()
@app.route("/")
async def test(request):
return json({"hello": "world"})
if __name__ == "__main__":
app.run(host="0.0.0.0", port=8000)
SSL Example¶
Optionally pass in an SSLContext:
import ssl
certificate = "/path/to/certificate"
keyfile = "/path/to/keyfile"
context = ssl.create_default_context(purpose=ssl.Purpose.CLIENT_AUTH)
context.load_cert_chain(certificate, keyfile=keyfile)
app.run(host="0.0.0.0", port=8443, ssl=context)
Installation¶
python -m pip install sanic
Documentation¶
Documentation can be found in the docs directory.
TODO¶
- Streamed file processing
- File output
- Examples of integrations with 3rd-party modules
- RESTful router
Limitations¶
- No wheels for uvloop and httptools on Windows :(
Final Thoughts¶
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