A Python asyncio web microframework with the same API as Flask
Project description
Quart is a Python web microframework based on Asyncio. It is intended to provide the easiest way to use the asyncio functionality in a web context, especially with existing Flask apps. This is possible as Quart has the same API as Flask.
Quart aims to be a complete web microframework, as it supports HTTP/1.1, HTTP/2 and websockets. Quart also aims to be very extendable and works with many of the Flask extensions, (hopefully Quart specific extensions will be written soon).
Quickstart
Quart can be installed via pip,
$ pip install quartand requires Python 3.6 or higher.
A minimal Quart example is,
from quart import Quart, websocket
app = Quart(__name__)
@app.route('/')
async def hello():
return 'hello'
@app.websocket('/ws')
async def ws():
while True:
await websocket.send('hello')
app.run()if the above is in a file called app.py it can be run as,
$ python app.pyTo deploy in a production setting see the deployment documentation.
Features
Quart has all the features required to serve webpages over HTTP. For those of you familar with Flask, Quart extends the Flask-API by adding support for,
HTTP/1.1 chunked transfer-encoded requests and pipelining.
Websockets.
HTTP/2, including the ability to server push.
Contributing
Quart is developed on GitLab. You are very welcome to open issues or propose merge requests.
Testing
Tox is best used test Quart,
$ pip install tox
$ toxthis will check the code style and run the tests.
Help
The Quart documentation is the best place to start, after that try opening an issue.
API Compatibility with Flask
The Flask API can be described as consisting of the Flask public and private APIs and Werkzeug upon which Flask is based. Quart is designed to be fully compatible with the Flask public API (aside from async and await keywords). Thereafter the aim is to be mostly compatible with the Flask private API and to provide no guarantees about the Werkzeug API.
Migrating from Flask
It should be possible to migrate to Quart from Flask by a find and replace of flask to quart and then adding async and await keywords. See the docs for full details.
Release history Release notifications | RSS feed
Download files
Download the file for your platform. If you're not sure which to choose, learn more about installing packages.
Source Distribution
Built Distribution
Hashes for Quart-0.5.0-py2.py3-none-any.whl
| Algorithm | Hash digest | |
|---|---|---|
| SHA256 | b81382493ee5612f2be7e1baafa7685a706b77773c046f8364c597aa54f1c8d1 |
|
| MD5 | 1d8e9feea70f1e675092455b51ac1c57 |
|
| BLAKE2b-256 | 4cf8e6c0f1178c897bcb9a62b135adb736e9a3081ca2e8c1e927bed364451c16 |
