- Supports both client and server side of HTTP protocol.
- Supports both client and server Web-Sockets out-of-the-box and avoids Callback Hell.
- Provides Web-server with middlewares and plugable routing.
To get something from the web:
import aiohttp import asyncio async def main(): async with aiohttp.ClientSession() as session: async with session.get('http://python.org') as response: print("Status:", response.status) print("Content-type:", response.headers['content-type']) html = await response.text() print("Body:", html[:15], "...") asyncio.run(main())
This prints:
Status: 200 Content-type: text/html; charset=utf-8 Body: <!doctype html> ...
Coming from requests ? Read why we need so many lines.
An example using a simple server:
# examples/server_simple.py from aiohttp import web async def handle(request): name = request.match_info.get('name', "Anonymous") text = "Hello, " + name return web.Response(text=text) async def wshandle(request): ws = web.WebSocketResponse() await ws.prepare(request) async for msg in ws: if msg.type == web.WSMsgType.text: await ws.send_str("Hello, {}".format(msg.data)) elif msg.type == web.WSMsgType.binary: await ws.send_bytes(msg.data) elif msg.type == web.WSMsgType.close: break return ws app = web.Application() app.add_routes([web.get('/', handle), web.get('/echo', wshandle), web.get('/{name}', handle)]) if __name__ == '__main__': web.run_app(app)
https://aiohttp.readthedocs.io/
https://github.com/aio-libs/aiohttp-demos
Feel free to make a Pull Request for adding your link to these pages!
aio-libs discourse group: https://aio-libs.discourse.group
gitter chat https://gitter.im/aio-libs/Lobby
We support Stack Overflow. Please add aiohttp tag to your question there.
- Python >= 3.7
- async-timeout
- charset-normalizer
- multidict
- yarl
- frozenlist
Optionally you may install the cChardet and aiodns libraries (highly recommended for sake of speed).
aiohttp is offered under the Apache 2 license.
The aiohttp community would like to thank Keepsafe (https://www.getkeepsafe.com) for its support in the early days of the project.
The latest developer version is available in a GitHub repository: https://github.com/aio-libs/aiohttp
If you are interested in efficiency, the AsyncIO community maintains a list of benchmarks on the official wiki: https://github.com/python/asyncio/wiki/Benchmarks