python 3.7异步示例
使用python 3.7,asyncio获得了以下类型的主要更新:
asyncio.AbstractEventLoop
asyncio.AbstractServer
这个示例演示了如何将SANIC与Python3.7结合使用,更准确地说:如何检索Asyncio服务器实例:
import asyncio
import socket
import os
from sanic import Sanic
from sanic.response import json
app = Sanic(__name__)
@app.route("/")
async def test(request):
return json({"hello": "world"})
server_socket = '/tmp/sanic.sock'
sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
try:
os.remove(server_socket)
finally:
sock.bind(server_socket)
if __name__ == "__main__":
loop = asyncio.get_event_loop()
srv_coro = app.create_server(
sock=sock,
return_asyncio_server=True,
asyncio_server_kwargs=dict(
start_serving=False
)
)
srv = loop.run_until_complete(srv_coro)
try:
assert srv.is_serving() is False
loop.run_until_complete(srv.start_serving())
assert srv.is_serving() is True
loop.run_until_complete(srv.serve_forever())
except KeyboardInterrupt:
srv.close()
loop.close()
请注意,uvloop还不支持这些功能。