最近需要用到websocket類似的長連接
使用這個插件：https://github.com/miguelgrinberg/python-socketio
有類似的監(jiān)聽功能

客戶端安裝：
pip install "python-socketio[client]"
服務端安裝：
pip install python-socketio

客戶端代碼：

import socketio


def create_client():
    sio = socketio.Client()
    @sio.event
    def connect():
        print('connection established')
        sio.emit('client', {'foo': 'bar'})

    @sio.on('serve')
    def on_message(data):
        print('client received a message!',data)
    # @sio.event
    # def message(data):
    #     print('message received with ', data)
    #     sio.emit('client', {'response': 'my response'})

    @sio.event
    def connect_error():
        print("The connection failed!")
        sio.disconnect()

    @sio.event
    def disconnect():
        print('disconnected from server')
        sio.disconnect()

    sio.connect('http://localhost:5000')
    sio.wait()

create_client()

服務端代碼:

import eventlet
import socketio


def create_serve():
    sio = socketio.Server()
    app = socketio.WSGIApp(sio, static_files={
        '/': {'content_type': 'text/html', 'filename': 'index.html'}
    })
    @sio.event
    def connect(sid, environ):
        print('connect ', sid)
        sio.emit('serve', {'response': 'connert success'})

    # @sio.on('client')
    # def on_message(sid, data):
    #     print('serve received a message!111', data)
    @sio.on('client')
    def another_event(sid, data):
        print('serve received a message!', data)
    # @sio.event
    # def my_event(sid, data):
    #     print('message ', data)
    #     sio.emit('serve', {'response': 'connert success'})
    @sio.event
    def disconnect(sid):
        print('disconnect ', sid)
    if __name__ == '__main__':
        eventlet.wsgi.server(eventlet.listen(('', 5000)), app)

create_serve()

詳情看官方文檔：
https://python-socketio.readthedocs.io/en/latest/
end

————————————————————————————————————————————
自用連接：
https://python-socketio.readthedocs.io/en/latest/client.html
https://python-socketio.readthedocs.io/en/latest/server.html