据我了解，websocket是协议，socketio是实现该协议的库。
所以我决定从 python 转向，websocket-client因为python-socketio使用装饰器实现行为似乎更容易@sio.on('subject')。
我正在使用该connect方法的不同参数，但总是遇到错误。
使用sio.connect('ws://echo.websocket.org')或sio.connect('http://echo.websocket.org', transports=['websocket'])错误是：
Attempting polling connection to http://echo.websocket.org/socket.io/?transport=polling&EIO=3
Traceback (most recent call last):
File "/home/lucas/projects/python/py-websockets/client/test.py", line 6, in <module>
sio.connect('ws://echo.websocket.org')
File "/home/lucas/.virtualenvs/py-websockets/lib/python3.6/site-packages/socketio/client.py", line 210, in connect
six.raise_from(exceptions.ConnectionError(exc.args[0]), None)
File "<string>", line 3, in raise_from
socketio.exceptions.ConnectionError: Unexpected status code 404 in server response
因此，查看我尝试过的日志sio.connect('http://echo.websocket.org', transports=['websocket'], socketio_path='')，但只打印日志Attempting WebSocket connection to ws://echo.websocket.org//?transport=websocket&EIO=3，然后它进入某种无限循环并且永远不会返回。
这是我正在尝试的代码：
import socketio
sio = socketio.Client(logger=True, engineio_logger=True) …