import socketio sio = socketio.Client() @sio.event def connect(): print("connected to server") @sio.event def disconnect(reason): print("disconnected from server, reason:", reason) @sio.event def hello(a, b, c): print(a, b, c) if __name__ == "__main__": sio.connect("http://localhost:5000", auth={"token": "my-token"}) sio.wait()