Error in handling protocol

[Seraphli]

https://github.com/Lawouach/WebSocket-for-Python/blob/7f43f2a6bff1aabafad023652042439d7b9b8d84/ws4py/client/init.py#L312-L316

The value will be b'chat' if using same handshake information like the one on wiki. So using join will result in TypeError: sequence item 0: expected str instance, int found. I notice this code haven't been changed for 5 years. And I try to find an example of cherrypy and ws4py which contain a setting of Sec-WebSocket-Protocol for websocket server. But I can't find any. I also check the handshake information sent by simple example, and it didn't contain a Sec-WebSocket-Protocol header. A more astonishing thing is there is no test about Sec-WebSocket-Protocol in test_client.py.

[Seraphli]

I think it should be fixed like this

            elif header == b'sec-websocket-protocol':
                protocols.append(value.decode('utf-8'))

            elif header == b'sec-websocket-extensions':
                extensions.append(value.decode('utf-8'))