Creation of custom package

[myg]

refreshing old thread as i'm having troubles implementing websocket client. The problem is that client does not timeout – i.e. it runs indefinitely until it received data from the socket, and also it does not timeout if socket disconnects (for ex. when server this client connects to goes offline).
i've traced it down to websockets library, specifically to copas.receive() call which hangs there indefinitely. Is there a way to make it work? It seems this goes into the library itself, which is built-in into LM and doesn't seem to be up to date.