Python 3 library timeout errors

Troubleshooting
4

@zranger1

Looking at the code for waitForEmptyQueue there does seem to be a bug in it, as it doesn’t return False on a timeout, it throws an exception.

I think it should be:

def waitForEmptyQueue(self, timeout_ms=1000):
    """
    Wait until the Pixelblaze's websocket message queue is empty, or until
    timeout_ms milliseconds have elapsed.  Returns True if an empty queue
    acknowldgement was received, False if timeout or error occurs.
    """
    self.ws_flush()
    self.ws.settimeout(timeout_ms / 1000)
    try:
        self.send_string('{"ping": true}')
        result = self.ws.recv()
        self.ws.settimeout(self.default_recv_timeout)

        return True if ((result is not None) and (result.startswith('{"ack"'))) else False
    except websocket._exceptions.WebSocketTimeoutException:
        self.ws.settimeout(self.default_recv_timeout)  # restore normal timeout
    return False