Echo client lineReceived()

gistfile1.py

    def lineReceived(self, msg):

        try:
            msg = json.loads(msg)
        except json.JSONDecoderError:
            print "Received a non-JSON message: %s" % msg

        if "message" in msg:

           print "<{from}> {message}".format(**msg)

        elif "acknowledge" in msg:

            if not msg["acknowledge"] in self.msgs:
                print "We got a bad ack: {id}".format(msg["acknowledge"])
                return
            id_ = msg["acknowledge"]
            print id_
            self.msgs[id_]["deferred"].callback(self.msgs[id_]["msg"])
            del self.msgs[id_]
        else:
            print json.dumps(msg,indent=True)