In order to have a nice shutdown, I suggest to modify updater.py putting self. to the two thread in
with self.__lock:
of
def start_polling(self, poll_interval=0.0, timeout=10, network_delay=2):

and to add
self.dispatcher_thread.join()
self.updater_thread.join()
before
self.logger.debug("Dispatcher stopped.")
in
with self.__lock:
if self.running:
of
def stop(self):

thanks

lorenzo