in iot_client.py [0:0]
def shadow_listener(self, shadow_name=None):
if shadow_name:
self.subscribe("$aws/things/{0}/shadow/name/{1}/update/accepted".format(self.thing_name, shadow_name), 1, self.shadow_callback)
else:
self.subscribe("$aws/things/{0}/shadow/update/accepted".format(self.thing_name), 1, self.shadow_callback)