more structured logging

__init__.py

 logger = logging.getLogger(ROOT_LOGGER_NAME).getChild(__name__)
 
 
+def get_topic_logger(topic):
+    topic_logger = logger
+    for entry in topic.split('/'):
+        topic_logger = topic_logger.getChild(entry)
+    return topic_logger
+
+
 class mqtt_client(object):
     def __init__(self, name, host, port=1883, username=None, password=None):
         self.__block_add_callbacks__ = True
         self.__client__.subscribe(topic)
 
     def send(self, topic, payload):
-        logger.debug("Sending message with topic %s and payload %s",
-                     topic, str(payload))
+        get_topic_logger(topic).debug("Sending message with topic %s and payload %s", topic, str(payload))
         self.__client__.publish(topic, payload)
 
     def __on_connect__(self, client, userdata, flags, rc):
         logger.warning("Disconnect with rc=%d", rc)
 
     def __receive__(self, client, userdata, message):
-        logger.debug("Received message with topic %s and payload %s", message.topic, str(message.payload))
+        get_topic_logger(message.topic).debug("Received message with topic %s and payload %s", message.topic, str(message.payload))
         for topic in self.__callbacks__.copy():
             if topic.endswith('#'):
                 if message.topic.startswith(topic[:-1]):