HBMQTT is an open source MQTT broker written with Python using asynchronous I/O.
hbmqtt is available on Pypi and can installed simply using pip :
$ pip install hbmqtt
MQTT client resides in the Client class. The examples scripts in samples/ sub-directory to know how to use if for connecting, subscribing or publishing on a MQTT broker.
Support is available on the project forum. Issues can be reported directly on Beerfactory project Jira instance.