The Mosquitto Python client was donated to the Eclipse Paho project in June of this year. As mosquitto.py has been very popular, I have been maintaining both code bases together. With the Mosquitto project also moving to Eclipse it is now even more redundant to keep maintaining mosquitto.py so I would like to recommend that everybody currently using mosquitto.py move over to using the Paho Python client. The current state of the Paho client is now available on [pypi] and can be installed using `pip install paho-mqtt`. To port code from mosquitto.py, you should change: ``` import mosquitto mqttc = mosquitto.Mosquitto() ``` to: ``` import paho.mqtt.client as paho mqttc = paho.Client() ``` All error codes e.g. `MOSQ_ERR_SUCCESS` change to `MQTT_ERR_SUCCESS`. The Paho module has a compatibility Mosquitto class that means a very simple (but not recommended for the long term) port can be achieved with the following line, assuming none of the error codes are used: ``` import paho.mqtt.client as mosquitto ``` I will keep applying updates to mosquitto.py until the Paho 1.0 release. [pypi]: https://pypi.python.org/pypi/paho-mqtt