MQTT is a simple protocol for publishing/subscribing to events (over a network if you like). The Python clients on https://github.com/mqtt/mqtt.github.io/wiki/l

MQTT is a simple protocol for publishing/subscribing to events (over a network if you like). The Python clients on https://github.com/mqtt/mqtt.github.io/wiki/libraries https://github.com/mqtt/mqtt.github.io/wiki/libraries look like they all have examples of a simple "run this python function whenever XYZ message happens" program.