Turn light and monitor off after no movement detected

# Automation script for KDhome (Home automation system) - http://krystiand.net/projekt/12/kdhome

import kdhome, kdstate

class Light(kdhome.KDHome):

    roomState = None

    def __init__(self):
        super().__init__()

        # state name, default state, time to revert to default state (s)
        self.roomState = kdstate.KDTimedState("room_state", "empty", 20 * 60)
        self.roomState.stateChangedCallback = self.roomStateChanged

    def run(self):
        while True:
            self.poll(500, [])
            self.process()
            self.roomState.process()

    def onInputChangedEvent(self, id, name, value):
        if name == "MOTION_SENSOR":
            self.roomState.changeState("used")

    # Room state
    def roomStateChanged(self, sender, oldState, newState):
        if newState == "empty":
            self.setOutput("MONITOR", False)
            self.setOutput("LIGHT", False)
        elif newState == "used":
            self.setOutput("MONITOR", True)
            self.setOutput("LIGHT", True)

home = Light()
home.connect("localhost", 9999)
home.run()