Problems with Interrupts/ callback functions in Python for an Alarm Clock project

[nilamo]

The example uses time.sleep() to wait before cancelling it.

   pi = pigpio.pi()
   decoder = rotary_encoder.decoder(pi, 7, 8, callback)
   time.sleep(300)
   decoder.cancel()
   pi.stop()

It sounds like you don't actually want to call decoder.cancel(), though... it sounds like you want it to just run forever, while the callbacks get handled. So maybe...

decoder = rotary_encoder.decoder(#etc)
while True:
    # handle events

    # so the pi doesn't melt :)
    time.sleep(500)