# handle an event, return a result (or None)

def function1(label, count):
    return "%s number %i..." % (label, count)

def function2(label, count):
    return label * count

# register handlers, trigger events 

import cregister
cregister.setHandler(function1)
for i in range(3):
    cregister.triggerEvent()   # simulate events caught by C

cregister.setHandler(function2)
for i in range(3):
    cregister.triggerEvent()   # routes events to function2