class EventHook(object): def __init__(self): self.__handlers = [] def __iadd__(self, handler): self.__handlers.append(handler) return self def __isub__(self, handler): self.__handlers.remove(handler) return self def fire(self, *args, **keywargs): for handler in self.__handlers: handler(*args, **keywargs) def clearObjectHandlers(self, inObject): for theHandler in self.__handlers: if theHandler.im_self == inObject: self -= theHandler class Nomas(): def __init__(self): self.onChange = EventHook() def myFunction(): print 'nomas' theBroadcaster = Nomas() #agrega evento theBroadcaster.onChange += myFunction #quita evento #theBroadcaster.onChange -= myFunction # fire event theBroadcaster.onChange.fire()
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