class Event object def __init__ self self _handlers def __call__ self

  • Anonymous
  • Python
  • 13 Jul 2009 
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class Event(object):

    

    def __init__(self):

        self._handlers = []

    

    def __call__(self, *args, **kwargs):

        for h in self.handlers:

            h(*args, **kwargs)

    

    def __iadd__(self, handler):

        if not callable(handler):

            raise TypeError('Handler is not callable')

        self._handlers.append(handler)

        

    def __isub__(self, handler):

        self._handlers.remove(handler)
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