def __init__(self, *args, **kwds):
                'Create _slotvalues list and call the original __init__'                
                self._slotvalues = [None] * len(slots)
                if original_init is not None:
                    original_init(self, *args, **kwds)
Create _slotvalues list and call the original __init__
recipes/Python/532903_How_slots_are_implemented/recipe-532903.py