def __init__(cls, name, bases, dct):
        """Constructor."""
        type.__init__(cls, name, bases, dct)
        # Base classes may never be initialized.
        if cls.__bases__ != (object,):
            cls.__initialized = True
def __init__ ( cls , name , bases , dct ) : type . __init__ ( cls , name , bases , dct ) if cls . __bases__ != ( object , ) : cls . __initialized = True
Constructor.