Method_missing-ähnlicher Wrapper in Python

class Wrapper():
    def __init__(self, base):
        self.base = base

    def __getattr__( self, name ):
        def _method_missing( *args ):
            return args

        return getattr( self.data, name, _method_missing)

    def __setattr__(self, name, value):
        if name in dir(self.data):
            return setattr(self.data, name, value)
        else:
            return super(Wrapper, self).__setattr__(name, value)

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