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class Wrapper:
    def __init__(self,innerClass,**kw):
        self.obj = innerClass(**kw)
    def __getattr__(self,name):
        innerAttr = getattr(self.obj,name)
        if callable(innerAttr):
            print name
        return innerAttr

def MetaWrapper(innerClass):
    def f():
        return Wrapper(innerClass)
    return f
    #return lambda ): Wrapper(innerClass)

class A:
    def cucu(self):
        print 8

AA = MetaWrapper(A)

>>> a= A()
>>> a.cucu()
8
>>> aa= AA()
>>> aa.cucu()
cucu
8