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def get_g(self):
    return g
def set_g(self, _g):
    global g
    g = _g
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class A(object):
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def get_pp(name):
    def get_g(self):
        return globals()[name]
    def set_g(self, _g):
        globals()[name] = _g
    return property(get_g, set_g)
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