def METHOD_NAME(self):
    shuge = '12345' * 120
    shuge_float = float(shuge)
    shuge_int = int(shuge)
    self.assertRaises(OverflowError, float, shuge_int)
    self.assertRaises(OverflowError, int, shuge_float)
    # and cmp should not overflow
    self.assertNotEqual(0.1, shuge_int)