有人可以在python 2.6.6上解释我这个奇怪的结果吗？
>>> a = "xx"
>>> b = "xx"
>>> a.__hash__() == b.__hash__()
True
>>> a is b
True # ok.. was just to be sure
>>> a = "x" * 2
>>> b = "x" * 2
>>> a.__hash__() == b.__hash__()
True
>>> a is b
True # yeah.. looks ok so far !
>>> n = 2
>>> a = "x" * n
>>> b = "x" * n
>>> a.__hash__() == b.__hash__()
True # still okay.. …