>>> class x:
… y = 0
…
>>> for x.y in range(5):
… print x.y,
…
0 1 2 3 4
>>>
>>> x = [None]
>>> for x[0] in range(5):
… print x,
…
[0] [1] [2] [3] [4]
>>>
>>> class x:
… y = 0
…
>>> for x.y in range(5):
… print x.y,
…
0 1 2 3 4
>>>
>>> x = [None]
>>> for x[0] in range(5):
… print x,
…
[0] [1] [2] [3] [4]
>>>