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python parens pasted by caolanm on Wed Jul 19 11:17:14 2017

>>> False == False in [False]
True
>>> False == (False in [False])
False
>>> (False == False) in [False]
False
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caolan added by evhan on Wed Jul 19 11:28:17 2017

>>> def foo(a=[]):
...     a += [1]
...     return a
...
>>> foo()
[1]
>>> foo()
[1, 1]
>>> foo()
[1, 1, 1]
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What's the procedure that returns the cdr of a cdr?
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