On Thu, Aug 30, 2012 at 4:44 AM, Peter Otten <[email protected]> wrote:
>
>>>> sum(["a", "b", "c"], "")
> Traceback (most recent call last):
> File "<stdin>", line 1, in <module>
> TypeError: sum() can't sum strings [use ''.join(seq) instead]
>
> gives me the creeps even though it'd never occur to me to actually use sum()
> to join a sequence of strings.
class Start(object):
def __add__(self, other):
return other
>>> sum(['Bypassing', ' nanny', ' typecheck...'], Start())
'Bypassing nanny typecheck...'
FTFY
(It goes without saying: never do this.)
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