[Python-Dev] sum(...) limitation

Guido van Rossum guido at python.org
Fri Aug 1 23:51:54 CEST 2014


No. We just can't put all possible use cases in the docstring. :-)


On Fri, Aug 1, 2014 at 2:48 PM, Andrea Griffini <agriff at tin.it> wrote:

> help(sum) tells clearly that it should be used to sum numbers and not
> strings, and with strings actually fails.
>
> However sum([[1,2,3],[4],[],[5,6]], []) concatenates the lists.
>
> Is this to be considered a bug?
>
> Andrea
>
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-- 
--Guido van Rossum (python.org/~guido)
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