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Sat Aug 2 20:15:34 CEST 2014 · https://mail.python.org/pipermail/python-dev/2014-August/135630.html

On Sat, Aug 2, 2014 at 11:06 AM, Stefan Behnel <stefan_ml at behnel.de> wrote:

> I don't think sum(strings) is beautiful enough

sum(strings) is more beautiful than ''.join(strings) in my view, but
unfortunately it does not work even for lists because the initial value
defaults to 0.

sum(strings, '') and ''.join(strings) are equally ugly and non-obvious
because they require an empty string.  Empty containers are an advanced
concept and it is unfortunate that a simple job of concatenating a list of
(non-empty!) strings exposes the user to it.
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[Python-Dev] sum(...) limitation