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

Alexander Belopolsky alexander.belopolsky at gmail.com
Sat Aug 9 20:02:58 CEST 2014


On Sat, Aug 9, 2014 at 3:08 AM, Stephen J. Turnbull <stephen at xemacs.org> wrote:

All the suggestions I've seen so far are (IMHO, YMMV) just as ugly as the present situation.

What is ugly about allowing strings? CPython certainly has a way to to make sum(x, '') at least as efficient as y='';for in in x; y+= x is now. What is ugly about making sum([a, b, ..]) be equivalent to a + b + .. so that non-empty lists of arbitrary types can be "summed"? What is ugly about harmonizing sum(x) and reduce(operator.add, x) behaviors? -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.python.org/pipermail/python-dev/attachments/20140809/e276636b/attachment.html>



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