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Sat Oct 5 23:02:14 CEST 2013 · https://mail.python.org/pipermail/python-dev/2013-October/129186.html

05.10.13 23:11, Georg Brandl написав(ла):
> Am 05.10.2013 21:42, schrieb Serhiy Storchaka:
>> Please remember me, what was common decision about CPython-only
>> optimizations which change computation complexity? I.g. constant
>> amortization time of += for byte objects and strings, or linear time of
>> sum() for sequences?
>
> This appears to be about changeset 499a96611baa:
>
>    Issue #19087: Improve bytearray allocation in order to allow cheap popping of
> data at the front (slice deletion).

I just need something to which I can refer in similar situations (there 
was several similar rejected proposition last months).

I'm not sure issue #19087 is in same category as constant time += for 
strings. But the converse was not proven.

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