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Fri Nov 25 13:02:53 CET 2011 · https://mail.python.org/pipermail/python-dev/2011-November/114640.html

I was under the impression this is already in 3.3?

On Nov 25, 2011 10:58 PM, "Eli Bendersky" <eliben at gmail.com> wrote:
>
>
>> > However, the original question remains - on the 100MB file also,
although
>> > in 2.7 readinto is 35% faster than readandcopy(), on 3.2 it's about the
>> > same speed (even a few % slower). That said, I now observe with Python
3.3
>> > the same speed as with 2.7, including the readinto() speedup - so it
>> > appears that the readinto() regression has been solved in 3.3? Any clue
>> > about where it happened (i.e. which bug/changeset)?
>>
>> It would probably be http://hg.python.org/cpython/rev/a1d77c6f4ec1/
>
>
> Great, thanks. This is an important change, definitely something to wait
for in 3.3
> Eli
>
>
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[Python-Dev] file.readinto performance regression in Python 3.2 vs. 2.7?