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Tracker issue for the hashlib PBKDF2 and algorithm availability details backport to 2.7 described in PEP 466.

issue21304 has the implementation of the PBKDF2 work.

Let's dup this then.

Rather #21304 should be a dep...

Uploaded patch adds the algorithm availability constants to the hashlib module.

use a frozenset for algorithms_guaranteed.
in the docs under more algor... may be available make the two variables
link to their docs. you might explicitly mention python 2.7.9 in that
paragraph.
you probably should use pystring_fromstring imstead of unicode given this
is 2.7.
On Fri, Aug 22, 2014 at 9:46 AM, Alex Gaynor <report@bugs.python.org> wrote:
>
> Alex Gaynor added the comment:
>
> Uploaded patch adds the algorithm availability constants to the hashlib
> module.
>
> ----------
> components: +Extension Modules
> keywords: +needs review, patch
> Added file: http://bugs.python.org/file36436/backport-hashlib.diff
>
> _______________________________________
> Python tracker <report@bugs.python.org>
> <http://bugs.python.org/issue21307>
> _______________________________________
>

New patch uses PyString_FromString.
To the other two points:
1) Python3 uses a mutable set for both of these, any reason for Python2 to be inconsistent?
2) The docs in Python3 don't have this link either, I'm trying to minimize the delta; if you think there should be a link I'd prefer it be done in python3, and then I can backport that as well.

Keeping the delta small makes sense. I'd use frozenset in 3 as well but its
unimportant. LGTM.

This Look good to me. +1

New changeset 3f73c44b1fd1 by Benjamin Peterson in branch '2.7':
PEP 466: backport hashlib algorithm constants (closes #21307)
http://hg.python.org/cpython/rev/3f73c44b1fd1