[Distutils] Specifying Python version as part of requirements

[Brett Cannon]

On Fri Jul 04 2014 at 10:38:58 PM, Daniel Holth <dholth at gmail.com> wrote:

> The next wheel release and the wheel code in revision control will support
> the setuptools conditional requirements syntax. See wheel's own setup.py in
> mercurial tip. 🐙
>
Glad this will work eventually, but unfortunately not all of my
dependencies have wheels yet, so I will have to stick with my setup.py 'if'
statements.

-Brett


> On Jul 4, 2014 7:48 PM, "Donald Stufft" <donald at stufft.io> wrote:
>
>> So this is in PEP uh, 426 I think. It’s not final yet but it kinda works
>> right now for Wheels.
>>
>> Basically you do a conditional include to install_requires in your
>> setup.py, and then if
>> you’re creating wheels you do something like ->
>> https://github.com/dstufft/twine/blob/master/setup.cfg#L9-L13
>>
>> That will overwrite install_requires, but only for Wheels.
>>
>> On Jul 4, 2014, at 6:51 PM, Brett Cannon <bcannon at gmail.com> wrote:
>>
>> > I just checked PEP 440 and pip doesn't seem to have anything specific,
>> so I thought I would ask if there is any way now or in the future to
>> specify that a dependency is only needed for certain versions of Python?
>> >
>> > My current use case is I want to use unittest2, but pip errors out
>> during installation under Python 3 of it since unittest2 imports itself and
>> triggers a syntax error. Instead of having to hack around this by making it
>> a conditional include in my setup.py I would like to declare that I only
>> need it in Python 2.x in a requirements.txt file or something.
>> > _______________________________________________
>> > Distutils-SIG maillist  -  Distutils-SIG at python.org
>> > https://mail.python.org/mailman/listinfo/distutils-sig
>>
>>
>> -----------------
>> Donald Stufft
>> PGP: 0x6E3CBCE93372DCFA // 7C6B 7C5D 5E2B 6356 A926 F04F 6E3C BCE9 3372
>> DCFA
>>
>>
>> _______________________________________________
>> Distutils-SIG maillist  -  Distutils-SIG at python.org
>> https://mail.python.org/mailman/listinfo/distutils-sig
>>
>>
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