[Distutils] Best way to handle packaging a project that only applies to certain versions of Python

[Brett Cannon]

All of this seems like too much worry for a project that only applies to
Python 2.6 and earlier or Python 3.0. :) Thanks for the suggestions
everyone, but I'm just going to let the folks stuck on legacy versions deal
with the lack of wheels.

On Mon, 29 Aug 2016 at 23:21 Thomas Kluyver <thomas at kluyver.me.uk> wrote:

> There is also the 'python requires' metadata, which can now be provided
> via setuptools, but I think pip 8.2 needs to be released before that is
> respected.
>
>
> On Tue, Aug 30, 2016, at 01:08 AM, Daniel Holth wrote:
>
> Let's say you have different code for python 3.3 and python 3.4+. Tag one
> wheel py33-none-any and the second py34-none-any. The second wheel is
> preferred on python 3.4 and above, but ignored by 3.3. The py3 tag wouldn't
> work well here.
>
> Order of preference on 3.5 is: ('py35', 'none', 'any'), ('py3', 'none',
> 'any'), ('py34', 'none', 'any'), ('py33', 'none', 'any'), ('py32', 'none',
> 'any'), ('py31', 'none', 'any'), ('py30', 'none', 'any')
>
> Enscons would let you control the wheel tag directly but doesn't yet let
> you build multiple wheels with a single invocation.
>
> On Mon, Aug 29, 2016, 19:46 Donald Stufft <donald at stufft.io> wrote:
>
>
> On Aug 29, 2016, at 7:34 PM, Brett Cannon <brett at python.org> wrote:
>
> Someone has asked that I do a new release of importlib that includes a
> LICENSE file on PyPI: https://pypi.org/project/importlib/. Historically I
> have had the setup.py simply not include any Python code when built on
> versions of Python that include importlib in the stdlib itself:
> https://github.com/brettcannon/importlib/blob/master/setup.py .
>
> But now I would like to do a wheel. Is there some way I'm not thinking of
> to have a wheel that will leave out code or not install itself if a certain
> version of Python is used? Or will the user have to specify a proper Python
> requirement in their requirements.txt to get that kind of experience?
> _______________________________________________
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>
>
> If your setup.py produces different output on different versions of
> Python, you’ll need multiple wheels.
>
> —
>
> Donald Stufft
> _______________________________________________
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>
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