[Distutils] PyPI classifier for standard library modules/backports?

Nick Coghlan ncoghlan at gmail.com
Fri Jan 3 03:13:02 CET 2014

On 3 Jan 2014 08:20, "Vinay Sajip" <vinay_sajip at yahoo.co.uk> wrote:
> > I guess my question then is "why do you
> > care?" If 2to3 is run at install time then it's a
> > cost, but it's one-time and if you really care you can
> > always create your own wheel of the translated code or
> > something.
> Because I've written a packaging tool that doesn't use setup.py but
instead uses a fully declarative format for building and installing
packages, and I don't want that tool to run what can be a time-consuming
step every time it installs certain packages, when that step isn't
necessary. It's not a common use case, I grant you :-)

Also getting into the metabuild system design. The idea of classifiers
potentially having programmatic effects is one that hadn't previously
occurred to me - I've always just viewed them as advisories for human

However, it would only apply when installing from an sdist (not a wheel),
so I don't believe the extra complexity is worth it at this point - for the
moment, setup.py remains the only "defined" build system. However, we
should definitely make sure that it is covered in the development of the
metabuild system.


> Regards,
> Vinay Sajip
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