[Distutils] Proposal: using /etc/os-release in the "platform tag" definition for wheel files

[Glyph]

> On Jun 22, 2016, at 12:21, Nathaniel Smith <njs at pobox.com> wrote:
> There are still use cases for distro-specific wheels, though -- some examples include Raspbian wheels (manylinux1 is x86/x86-64 only), Alpine Linux wheels (manylinux1 is glibc only), internal deploys that want to build on Ubuntu 14.04 and deploy on 14.04 and don't need the hassle of generating manylinux-style binaries but would like a more meaningful platform tag than "linux", and for everyone who wants to extend wheel metadata to allow dependencies on external distro packages then having distro-specific wheels is probably a necessary first step.
> 

If we want to treat distros as first-class deployment targets I think being able to use their platform features in a way that's compatible with PyPI is an important next step.  However, wheel tags might be insufficient here; the main appeal of creating distro-specific wheels is being able to use distro-specific features, but those typically come along with specific package dependencies as well, and we don't have a way to express those yet.

I think this is worthwhile to do, but figuring out a way to do it is probably going to take a lot of discussion.

-glyph

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