wheel support for Debian?

[Matthias Klose <doko@debian.org>]

Issue #748299 asks about adding wheel support for setuptools.  I know about the
special case for pip and it's dependencies, however I would like to see to have
wheel support addressed first before applying such a patch.

 - should we add wheels everywhere? I don't think we should,
   but I'd like to state this somewhere, like in the python policy.

 - where to put wheels?  /usr/share/python-wheels is an ad-hoc
   decision which was never proposed. I'm aware about "universal"
   wheels but I'd like to clarify where wheels should be located.
   Do we need /usr/share/python/wheels, and/or /usr/share/python3/wheels?

 - naming of wheel packages.  It's good to see wheels packaged
   in a separate binary package. However there is no proposal
   how to name these packages.

Matthias