[Distutils] the 'wheel' binary package format

[Daniel Holth]

>> Is wheel for Python 2? I'm trying to build using 3.3a2, and I get:
>
> At the moment, yes. I have yet to set up my tox environment to test in
> both, but https://bitbucket.org/dholth/cpython contains a (slightly
> older) version of it for 'packaging'.

Oops, that's wrong. It just contains some of the precursor work that
was ported over to distribute.