[Distutils] setup.cfg new format proposal

[P.J. Eby]

At 12:16 PM 9/16/2009 +0200, Tarek Ziadé wrote:
>On Wed, Sep 16, 2009 at 2:42 AM,  <exarkun at twistedmatrix.com> wrote:
> >
> > What use cases do we have?  There's the one described above, which lots of
> > people have been talking about.  I think there's another one related to
> > target Python version - eg, on Python 2.3, depend on simplejson, but on
> > Python 2.6, don't.  What else?
>
>So if I resume, so far the uses cases are:
>
>- the OS given by os.name and sys.platform 
>(linux/mac/windows/riscos/ce/ etc..)
>- the architecture, given by os.uname() (32/64 bits)
>- the python version, given sys.version_info

Do we have anything besides dependencies that change based on the 
above?  If not, then we might be able to address this with the 
"extras" syntax mechanism already present in install_requires, and we 
might able to do it without even changing that syntax.