[Catalog-sig] [Distutils] Prototype setuptools-specific PyPI index.

["Martin v. Löwis"]

> Would it be a bad idea to suggest the case insensitive lookup happen
> against a local flat file that gets diff'd from PyPI?  Then only the
> culprit gets punished using their own CPU :)

What does it mean to "diff a flat file from PyPI"?

Regards,
Martin