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

["Martin v. Löwis"]

> Perhaps it /could/ be, but isn't currently.  For example, updating one
> piece of software I have with almost 150 dependencies takes 45 seconds
> with ppix, 4:45 without.  I plan to do similar timings with the "simple"
> PyPI interface when I get a chance and report the results here.


I was, of course, talking about the simple interface.

The full index will certainly take much more time because setuptools
has to request more pages, and each page contains a lot of unnecessary
data.

Regards,
Martin