[pydotorg-www] PyPI now running on nginx+uwsgi

["Martin v. Löwis"]

> If a web cache helps with PyPi, we could add varnish
> <https://www.varnish-cache.org/>. It has been praised all over the place. Ralf
> and I happen to know the author. Dunno if that would open a door, but I would
> try if we think we need help.

I'm very skeptical with respect to caching. It can be a source of
problems on its own.

Regards,
Martin