Fair enough. I should write up provides-extra as an actual patch to the pep. It is just a way to express together with requires-dist what pip install pyramid[test] installs above just pip install pyramid, it is needed for setup tools to generate dist info without losing that information, and my distribute fork has an implementation. Are there really other proposals for including that package[extras] feature in the static metadata?

I think that is the only part of my packaging work that needs to amend an existing spec, unless you want to opine on putting a build serial number in the versioning pep.