@abravalheri @jaraco out of all my currently open PRs, this is the one I'd like to prioritise most, as it marks pkg_resources as py.typed, launching the 6 months countdown to remove pkg_resources from typeshed.

I've also been thinking of maybe not enforcing ANN2 on the setuptools side yet, since I'd probably disable it later to progressively type setuptools like I did pkg_resources

I didn't see any changes in the implementation. Please confirm that's the case.

I re-reviewed the PR and I don't see any change in implementation either.

if we have to back out #4457, probably some of the type checking will need to back off, but that outcome seems unlikely at this point.

Even that I feel would be minor.