Oh wow new to me. Had not seen that one. Even more disappointing because the tool is far from primetime. Going back to the original. A few years back when I was using pipenv it kept the tagline that it was the future of python and endorsed fully but I am pretty sure that was a stretch or perhaps the maintainer was using his clout and his own recommendation.

Those pages are managed by the "PyPA" group, not technically python.org itself, although they were given a subdomain there. Start here and follow the links for more info: https://hynek.me/articles/python-app-deps-2018/

I'm aware that the Python Packaging Authority is not the Python Software Foundation. But they are also the Packaging Authority.

The PSF may not have officially granted them some sort of status, but as PyPA maintain pip, setuptools and warehouse, they are in fact the authority when it comes to packaging, unless the PSF comes out with a statement saying they aren't.

By having the subdomain, they're endorsed (possibly transitively) by whoever runs python.org. If they want to _not_ endorse whatever PyPA is doing, they need to not supply the subdomain.