Hi, I've successfully rebuilt python3-param/1.12.3 with python3-pkg-resources/5.6.3-1 and python3-setuptools/65.6.3-1 from snapshot.d.o [1] I don't know this is a regression in setuptools (recently uploaded [2]) or a bug in the package itself.
Thanks for your work in Debian. Kind Regards [1] https://snapshot.debian.org/package/setuptools/65.6.3-1/ [2] https://tracker.debian.org/news/1413979/accepted-setuptools-6611-1-source-into-unstable/