In other #Python news, the new #scikit-build-core #pep517 backend turns out to break building extensions via #setuptools in yet another way, this time noticed via #pdm-backend.
Oh, and there's also this bug where it breaks fail2ban too. Perhaps it's the same issue.
scikit-build-core: https://github.com/scikit-build/scikit-build-core/issues/426
fail2ban: https://bugs.gentoo.org/909535
previous bug (breaking #RustLang extensions): https://github.com/scikit-build/scikit-build-core/issues/413