Package: python3-pyflow Version: 1.1.20-4 Severity: serious Filing this as serious severity, because it has the risk of breaking unrelated software.
The background here is that setuptools since 66 has required PEP-440 valid versions for all packages installed on a system. Pip makes a noise about this since 23.3 in preparation for completely rejecting them in pip 24. https://github.com/pypa/setuptools/issues/3772#issuecomment-1384342813 https://github.com/pypa/pip/issues/12063 It looks like ${VERSION} is never expanded in setup.py. I suspect this is because you are grabbing source from GitHub, and not using tarballs from "scratch/make_release_tarball.bash" Please provide a valid version in the package metadata. $ python3 -c 'import pkg_resources; pkg_resources.require("pyFlow")' This affects bookworm too, if a virtualenv has --system-site-packages (less common) and upgraded setuptools (very common). Stefano
