Hello. I've noticed that `python-portend' does not have a correct version number in the output derivation. This will create failures during the `python-build-system' `sanity-check' phase.
The following command demonstrates the issue: --8<---------------cut here---------------start------------->8--- $ guix shell --pure grep python python-portend -- pip3 list portend | grep 'portend' portend 0.0.0 ... --8<---------------cut here---------------end--------------->8--- Have a great day, Sergio.
