Hello. python-hglib BuildRequires python3-nose. python-nose will be retired from Fedora 43. Please drop this requirement or retire python-hglib as well. python3-nose was deprecated in Fedora for 5 years. https://fedoraproject.org/wiki/Changes/RetirePythonNose Let me know if you need assistance. Thanks.
As per point 3 of https://docs.fedoraproject.org/en-US/fesco/Fails_to_build_from_source_Fails_to_install/#_package_removal_for_long_standing_ftbfs_and_fti_bugs I am asking the maintainer(s) to respond.
_