In the project's PEP 621 metadata ('pyproject.toml'), there is an unnecessary runtime dependency on setuptools listed in dependencies section (yet the code does not use setuptools or pkg_resources).
setuptools
dependencies
pkg_resources
(Initially reported by @mgorny as a comment on an earlier issue.)
This bug is resolved in commit efbe399d, now merged to the 'main' branch.
Metadata Update from @bignose: - Issue close_status updated to: Fixed - Issue status updated to: Closed (was: Open)