Build fails with setuptools >= 82: `ModuleNotFoundError: No module named 'pkg_resources'`

[12458]

editdistpy fails to build from source with setuptools >= 82.0.0 because setup.py imports pkg_resources.parse_version, which was removed in
setuptools v82.0.0.

Error

ModuleNotFoundError: No module named 'pkg_resources'

Full traceback occurs during setuptools.build_meta.build_wheel when setup.py is executed.

Root Cause

setup.py line 23:

from pkg_resources import parse_version

pyproject.toml specifies setuptools>=77.0.3 with no upper bound, so setuptools v82+ can be resolved, which no longer ships pkg_resources.

Fix

Replace pkg_resources.parse_version with packaging.version.parse and add packaging to build-system.requires in pyproject.toml.

Environment

• Python 3.12+
• setuptools >= 82.0.0
• uv

Relevant resouces:

• https://setuptools.pypa.io/en/stable/history.html (see v82 changelog)

[thdhondtasl]

Thanks a lot for the fix! Will this fix be released on Pypi?

[mammothb]

@thdhondtasl this has been released as version 0.2.0. Took a while because I had to resolve some errors due to outdated cibuildwheel versions

[thdhondtasl]

Thanks a lot!