python-packaging

Make a Python library installable and buildable with verified artifacts: one pyproject.toml as the single source of truth, a deliberately chosen PEP 517 build backend, src/ layout, uv-managed dependencies with a committed lockfile, and an sdist + wheel whose contents are checked rather than assumed. The failures this skill prevents: declared files (py.typed, data files) silently missing from the wheel, backends that cannot handle the project's layout or extensions, Poetry migrations that switch the backend before resolution is verified, and pip calls that desync a uv-managed environment.

When NOT to use