pip and uv caches

pip

pip caches every download and every wheel it builds in ~/Library/Caches/pip, ~/.cache/pip or %LocalAppData%\pip\Cache, and keeps them forever.

npx diskdiet clean --only pip                  # entries older than 30 days
pipx run diskdiet clean --only pip             # the same, from PyPI

The blunt alternative, pip cache purge, removes everything.

uv

uv's cache (uv cache dir, usually ~/.cache/uv) can grow to many gigabytes. Its entries point at one another, so diskdiet doesn't remove them one by one: with --all it runs uv's own uv cache clean.

npx diskdiet clean --all --only uv

uv cache prune (unused entries only) is a lighter option you can run yourself.

Virtual environments

diskdiet doesn't delete .venv folders: they can contain packages that aren't written down anywhere else.