add a way to list cached wheel files

[RonnyPfannschmidt]

use cases
pip show-cache-command|xargs twine upload -r $LOCAL_CACHE
and

devpi use cache/$DISTRO_NAME
pip show-cache-command|xargs devpi upload ...

[dstufft]

You can do find ~/Library/Caches/pip/wheels -type f -name '*.whl', that's not the most user friendly way of doing it though.

[RonnyPfannschmidt]

thats why i'd like to have it from pip, platform differences are a pain

[nedbat]

👍 I would use this to clean out cached wheels while I am testing local installs of my package under development. Then I wouldn't need to hard-code a Mac location like this: https://bitbucket.org/ned/coveragepy/commits/a1965cdaac123a0db5b16e50b8af25c3e1ee5fa2

[xavfernandez]

@nedbat: #3146 could help you with cleaning old wheels. Feedback is welcome :)

[dstufft]

Closing this, providing a mechanism to do this will encourage people to script around and depend on pip's cache format, which we don't want to encourage people to depend on that as it is an internal detail.