pypa/pip — pull request #1788 by blueyed (2014-05-03 20:50:45+00:00)
Title: RequirementSet: normalize paths (esp. wheel_download_dir)

Normalize `wheel_download_dir` passed to RequirementSet

This handles `wheel_dir = ~/.cache/pip/wheelhouse` correctly when invoked via `pip wheel -r requirements.txt`.

This also uses `normalize_path` for `download_cache`, because this appears to be in line with other places where paths are normalized.