UV_CACHE_DIR not used for Python installation #9749
Description
On Windows, when running a uv python install while having UV_CACHE_DIR set, does not result in uv using that cache location. It instead uses the default location %APPDATA%\uv\python.cache.
uv python install should respect UV_CACHE_DIR. This is especially useful when using a DevDrive and have security tools set to either ignore or be more lenient with DevDrives.
Platform: Windows 10
uv version: 0.5.7
Debug log attached. It doesn't show it, but my UV_CACHE_DIR is set to E:\Cache\uv