[3.13] GH-85168: Use filesystem encoding when converting to/from `file` URIs (GH-126852)#127039

barneygale merged 3 commits intopython:3.13python/cpython:3.13from

miss-islington:backport-c9b399f-3.13miss-islington/cpython:backport-c9b399f-3.13Copy head branch name to clipboard