[3.13] gh-145506: Fixes CVE-2026-2297 by ensuring SourcelessFileLoader uses io.open_code (GH-145507)#145513

zooba merged 1 commit intopython:3.13python/cpython:3.13from

miss-islington:backport-a51b1b5-3.13miss-islington/cpython:backport-a51b1b5-3.13Copy head branch name to clipboard