[3.11] gh-105375: Improve posix error handling (GH-105592) (#105597)

Fix a bug where an IndexError could end up being overwritten.
(cherry picked from commit f668f73bc88cce0112b304d87aa998fb28013c71)

Co-authored-by: Erlend E. Aasland <erlend.aasland@protonmail.com>

Miss Islington (bot) committed 2y ago

c1797f661dab563c9b1fa9fdecf2bf1f4d5e0c8e

Parent: 76682ba

Committed by GitHub <noreply@github.com> on 6/9/2023, 8:55:34 PM