[3.12] gh-105375: Improve posix error handling (GH-105592) (#105598)

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

c14f6ea7e44790d0518c3a0c17b8b1336f3a1602

Parent: 071d559

Committed by GitHub <noreply@github.com> on 6/11/2023, 7:33:30 PM