Maks Snegov 5dc9235992 Fix potential NameError in copy_file exception handler ...

Initialize file descriptors to None before opening to prevent
UnboundLocalError in the finally block if file opening fails.

Changes:
- Initialize fin = None and fout = None at function start
- Check if descriptors are not None before closing
- Remove UnboundLocalError from exception handling (no longer needed)

This improves code quality by eliminating the need to catch an error
that indicates a logic bug. The existing tests verify correct behavior.

Fixes #6

2026-02-03 22:20:52 -08:00

20 KiB

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