Walkthrough

Added a None-check guard in PyOSError.str to safely handle cases where the filename is None. When filename is None, the method now returns a simplified error message format instead of attempting to access filename2, preventing potential access errors.

Changes

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~8 minutes

• Specific area of focus: Verify the fallback error message format matches expected OSError behavior in Python
• Testing consideration: Ensure both code paths (with and without filename) produce correct error strings

Poem

🐰 A filename that vanishes in the night,
No longer crashes with a fright!
A guard so small, a fix so neat,
Makes error handling complete! ✨

Pre-merge checks and finishing touches

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