[3.12] gh-114763: Protect lazy loading modules from attribute access races (GH-114781) #115870
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…aces (pythonGH-114781) Setting the __class__ attribute of a lazy-loading module to ModuleType enables other threads to attempt to access attributes before the loading is complete. Now that is protected by a lock. (cherry picked from commit 200271c) Co-authored-by: Chris Markiewicz <effigies@gmail.com>
This was referenced Feb 24, 2024
brettcannon
approved these changes
Feb 24, 2024
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Setting the class attribute of a lazy-loading module to ModuleType enables other threads to attempt to access attributes before the loading is complete. Now that is protected by a lock.
(cherry picked from commit 200271c)
Co-authored-by: Chris Markiewicz effigies@gmail.com