[issue35504] `del OSError().characters_written` raises `SystemError`

[Serhiy Storchaka]

Serhiy Storchaka <storchaka+cpython at gmail.com> added the comment:


New changeset 842acaab1376c5c84fd5966bb6070e289880e1ca by Serhiy Storchaka (Zackery Spytz) in branch 'master':
bpo-35504: Fix segfaults and SystemErrors when deleting certain attrs. (GH-11175)
https://github.com/python/cpython/commit/842acaab1376c5c84fd5966bb6070e289880e1ca


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