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

[Serhiy Storchaka]

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

Good catch Zackery! Thank you for your PR.

----------

_______________________________________
Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue35504>
_______________________________________