[issue30554] Inaccessible attribute characters_written on OSError instances

[Igor Kozyrenko (ikseek)]

Igor Kozyrenko (ikseek) added the comment:

So is it by design?
cgitb library fails to create report if there are links to exceptions based on OSError on the stack because it tries to enumerate all it's attributes.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue30554>
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