Message 381959 - Python tracker

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Author	vstinner
Recipients	eric.smith, gvanrossum, iritkatriel, steven.daprano, vstinner
Date	2020-11-27.19:30:59
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1606505460.04.0.248340548109.issue42482@roundup.psfhosted.org>
In-reply-to

Content
I consider PR 23531 change as a bugfix and IMO it's fine to backport it. TracebackException docstring is quite explicit: The traceback module captures enough attributes from the original exception to this intermediary form to ensure that no references are held, while still being able to fully print or format it. This issue shows that there was a bug in the implementation. -- The unit test should check the ref count of the exception and the exception traceback, to check functionally that no strong reference is hold.

I consider PR 23531 change as a bugfix and IMO it's fine to backport it.

TracebackException docstring is quite explicit:

    The traceback module captures enough attributes from the original exception
    to this intermediary form to ensure that no references are held, while
    still being able to fully print or format it.

This issue shows that there was a bug in the implementation.

--

The unit test should check the ref count of the exception and the exception traceback, to check functionally that no strong reference is hold.

History
Date	User	Action	Args
2020-11-27 19:31:00	vstinner	set	recipients: + vstinner, gvanrossum, eric.smith, steven.daprano, iritkatriel
2020-11-27 19:31:00	vstinner	set	messageid: <1606505460.04.0.248340548109.issue42482@roundup.psfhosted.org>
2020-11-27 19:31:00	vstinner	link	issue42482 messages
2020-11-27 19:30:59	vstinner	create