Message 336699 - Python tracker

Message336699

Author	zasdfgbnm
Recipients	zasdfgbnm
Date	2019-02-26.17:09:57
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1551200997.63.0.481035129926.issue36126@roundup.psfhosted.org>
In-reply-to

Content
In Python 2.7 structseq is not a tuple, and in `structseq_repr` a tuple is created to help extracting items. However when the check at https://github.com/python/cpython/blob/2.7/Objects/structseq.c#L268 fails, the reference count of this tuple is not decreased, causing memory leakage. To reproduce, download the attached file, install and run the `quicktest.py` and watch the memory usage. This bug only exists on python 2.7, because on python >3.2, no helper tuple is created.

Content

In Python 2.7 structseq is not a tuple, and in `structseq_repr` a tuple is created to help extracting items. However when the check at https://github.com/python/cpython/blob/2.7/Objects/structseq.c#L268 fails, the reference count of this tuple is not decreased, causing memory leakage.

To reproduce, download the attached file, install and run the `quicktest.py` and watch the memory usage.

This bug only exists on python 2.7, because on python >3.2, no helper tuple is created.

History
Date	User	Action	Args
2019-02-26 17:09:57	zasdfgbnm	set	recipients: + zasdfgbnm
2019-02-26 17:09:57	zasdfgbnm	set	messageid: <1551200997.63.0.481035129926.issue36126@roundup.psfhosted.org>
2019-02-26 17:09:57	zasdfgbnm	link	issue36126 messages
2019-02-26 17:09:57	zasdfgbnm	create