Message 271164 - Python tracker

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Author	SylvieLorxu
Recipients	Kwpolska, SylvieLorxu
Date	2016-07-24.15:46:17
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1469375177.67.0.287991264427.issue27607@psf.upfronthosting.co.za>
In-reply-to

Content
If main imports another file, and this file imports an Enum class from main, isinstance will return false for Enum variables set in this file, causing the Enums to never match. A proof of concept is added as a zip. I thank Kwpolska for simplifying my initial proof of concept. To test this, unzip both files into the same directory and launch main.py with Python 3. I have succesfully been able to reproduce this issue on Python 3.4.3. From discussion on IRC with Vgr, PEP 499 may be related to this issue: https://www.python.org/dev/peps/pep-0499/.

If main imports another file, and this file imports an Enum class from main, isinstance will return false for Enum variables set in this file, causing the Enums to never match.

A proof of concept is added as a zip. I thank Kwpolska for simplifying my initial proof of concept.

To test this, unzip both files into the same directory and launch main.py with Python 3. I have succesfully been able to reproduce this issue on Python 3.4.3.

From discussion on IRC with Vgr, PEP 499 may be related to this issue: https://www.python.org/dev/peps/pep-0499/.

History
Date	User	Action	Args
2016-07-24 15:46:17	SylvieLorxu	set	recipients: + SylvieLorxu, Kwpolska
2016-07-24 15:46:17	SylvieLorxu	set	messageid: <1469375177.67.0.287991264427.issue27607@psf.upfronthosting.co.za>
2016-07-24 15:46:17	SylvieLorxu	link	issue27607 messages
2016-07-24 15:46:17	SylvieLorxu	create