[issue18166] 'value' attribute for ValueError
Ofer Schwarz added the comment: There's actually no advantage for a weakref here, since the exception object already holds an indirect reference to all the raising frame's locals through __traceback__. -- nosy: +blackfawn ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18166 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18166] 'value' attribute for ValueError
Antoine Pitrou added the comment: Thanks for the analysis. Closing then! -- nosy: +pitrou resolution: - rejected stage: test needed - resolved status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18166 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18166] 'value' attribute for ValueError
Ofer Schwarz added the comment: So, this is actually impossible to do. Since exceptions are c-level classes, adding members to ValueError means anything that multiple-inherits from ValueError and any other complex exception gets a multiple bases layout conflict. There's already one such class - _pyio.UnsupportedOperation inherits both ValueError and OSError - but the bigger issue is that this would break compatibility. After discussing it (face-to-face) with a bunch of core devs, I think the only reasonable course of action is to close the issue and never speak of this again. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18166 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18166] 'value' attribute for ValueError
Mark Lawrence added the comment: Just a gentle reminder guys. -- nosy: +BreamoreBoy versions: +Python 3.5 -Python 3.4 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18166 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18166] 'value' attribute for ValueError
Changes by Ezio Melotti ezio.melo...@gmail.com: -- nosy: +ezio.melotti ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18166 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18166] 'value' attribute for ValueError
Changes by Chris Rebert pyb...@rebertia.com: -- nosy: +cvrebert ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18166 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18166] 'value' attribute for ValueError
New submission from Brett Cannon: A 'value attribute for ValueError could store a weakref to the value which triggered the exception. It should be a weakref so at to prevent accidental prevention of GC of the value. -- components: Interpreter Core messages: 190781 nosy: brett.cannon priority: normal severity: normal stage: test needed status: open title: 'value' attribute for ValueError type: enhancement versions: Python 3.4 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18166 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18166] 'value' attribute for ValueError
Changes by Barry A. Warsaw ba...@python.org: -- nosy: +barry ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18166 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
