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classification
Title: on __exit__(), exc_value does not contain the exception.
Type: behavior Stage: patch review
Components: Interpreter Core Versions: Python 2.7, Python 2.6
process
Status: closed Resolution: fixed
Dependencies: Superseder:
Assigned To: benjamin.peterson Nosy List: benjamin.peterson, flox, pitrou
Priority: high Keywords: patch

Created on 2010年02月04日 09:35 by flox, last changed 2022年04月11日 14:56 by admin. This issue is now closed.

Files
File name Uploaded Description Edit
case_contextmanager_exit.py flox, 2010年02月04日 09:37
issue7853_cm_exit.diff flox, 2010年02月05日 00:40 Patch, apply to trunk
Messages (7)
msg98817 - (view) Author: Florent Xicluna (flox) * (Python committer) Date: 2010年02月04日 09:35
On __exit__(), the 3rd argument "exc_value" should contain the instance of the exception.
But in most cases, it contains only the string representation of the exception.
See attached test case.
Same behavior for KeyError, AttributeError, RuntimeError, ...
msg98833 - (view) Author: Antoine Pitrou (pitrou) * (Python committer) Date: 2010年02月04日 12:47
Indeed, it seems the exception isn't always normalized.
msg98834 - (view) Author: Benjamin Peterson (benjamin.peterson) * (Python committer) Date: 2010年02月04日 12:48
Has this behavior changed between 2.6 and 2.7?
msg98835 - (view) Author: Antoine Pitrou (pitrou) * (Python committer) Date: 2010年02月04日 12:52
No, it's also in 2.6.
msg98860 - (view) Author: Florent Xicluna (flox) * (Python committer) Date: 2010年02月05日 00:40
Patch.
msg98863 - (view) Author: Benjamin Peterson (benjamin.peterson) * (Python committer) Date: 2010年02月05日 02:12
Fixed in r77983.
msg98928 - (view) Author: Benjamin Peterson (benjamin.peterson) * (Python committer) Date: 2010年02月06日 02:03
BTW, I'm not going to backport this fix, since the implementation does carry over well to 2.6. Additionally, it is probably an unacceptable change of behavior in a bug fix release.
History
Date User Action Args
2022年04月11日 14:56:57adminsetgithub: 52101
2010年02月06日 02:03:18benjamin.petersonsetmessages: + msg98928
2010年02月05日 02:12:53benjamin.petersonsetstatus: open -> closed
resolution: fixed
messages: + msg98863
2010年02月05日 00:40:14floxsetfiles: + issue7853_cm_exit.diff
keywords: + patch
messages: + msg98860

stage: test needed -> patch review
2010年02月04日 21:24:57benjamin.petersonsetassignee: benjamin.peterson
2010年02月04日 12:52:28pitrousetmessages: + msg98835
2010年02月04日 12:48:51benjamin.petersonsetmessages: + msg98834
2010年02月04日 12:47:07pitrousetnosy: + pitrou, benjamin.peterson
messages: + msg98833
2010年02月04日 09:37:57floxsetfiles: + case_contextmanager_exit.py
2010年02月04日 09:37:49floxsetfiles: - case_contextmanager_exit.py
2010年02月04日 09:35:08floxcreate

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