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Created on 2012-11-30 18:14 by Abraham Karplus, last changed 2022-04-11 14:57 by admin. This issue is now closed.
| Messages (3) | |||
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| msg176698 - (view) | Author: Abraham Karplus (Abraham Karplus) | Date: 2012-11-30 18:14 | |
When a callback function gets called from Tkinter and raises SystemExit (either directly or through sys.exit), a new SystemExit exception is raised with the original exception as its code field, such as
SystemExit(SystemExit(),)
This is due to a bug in Tkinter's CallWrapper, where it has
except SystemExit as msg:
raise SystemExit(msg)
which since msg is a SystemExit instance, creates the nesting. This bug did not exist in Python 2 because there the code was
except SystemExit, msg:
raise SystemExit, msg
and this raises msg, as it already is a SystemExit instance. I suspect the bug was introduced by using the 2to3 tool, as it will do the conversion. If so, this is a bug in 2to3, as the two snippets are not functionally identical.
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| msg176845 - (view) | Author: Roundup Robot (python-dev)  |
Date: 2012-12-03 14:13 | |
New changeset b742bbf6b07f by Andrew Svetlov in branch '3.2': Issue #16583: Prevent nesting SystemExit in tkinter.CallWrapper http://hg.python.org/cpython/rev/b742bbf6b07f New changeset 96b6e6522a1d by Andrew Svetlov in branch '3.3': Merge issue #16583: Prevent nesting SystemExit in tkinter.CallWrapper http://hg.python.org/cpython/rev/96b6e6522a1d New changeset 657caf5d3eb1 by Andrew Svetlov in branch 'default': Merge issue #16583: Prevent nesting SystemExit in tkinter.CallWrapper http://hg.python.org/cpython/rev/657caf5d3eb1 |
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| msg176846 - (view) | Author: Andrew Svetlov (asvetlov) *  |
Date: 2012-12-03 14:18 | |
Fixed. Thanks for report. As tkinter code is not processed via 2to3 tool now, I've fixed tkinter/__init__.py and like to close the issue. If there are problems in 2to3 please open new ticket dedicated to 2to3 tool only, not related to tkinter. |
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| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2022-04-11 14:57:38 | admin | set | github: 60787 |
| 2012-12-03 14:18:31 | asvetlov | set | status: open -> closed components: - 2to3 (2.x to 3.x conversion tool) keywords: + easy nosy: + asvetlov messages: + msg176846 resolution: fixed stage: resolved |
| 2012-12-03 14:13:58 | python-dev | set | nosy:
+ python-dev messages: + msg176845 |
| 2012-11-30 19:58:30 | serhiy.storchaka | set | nosy:
+ benjamin.peterson, gpolo components: + 2to3 (2.x to 3.x conversion tool) versions: - Python 3.1 |
| 2012-11-30 18:14:43 | Abraham Karplus | create | |