[pywin32-bugs] [ pywin32-Feature Requests-3441730 ] "error: Callback must return an integer, or None" needs info

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Feature Requests item #3441730, was opened at 2011-11-24 02:17
Message generated for change (Comment added) made by rupole
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Category: pythonwin
Group: None
>Status: Closed
>Resolution: Fixed
Priority: 5
Private: No
Submitted By: kxroberto (kxroberto)
Assigned to: Nobody/Anonymous (nobody)
Summary: "error: Callback must return an integer, or None" needs info

Initial Comment:
In win32ui apps "'error: Callback must return an integer, or None'" is raised  without any info which callback function/method (and optionally which Hook/Window) it is about. No traceback stack as well. Thus it is quite impossible to locate the problem.

win32uimodule.cpp/Line 749:
		PyErr_SetString(ui_module_error, "Callback must return an integer, or None");

There should be some info raised with the exception.


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>Comment By: Roger Upole (rupole)
Date: 2012-04-23 22:57

Message:
Fixed in changeset 4198.  The message will show the repr() of the offending
callback method.


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Comment By: Roger Upole (rupole)
Date: 2012-04-22 03:05

Message:
This is actually worse than just a debugging nuisance.  The code leaves an
exception hanging, which further confuses the error handling, and will
crash in python 3.  I'll add the repr of the defective callback and make
sure the original exception is printed and cleared.

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