[ python-Bugs-1510580 ] Setting category fails with -W switch
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Thu Jun 22 15:50:14 CEST 2006
Bugs item #1510580, was opened at 2006-06-22 08:20
Message generated for change (Comment added) made by akuchling
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Category: Python Library
Group: Python 2.5
Status: Open
Resolution: None
Priority: 5
Submitted By: A.M. Kuchling (akuchling)
Assigned to: Brett Cannon (bcannon)
Summary: Setting category fails with -W switch
Initial Comment:
This command reports an "invalid warning category"
error, but it shouldn't.
./python -W'ignore:Not importing directory:ImportWarning'
I think the change to new-style exceptions exposed this
problem. warnings.py contains the following code to
trigger this error:
if (not isinstance(cat, types.ClassType) or
not issubclass(cat, Warning)):
raise _OptionError("invalid warning category:
%r" % (category,))
The new-style exceptions mean that the first
isinstance() now returns False. I think there may be
two fixes needed. First, I think it should be
"isinstance(cat, types.ClassType) or isinstance(cat,
type)".
Second issue: hould the warnings.py code use "and"
instead of "or"? Surely if issubclass(cat, Warning) is
True, the category is certainly OK; no?
----------------------------------------------------------------------
>Comment By: A.M. Kuchling (akuchling)
Date: 2006-06-22 09:50
Message:
Logged In: YES
user_id=11375
Once the problem is fixed, the attached patch adds some
tests for warning parsing.
----------------------------------------------------------------------
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