Bugs item #1516995, was opened at 2006-07-04 10:34
Message generated for change (Comment added) made by collinwinter
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Category: Python Library
Group: Python 2.5
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Collin Winter (collinwinter)
Assigned to: Vinay Sajip (vsajip)
Summary: test_logging fails with reference count-checking enabled
Initial Comment:
When running from the following, test_logging fails:
./python Lib/test/regrtest.py -R :: test_logging.
Here's the traceback:
test test_logging crashed -- <type
'exceptions.KeyError'>: <logging.StreamHandler instance
at 0xb7aaebcc>
Traceback (most recent call last):
File "Lib/test/regrtest.py", line 554, in runtest_inner
dash_R(the_module, test, indirect_test, huntrleaks)
File "Lib/test/regrtest.py", line 673, in dash_R
run_the_test()
File "Lib/test/regrtest.py", line 660, in run_the_test
indirect_test()
File
"/home/collin/src/python/Lib/test/test_support.py",
line 299, in inner
return func(*args, **kwds)
File
"/home/collin/src/python/Lib/test/test_logging.py",
line 677, in test_main
test_main_inner()
File
"/home/collin/src/python/Lib/test/test_logging.py",
line 640, in test_main_inner
globals()['test%d' % t]()
File
"/home/collin/src/python/Lib/test/test_logging.py",
line 347, in test2
sh.close()
File
"/home/collin/src/python/Lib/logging/__init__.py", line
687, in close
del _handlers[self]
KeyError: <logging.StreamHandler instance at 0xb7aaebcc>
This problem does not occur when run without reference
count-checking.
System info:
Python SVN r47224
Linux 2.6.13
x86
----------------------------------------------------------------------
>Comment By: Collin Winter (collinwinter)
Date: 2007-03-10 15:36
Message:
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Originator: YES
Vinay: I've been able to gather a little more information.
The problem occurs during the second run-through of the test suite; that
is, it runs once, then "-R ::" kicks in and starts to run the test again,
which is when the exception occurs. From what I can tell from poking around
test2(), something is removing the "sh" handler from logging._handlers
prematurely (its id() matches that displayed in the KeyError traceback).
More poking around: "-R ::" doesn't really enter into it. Modifying
test_main_inner() to run test2() more than once (in isolation or after
other tests) will trigger this, too. On the second run, sh.close() raises a
KeyError.
----------------------------------------------------------------------
Comment By: Vinay Sajip (vsajip)
Date: 2007-03-10 12:25
Message:
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Hi Collin,
I'm sorry to be so slow on this. For various reasons, I don't have a debug
build of Python 2.5 :-(, without which the -R option is not available to
me. Also, of course, it's not a bug in logging itself, more in the test
case.
If you have time, I would appreciate some help on this: I would
temporarily modify test_logging to print out the StreamHandlers created
either explicity in test_logging.py or via the calls to fileConfig(), to
see which StreamHandler is not being released. TIA...
----------------------------------------------------------------------
Comment By: Collin Winter (collinwinter)
Date: 2007-03-09 15:42
Message:
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Originator: YES
Still present as of 54248. Vinay, do you have any insights on this?
----------------------------------------------------------------------
Comment By: Collin Winter (collinwinter)
Date: 2006-09-01 00:03
Message:
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user_id=1344176
This issue is still present as of r51654.
----------------------------------------------------------------------
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