[Python-bugs-list] [ python-Bugs-735247 ] Memory leak concerning super and staticmethod
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Fri, 09 May 2003 11:30:31 -0700
Bugs item #735247, was opened at 2003-05-09 14:08
Message generated for change (Comment added) made by jhylton
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Category: Python Interpreter Core
Group: Python 2.2.2
>Status: Closed
>Resolution: Fixed
Priority: 5
Submitted By: Steve Alexander (stevea_zope)
Assigned to: Jeremy Hylton (jhylton)
Summary: Memory leak concerning super and staticmethod
Initial Comment:
def test_leak(self):
# XXX Leaky. This is the same leak as in
test_subclass_constructor,
# but isolated to depend only on code in
Python 2.2.2.
# It still leaks on the release22-maint
branch, but not with
# Python 2.3 from CVS HEAD.
class SomeClass(object):
def somemethod():
# XXX The next line produces the
following leak:
#
# totalrefcount=233207 change=32
# <type 'tuple'> 3 12
# <type 'type'> 1 7
# <type 'dict'> 1 5
# <type 'staticmethod'> 1 4
# <type 'function'> 1 4
# <type 'getset_descriptor'> 1 4
# <type 'member_descriptor'> 1 4
# <type 'cell'> 1 4
# <type 'weakref'> 1 4
# <type 'str'> 0 10
# <type 'class'> 0 1
# <type 'code'> 0 1
super(SomeClass, None)
somemethod = staticmethod(somemethod)
SomeClass.somemethod()
The above was taken from Zope 3 CVS.
http://cvs.zope.org/Zope3/src/zope/proxy/tests/test_proxy.py.diff?r1=1.6&r2=1.7
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>Comment By: Jeremy Hylton (jhylton)
Date: 2003-05-09 18:30
Message:
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Fixed in
rev 2.73.2.1.2.5 of Modules/cPickle.c
rev 2.50.4.2 of Objects/funcobject.c
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Comment By: Steve Alexander (stevea_zope)
Date: 2003-05-09 17:03
Message:
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This is a bug report against Python 2.2.2, and the Python
2.2 maintenance branch in CVS.
I'd like to see this fixed for Python 2.2.3, as it will stop
a Zope 3 test from leaking.
The obvious way to fix it is to backport stuff from Python 2.3.
----------------------------------------------------------------------
Comment By: Jeremy Hylton (jhylton)
Date: 2003-05-09 16:40
Message:
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steve: is this bug report just a reminder to backport this
fixes from 2.3?
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Comment By: Steve Alexander (stevea_zope)
Date: 2003-05-09 14:10
Message:
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Darn, the formatting isn't preserved.
Look at the HTTP link at the bottom. The method in question
is all that changed in the diff highlighted.
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