[issue9825] OrderedDict ref cycles cause memory leak
jason kirtland
report at bugs.python.org
Fri Sep 10 22:19:13 CEST 2010
jason kirtland <jek at discorporate.us> added the comment:
I find the behavior surprising compared to dict and other containers, where this is not an issue and weakrefs are not required in user code. I would not be surprised, however, to have to wait for a gc.collect() to clean up my cycles like I do for regular objects.
For what it's worth, the pure-python alternative linked in the docs uses neither __del__ nor weakrefs, though it is undoubtably less efficient than this implementation. And the workaround 'del OrderedDict.__del__' seems to work as well, if one is willing to wait for a gc collection.
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<http://bugs.python.org/issue9825>
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