[issue2246] itertools.groupby() leaks memory with circular reference

[Martin v. Löwis]

Martin v. Löwis <martin at v.loewis.de> added the comment:

Backport candidate

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nosy: +loewis
versions: +Python 2.5.3 -Python 2.4, Python 2.5, Python 2.6, Python 3.0

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<http://bugs.python.org/issue2246>
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