[issue14065] Element should support cyclic GC

[Martin v. Löwis]

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

As a matter of principle, garbage collection in Python should *always* work, for all types, except for the one documented exception (cycles involving __del__). Failure of a type to properly garbage collect should be considered as serious as an interpreter crash; I hence propose this issue as release blocker.

In addition, failure to support tp_traverse means that gc.get_referents doesn't work for the type, which is an inconvenience even in regular (non-cyclic) usage.

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priority: normal -> release blocker

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue14065>
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