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[Python-Dev] Generator finalization and reference cycles

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Hello,

I have proposed a new generator finalization scheme in
http://bugs.python.org/issue17807: it removes the tp_del from
generator objects, instead electing to cleanup the generator
(equivalent of calling close()) in the frame's tp_clean function. This
way, generators with a try / finally block can be finalized even when
they are part of reference cycles.

This has stemmed from http://bugs.python.org/issue17468, which mentions
a memory leak in Django due to uncollectable generators.

Feedback welcome.

Regards

Antoine.

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