Message 246501 - Python tracker

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Author	vstinner
Recipients	gvanrossum, vstinner, yselivanov
Date	2015-07-09.14:10:12
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1436451012.9.0.143193752985.issue24598@psf.upfronthosting.co.za>
In-reply-to

Content
> Doesn't the cycle-detecting GC handle these? Maybe you are lucky and the GC is able to break the cycle. Maybe you are unlucky and all objects part of the cycle will never be deleted. Python 3.4 is better to handle these cases, but Python 3.3 is worse to handle reference cycles. Being aware of the cycles help the developer to control when objects are deleted. It mean breaking the cycles help to delete objects sooner. See other asyncio issues about "reference cycles" for some examples.

> Doesn't the cycle-detecting GC handle these?

Maybe you are lucky and the GC is able to break the cycle. Maybe you are unlucky and all objects part of the cycle will never be deleted. Python 3.4 is better to handle these cases, but Python 3.3 is worse to handle reference cycles.

Being aware of the cycles help the developer to control when objects are deleted. It mean breaking the cycles help to delete objects sooner.

See other asyncio issues about "reference cycles" for some examples.

History
Date	User	Action	Args
2015-07-09 14:10:12	vstinner	set	recipients: + vstinner, gvanrossum, yselivanov
2015-07-09 14:10:12	vstinner	set	messageid: <1436451012.9.0.143193752985.issue24598@psf.upfronthosting.co.za>
2015-07-09 14:10:12	vstinner	link	issue24598 messages
2015-07-09 14:10:12	vstinner	create