Message 387068 - Python tracker

Message387068

Author	vstinner
Recipients	amaury.forgeotdarc, arigo, ghaering, iritkatriel, jcea, lkraav, pablogsal, pitrou, pxd, vstinner
Date	2021-02-15.22:40:57
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1613428858.14.0.240829478792.issue15108@roundup.psfhosted.org>
In-reply-to

Content
> That's a lot slower unfortunately Ah sorry, I forgot PyTuple_Pack(3, item1, item2, item3) which should be very efficient. This function is also safe: only track the tuple when it is fully initialized. > This problem also is not unique to tuples, although is mainly prominent in them. PyList_New() is also affected. Do you think about other types? PyDict_New() and PySet_New() create empty containers and so are ok.

Content

> That's a lot slower unfortunately

Ah sorry, I forgot PyTuple_Pack(3, item1, item2, item3) which should be very efficient. This function is also safe: only track the tuple when it is fully initialized.

> This problem also is not unique to tuples, although is mainly prominent in them.

PyList_New() is also affected. Do you think about other types?

PyDict_New() and PySet_New() create empty containers and so are ok.

History
Date	User	Action	Args
2021-02-15 22:40:58	vstinner	set	recipients: + vstinner, arigo, jcea, ghaering, amaury.forgeotdarc, pitrou, lkraav, pxd, pablogsal, iritkatriel
2021-02-15 22:40:58	vstinner	set	messageid: <1613428858.14.0.240829478792.issue15108@roundup.psfhosted.org>
2021-02-15 22:40:58	vstinner	link	issue15108 messages
2021-02-15 22:40:57	vstinner	create