Message 258058 - Python tracker

Message258058

Author	martin.panter
Recipients	asvetlov, brett.cannon, gvanrossum, martin.panter, ncoghlan, vstinner, yselivanov
Date	2016-01-12.02:25:47
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1452565547.47.0.250186620087.issue25887@psf.upfronthosting.co.za>
In-reply-to

Content
If the coroutine-iterator is going to raise RuntimeError rather than StopIteration, do you think the __await__() documentation <https://docs.python.org/dev/reference/datamodel.html#object.__await__> should be clarified? IMO “yield from coroutine_iterator” might be plausable for some strange combination of 3.4 code and a 3.5 coroutine, but I think it would be rare. And if you added a check in __await__() then the using “await” wouldn’t need to rely on next() raising the RuntimeError.

Content

If the coroutine-iterator is going to raise RuntimeError rather than StopIteration, do you think the __await__() documentation <https://docs.python.org/dev/reference/datamodel.html#object.__await__> should be clarified?

IMO “yield from coroutine_iterator” might be plausable for some strange combination of 3.4 code and a 3.5 coroutine, but I think it would be rare. And if you added a check in __await__() then the using “await” wouldn’t need to rely on next() raising the RuntimeError.

History
Date	User	Action	Args
2016-01-12 02:25:47	martin.panter	set	recipients: + martin.panter, gvanrossum, brett.cannon, ncoghlan, vstinner, asvetlov, yselivanov
2016-01-12 02:25:47	martin.panter	set	messageid: <1452565547.47.0.250186620087.issue25887@psf.upfronthosting.co.za>
2016-01-12 02:25:47	martin.panter	link	issue25887 messages
2016-01-12 02:25:47	martin.panter	create