Message 241701 - Python tracker

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Author	scoder
Recipients	gvanrossum, lukasz.langa, martin.panter, pitrou, rhettinger, scoder, vstinner, yselivanov
Date	2015-04-21.05:09:05
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<[email protected]>
In-reply-to

Content
> Is it a problem that the check can't be done in a fast way from C code? C code can still quickly special case the generator type in the positive case, and it will usually be interested in an exact type match anyway. Determining that an object is not (compatible with) a generator might lead to some degradation, but in most cases, at least in the interpreter core, this would be an error case anyway, so being slower here should rarely hurt.

> Is it a problem that the check can't be done in a fast way from C code?

C code can still quickly special case the generator type in the positive case, and it will usually be interested in an exact type match anyway. Determining that an object is *not* (compatible with) a generator might lead to some degradation, but in most cases, at least in the interpreter core, this would be an error case anyway, so being slower here should rarely hurt.

History
Date	User	Action	Args
2015-04-21 05:09:06	scoder	set	recipients: + scoder, gvanrossum, rhettinger, pitrou, vstinner, lukasz.langa, martin.panter, yselivanov
2015-04-21 05:09:06	scoder	set	messageid: <[email protected]>
2015-04-21 05:09:06	scoder	link	issue24018 messages
2015-04-21 05:09:05	scoder	create