Message 259552 - Python tracker

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In-reply-to
Author	vstinner
Recipients	casevh, josh.r, lemburg, mark.dickinson, pitrou, rhettinger, serhiy.storchaka, vstinner, yselivanov, zbyrne
Date	2016年02月04日.09:37:42
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1454578662.52.0.637614714827.issue21955@psf.upfronthosting.co.za>

Content
> I agree with Marc-Andre, people doing FP-heavy math in Python use Numpy (possibly with Numba, Cython or any other additional library). Micro-optimizing floating-point operations in the eval loop makes little sense IMO. Oh wait, I maybe misunderstood Marc-Andre comment. If the question is only on float: I'm ok to drop the fast-path for float. By the way, I would prefer to see PyLong_CheckExact() in the main loop, and only call fast_mul() if both operands are Python int.

Content

> I agree with Marc-Andre, people doing FP-heavy math in Python use Numpy (possibly with Numba, Cython or any other additional library). Micro-optimizing floating-point operations in the eval loop makes little sense IMO.
Oh wait, I maybe misunderstood Marc-Andre comment. If the question is only on float: I'm ok to drop the fast-path for float. By the way, I would prefer to see PyLong_CheckExact() in the main loop, and only call fast_mul() if both operands are Python int.

History
Date	User	Action	Args
2016年02月04日 09:37:42	vstinner	set	recipients: + vstinner, lemburg, rhettinger, mark.dickinson, pitrou, casevh, serhiy.storchaka, yselivanov, josh.r, zbyrne
2016年02月04日 09:37:42	vstinner	set	messageid: <1454578662.52.0.637614714827.issue21955@psf.upfronthosting.co.za>
2016年02月04日 09:37:42	vstinner	link	issue21955 messages
2016年02月04日 09:37:42	vstinner	create

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