Message 292239 - Python tracker

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In-reply-to
Author	vstinner
Recipients	orent, serhiy.storchaka, vstinner
Date	2017年04月24日.20:59:20
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1493067560.62.0.00749013935485.issue30156@psf.upfronthosting.co.za>

Content
Come on, yet another crash from property_descr_get()??? It's the 3rd time... Do we really need this micro-optimization? Previous bugs and workarounds: - issue #26811 - issue #24276 Using the FASTCALL calling convention, no temporary tuple is created to pass arguments if you use the _PyObject_FastCall() API and if the called function supports this calling convention. Sadly, namedtuple.attr uses operator.itergetter, itemgetter_call() doesn't support the FASTCALL, and my tp_fastcall patch was rejected: issue #29259.

Content

Come on, yet another crash from property_descr_get()??? It's the 3rd time... Do we really need this micro-optimization?
Previous bugs and workarounds:
- issue #26811
- issue #24276
Using the FASTCALL calling convention, no temporary tuple is created to pass arguments if you use the _PyObject_FastCall() API and if the called function supports this calling convention.
Sadly, namedtuple.attr uses operator.itergetter, itemgetter_call() doesn't support the FASTCALL, and my tp_fastcall patch was rejected: issue #29259.

History
Date	User	Action	Args
2017年04月24日 20:59:20	vstinner	set	recipients: + vstinner, orent, serhiy.storchaka
2017年04月24日 20:59:20	vstinner	set	messageid: <1493067560.62.0.00749013935485.issue30156@psf.upfronthosting.co.za>
2017年04月24日 20:59:20	vstinner	link	issue30156 messages
2017年04月24日 20:59:20	vstinner	create

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