Message 154392 - Python tracker

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In-reply-to
Author	ncoghlan
Recipients	Arfrever, benjamin.peterson, ncoghlan, pitrou
Date	2012年02月26日.21:18:47
SpamBayes Score	0.00076100376
Marked as misclassified	No
Message-id	<1330291128.47.0.506655003796.issue14133@psf.upfronthosting.co.za>

Content
Because you're breaking the semantics of the "raise X from Y" syntax. That syntax is just syntactic sugar for "_exc = X; _exc.__cause__ = Y; raise _exc". Under PEP 409, that remains true. Your patch breaks it. If you want to change the meaning for "raise X from Y", write a new PEP.

Content

Because you're breaking the semantics of the "raise X from Y" syntax.
That syntax is *just* syntactic sugar for "_exc = X; _exc.__cause__ = Y; raise _exc".
Under PEP 409, that remains true.
Your patch breaks it.
If you want to change the meaning for "raise X from Y", write a new PEP.

History
Date	User	Action	Args
2012年02月26日 21:18:48	ncoghlan	set	recipients: + ncoghlan, pitrou, benjamin.peterson, Arfrever
2012年02月26日 21:18:48	ncoghlan	set	messageid: <1330291128.47.0.506655003796.issue14133@psf.upfronthosting.co.za>
2012年02月26日 21:18:47	ncoghlan	link	issue14133 messages
2012年02月26日 21:18:47	ncoghlan	create

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