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[Python-Dev] PEP 409 update [was: PEP 409 - final?]
Guido van Rossumguido at python.org
Fri Feb 3 03:54:04 CET 2012
On Thu, Feb 2, 2012 at 6:49 PM, Nick Coghlan <ncoghlan at gmail.com> wrote:> On Fri, Feb 3, 2012 at 12:42 PM, Ethan Furman <ethan at stoneleaf.us> wrote:>> Nick Coghlan wrote:>>>>>> FWIW, I expect the implementation will *allow* "raise exc from>>> Ellipsis" as an odd synonym for "raise exc".>>>>>> Are we sure we want that? Raising from something not an exception seems>> counter-intuitive (None being the obvious exception).>> It isn't so much a matter of wanting it as "Is it problematic enough> to put any effort into preventing it?" (since allowing it is a natural> outcome of the obvious implementation).I would say yes we want that. It would be strange if you couldn'treset a variable explicitly to its default value. I don't expectpeople to do this often. But somebody might want to do a deep copy ofan exception (with some systematic change), or there might be otherreasons. I'm sure a few Python zen items apply here. :-)-- --Guido van Rossum (python.org/~guido)
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