On 22/02/2014 16:36, Brett Cannon wrote: > > On Sat, Feb 22, 2014 at 4:13 AM, Antoine Pitrou <solipsis at pitrou.net > <mailto:solipsis at pitrou.net>> wrote: > > On Fri, 21 Feb 2014 09:37:29 -0800 > Guido van Rossum <guido at python.org <mailto:guido at python.org>> wrote: > > I'm put off by the ':' syntax myself (it looks to me as if > someone forgot a > > newline somewhere) but 'then' feels even weirder (it's been > hard-coded in > > my brain as meaning the first branch of an 'if'). > > Would 'else' work rather than 'then'? > > > thing = stuff['key'] except KeyError else None > > That reads to me like the exception was silenced and only if there is > no exception the None is returned, just like an 'else' clause on a > 'try' statement. > > I personally don't mind the 'then' as my brain has been hard-coded to > mean "the first branch of a statement" so it's looser than being > explicitly associated with 'if' but with any multi-clause statement. > I read *except* as 'except if', and *:* as 'then' (often), so the main proposal reads naturally to me. I'm surprised to find others don't also, as that's the (only?) pronunciation that makes the familiar if-else and try-except constructs approximate English. Isn't adding a new keyword (*then*) likely to be a big deal? There is the odd example of its use as an identifier, just in our test code: http://hg.python.org/cpython/file/0695e465affe/Lib/test/test_epoll.py#l168 http://hg.python.org/cpython/file/0695e465affe/Lib/test/test_xmlrpc.py#l310 Jeff Allen -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.python.org/pipermail/python-dev/attachments/20140222/efc3fc8c/attachment.html>
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