On Fri, Feb 21, 2014 at 9:32 AM, Antoine Pitrou <solipsis@pitrou.net> wrote:
On Sat, 22 Feb 2014 02:52:59 +1100 Chris Angelico <rosuav@gmail.com> wrote:
On Sat, Feb 22, 2014 at 1:34 AM, Brett Cannon <brett@python.org> wrote:
While I like the general concept, I agree that it looks too much like a crunched statement; the use of the colon is a non-starter for me. I'm sure I'm not the only one whose brain has been trained to view a colon in Python to mean "statement", period. This goes against that syntactic practice and just doesn't work for me.
I'm -1 with the current syntax, but it can go into the + range if a better syntax can be chosen.
We bikeshedded that extensively on -ideas. The four best options are:
value = (expr except Exception: default)
-0.5
value = (expr except Exception -> default)
-0.5
value = (expr except Exception pass default)
-1 (looks terribly weird)
value = (expr except Exception then default)
+0.5 But I'm aware it requires reserving "then" as a keyword, which might need a prior SyntaxWarning.
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'). I am going to sleep on this. -- --Guido van Rossum (python.org/~guido)