[Python-Dev] Requesting pronouncement on PEP 463: Exception-catching expressions (original) (raw)

Gustavo Carneiro gjcarneiro at gmail.com
Wed Mar 12 17:41:14 CET 2014

On 12 March 2014 15:21, Brett Cannon <brett at python.org> wrote:

On Wed, Mar 12, 2014 at 11:16 AM, Chris Angelico <rosuav at gmail.com> wrote: On Thu, Mar 13, 2014 at 2:14 AM, Brett Cannon <brett at python.org> wrote: > While I'm +0 on the idea, I'm -1 on the syntax;

I just don't like having a > colon in an expression.

lambda: is an expression and has a colon in it.

It would be weird to use except: without a colon IMHO, because we are already used to write except: with colon everywhere else...

Which is why there are alternatives listed, and the best four of them

(including the proposed one) ranked.

value = (expr except Exception then default) would be fine with me.

Do we really need to introduce a new keyword 'then' ?

I'm +1 on the original proposal (expr except Exception: default)

-- Gustavo J. A. M. Carneiro Gambit Research "The universe is always one step beyond logic." -- Frank Herbert -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.python.org/pipermail/python-dev/attachments/20140312/5359204d/attachment.html>

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