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Sat Feb 22 02:28:30 CET 2014 · https://mail.python.org/pipermail/python-dev/2014-February/132630.html

On 02/21/2014 05:21 PM, Steven D'Aprano wrote:
> On Sat, Feb 22, 2014 at 01:15:13PM +1300, Greg Ewing wrote:
>>
>> With an except expression, it could be written:
>>
>>     result = computation(int(arg)
>>        except ValueError: abort("Invalid int"))
>
> Nice example! Except I'd lay the code out a bit better to emphasise
> which part is being guarded:
>
>      result = computation(
>                   int(arg) except ValueError: abort("Invalid int")
>                   )
>
> Actually, not quite so nice as I first thought, since you're relying on
> the side-effects of abort() rather than returning a value.

Think of it rather as transforming the exception to be more useful.

--
~Ethan~

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Showing content from https://mail.python.org/pipermail/python-dev/2014-February/132630.html below:

[Python-Dev] PEP 463: Exception-catching expressions