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

[Ethan Furman]

On 02/21/2014 03:29 PM, Greg Ewing wrote:
> Antoine Pitrou wrote:
>
>>>    lst = [1, 2]
>>>    value = lst[2] except IndexError: "No value"
>>
>> the gain in concision is counterbalanced by a loss in
>> readability,
>
> This version might be more readable:
>
>     value = lst[2] except "No value" if IndexError

It does read nicely, and is fine for the single, non-nested, case (which is probably the vast majority), but how would 
it handle nested exceptions?

--
~Ethan~