[Python-Dev] PEP 380 (yield from a subgenerator) comments

[Guido van Rossum]

On Wed, Mar 25, 2009 at 6:22 AM, Nick Coghlan <ncoghlan at gmail.com> wrote:
> Greg Ewing wrote:
>> Would you be happier if some syntactic way to do that
>> were provided?
>>
>> It could perhaps be done by enhancing the part of the
>> 'for' loop that gets executed upon normal termination
>> of the iterator.
>>
>>   for x in my_iter:
>>     do_something_with(x)
>>   else v:
>>     handle_return_value(v)
>
> I think something like that would actually make the PEP much stronger on
> this front - it would promote the idea of a "final value" for iterators
> as a more fundamental concept that can be worked with in a non-generator
> context.

Hold it right there. Or maybe I should say "in your dreams." Please
don't stretch the scope of the PEP. It's not going to help your cause.

-- 
--Guido van Rossum (home page: http://www.python.org/~guido/)