[Python-ideas] Generators' and iterators' __add__ method

[Guido van Rossum]

It's been proposed many times, but always stumbled on the fact that
the iterator protocol doesn't have a standard implementation -- each
object implementing __next__ would have to be modified separately to
also support __add__.

On Wed, Feb 15, 2012 at 8:20 AM, Yuval Greenfield <ubershmekel at gmail.com> wrote:
> Wouldn't it be nice to add generators and iterators like we can do with
> lists?
>
>     def f():
>         yield 1
>         yield 2
>         yield 3
>
>     def g():
>         yield 4
>         yield 5
>
>     # today
>     for item in itertools.chain(f(), g()):
>         print(item)
>
>     # proposal
>     for item in f() + g():
>         print(item)
>
>
> What do you guys think?
>
> Yuval Greenfield
>
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-- 
--Guido van Rossum (python.org/~guido)