[Python-ideas] [Python-Dev] yield * (Re: Missing operator.call)

[Leif Walsh]

[+python-ideas -python-dev]

On Sat, Feb 7, 2009 at 8:50 PM,  <glyph at divmod.com> wrote:
> has anyone considered the syntax 'yield from iterable'?  i.e.
>
>   def foo():
>       yield 1
>       yield 2
>
>   def bar():
>       yield from foo()
>       yield from foo()
>
> list(bar()) -> [1, 2, 1, 2]
>
> I suggest this because (1) it's already what I say when I see the 'for'
> construct, i.e. "foo then *yield*s all results *from* bar", and (2) no new
> keywords are required.

I still don't understand why such a construct is necessary.  Is

>>> for elt in iterable:
>>>     yield elt

really all that bad?  Maybe it's a little silly-looking, but at least
it's easy to understand and not _that_ hard to type....

-- 
Cheers,
Leif