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[Q] is 'yield from' syntax sugar for 'for'+'yield'?

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Question about 'yield from'.

I understand that::

    yield from xs

is syntax suger of::

    for x in xs:
      yield x

And::

    val = yield from xs

is same as::

    for x in xs:
      ret = yield x
    val = ret

Is it true? Do I understand correctly?


quote from
https://docs.python.org/3/whatsnew/3.3.html#pep-380-syntax-for-delegating-to-a-subgenerator
> For simple iterators, yield from iterable is essentially
> just a shortened form of for item in iterable: yield item:

--
regards,
kwatch

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[Q] is 'yield from' syntax sugar for 'for'+'yield'? Makoto Kuwata <kwatch@gmail.com> - 2014-08-14 18:35 +0900
  Re: [Q] is 'yield from' syntax sugar for 'for'+'yield'? Marko Rauhamaa <marko@pacujo.net> - 2014-08-14 12:57 +0300
  Re: [Q] is 'yield from' syntax sugar for 'for'+'yield'? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-08-14 23:43 +1000

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