On: The Python yield keyword explained

[eurleif]

Early return is definitely needed. I guess you could make bare `return` early return, and `return None` the way to yield None, but that's kind of confusing.

[gejjaxxita → eurleif]

I agree that would be confusing, but I question that early return is needed - I don't think I've ever seen a generator example where early return is used. It could be that it's because I haven't seen enough examples of course. Please share some examples of a generator with early return which can't be accomplished easily and clearly in some other way.

[eurleif → gejjaxxita]

    def first10(*iterables):
        n = 0
        for iterable in iterables:
            for item in iterable:
                yield item
                n += 1
                if n == 10:
                    return

[csense → eurleif]

This is actually a one-liner, because itertools is awesome:

  first10 = lambda iterables : itertools.islice(itertools.chain(*iterables), 0, 10)