On Jun 23, 2018, at 21:11, Nathaniel Smith wrote:

...

He's asking for an async version of the 'iter' builtin, presumably something like: async def aiter(async_callable, sentinel): while True: value = await async_callable() if value == sentinel: break yield value -n

Yes, exactly (thanks, Nathaniel). Wouldn't that be a useful built-in?

(Greg, I too would be surprised if this were the first time this idea has been raised, but I looked before posting and couldn’t immediately find prior discussion.)

There is an open issue for this: https://bugs.python.org/issue31861. It

2018-06-24 12:30 GMT-07:00 : proposes adding aiter() and anext() as builtins.

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jab@math.brown.edu wrote:

On Jun 23, 2018, at 21:11, Nathaniel Smith mailto:n...@pobox.com> wrote:

He's asking for an async version of the 'iter' builtin, presumably something like: async def aiter(async_callable, sentinel): while True: value = await async_callable() if value == sentinel: break yield value -n

Yes, exactly (thanks, Nathaniel). Wouldn't that be a useful built-in?

Ah, sorry, I misunderstood. I'm surprised this doesn't exist already -- it seems like an obvious thing to have along with the other async features. -- Greg