Hynek Schlawack added the comment:
Such an idiom is IMHO not the main usefulness of this function tho.
As an (untested) example, something like
async def f(n):
await asyncio.sleep(n)
return n
for f in asyncio.as_completed([f(3), f(2), f(1)]):
print(await f)
will print:
1
2
3
That’s *super* useful if you’re coordinating multiple independent external
systems and need to process their results as soon as they arrive (and not once
they’re *all* done).
Maybe it always worked by accident for me but it’s my understanding, that that
is what this function is for (and I haven’t found another way to achieve it).
That’s why it would be nice if there’d be authoritative docs on what it’s
supposed to do. :)
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue27589>
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