It will be a very rare case — you need a generator that produces an infinite series of values with a try..finally block.
If I'm not mistaken it'll be any generator with `break` before it yieldedlast value(and with try...finally block that is usually context manager).
def gen(): async with cm_long_aexit(): yield 1 yield 2 yield 3 async for i in gen(): if i == 2: break
We can maintain a weak set of ‘aclose’ tasks in the event loop, and make it a public and documented property. That way you’ll be able to call gather() with a timeout on that list before closing the loop.
It solves the issue.
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