Raising an error inside a task of a task group can produce: `RuntimeError: called 'started' twice on the same task status` about anyio HOT 7 OPEN

asyncio.shield() is an anti-pattern I would very much like to stay away from. I'll get to the bottom of this over Easter.

from anyio.

Understandable. Alternatively one could check if the future got cancled and only raise an error if this is not the case.

from anyio.

Understandable. Alternatively one could check if the future got cancled and only raise an error if this is not the case.

anyio/src/anyio/_backends/_asyncio.py

Line 621 in 05a3d02

self._future.set_result(value)

Sounds much better already.

from anyio.

I modified my pull request with the alternative solution, but I am not sure if the code on line 628 and 629 should also be executed when the future is cancelled.
https://github.com/dominik-schwabe/anyio/blob/d9179b4750b49ab593c6692e30c8c62f7e295dc4/src/anyio/_backends/_asyncio.py#L619-L629

from anyio.

No worries, I'll have a look within a couple days.

from anyio.

Thanks! I just see this thread; having exactly the same issue. :-) Let me know if there's anything I can help with or test.

from anyio.