To handle destruction of resources especially during exceptions, it would be nice if there were some way to provide coroutines/tasks that run at the termination or closure of an event loop.  There are a lot of api options here.  Maybe a simple one would be to have close() call a run_until_closed() function that starts all of these and steps the loop to wait for them, before closing, and provide run_close() functions to queue them for delay.

asyncio.run() does the task

I'm sorry, is this closure an error? Could you explain more how to use asyncio.run() to clean up resources when an unhandled exception is thrown? Is this new with a recent python improvement?

asyncio.run() present since Python 3.7
After the main coroutine finish, it cancels all background tasks and waits for their termination.

Background tasks can use old good `try/finally` for resources cleanup.
An additional API is not required IMHO.

hey, I don't have the capacity to stay on this, but thanks for the attention, time, and clear response.

there are of course other situations such as returning a resource to library code or manual loop management, but I don't have the use case present any more.

maybe an aatexit library could patch this in if needed.