Bright ideas sought: detecting uasyncio

[peterhinch]

I raised this as an issue #11530 but I figured that not everyone sees these.

I'm after a function which can detect whether a piece of synchronous code was called from synchronous code or from a task. This is my best effort:

def asyncio_running():
    try:
        z = asyncio.current_task()
    except:
        return False
    return True

It works, but as the issue reports, uasyncio retains state. If I run an application which uses uasyncio, then at the REPL, run code which uses that function, it will return True regardless of the facts.

Can anyone think of a non-hacky workround?

[jimmo]

I reckon we should fix this in uasyncio. See #11562