Oh my.  FWIW I think that we need to implement this differently. I don't think it matters where, say, an asyncio.Lock was instantiated. It can be created anywhere. So IMO its __init__ shouldn't try to capture the current loop -- there's no need for that. The loop can be and should be captured when the first `await lock.acquire()` is called.

I'm writing a piece of code right now that would need to jump through the hoops to simply create a new `asyncio.Lock()` in a place where there's no asyncio loop yet.