How can I await inside future-like object's __await__?

Question

PEP 0492 adds new __await__ magic method. Object that implements this method becomes future-like object and can be awaited using await. It

Answer 1

Use a decorator.

def chain__await__(f):
    return lambda *args, **kwargs: f(*args, **kwargs).__await__()

Then write __await__ as a native coroutine.

async def new_sleep():
    await asyncio.sleep(2)

class Waiting:
    @chain__await__
    async def __await__(self):
        return await new_sleep()