Implementing an asynchronous iterator

Question

Per PEP-492 I am trying to implement an asynchronous iterator, such that I can do e.g.

async for foo in bar:
    ...

Here is a trivial exa

Answer 1

Asynchronous iterators have been implemented in Python 3.6 - see PEP-525

Then you don't need your TestImplementation at all in order to use async for. You can just use yield (example taken from PEP-525):

async def ticker(delay, to):
    """Yield numbers from 0 to `to` every `delay` seconds."""
    for i in range(to):
        yield i
        await asyncio.sleep(delay)

You can then use async for as you would expect:

async for i in ticker(1, 10):                                                                     
    print(f'Tick #{i}')