The following code works as expected:

import asyncio
from collections.abc import AsyncIterable, Iterable


# In reality, this is more complicated.
async def create_asynchronous_iterable() -> AsyncIterable[int]:
    for k in range(3):
        yield k


# In reality, this is more complicated.
def do_something(it: Iterable[int]) -> None:
    for k in it:
        print(k, end=" ")
    print()


async def main():
    async_it = create_asynchronous_iterable()
    it = [k async for k in async_it]
    do_something(it)


if __name__ == "__main__":
    asyncio.run(main())  # Prints "0 1 2 ".

How can I turn it into an iterable that avoids having all items in memory at once, e.g. a generator?

I tried to replace the declaration of main as follows:

async def main():
    async_it = create_asynchronous_iterable()

    def create_iterable() -> Iterable[int]:
        async for k in async_it:
            yield k
    
    it = create_iterable()
    do_something(it)

However, this leads to:

SyntaxError: 'async for' outside async function

Is there a way to circumvent this limitation?