Function supervisor

19-concurrency/spinner_async_experiment.py:26–31

()

    return 42

async def supervisor() -> int:
    spinner = asyncio.create_task(spin('thinking!'))  # <1>
    print(f'spinner object: {spinner}')  # <2>
    result = await slow()  # <3>
    spinner.cancel()  # <5>
    return result
# end::SPINNER_ASYNC_EXPERIMENT[]

def main() -> None: