From the docs it seems the recommended way to kickstart a asyncio application is to use asyncio.run(), so my application looks like this:

async def async_main():
    # Everything here can use asyncio.create_task():
    o = ObjectThatMustBeKeptReferenced()
    create_tasks_and_register_callbacks(o)

    # Wait forever, ugly:
    while True:
        await asyncio.sleep(10000)

asyncio.run(async_main())

This infinite loop at the end of async_main() feels very wrong. In other languages, there is where I would call the event loop forever. So I tried this:

def main():
    loop = asyncio.get_event_loop()

    # Everything here can use asyncio.create_task():
    o = ObjectThatMustBeKeptReferenced()
    create_tasks_and_register_callbacks(o)

    # Wait forever, pretty:
    loop.run_forever()

main()

The problem here is this will fail with an error of the sorts RuntimeError: no running event loop when I call asyncio.create_task() inside my functions, even though the event loop is created and registered on the thread.

What is the pythonic, one way of sleeping forever on the asyncio event loop?