This is a simple example how to connect pygame with asyncio.
The example uses a queue for handling pygame events. It runs a loop (pygame_event_loop) that is requesting pygame events with blocking (pygame.event.wait()). Using pygame.event.get() would produce high CPU load because it is not blocking. This event loop is started with run_in_executor that uses a thread pool (you could set the size of the thread pool to 1). A direct call from the main thread would not work because asyncio expects that functions use await for blocking operations (or yield from in older Python versions). The asyncio queue is not thread safe, so you have to use run_coroutine_threadsafe for putting events on the queue.
Handling events now works by using await event_queue.get() in a coroutine.
def pygame_event_loop(loop, event_queue):
while True:
event = pygame.event.wait()
asyncio.run_coroutine_threadsafe(event_queue.put(event), loop=loop)The image of the ball is copied from the pygame documentation.