import asyncio
import time


async def main():
    print(f"{time.ctime()}  Hello!")
    await asyncio.sleep(1.0)
    print(f"{time.ctime()}  Goodbye!")
    loop.stop()


def blocking():
    # This code only works because our blocking sleep is less than the main functions Asyncio sleep call. If
    # this function used here was time.sleep(2) then we would get a RuntimeError because the eventloop was
    # Already closed when the Future's job completed
    time.sleep(0.5)
    print(f"{time.ctime()} Hello from thread!")


loop = asyncio.get_event_loop()

loop.create_task(main())
# Returns a asyncio Future not a asyncio Task
loop.run_in_executor(None, blocking)

loop.run_forever()

# Deprecated Style
# pending = asyncio.Task.all_tasks(loop=loop)
pending = asyncio.all_tasks(loop=loop)

# asyncio.gather also returns a future
group = asyncio.gather(*pending)
print(f"The type returned of asyncio.gather is: {type(group)}")
loop.run_until_complete(group)
loop.close()