the simplest async hello world

import time
import asyncio

loop = asyncio.get_event_loop()

async def a_print(v):
    time.sleep(v)
    print(v)
    return v*2

async def main():
    loop.create_task(a_print(2))
    print(1)

if __name__ == '__main__':
    loop.run_until_complete(main())

# 1
# 2