ensure_future scheduled corotine

ensure_future.py

import asyncio


async def d():
    print('d start')
    await asyncio.sleep(2)
    print('d stop')

async def f():
    print('f start')
    asyncio.ensure_future(d())
    await asyncio.sleep(3)
    print('f stop')

loop = asyncio.get_event_loop()
loop.run_until_complete(f())