my question is 1st one is concurrent but 2nd one is not, how and please correct me, what i miss and what should i know more thank you import asyncio # 1st code async def say(what, when): await asyncio.sleep(when) print(what) loop = asyncio.get_event_loop() loop.create_task(say('first hello', 2)) loop.create_task(say('second hello', 1)) loop.run_forever() loop.close() ''' result
second hello first hello '''
# 2nd code async def say(what, when): await asyncio.sleep(when) print(what) async def main(loop): yield from loop.create_task(say('first hello', 2)) yield from loop.create_task(say('second hello', 1)) print('close') loop = asyncio.get_event_loop() loop.run_until_complete(main(loop)) loop.close() ''' result
first hello second hello '''