python 协程爬虫

import asyncio
import requests
import time

asyncio def run(url):
    prinrt(url)
    loop= asyncio. get_event_loop()
    res =await loop. run_in_executor(None,requests. get,url)
    print(res. url)

url_list=["http://www.baidu.com","http://mengsec com"]
tasks=[asyncio. ensure_future(run(url)) for url in url_list]
loop=asyncio. get_event_loop()
loop. run_until_complete(asyncio. wait(tasks))