python 线程池

from concurrent.futures import ThreadPoolExecutor
import requests


def task(url):
    ret = requests.get(url=url)
    # print(ret.status_code, ret.url)
    return ret


def done(request, *args, **kwargs):  #
    result = request.result()
    print(result.url, result.status_code, args, kwargs)


pool = ThreadPoolExecutor(5)
urllist = [
    "https://baidu.com",
    "https://github.com",
    "http://qq.com",
    "http://taobao.com",
    "https://www.360.cn",
    "http://www.jd.com",
]

for url in urllist:
    v = pool.submit(task, url)
    v.add_done_callback(done)
pool.shutdown(wait=True)

 结果：

https://www.qq.com?fromdefault 200 () {}
http://www.baidu.com/ 200 () {}
https://www.360.cn/ 200 () {}
https://www.taobao.com/ 200 () {}
https://www.jd.com/ 200 () {}
https://github.com/ 200 () {}