python3 requests使用连接池
import requests
session = requests.Session()
session.mount('http://', requests.adapters.HTTPAdapter(pool_connections=1, pool_maxsize=20, max_retries=3))
session.get("http://lr.cool")
import requests
session = requests.Session()
session.mount('http://', requests.adapters.HTTPAdapter(pool_connections=1, pool_maxsize=20, max_retries=3))
session.get("http://lr.cool")