when you use some third part library,you want to print out these libraries debug info may help you dailogous,code as follows:
import logging
from urllib3.connectionpool import log
console = logging.StreamHandler()
console.setLevel(logging.INFO)
formatter = logging.Formatter("%(asctime)s %(levelname)s %(message)s")
console.setFormatter(formatter)
log.addHandler(console)
reference:http://blog.sina.com.cn/s/blog_51294ca50100gc3x.html