import requests
from urllib3.util.retry import Retry
from requests.adapters import HTTPAdapter
from httplib import HTTPConnection
import logging


HTTPConnection.debuglevel = 1
logging.basicConfig(level=logging.DEBUG)
logging.getLogger().setLevel(logging.DEBUG)
requests_log = logging.getLogger("requests.packages.urllib3")
requests_log.setLevel(logging.DEBUG)
requests_log.propagate = True


s = requests.Session()
retries = Retry(total=5, backoff_factor=0.1)
s.mount('http://', HTTPAdapter(max_retries=retries))

s.get("http://httpstat.us/503")