import requests
import urllib3
from retry import retry

def download(url):

	@retry((requests.exceptions.RequestException, urllib3.exceptions.HTTPError), tries=3, delay=3)
	def _make_request(url):
		response = requests.get(url)
	    response.raise_for_status()
		return response

	response = _make_request(url)

    for chunk in response.iter_content(chunk_size=32 * 1024):
        yield chunk

result = list(download('http://httpstat.us/500'))