from retry import retry
import requests, requests.exceptions

class StatusCodeError(Exception):
    def __init__(self, code, url):
        self.code = code
        self.url = url
    def __str__(self):
        return 'request for {} returned status code {}'.format(self.url, self.code)

@retry((requests.exceptions.ConnectionError, StatusCodeError, ValueError), tries=6, wait=300)
def get(uri, json=False):
    r = requests.get(uri)
    if r.status_code != 200:
        raise StatusCodeError(r.status_code, uri)
    if json:
        return r.json()
    return r