import urllib.request
import json

def requete(url, nb = 10, debug=False):
    retry = nb
    data = None
    while retry:
        try:
            data = urllib.request.urlopen(url).read()
        except (urllib.request.HTTPError, urllib.request.URLError) as e:
            retry -=1                                                                                           
            print("RETRYING...", retry, str(e))
        else:
            retry = 0
    if data is None:
        return None
    r = json.loads(data.decode("utf8"))
    if debug: 
        print("Rep     :", data)
        print("Json    :", r)
    return r