Exercice 10 - vérificateur de liens

#!/usr/bin/python
# -*- coding: ISO-8859-15 -*-
import urllib2
import sys

def checkurl(url):
    req = urllib2.Request(url)
    try:
        url_handle = urllib2.urlopen(req)
    except urllib2.URLError?:
        return None, None

    headers = url_handle.info()
    return headers['Content-Type']?, headers['Date']?