Url abfrage fehler

from urllib import response
from requests import get

url_list = ["https://www.google.com/", "https://www.facebook.com/", "https://www.youtube.com/"]

for url in url_list:
    response = get(url)
    status = response.status_code

    if status >= 400:
        print(url, '---- is 4xx err')
    elif status >= 500:
        print(url, '---- is 5xx err')
    else:
        print(url, '---- is ok')