Cannot open url link using urllib.request

[Askic]

I'd like just to add that this program works without any exception:

import urllib.request

sp_link = r'https://www.kernel.org/doc/readme/drivers-staging-lustre-README.txt'
count = 0
try:
    with urllib.request.urlopen(sp_link) as ip_file:
        for line in ip_file:
            count += 1
    print(count)
except urllib.error.HTTPError as e:
    print(e.reason)

I cannot understand what is the problem. It must be something in the URL address.