Fix import of HTTPError (GH-22304)

Import HTTPError from urllib.error instead of urllib.request.

Lib/distutils/command/upload.py

@@ -9,7 +9,8 @@ import os
 import io
 import hashlib
 from base64 import standard_b64encode
-from urllib.request import urlopen, Request, HTTPError
+from urllib.error import HTTPError
+from urllib.request import urlopen, Request
 from urllib.parse import urlparse
 from distutils.errors import DistutilsError, DistutilsOptionError
 from distutils.core import PyPIRCCommand

Lib/distutils/tests/test_upload.py

@@ -2,7 +2,7 @@
 import os
 import unittest
 import unittest.mock as mock
-from urllib.request import HTTPError
+from urllib.error import HTTPError
 
 from test.support import run_unittest