fixup! Try native support instead

tests/shell/tests.py

@@ -1,7 +1,6 @@
 from django import __version__
 from django.core.management import call_command
-from django.test import mock
-from django.test import SimpleTestCase
+from django.test import mock, SimpleTestCase
 from django.test.utils import patch_logger
 from django.utils.six import StringIO