[1.2.X] Fixed errors introduced in r14280 when running Django tests under Python < 2.6.

class EmptyQuerySetTests(TestCase):

    def test_emptyqueryset_values(self):

        "#14366 -- calling .values() on an EmptyQuerySet and then cloning that should not cause an error"

        # #14366 -- calling .values() on an EmptyQuerySet and then cloning that

        # should not cause an error

        self.assertEqual(list(Number.objects.none().values('num').order_by('num')), [])

    def test_values_subquery(self):

# the way Python handles list() calls internally. Thus, we skip the tests for

# Python 2.6.

if sys.version_info[:2] != (2, 6):

    class OrderingLoopTests(TestCase):

    class OrderingLoopTests(BaseQuerysetTest):

        def setUp(self):

            generic = NamedCategory.objects.create(name="Generic")

            t1 = Tag.objects.create(name='t1', category=generic)

            t2 = Tag.objects.create(name='t2', parent=t1, category=generic)

            t3 = Tag.objects.create(name='t3', parent=t1)

            t4 = Tag.objects.create(name='t4', parent=t3)

            t5 = Tag.objects.create(name='t5', parent=t3)

        def test_infinite_loop(self):

            # If you're not careful, it's possible to introduce infinite loops via

            # default ordering on foreign keys in a cycle. We detect that.

            self.assertRaises(

            self.assertRaisesMessage(

                FieldError,

                'Infinite loop caused by ordering.',

                LoopX.objects.all