3 files changed, 7 insertions, 7 deletions

diff --git a/src/mailman_pgp/config/tests/test_config.py b/src/mailman_pgp/config/tests/test_config.py
index d3ef9ea..74f4eb8 100644
--- a/src/mailman_pgp/config/tests/test_config.py
+++ b/src/mailman_pgp/config/tests/test_config.py
@@ -16,7 +16,7 @@
 # this program.  If not, see <http://www.gnu.org/licenses/>.
 
 """"""
-from unittest import TestCase
+import unittest
 
 from pkg_resources import resource_filename, resource_string
 
@@ -26,14 +26,14 @@ from mailman_pgp.config.validator import ConfigValidator
 from mailman_pgp.testing.layers import PGPConfigLayer, PGPLayer
 
 
-class TestConfig(TestCase):
+class TestConfig(unittest.TestCase):
     layer = PGPConfigLayer
 
     def test_name(self):
         self.assertEqual(config.name, 'pgp')
 
 
-class TestConfigs(TestCase):
+class TestConfigs(unittest.TestCase):
     layer = PGPLayer
 
     def setUp(self):
diff --git a/src/mailman_pgp/config/tests/test_converter.py b/src/mailman_pgp/config/tests/test_converter.py
index 842ccc4..551be16 100644
--- a/src/mailman_pgp/config/tests/test_converter.py
+++ b/src/mailman_pgp/config/tests/test_converter.py
@@ -16,14 +16,14 @@
 # this program.  If not, see <http://www.gnu.org/licenses/>.
 
 """"""
-from unittest import TestCase
+import unittest
 
 from mailman_pgp.config.config import Config
 from mailman_pgp.config.converter import ConfigConverter
 from mailman_pgp.testing.layers import PGPLayer
 
 
-class TestConverter(TestCase):
+class TestConverter(unittest.TestCase):
     layer = PGPLayer
 
     def test_builtins(self):
diff --git a/src/mailman_pgp/config/tests/test_validator.py b/src/mailman_pgp/config/tests/test_validator.py
index 10beba6..56e9c54 100644
--- a/src/mailman_pgp/config/tests/test_validator.py
+++ b/src/mailman_pgp/config/tests/test_validator.py
@@ -16,14 +16,14 @@
 # this program.  If not, see <http://www.gnu.org/licenses/>.
 
 """"""
-from unittest import TestCase
+import unittest
 
 from mailman_pgp.config.config import Config
 from mailman_pgp.config.validator import ConfigValidator
 from mailman_pgp.testing.layers import PGPLayer
 
 
-class TestValidator(TestCase):
+class TestValidator(unittest.TestCase):
     layer = PGPLayer
 
     def test_missing_section(self):