diff --git a/tests/contrib/test__appengine_ndb.py b/tests/contrib/test__appengine_ndb.py
index 30b4dc641..6bb1cde0d 100644
--- a/tests/contrib/test__appengine_ndb.py
+++ b/tests/contrib/test__appengine_ndb.py
@@ -166,7 +166,3 @@ def test__from_base_type_bad_json(self):
         creds_prop = TestNDBModel.creds
         creds_json = '{JK-I-AM-NOT-JSON'
         self.assertIsNone(creds_prop._from_base_type(creds_json))
-
-
-if __name__ == '__main__':  # pragma: NO COVER
-    unittest2.main()
diff --git a/tests/contrib/test_appengine.py b/tests/contrib/test_appengine.py
index 03beed5e8..de7821c30 100644
--- a/tests/contrib/test_appengine.py
+++ b/tests/contrib/test_appengine.py
@@ -1081,7 +1081,3 @@ def test_build_and_parse_state(self):
             appengine._parse_state_value(state, UserMock()))
         with self.assertRaises(appengine.InvalidXsrfTokenError):
             appengine._parse_state_value(state[1:], UserMock())
-
-
-if __name__ == '__main__':  # pragma: NO COVER
-    unittest2.main()
diff --git a/tests/contrib/test_devshell.py b/tests/contrib/test_devshell.py
index b9b2496fb..9fcafd4d0 100644
--- a/tests/contrib/test_devshell.py
+++ b/tests/contrib/test_devshell.py
@@ -270,7 +270,3 @@ def test_serialization_data(self):
             credentials = DevshellCredentials()
             with self.assertRaises(NotImplementedError):
                 getattr(credentials, 'serialization_data')
-
-
-if __name__ == '__main__':  # pragma: NO COVER
-    unittest2.main()
diff --git a/tests/contrib/test_dictionary_storage.py b/tests/contrib/test_dictionary_storage.py
index 0cb975f76..b1cdb6d45 100644
--- a/tests/contrib/test_dictionary_storage.py
+++ b/tests/contrib/test_dictionary_storage.py
@@ -104,7 +104,3 @@ def test_delete(self):
 
         self.assertNotIn(key, dictionary)
         self.assertIsNone(storage.get())
-
-
-if __name__ == '__main__':  # pragma: NO COVER
-    unittest2.main()
diff --git a/tests/contrib/test_django_orm.py b/tests/contrib/test_django_orm.py
index 57a9d6bb9..2924bea1e 100644
--- a/tests/contrib/test_django_orm.py
+++ b/tests/contrib/test_django_orm.py
@@ -317,7 +317,3 @@ def __init__(self, set_store=False, *args, **kwargs):
         self.deleted = False
 
     credentials = CredentialsField()
-
-
-if __name__ == '__main__':  # pragma: NO COVER
-    unittest2.main()
diff --git a/tests/contrib/test_flask_util.py b/tests/contrib/test_flask_util.py
index c261d9708..f4fe0e924 100644
--- a/tests/contrib/test_flask_util.py
+++ b/tests/contrib/test_flask_util.py
@@ -528,7 +528,3 @@ def test_delete(self):
             self.oauth2.storage.delete()
 
             self.assertNotIn('google_oauth2_credentials', flask.session)
-
-
-if __name__ == '__main__':  # pragma: NO COVER
-    unittest2.main()
diff --git a/tests/contrib/test_gce.py b/tests/contrib/test_gce.py
index cb65bd612..197402051 100644
--- a/tests/contrib/test_gce.py
+++ b/tests/contrib/test_gce.py
@@ -147,7 +147,3 @@ def test_save_to_well_known_file(self):
                 save_to_well_known_file(credentials)
         finally:
             os.path.isdir = ORIGINAL_ISDIR
-
-
-if __name__ == '__main__':  # pragma: NO COVER
-    unittest2.main()
diff --git a/tests/contrib/test_keyring_storage.py b/tests/contrib/test_keyring_storage.py
index d30ea87dd..3ebf48b05 100644
--- a/tests/contrib/test_keyring_storage.py
+++ b/tests/contrib/test_keyring_storage.py
@@ -169,7 +169,3 @@ def acquire(self):
 
     def release(self):
         self._release_count += 1
-
-
-if __name__ == '__main__':  # pragma: NO COVER
-    unittest2.main()
diff --git a/tests/contrib/test_locked_file.py b/tests/contrib/test_locked_file.py
index ecaf9ced5..384bef3f4 100644
--- a/tests/contrib/test_locked_file.py
+++ b/tests/contrib/test_locked_file.py
@@ -242,7 +242,3 @@ def test_unlock_and_close(self):
         instance, opener = self._make_one()
         instance.unlock_and_close()
         opener.unlock_and_close.assert_called_with()
-
-
-if __name__ == '__main__':  # pragma: NO COVER
-    unittest2.main()
diff --git a/tests/contrib/test_multistore_file.py b/tests/contrib/test_multistore_file.py
index dec28e21a..de54cb02b 100644
--- a/tests/contrib/test_multistore_file.py
+++ b/tests/contrib/test_multistore_file.py
@@ -381,7 +381,3 @@ def test__delete_credential_nonexistent(self):
             multistore._data = {}
             multistore._delete_credential('nonexistent_key')
             self.assertTrue(write_mock.called)
-
-
-if __name__ == '__main__':  # pragma: NO COVER
-    unittest2.main()
diff --git a/tests/contrib/test_xsrfutil.py b/tests/contrib/test_xsrfutil.py
index 0f66edf2e..363a189eb 100644
--- a/tests/contrib/test_xsrfutil.py
+++ b/tests/contrib/test_xsrfutil.py
@@ -291,7 +291,3 @@ def testGenerateAndValidateToken(self):
                                                  None,
                                                  TEST_USER_ID_1,
                                                  action_id=TEST_ACTION_ID_1))
-
-
-if __name__ == '__main__':  # pragma: NO COVER
-    unittest2.main()
diff --git a/tests/test__helpers.py b/tests/test__helpers.py
index 581b32eeb..21a4af8a9 100644
--- a/tests/test__helpers.py
+++ b/tests/test__helpers.py
@@ -117,7 +117,3 @@ def test_bad_input(self):
         bad_string = b'+'
         with self.assertRaises((TypeError, binascii.Error)):
             _urlsafe_b64decode(bad_string)
-
-
-if __name__ == '__main__':  # pragma: NO COVER
-    unittest2.main()
diff --git a/tests/test__pure_python_crypt.py b/tests/test__pure_python_crypt.py
index c20a25c0a..754b29d7d 100644
--- a/tests/test__pure_python_crypt.py
+++ b/tests/test__pure_python_crypt.py
@@ -178,7 +178,3 @@ def test_from_string_bogus_key(self):
         key_bytes = 'bogus-key'
         with self.assertRaises(ValueError):
             RsaSigner.from_string(key_bytes)
-
-
-if __name__ == '__main__':  # pragma: NO COVER
-    unittest2.main()
diff --git a/tests/test__pycrypto_crypt.py b/tests/test__pycrypto_crypt.py
index d871e7ceb..99e968a7d 100644
--- a/tests/test__pycrypto_crypt.py
+++ b/tests/test__pycrypto_crypt.py
@@ -69,7 +69,3 @@ def test_from_string_bad_key(self):
         key_bytes = 'definitely-not-pem-format'
         with self.assertRaises(NotImplementedError):
             PyCryptoSigner.from_string(key_bytes)
-
-
-if __name__ == '__main__':  # pragma: NO COVER
-    unittest2.main()
diff --git a/tests/test_client.py b/tests/test_client.py
index 805883511..8099538f6 100644
--- a/tests/test_client.py
+++ b/tests/test_client.py
@@ -2377,7 +2377,3 @@ def test_FromResponse_with_expires_in(self, utcnow):
         expected_result = DeviceFlowInfo(self.DEVICE_CODE, self.USER_CODE,
                                          None, self.VER_URL, expire)
         self.assertEqual(result, expected_result)
-
-
-if __name__ == '__main__':  # pragma: NO COVER
-    unittest2.main()
diff --git a/tests/test_clientsecrets.py b/tests/test_clientsecrets.py
index 8d4833a73..5065e310d 100644
--- a/tests/test_clientsecrets.py
+++ b/tests/test_clientsecrets.py
@@ -279,7 +279,3 @@ def test_without_cache(self):
         client_type, client_info = clientsecrets.loadfile(VALID_FILE)
         self.assertEqual('web', client_type)
         self.assertEqual('foo_client_secret', client_info['client_secret'])
-
-
-if __name__ == '__main__':  # pragma: NO COVER
-    unittest2.main()
diff --git a/tests/test_crypt.py b/tests/test_crypt.py
index d7dcc4fe3..55e60d954 100644
--- a/tests/test_crypt.py
+++ b/tests/test_crypt.py
@@ -310,7 +310,3 @@ def test_success(self, verify_sig, verify_time, check_aud):
         verify_time.assert_called_once_with(payload_dict)
         check_aud.assert_called_once_with(payload_dict, audience)
         certs.values.assert_called_once_with()
-
-
-if __name__ == '__main__':  # pragma: NO COVER
-    unittest2.main()
diff --git a/tests/test_file.py b/tests/test_file.py
index 344032762..27f3cab46 100644
--- a/tests/test_file.py
+++ b/tests/test_file.py
@@ -241,7 +241,3 @@ def test_access_token_credentials(self):
         if os.name == 'posix':  # pragma: NO COVER
             mode = os.stat(FILENAME).st_mode
             self.assertEquals('0o600', oct(stat.S_IMODE(mode)))
-
-
-if __name__ == '__main__':  # pragma: NO COVER
-    unittest2.main()
diff --git a/tests/test_jwt.py b/tests/test_jwt.py
index a9f19b740..f567f5d6a 100644
--- a/tests/test_jwt.py
+++ b/tests/test_jwt.py
@@ -331,7 +331,3 @@ class TestHasOpenSSLFlag(unittest2.TestCase):
     def test_true(self):
         self.assertEqual(True, HAS_OPENSSL)
         self.assertEqual(True, HAS_CRYPTO)
-
-
-if __name__ == '__main__':  # pragma: NO COVER
-    unittest2.main()
diff --git a/tests/test_service_account.py b/tests/test_service_account.py
index 31d63b6c8..9c7f44408 100644
--- a/tests/test_service_account.py
+++ b/tests/test_service_account.py
@@ -581,6 +581,3 @@ def test_refresh(self, utcnow):
         token_2 = self.jwt.access_token
         self.assertEquals(self.jwt.token_expiry, T2_EXPIRY_DATE)
         self.assertNotEqual(token_1, token_2)
-
-if __name__ == '__main__':  # pragma: NO COVER
-    unittest2.main()
diff --git a/tests/test_tools.py b/tests/test_tools.py
index b5e07db82..8efe9e1c7 100644
--- a/tests/test_tools.py
+++ b/tests/test_tools.py
@@ -102,7 +102,7 @@ def test_run_flow_no_webserver_explicit_flags(
         self.assertEqual(self.flow.redirect_uri, OOB_CALLBACK_URN)
         self.flow.step2_exchange.assert_called_once_with(
             'auth_code', http=None)
-    
+
     @mock.patch('oauth2client.tools.logging')
     @mock.patch('oauth2client.tools.input')
     def test_run_flow_no_webserver_exchange_error(
@@ -161,7 +161,7 @@ def test_run_flow_webserver_no_code(
             self, webbrowser_open_mock, server_ctor_mock, logging_mock):
         server_ctor_mock.return_value = self.server
         self.server.query_params = {}
-        
+
         # No code found in response
         with self.assertRaises(SystemExit):
             returned_credentials = tools.run_flow(
@@ -193,7 +193,3 @@ def test_run_flow_webserver_fallback(
 class TestMessageIfMissing(unittest2.TestCase):
     def test_message_if_missing(self):
         self.assertIn('somefile.txt', tools.message_if_missing('somefile.txt'))
-
-
-if __name__ == '__main__':  # pragma: NO COVER
-    unittest.main()
diff --git a/tests/test_util.py b/tests/test_util.py
index fcfa37138..9f1d7ed2d 100644
--- a/tests/test_util.py
+++ b/tests/test_util.py
@@ -124,6 +124,3 @@ def test__add_query_parameter(self):
         self.assertEqual(
             util._add_query_parameter('/action', 'a', ' ='),
             '/action?a=+%3D')
-
-if __name__ == '__main__':  # pragma: NO COVER
-    unittest2.main()