add space
diff --git a/Lib/test/test_descr.py b/Lib/test/test_descr.py
index 0861bcc..b17bdbf 100644
--- a/Lib/test/test_descr.py
+++ b/Lib/test/test_descr.py
@@ -4699,6 +4699,7 @@
         for o in gc.get_objects():
             self.assertIsNot(type(o), X)
 
+
 class DictProxyTests(unittest.TestCase):
     def setUp(self):
         class C(object):