diff --git a/Lib/compiler/transformer.py b/Lib/compiler/transformer.py
index 9ea09504817..53d30f04af8 100644
--- a/Lib/compiler/transformer.py
+++ b/Lib/compiler/transformer.py
@@ -922,7 +922,7 @@ class Transformer:
             return TryFinally(self.com_node(nodelist[2]),
                               self.com_node(nodelist[5]),
                               lineno=nodelist[0][2])
-        
+
         #tryexcept:  [TryNode, [except_clauses], elseNode)]
         clauses = []
         elseNode = None
diff --git a/Lib/test/test_mailbox.py b/Lib/test/test_mailbox.py
index e17de5dfdd0..474354f545d 100644
--- a/Lib/test/test_mailbox.py
+++ b/Lib/test/test_mailbox.py
@@ -738,12 +738,12 @@ class _TestMboxMMDF(TestMailbox):
         time.sleep(0.5)
         self.assertRaises(mailbox.ExternalClashError,
                           self._box.lock)
-        
+
         # Wait for child to exit.  Locking should now succeed.
         exited_pid, status = os.waitpid(pid, 0)
         self._box.lock()
         self._box.unlock()
-        
+
 
 class TestMbox(_TestMboxMMDF):
 
diff --git a/Lib/test/test_warnings.py b/Lib/test/test_warnings.py
index 46638149a9f..a7ccb6b292d 100644
--- a/Lib/test/test_warnings.py
+++ b/Lib/test/test_warnings.py
@@ -92,7 +92,7 @@ class TestModule(unittest.TestCase):
                           warnings._setoption, 'ignore:2::4:-5')
         warnings._setoption('error::Warning::0')
         self.assertRaises(UserWarning, warnings.warn, 'convert to error')
-        
+
 
 def test_main(verbose=None):
     # Obscure hack so that this test passes after reloads or repeated calls