Fix single-element tuple typos in idlelib and test_email

Lib/idlelib/idle_test/test_redirector.py

@@ -64,8 +64,11 @@ def tearDown(self):
         self.redir.close()
 
     def test_repr(self):  # partly for 100% coverage
-        self.assertIn('Redirector', repr(self.redir))
-        self.assertIn('Original', repr(self.orig_insert))
+        self.assertRegex(repr(self.redir),
+                         r"^WidgetRedirector\(Text<.+>\)$")
+        self.assertRegex(
+            repr(self.orig_insert),
+            r"^OriginalCommand\(WidgetRedirector\(Text<.+>\), 'insert'\)$")
 
     def test_register(self):
         self.assertEqual(self.text.get('1.0', 'end'), '\n')

Lib/idlelib/redirector.py

@@ -48,7 +48,7 @@ def __init__(self, widget):
 
     def __repr__(self):
         w = self.widget
-        return f"{self.__class__.__name__,}({w.__class__.__name__}<{w._w}>)"
+        return f"{self.__class__.__name__}({w.__class__.__name__}<{w._w}>)"
 
     def close(self):
         "Unregister operations and revert redirection created by .__init__."
@@ -143,7 +143,7 @@ def __init__(self, redir, operation):
         self.orig_and_operation = (redir.orig, operation)
 
     def __repr__(self):
-        return f"{self.__class__.__name__,}({self.redir!r}, {self.operation!r})"
+        return f"{self.__class__.__name__}({self.redir!r}, {self.operation!r})"
 
     def __call__(self, *args):
         return self.tk_call(self.orig_and_operation + args)

Lib/test/test_email/test_message.py

@@ -582,7 +582,7 @@ def _make_subtype_test_message(self, subtype):
             ('From', 'bar@foo.com'),
             ]
         if subtype != 'no_content':
-            ('content-shadow', 'Logrus'),
+            msg_headers.append(('content-shadow', 'Logrus'))
         msg_headers.append(('X-Random-Header', 'Corwin'))
         if subtype == 'text':
             payload = ''