Issue #17532: Prevent exception when changing key sets if Options menu is empty.

ned-deily · ned-deily · commit 8e8b9ba753bf · 2013-07-20T15:06:26.000-07:00
diff --git a/Lib/idlelib/EditorWindow.py b/Lib/idlelib/EditorWindow.py
@@ -821,7 +821,11 @@ def ApplyKeybindings(self):
                     menuEventDict[menu[0]][prepstr(item[0])[1]] = item[1]
         for menubarItem in self.menudict:
             menu = self.menudict[menubarItem]
-            end = menu.index(END) + 1
+            end = menu.index(END)
+            if end is None:
+                # Skip empty menus
+                continue
+            end += 1
             for index in range(0, end):
                 if menu.type(index) == 'command':
                     accel = menu.entrycget(index, 'accelerator')
