Tkinter rename, step 2: fix imports and add stub modules.
diff --git a/Lib/idlelib/SearchDialog.py b/Lib/idlelib/SearchDialog.py
index d7124d6..6c90d28 100644
--- a/Lib/idlelib/SearchDialog.py
+++ b/Lib/idlelib/SearchDialog.py
@@ -1,4 +1,4 @@
-from Tkinter import *
+from tkinter import *
 import SearchEngine
 from SearchDialogBase import SearchDialogBase