Tkinter, step 2: adapt imports.
diff --git a/Lib/idlelib/EditorWindow.py b/Lib/idlelib/EditorWindow.py
index e049b66..a7970ba 100644
--- a/Lib/idlelib/EditorWindow.py
+++ b/Lib/idlelib/EditorWindow.py
@@ -4,9 +4,9 @@
 import string
 import imp
 from itertools import count
-from Tkinter import *
-import tkSimpleDialog
-import tkMessageBox
+from tkinter import *
+import tkinter.simpledialog as tkSimpleDialog
+import tkinter.messagebox as tkMessageBox
 import traceback
 import webbrowser