Tkinter rename reversal: remove tkinter package, adapt imports and docs.
diff --git a/Lib/idlelib/ObjectBrowser.py b/Lib/idlelib/ObjectBrowser.py
index c328cdc..8ff0041 100644
--- a/Lib/idlelib/ObjectBrowser.py
+++ b/Lib/idlelib/ObjectBrowser.py
@@ -136,7 +136,7 @@
 
 def _test():
     import sys
-    from tkinter import Tk
+    from Tkinter import Tk
     root = Tk()
     root.configure(bd=0, bg="yellow")
     root.focus_set()