Whitespace normalization, via reindent.py.
diff --git a/Demo/tkinter/matt/killing-window-w-wm.py b/Demo/tkinter/matt/killing-window-w-wm.py
index 805a6bc..6a0e2fe 100644
--- a/Demo/tkinter/matt/killing-window-w-wm.py
+++ b/Demo/tkinter/matt/killing-window-w-wm.py
@@ -1,8 +1,8 @@
 from Tkinter import *
 
-# This file shows how to trap the killing of a window 
+# This file shows how to trap the killing of a window
 # when the user uses window manager menus (typ. upper left hand corner
-# menu in the decoration border). 
+# menu in the decoration border).
 
 
 ### ******* this isn't really called -- read the comments
@@ -11,31 +11,31 @@
 
 class Test(Frame):
     def deathHandler(self, event):
-	print self, "is now getting nuked. performing some save here...."
+        print self, "is now getting nuked. performing some save here...."
 
     def createWidgets(self):
-	# a hello button
-	self.hi_there = Button(self, text='Hello')
-	self.hi_there.pack(side=LEFT)
+        # a hello button
+        self.hi_there = Button(self, text='Hello')
+        self.hi_there.pack(side=LEFT)
 
     def __init__(self, master=None):
-	Frame.__init__(self, master)
-	Pack.config(self)
-	self.createWidgets()
+        Frame.__init__(self, master)
+        Pack.config(self)
+        self.createWidgets()
 
-	###
-	###  PREVENT WM kills from happening
-	###
+        ###
+        ###  PREVENT WM kills from happening
+        ###
 
-	# the docs would have you do this: 
+        # the docs would have you do this:
 
-#	self.master.protocol("WM_DELETE_WINDOW", my_delete_callback)
+#       self.master.protocol("WM_DELETE_WINDOW", my_delete_callback)
 
-	# unfortunately, some window managers will not send this request to a window.
-	# the "protocol" function seems incapable of trapping these "aggressive" window kills.
-	# this line of code catches everything, tho. The window is deleted, but you have a chance
-	# of cleaning up first.
-	self.bind_all("<Destroy>", self.deathHandler)
+        # unfortunately, some window managers will not send this request to a window.
+        # the "protocol" function seems incapable of trapping these "aggressive" window kills.
+        # this line of code catches everything, tho. The window is deleted, but you have a chance
+        # of cleaning up first.
+        self.bind_all("<Destroy>", self.deathHandler)
 
 
 test = Test()