Whitespace normalization, via reindent.py.
diff --git a/Demo/tkinter/matt/slider-demo-1.py b/Demo/tkinter/matt/slider-demo-1.py
index 40395df..db6114b 100644
--- a/Demo/tkinter/matt/slider-demo-1.py
+++ b/Demo/tkinter/matt/slider-demo-1.py
@@ -5,32 +5,32 @@
 
 class Test(Frame):
     def print_value(self, val):
-	print "slider now at", val
+        print "slider now at", val
 
-    def reset(self): 
-	self.slider.set(0)
+    def reset(self):
+        self.slider.set(0)
 
     def createWidgets(self):
-	self.slider = Scale(self, from_=0, to=100, 
-			    orient=HORIZONTAL, 
-			    length="3i", 
-			    label="happy slider", 
-			    command=self.print_value)
+        self.slider = Scale(self, from_=0, to=100,
+                            orient=HORIZONTAL,
+                            length="3i",
+                            label="happy slider",
+                            command=self.print_value)
 
-	self.reset = Button(self, text='reset slider', 
-			    command=self.reset)
+        self.reset = Button(self, text='reset slider',
+                            command=self.reset)
 
-	self.QUIT = Button(self, text='QUIT', foreground='red', 
-			   command=self.quit)
+        self.QUIT = Button(self, text='QUIT', foreground='red',
+                           command=self.quit)
 
-	self.slider.pack(side=LEFT)
-	self.reset.pack(side=LEFT)
-	self.QUIT.pack(side=LEFT, fill=BOTH)
+        self.slider.pack(side=LEFT)
+        self.reset.pack(side=LEFT)
+        self.QUIT.pack(side=LEFT, fill=BOTH)
 
     def __init__(self, master=None):
-	Frame.__init__(self, master)
-	Pack.config(self)
-	self.createWidgets()
+        Frame.__init__(self, master)
+        Pack.config(self)
+        self.createWidgets()
 
 test = Test()
 test.mainloop()