Whitespace normalization, via reindent.py.
diff --git a/Demo/tkinter/guido/paint.py b/Demo/tkinter/guido/paint.py
index 743d500..d46e20b 100644
--- a/Demo/tkinter/guido/paint.py
+++ b/Demo/tkinter/guido/paint.py
@@ -12,12 +12,12 @@
 
   All this does is put up a canvas and draw a smooth black line
 whenever you have the mouse button down, but hopefully it will
-be enough to start with.. It would be easy enough to add some 
+be enough to start with.. It would be easy enough to add some
 options like other shapes or colors...
 
-						yours,
-						dave mitchell
-						davem@magnet.com
+                                                yours,
+                                                dave mitchell
+                                                davem@magnet.com
 """
 
 from Tkinter import *
@@ -28,33 +28,33 @@
 xold, yold = None, None
 
 def main():
-  root = Tk()
-  drawing_area = Canvas(root)
-  drawing_area.pack()
-  drawing_area.bind("<Motion>", motion)
-  drawing_area.bind("<ButtonPress-1>", b1down)
-  drawing_area.bind("<ButtonRelease-1>", b1up)
-  root.mainloop()
+    root = Tk()
+    drawing_area = Canvas(root)
+    drawing_area.pack()
+    drawing_area.bind("<Motion>", motion)
+    drawing_area.bind("<ButtonPress-1>", b1down)
+    drawing_area.bind("<ButtonRelease-1>", b1up)
+    root.mainloop()
 
 def b1down(event):
-  global b1
-  b1 = "down"		# you only want to draw when the button is down
-			# because "Motion" events happen -all the time-
+    global b1
+    b1 = "down"           # you only want to draw when the button is down
+                          # because "Motion" events happen -all the time-
 
 def b1up(event):
-  global b1, xold, yold
-  b1 = "up"
-  xold = None		# reset the line when you let go of the button
-  yold = None
+    global b1, xold, yold
+    b1 = "up"
+    xold = None           # reset the line when you let go of the button
+    yold = None
 
 def motion(event):
-  if b1 == "down":
-    global xold, yold
-    if xold != None and yold != None:
-      event.widget.create_line(xold,yold,event.x,event.y,smooth=TRUE)
-			# here's where you draw it. smooth. neat.
-    xold = event.x
-    yold = event.y
+    if b1 == "down":
+        global xold, yold
+        if xold != None and yold != None:
+            event.widget.create_line(xold,yold,event.x,event.y,smooth=TRUE)
+                          # here's where you draw it. smooth. neat.
+        xold = event.x
+        yold = event.y
 
 if __name__ == "__main__":
-  main()
+    main()