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diff --git a/Demo/turtle/tdemo_paint.py b/Demo/turtle/tdemo_paint.py
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+++ b/Demo/turtle/tdemo_paint.py
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+#!/usr/bin/python
+"""       turtle-example-suite:
+
+            tdemo_paint.py
+
+A simple  eventdriven paint program
+
+- use left mouse button to move turtle
+- middle mouse button to change color
+- right mouse button do turn filling on/off
+ -------------------------------------------
+ Play around by clicking into the canvas
+ using all three mouse buttons.
+ -------------------------------------------
+          To exit press STOP button
+ -------------------------------------------
+"""
+from tkinter.turtle import *
+
+def switchupdown(x=0, y=0):
+    if pen()["pendown"]:
+        end_fill()
+        up()
+    else:
+        down()
+        begin_fill()
+
+def changecolor(x=0, y=0):
+    global colors
+    colors = colors[1:]+colors[:1]
+    color(colors[0])
+
+def main():
+    global colors
+    shape("circle")
+    resizemode("user")
+    shapesize(.5)
+    width(3)
+    colors=["red", "green", "blue", "yellow"]
+    color(colors[0])
+    switchupdown()
+    onscreenclick(goto,1)
+    onscreenclick(changecolor,2)
+    onscreenclick(switchupdown,3)
+    return "EVENTLOOP"
+
+if __name__ == "__main__":
+    msg = main()
+    print(msg)
+    mainloop()