Patch #3064: Port new turtle module and demos to 3.0.
diff --git a/Demo/turtle/tdemo_yinyang.py b/Demo/turtle/tdemo_yinyang.py
new file mode 100644
index 0000000..a47dd71
--- /dev/null
+++ b/Demo/turtle/tdemo_yinyang.py
@@ -0,0 +1,49 @@
+#!/usr/bin/python
+""" turtle-example-suite:
+
+ tdemo_yinyang.py
+
+Another drawing suitable as a beginner's
+programming example.
+
+The small circles are drawn by the circle
+command.
+
+"""
+
+from tkinter.turtle import *
+
+def yin(radius, color1, color2):
+ width(3)
+ color("black", color1)
+ begin_fill()
+ circle(radius/2., 180)
+ circle(radius, 180)
+ left(180)
+ circle(-radius/2., 180)
+ end_fill()
+ left(90)
+ up()
+ forward(radius*0.35)
+ right(90)
+ down()
+ color(color1, color2)
+ begin_fill()
+ circle(radius*0.15)
+ end_fill()
+ left(90)
+ up()
+ backward(radius*0.35)
+ down()
+ left(90)
+
+def main():
+ reset()
+ yin(200, "black", "white")
+ yin(200, "white", "black")
+ ht()
+ return "Done!"
+
+if __name__ == '__main__':
+ main()
+ mainloop()