#! /usr/bin/python2.7
""" 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 turtle import *
def yin(radius, color1, color2):
width(3)
color("black")
fill(True)
circle(radius/2., 180)
circle(radius, 180)
left(180)
circle(-radius/2., 180)
color(color1)
fill(True)
color(color2)
left(90)
up()
forward(radius*0.375)
right(90)
down()
circle(radius*0.125)
left(90)
fill(False)
up()
backward(radius*0.375)
down()
left(90)
def main():
reset()
yin(200, "white", "black")
yin(200, "black", "white")
ht()
return "Done!"
if __name__ == '__main__':
main()
mainloop()
