text: import turtle
  #from turtle import *
  
  myTurtle = turtle.Turtle()
  
  def square(sue):
      sue.forward(100)
      sue.right(90)
      sue.forward(100)
      sue.right(90)
      sue.forward(100)
      sue.right(90)
      sue.forward(100)
      sue.right(90)
  
  def polygon(mine, sides, angle,distance):
      if sides==0:
          return
      else:
          mine.forward(distance)
          mine.right(angle)
          polygon(mine,sides-1,angle,distance)
  
  myTurtle = turtle.Turtle()
  #square(myTurtle)
  polygon(myTurtle,300,360./300,1)  # We just invented integral calculus!
  turtle.done()