new_contents: from graphics import *
  
  def main():
      win = GraphWin("Moving Circle")
  
      circle = Circle(Point(75, 75), 25)
      circle.draw(win)
  
      win.getMouse() # Pause between each frame
  
      circle.move(0, 50)
  
      win.getMouse() # Pause between each frame
  
      circle.move(50, 0)
  
      win.getMouse() # Pause between each frame
  
      circle.move(0, -50)
  
      win.getMouse() # Pause between each frame
  
      circle.move(-50, 0)
  
  main()
  
  win.getMouse()
subject: Add example animation.