from graphics import GraphicsWindow

win = GraphicsWindow(100, 100)
canvas = win.canvas()
canvas.setColor("Black")
canvas.drawRectangle(0, 0, 100, 100)
canvas.drawOval(0, 0, 100, 100)
canvas.setColor("White")
canvas.drawOval(10, 10, 80, 80)
canvas.setColor("Black")
canvas.drawOval(20, 20, 60, 60)
canvas.setColor("White")
canvas.drawOval(30, 30, 40, 40)
canvas.setColor("Red")
canvas.drawOval(40, 40, 20, 20)
win.wait()
