from turtle import *

def drawTriangle(points, color, myTurtle):

myTurtle.fillcolor(color)

myTurtle.up()

myTurtle.goto(points[0])

myTurtle.down()

myTurtle.begin_fill()

myTurtle.goto(points[1])

myTurtle.goto(points[2])

myTurtle.goto(points[0])

myTurtle.end_fill()

def getMid(p1, p2):

return (p1[0] + p2[0]) / 2, (p1[1] + p2[1]) / 2

def sierpinski(points, degree, myTurtle):

colormap = ['blue', 'red', 'green', 'white', 'yellow', 'violet', 'orange']

drawTriangle(points, colormap[degree], myTurtle)

if degree > 0:

sierpinski([points[0], getMid(points[0], points[1]), getMid(points[0], points[2])], degree-1, myTurtle)

sierpinski([points[1], getMid(points[0], points[1]), getMid(points[1], points[2])], degree-1, myTurtle)

sierpinski([points[2], getMid(points[2], points[1]), getMid(points[1], points[2])], degree-1, myTurtle)

myTurtle = Turtle()

myWin = myTurtle.getscreen()

myPoints = [(-500, -250), (0, 500), (500, -250)]

sierpinski(myPoints, 5, myTurtle)

myWin.exitonclick()