Brincando com Turtle do Python...

playTurtle.py

__author__ = 'kaue'
import turtle,time
colors = ['red', 'purple', 'blue', 'green', 'yellow', 'orange', 'pink']
t1=turtle.Pen()
turtle.bgcolor('black')
t1.speed(0)
for x in range(1000):
    t1.pencolor(colors[x%7])
    if x%2==0:
        t1.forward(x)
    else:
        t1.backward((x-1))
    t1.left(52)


time.sleep(30)