Kod rysujący spiralę w wybranych kolorach.
import turtle
tt = turtle.Turtle()
tt.speed(0)
tt.pensize(5)
colors = ["red", "orange", "yellow",
"green", "blue", "indigo", "violet"]
for i in range(300):
tt.pencolor(colors[i%len(colors)])
tt.left(90)
tt.forward(4+2*i)