star.py

import turtle
pen=turtle.Pen()
screen=turtle.Screen()
screen.bgcolor("black")
colors=["green","red","orange","yellow"]
pen.speed(0)
for i in range(1000000000):
    pen.pencolor(colors[i%4])
    pen.forward(i)
    pen.right(91)
    
pen.hideturtle()
turtle.done()