save project

diy1.py

-
+colors=["red","orange","yellow","green"]
 import turtle
+Screen = turtle.Screen()
+Screen.bgcolor("black")
 pen = turtle.Pen()
 for i in range(1,300):
+    pen.pencolor(colors[i%4])
     pen.forward(i)
     pen.right(91)
 pen.hideturtle()