save project

diy4.py

 import turtle
+
 pen=turtle.Pen()
+screen=turtle.Screen()
+screen.bgcolor("black")
+cloros=["red","blue","green","pink"]
 for i in range(1,300):
+    pen.color(cloros[i%4])
     pen.forward(i)
     pen.right(91)
 pen.hideturtle()