save project

diy.py

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