auto save

diy1.py

 import turtle
 pen=turtle.Pen()
-for i in range(1,400):
+screen=turtle.Screen()
+screen.bgcolor("black")
+colors=["red","orange","yellow","green","blue","purple"]
+for i in range(1,900):
+    pen.pencolor(colors[i%6])
     pen.forward(i)
     pen.right(61)
 pen.hideturtle()