auto save

diy1.py

+import turtle
+pen = turtle.Pen()
+screen = turtle.Screen()
+screen.bgcolor("black")
+colors=["white","blue","red","green"]
+pen.speed(100000000)
+for i in range(100,300):
+    pen.pencolor(colors[i%4])
+    pen.forward(i)
+    pen.right(121)
+pen.hideturtle()
+turtle.done()