auto save

diy1.py

+import turtle
+pen=turtle.Pen()
+color=["red","yellow","green","black"]
+sceen=turtle.Screen()
+sceen.bgcolor("blue")
+for  i in range(1,3000,1):
+    pen.pencolor(color[i%4])
+    pen.forward(i)
+    pen.right(91)
+pen.hideturtle()
+turtle.done()
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