save project

1.py

 import turtle
-screen=bgcolor("black")
+screen.bgcolor("black")
 
 list=["red","orange","yellow","green"]
 pen=turtle.Pen()
@@ -7,6 +7,5 @@ for i in range(1,300):
     pen.pencolor(list[i%4])
     pen.forward(i)
     pen.right(91)
-    i+=1
 pen.hideturtle()
 turtle.done    
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