save project

fence.py

 import turtle
 import turtle
-
+screen=turtle.Screen()
 Pen=turtle.Pen()
 Pen=turtle.Pen()
+colors=["red","orange","yellow","green"]
+screen.bgcolor("black")
 for i in range(1,300):
 for i in range(1,300):
+    Pen.pencolor(colors[i%4])
     Pen.forward(i)
     Pen.forward(i)
     Pen.right(91)
     Pen.right(91)
 turtle.done()
 turtle.done()
\ No newline at end of file