save project

rf.py

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