save project

1.py

 import turtle
 import turtle
 pen=turtle.Pen()
 pen=turtle.Pen()
-
+screen=turtle.Screen()
+screen.bgcolor("black")
+colors=["red","orange","green","yellow"]
 for i in range(1,301):
 for i in range(1,301):
-    pen.forward(distance)
+    pen.pencolor(colors[i%4])
+    pen.forward(i)
     
     
     pen.right(91)
     pen.right(91)
 pen.hideturtle()
 pen.hideturtle()