save project

diy1.py

 import turtle
 import turtle
 turtle.speed(0)
 turtle.speed(0)
-for x in range(1,1000):
+sreen=turtle.Screen()
+sreen.bgcolor("black")
+color=["red","orange","yellow","green"]
+for x in range(1,3000):
     turtle.forward(x)
     turtle.forward(x)
     turtle.left(91)
     turtle.left(91)
+    turtle.pencolor(color[x%4])
 turtle.done()
 turtle.done()
\ No newline at end of file