save project

diy1.py

+import turtle
+pen = turtle.Pen()
+screen=turtle.Screen()
+screen.bgcolor("green")
+colors=["blue","red","orange","yellow"]
+pen.speed(100)
+for i in range(1,500):
+    pen.pencolor(colors[i%4])    
+    pen.forward(i)
+    pen.right(91)    
+pen.hideturtle()
+turtle.done