save project

diy1.py

@@ -4,7 +4,11 @@
 """
 import turtle
 pen=turtle.Pen()
+screen=turtle.Screen()
+pencolor=("blue","red","yellow","orange")
+screen.bgcolor("black")
 for i in range(1,300,3):
+    pen.color(pencolor[i%4])
     pen.forward(i)
     pen.right(91)
     i+=1