save project

qqqqq.py

 import turtle
 import turtle
 pen=turtle.Pen()
 pen=turtle.Pen()
-for i in range(1,301):
+screen=turtle.Screen()
+screen.bgcolor("black")
+color=["red","green","blue","yellow"]
+for i in range(1,300,7):
+    pen.pencolor(color[i%4])
     pen.forward(i)
     pen.forward(i)
     pen.right(91)
     pen.right(91)
 pen.hideturtle()
 pen.hideturtle()