save project

diy1.py

@@ -3,7 +3,7 @@ pen = turtle.Pen()
 colour=["red","orange","yellow","green"]
 pen.speed(100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000)
 screen=turtle.Screen()
-screen.bgcolor(black)
+screen.bgcolor("black")
 for i in range(1,300):
     pen.color(colour[i%4])
     pen.forward(i)