save project

diy1.py

@@ -5,7 +5,7 @@ pen=turtle.Pen()
 screen=turtle.Screen()
 pen.speed('fast')
 pen.hideturtle()
-screen.bgcolor('black')
+pen.bgcolor('black')
 
 i=0
 while i<135:
@@ -14,7 +14,7 @@ while i<135:
     pen.goto(0,0)
     pen.forward(200)
     pen.pendown()
-    screen.circle(100)
+    pen.circle(100)
     pen.left(2)
     i+=1