save project

diy1.py

 import turtle
 
+screen=turtle.Screen() 
+screen.bgcolor('black')
 pen=turtle.Pen()
-pen.color('blue')
-
+color=['blue','red','yellow','green']
 for i in range(310):
+    pen.pencolor(color[i%4])
     pen.forward(i)
     pen.right(91)
-    pen.speed(111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111)
-    
-
-
+    pen.speed(11111111111111111111111111111111111111111111111111111)
 
 pen.hideturtle()
 turtle.done()