save project

diy1.py

 import turtle
-
+screen=turtle.Screen()
+screen.bgcolor("black")
 pen=turtle.Pen()
 pen.speed(0)
 #d=1 
-for i in range(1,101):
+colors=["red","blue","yellow","green"]
+for i in range(1,900):
+    pen.pencolor(colors[i%4])
     pen.fd(i)
     pen.right(91)
  #  d+=1