save project

c.py

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