save project

diy1.py

 import turtle
 import turtle
 pen=turtle.Pen()
 pen=turtle.Pen()
+color=["black","green","black","brown"]
 for i in range(1,450,1):
 for i in range(1,450,1):
+   pen.pencolor(color[i%4])
    pen.forward(i)
    pen.forward(i)
    pen.left(91)
    pen.left(91)
 pen.hideturtle()
 pen.hideturtle()