save project

diy1.py

 import turtle
 import turtle
 pen=turtle.Pen()
 pen=turtle.Pen()
-i=1
-for i in range(300):
+
+for i in range(1,300):
     pen.forward(i)
     pen.forward(i)
     i+=1
     i+=1
     pen.right(91)
     pen.right(91)