auto save

my_tree.py

 import turtle
+import random
 
 def tree(n):
     if n>=50:
         pen.forward(n)
-        pen.right(30)
+        pen.right(angle)
         tree(n-10)
-        pen.left(60)
+        pen.left(2*angle)
         tree(n-10)
-        pen.right(30)
+        pen.right(angle)
         pen.up()
         pen.backward(n)
         pen.down()