Fixed missing parentheses on tree_data method call.

davidthewatson · davidthewatson · commit 67e9cc0c7f42 · 2012-04-09T13:58:58.000-03:00
diff --git a/binary_tree_tutorial.txt b/binary_tree_tutorial.txt
@@ -417,7 +417,7 @@ class Node:
 
 For example, we want to access the tree nodes using a for loop:
 [code lang="python"]
-for data in root.tree_data:
+for data in root.tree_data():
   print data
 [/code]
 
