Update data_structures/binary_tree/binary_tree_traversals.py

rajansh87 · cclauss · web-flow · commit fe91a5a258d0 · 2020-10-15T13:46:20.000+05:30
Co-authored-by: Christian Clauss &lt;cclauss@me.com&gt;
diff --git a/data_structures/binary_tree/binary_tree_traversals.py b/data_structures/binary_tree/binary_tree_traversals.py
@@ -24,7 +24,8 @@ def preorder(root):
     PreOrder traversal: visit root node
     then its left subtree followed
     by right subtree.
-    preorder(make_tree())
+
+    >>> preorder(make_tree())
     1 2 4 5 3
     """
     if root:
