skbio.tree.TreeNode.preorder¶

TreeNode.preorder(include_self=True)[source]¶

Performs preorder iteration over tree

State: Experimental as of 0.4.0.

Parameters:	include_self : bool include the initial node if True
Yields:	TreeNode Traversed node.

See also

traverse, postorder, pre_and_postorder, levelorder, tips, non_tips

Examples

>>> from skbio import TreeNode
>>> tree = TreeNode.read(["((a,b)c);"])
>>> for node in tree.preorder():
...     print(node.name)
None
c
a
b