skbio.tree.TreeNode.preorder

TreeNode.preorder(include_self=True)

Perform preorder iteration over tree.

Parameters:

include_selfbool

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