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# skbio.tree.TreeNode.non_tips

`TreeNode.``non_tips`(include_self=False)

  Iterates over nontips descended from self

  State: Experimental as of 0.4.0.

  include_self, if True (default is False), will return the current node as part of non_tips if it is a non_tip. Node order is consistent between calls and is ordered by a postorder traversal of the tree.

  Parameters: | include_self (bool) – include the initial node if True
  Yields: | TreeNode – Traversed node.

  See also

  `traverse()`, `postorder()`, `preorder()`, `pre_and_postorder()`, `levelorder()`, `tips()`

  Examples

      >>> from skbio import TreeNode
      >>> tree = TreeNode.read(["((a,b)c,(d,e)f);"])
      >>> for node in tree.non_tips():
      ...     print(node.name)
      c
      f