skbio.tree.TreeNode.is_root

TreeNode.is_root()

Check if the current node is the root of a tree.

Returns:

bool

Whether the node is the root.

See also

is_tip

has_children

Notes

A root is defined as a node that has no parent. A tree has exactly one root.

Examples

>>> from skbio import TreeNode
>>> tree = TreeNode.read(["((a,b)c);"])
>>> print(tree.is_root())
True
>>> print(tree.find('a').is_root())
False