- """Return a list of nodes representing the path from
- the tree's root to the node argument. If the node does
- not exist in the tree for some reason, the last element
- on the path will be None but the path will indicate the
- ancestor path of that node were it inserted.
+ """Get a node's parent path.
+
+ Args:
+ node: the node to check
+
+ Returns:
+ a list of nodes representing the path from
+ the tree's root to the node.
+
+ .. note::
+
+ If the node does not exist in the tree, the last element
+ on the path will be None but the path will indicate the
+ ancestor path of that node were it to be inserted.