Get all leaf nodes from the tree of which this is the head.

This returns a generator of all leaf nodes belonging to this tree. A leaf node is a node that has no ancestors.

Parameters:selector (optional, str ("forest", "tree", or "prog")) – The tree selector from which leaf nodes will be found. If none given, this will be set to “forest” if the calling node is a root node and “tree” otherwise.
Returns:leaf_nodesTreeNode objects.
Return type:a generator of


>>> import ytree
>>> a = ytree.load("tiny_ctrees/locations.dat")
>>> my_tree = a[0]
>>> for leaf in my_tree.get_leaf_nodes():
...     print (leaf["mass"])