def _indices(self):
path = self.parent<EOL>layer = path.parent<EOL>for path_index in range(len(layer.paths)):<EOL><INDENT>if path == layer.paths[path_index]:<EOL><INDENT>for node_index in range(len(path.nodes)):<EOL><INDENT>if self == path.nodes[node_index]:<EOL><INDENT>return Point(path_index, node_index)<EOL><DEDENT><DEDENT><DEDENT><DEDENT>return None<EOL>
Find the path_index and node_index that identify the given node.