(self)
return list(self.node_neighbors.keys())
Return node list.

        @rtype:  list
        @return: Node list.
Return node list.
Return node list .
def nodes(self):
        """
        Return node list.

        @rtype:  list
        @return: Node list.
        """
        return list(self.node_neighbors.keys())
def nodes ( self ) : return list ( self . node_neighbors . keys ( ) )