(self)
return self.order()
Return the order of self when requested by len().

        @rtype:  number
        @return: Size of the graph.
Return the order of self when requested by len().
Return the order of self when requested by len () .
def __len__(self):
        """
        Return the order of self when requested by len().

        @rtype:  number
        @return: Size of the graph.
        """
        return self.order()
def __len__ ( self ) : return self . order ( )