def dtype(self, byte_order='='):
        '''
        Return the numpy dtype of the in-memory representation of the
        data.  (If there are no list properties, and the PLY format is
        binary, then this also accurately describes the on-disk
        representation of the element.)
        '''
        return [(prop.name, prop.dtype(byte_order))
                for prop in self.properties]

        Return the numpy dtype of the in-memory representation of the
        data.  (If there are no list properties, and the PLY format is
        binary, then this also accurately describes the on-disk
        representation of the element.)
        
visualizer/plyfile.py