need to sort meshes relative to each other by various parameters.

mesh_density_calc.py

import pymel.core as pm
import maya.mel as mel

def mesh_density_calc(mesh, operation = 'density'):
    #TODO:      add line ot save existing selection and reselect at the end
    pm.select(mesh)
    
    if operation == 'volume':
        return mel.eval('computePolysetVolume ')
    elif operation == 'polycount':
        mesh_polycount = pm.polyEvaluate(f=1)#could also use this to get area and modulate specular against area/density
        return (mesh_polycount)
    elif operation == 'density':
        mesh_volume = mel.eval('computePolysetVolume ')
        mesh_polycount = pm.polyEvaluate(f=1)
        return (mesh_volume/mesh_polycount)
    else:
        warning('invalid operation parameter')


#print("=================")
#print('Mesh has a volume of %s, with a polycount of %s, for a density value of %s') %(mesh_volume, mesh_polycount, mesh_density)