dice a blender object by its vertices

diceObject.py

def diceObj(obj):
    bm = getBMesh(obj)
    # add one for both ends of a row because we want to start from the center
    # hold all the planes to bisect with as (location), (normal)
    arrPlanes = []
    # get each X and Y from
    # get verts by faces so we have a normal
    for face in bm.faces:
        for v in face.verts:
            arrPlanes.append(
                [v.co, face.normal + mathutils.Vector((1, 0, 0))])
            arrPlanes.append(
                [v.co, face.normal + mathutils.Vector((0, 1, 0))])
            arrPlanes.append(
                [v.co, face.normal + mathutils.Vector((0, 0, 1))])
    for plane in arrPlanes:
        geo = list(bm.verts) + list(bm.edges) + list(bm.faces)
        bmesh.ops.bisect_plane(
            bm,
            geom=geo,
            dist=0,
            plane_co=plane[0],
            plane_no=plane[1],
            clear_inner=False,
            clear_outer=False)
    bmesh.ops.remove_doubles(bm, verts=bm.verts, dist=0.0001)
    obj.data.update()
    setBMesh(obj, bm)