Check if mesh is a cube that would be accepted as a unreal collision volume

check_ubx.py

import lx
import lxu
import modo

from math import isclose

mesh, = modo.Scene().selectedByType('mesh')
result = set()
with mesh.geometry as geo:
	normals = set()
	for polygon in geo.polygons:
		normals.add(polygon.normal)
		
	for a in normals:
		for b in normals:
			if a == b: continue
			zero = isclose(abs(lxu.vector.dot(a,b)), 0.0, abs_tol=0.000001)
			one = isclose(abs(lxu.vector.dot(a,b)), 1.0, abs_tol=0.000001)
			result.add(zero or one)
			
if False in result:
	print("Not nice box")
else:
	print("Beautiful, beautiful box")