Use np.prod instead of reduce (fix for Py 3.2)
Use np.prod instead of reduce (fix for Py 3.2)

dit/dit,chebee7i/dit,Autoplectic/dit,Autoplectic/dit,chebee7i/dit,chebee7i/dit,Autoplectic/dit,dit/dit,Autoplectic/dit,dit/dit,chebee7i/dit,Autoplectic/dit,dit/dit,dit/dit