faces = submesh.GetElementsByType(SMESH.FACE)
if len(faces) > 1:
- print len(faces), len(faces)/2
+ print(len(faces), len(faces)/2)
group1 = mesh.CreateEmptyGroup(SMESH.FACE,"Group of faces")
group2 = mesh.CreateEmptyGroup(SMESH.FACE,"Another group of faces")
group1.Add(faces[:int(len(faces)/2)])