blah.py

                        for f, f_index in face_index_pairs[:-1]
                            f_v = [(vi, me_verts[v_idx], l_idx)
                                    for vi, (v_idx, l_idx) in enumerate(zip(f.vertices, f.loop_indices))]
                            fw('%d, ' % (totverts + f_v[0][1].index))
      
                        f, f_index = face_index_pairs[-1]
                            f_v = [(vi, me_verts[v_idx], l_idx)
                                    for vi, (v_idx, l_idx) in enumerate(zip(f.vertices, f.loop_indices))]
                            fw('%d, ' % (totverts + f_v[0][1].index))
                        fw('%d' % something)