Error if there are a lot of boxes, i guess

[anofryev]

HI. It looks llike when there are a lot of boxes in one picture, it cause an error " can't multiply sequence by non-int of type 'float'"
because of that code in data_generators.calc_rpn:

if len(pos_locs[0]) > num_regions/2:
   val_locs = random.sample(range(len(pos_locs[0])), len(pos_locs[0]) - num_regions/2)
   y_is_box_valid[0, pos_locs[0][val_locs], pos_locs[1][val_locs], pos_locs[2][val_locs]] = 0
   num_pos = num_regions/2

how can i fix that?