def tmux_id_4_backup(tmux_id):
    if not tmux_id:
        return datetime.datetime.fromtimestamp(time.time()).strftime('%Y%m%d_%H%M%S')
    if path.isdir(path.join(config.BACKUP_PATH,tmux_id)):
        LOG.error('(backup -b):the given backup name exists already, aborted.')
        sys.exit(1)
    return tmux_id
a.__mod__(b) <==> a%b
dataset/ETHPy150Open sk1418/retmux/tmuxbk/controller.py/tmux_id_4_backup--crossover with--dataset/ETHPy150Open CountZer0/PipelineConstructionSet/python/maya/site-packages/pymel-1.0.3/pymel/util/arrays.py/Array.__mod__