def item(p_queue, queue_id, host=None):
    if host is not None:
        return os.path.join(_path(host, _c.FSQ_QUEUE, root=hosts(p_queue)),
                            valid_name(queue_id))
    '''Construct a path to a queued item'''
    return os.path.join(_path(p_queue, _c.FSQ_QUEUE), valid_name(queue_id))
Construct a path to a queued item