train.py 文件源码

def validate(opt, agent):
    old_datatype = agent.opt['datatype']
    agent.opt['datatype'] = 'valid'

    opt = deepcopy(opt)
    opt['datatype'] = 'valid'
    opt['terminate'] = True
    opt['batchsize'] = 1

    old_stdout = sys.stdout
    sys.stdout = open(os.devnull, 'w')
    valid_world = create_task(opt, agent)
    sys.stdout = old_stdout

    for _ in valid_world:
        valid_world.parley()

    stats = valid_world.report()
    agent.opt['datatype'] = old_datatype
    return stats