Question

我在main.py中有这行代码：

if __name__ == "__main__":
    tf.app.run()

但它抛出了异常：

ValueError: Iteration of zero-sized operands is not enabled

为什么会这样？

这是整个代码：

import tensorflow as tf
import config
import os
from urllib.request import urlretrieve
from zipfile import ZipFile
from dataset.dataset import Dataset
from network.eval import Learning

FLAGS = tf.app.flags.FLAGS
data_dir = config.data_dir
tmp_zip_adr = config.tmp_zip_adr
dataset_urls = config.dataset_urls


def download_dataset_if_needed():
    def download_and_unzip(zipurls):
        for url in zipurls:
            print("Downloading {}".format(url))
            fpath, _ = urlretrieve(url, tmp_zip_adr)
            zf = ZipFile(fpath)
            zf.extractall(data_dir)
            zf.close()
            os.remove(fpath)
        print("Dataset downloaded into 'dataset/data' folder")

    if not os.path.exists(data_dir) or FLAGS.download:
        os.makedirs(data_dir)
        print("Downloading dataset")
        download_and_unzip(dataset_urls)


def main(argv=None):
    download_dataset_if_needed()
    if FLAGS.update or not os.path.exists(data_dir + 'segmented_set1'):
        print("Starting processing binary dataset")
        Dataset().create_dataset(data_dir + "segmented_set?/*.avi")
    Learning()


if __name__ == '__main__':
    tf.app.run()

这就是整个错误：

Traceback (most recent call last):   File
"C:\Users\asus\Desktop\cnn-rnn-master\cnn-rnn-master\main.py", line
41, in <module>
 tf.app.run()   File "C:\Users\asus\AppData\Local\Programs\Python\Python35\lib\site-packages\tensorflow\python\platform\app.py",
line 48, in run
 _sys.exit(main(_sys.argv[:1] + flags_passthrough))   File "C:\Users\asus\Desktop\cnn-rnn-master\cnn-rnn-master\main.py", line
37, in main
 Learning()   File "C:\Users\asus\Desktop\cnn-rnn-master\cnn-rnn-master\network\eval.py",
line 12, in __init__
 self.train_reader = Reader.Reader("dataset/data/segmented_set1/*.tfr")   File
"C:\Users\asus\Desktop\cnn-rnn-master\cnn-rnn-master\dataset\Reader.py",
line 13, in __init__
 self.init_dataset()   File "C:\Users\asus\Desktop\cnn-rnn-master\cnn-rnn-master\dataset\Reader.py",
line 53, in init_dataset
 self.iterator = np.nditer(self.files) ValueError: Iteration of zero-sized operands is not enabled

我使用https://github.com/tensorflow/tensorflow/blob/9dc6c17797c065796603d9259b2aa57b3c07ff71/tensorflow/python/platform/app.py#L22中的代码逐行浏览了tf.app.run（），run(main=None, argv=None)

中的这一行

_sys.exit(main(_sys.argv[:1] + flags_passthrough))

发出错误

Traceback (most recent call last):
  File "<pyshell#48>", line 1, in <module>
    _sys.exit(main(_sys.argv[:1] + flags_passthrough))
TypeError: 'NoneType' object is not callable

tf.app.run（）错误

0 个答案: