例外：cifar10 数据集的 URL 获取失败

扎眼的阳光 2年前 tensorflow 305

原文标题 ：Exception: URL fetch failure for cifar10 dataset

我写了一个小的 python 2.8 代码集，我试图读取 cifar10 图像，但一直得到一个异常错误。这是我的代码：

import tensorflow as tf
from tensorflow import keras
from tensorflow.keras import layers
from tensorflow.keras import datasets
from tensorflow.keras.datasets import cifar10
(x_train, y_train), (x_test, y_test) = keras.datasets.cifar10.load_data()

"""
my error messages:
Traceback (most recent call last):
  File "C:\Users\bmimi\anaconda3\envs\tf2.8\lib\site-packages\keras\utils\data_utils.py", line 277, in get_file
    
urlretrieve(origin, fpath, dl_progress)
  File "C:\Users\bmimi\anaconda3\envs\tf2.8\lib\site-packages\keras\utils\data_utils.py", line 82, in urlretrieve
    
response = urlopen(url, data)
  File "C:\Users\bmimi\anaconda3\envs\tf2.8\lib\urllib\request.py", line 214, in urlopen
    return opener.open(url, data, timeout)
  File "C:\Users\bmimi\anaconda3\envs\tf2.8\lib\urllib\request.py", line 517, in open
    response = self._open(req, data)
  File "C:\Users\bmimi\anaconda3\envs\tf2.8\lib\urllib\request.py", line 539, in _open
    return self._call_chain(self.handle_open, 'unknown',
  File "C:\Users\bmimi\anaconda3\envs\tf2.8\lib\urllib\request.py", line 494, in _call_chain
    result = func(*args)
  File "C:\Users\bmimi\anaconda3\envs\tf2.8\lib\urllib\request.py", line 1413, in unknown_open
    raise URLError('unknown url type: %s' % type)
urllib.error.URLError: <urlopen error unknown url type: https>

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\bmimi\PycharmProjects\my_first_project\test.py", line 27, in <module>
    (x_train, y_train), (x_test, y_test) = keras.datasets.cifar10.load_data()
  File "C:\Users\bmimi\anaconda3\envs\tf2.8\lib\site-packages\keras\datasets\cifar10.py", line 79, in load_data
    
path = get_file(
  File "C:\Users\bmimi\anaconda3\envs\tf2.8\lib\site-packages\keras\utils\data_utils.py", line 281, in get_file
    
raise Exception(error_msg.format(origin, e.errno, e.reason))
Exception: URL fetch failure on https://www.cs.toronto.edu/~kriz/cifar-10-python.tar.gz: None -- unknown url type: https
Downloading data from https://www.cs.toronto.edu/~kriz/cifar-10-python.tar.gz

Process finished with exit code 1
"""

我正在使用 Pycharm 社区编辑器，python 版本。2.8 和 Tensorflow 版本。2.8。

我是否滥用了 tf 代码，我们还有其他问题吗？谢谢您的帮助，Bob

原文链接：https://stackoverflow.com//questions/71994506/exception-url-fetch-failure-for-cifar10-dataset

我来回复

ellhe-blaster 评论

我认为您的问题是由您正在运行的Python版本的支持引起的，因为如果您在较新的版本中执行此操作(3.7)它不会返回任何错误

import tensorflow as tf # ver 2.x
print(tf.version)
from tensorflow.keras.datasets.cifar10 import load_data # dataset

(x_train, y_train), (x_val, y_val) = load_data()

…

<module 'tensorflow._api.v2.version' from '/usr/local/lib/python3.7/dist-packages/tensorflow/_api/v2/version/__init__.py'>
Downloading data from https://www.cs.toronto.edu/~kriz/cifar-10-python.tar.gz
170500096/170498071 [==============================] - 11s 0us/step
170508288/170498071 [==============================] - 11s 0us/step

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例外：cifar10 数据集的 URL 获取失败

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