zipfile.BadZipFile: File is not a zip file

[LYBAB2]

Describe the bug
When I was executing the notebook code in the example, I encountered a situation where the dataset could not be imported
To Reproduce
BadZipFile Traceback (most recent call last)
Cell In[26], line 1
----> 1 (x_raw, y_raw), (x_raw_test, y_raw_test), min_, max_ = load_mnist(raw=True)
3 # Random Selection:
4 n_train = np.shape(x_raw)[0]

File d:\anaconda3\lib\site-packages\art\utils.py:1149, in load_mnist(raw)
1137 """
1138 Loads MNIST dataset from config.ART_DATA_PATH or downloads it if necessary.
1139
1140 :param raw: True if no preprocessing should be applied to the data. Otherwise, data is normalized to 1.
1141 :return: (x_train, y_train), (x_test, y_test), min, max.
1142 """
1143 path = get_file(
1144 "mnist.npz",
1145 path=config.ART_DATA_PATH,
1146 url="https://s3.amazonaws.com/img-datasets/mnist.npz",
1147 )
-> 1149 dict_mnist = np.load(path)
1150 x_train = dict_mnist["x_train"]
1151 y_train = dict_mnist["y_train"]

File d:\anaconda3\lib\site-packages\numpy\lib\npyio.py:420, in load(file, mmap_mode, allow_pickle, fix_imports, encoding, max_header_size)
416 if magic.startswith(_ZIP_PREFIX) or magic.startswith(_ZIP_SUFFIX):
...
-> 1334 raise BadZipFile("File is not a zip file")
1335 if self.debug > 1:
1336 print(endrec)

BadZipFile: File is not a zip file
Output is truncated. View as a scrollable element or open in a text editor. Adjust cell output settings...

[beat-buesser]

Hi @LYBAB2 Try deleting the file mint.npz in your local directory .art to start a new download. It looks like it got corrupted during the first download.

[beat-buesser]

I'm converting this issue into a Discussion.