GZip error
ananyag16 opened this issue · comments
I am getting the following error on running the train.py file:
File "train_models.py", line 110, in <module>
train(MNIST(), "models/mnist", [32, 32, 64, 64, 200, 200], num_epochs=50)
File "/users/btech/ananyag/Desktop/ugp/nn_robust_attacks/setup_mnist.py", line 49, in __init__
train_data = extract_data("data/train-images-idx3-ubyte.gz", 60000)
File "/users/btech/ananyag/Desktop/ugp/nn_robust_attacks/setup_mnist.py", line 23, in extract_data
bytestream.read(16)
File "/usr/lib/python3.8/gzip.py", line 292, in read
return self._buffer.read(size)
File "/usr/lib/python3.8/_compression.py", line 68, in readinto
data = self.read(len(byte_view))
File "/usr/lib/python3.8/gzip.py", line 479, in read
if not self._read_gzip_header():
File "/usr/lib/python3.8/gzip.py", line 427, in _read_gzip_header
raise BadGzipFile('Not a gzipped file (%r)' % magic)
gzip.BadGzipFile: Not a gzipped file (b'<!')
Can anyone please suggest the solution?
Probably data/train-images-idx3-ubyte.gz is an HTML file if I had to guess. If you just cat data/train-images-idx3-ubyte.gz you'll probably see somethingl ike <!DOCTYPE html> given what those first two bytes are. Assuming this is the case, you'll want to get a correct version of this file. (Or, if the link used in this repo has now gone stale, please let me know and I'll update it.)
Yes, the file is an HTML file. I am using the file from your repo only, so if you could check the link once, it would be extremely helpful.