How to unpack pkl file?

Question

I have a pkl file from MNIST dataset, which consists of handwritten digit images.

I\'d like to take a look at each of those digit images, so I need to unpack the pkl fil

Answer 1

Handy one-liner

pkl() (
  python -c 'import pickle,sys;d=pickle.load(open(sys.argv[1],"rb"));print(d)' "$1"
)
pkl my.pkl

Will print __str__ for the pickled object.

The generic problem of visualizing an object is of course undefined, so if __str__ is not enough, you will need a custom script.