UnpicklingError: invalid load key, '\x01'.

[ShakhzodbekYuldoshov]

UnpicklingError                           Traceback (most recent call last)
Input In [38], in <cell line: 2>()
      1 print(os.getcwd())
----> 2 data = unpickle(file_path)

Input In [12], in unpickle(file)
      1 def unpickle(file):
      2     with open(file, 'rb') as file:
----> 3         return pickle.load(file, encoding='bytes')

UnpicklingError: invalid load key, '\x01'.
```
## used code:
'''
import pickle

def unpickle(file):
    with open(file, 'rb') as file:
        return pickle.load(file, encoding='bytes')

file_path = './data/traffic_sign/out.bin'
data = unpickle(file_path)
'''

this code is working with original cifar10 dataset but giving error with custom dataset created using convert-images-to-cifar-format.py  code.