python extract gz file
import tarfile
#simple function to extract the train data
#tar_file : the path to the .tar file
#path : the path where it will be extracted
def extract(tar_file, path):
opened_tar = tarfile.open(tar_file)
if tarfile.is_tarfile(tar_file):
opened_tar.extractall(path)
else:
print("The tar file you entered is not a tar file")
extract('/kaggle/input/gnr-638/train.tar.xz', '/kaggle/working/gnr-638')
extract('/kaggle/input/gnr-638/test_set.tar.xz', '/kaggle/working/gnr-638')