I want to create a script for unzip (.tar.gz) file via (Python)

Why do you want to "press" twice to extract a .tar.gz, when you can easily do it once? Here is a simple code to extract both .tar and .tar.gz in one go:

import tarfileif fname.endswith("tar.gz"):    tar = tarfile.open(fname, "r:gz")    tar.extractall()    tar.close()elif fname.endswith("tar"):    tar = tarfile.open(fname, "r:")    tar.extractall()    tar.close()

If you are using python 3, you should use shutil.unpack_archive that works for most of the common archive format.

shutil.unpack_archive(filename[, extract_dir[, format]])

Unpack an archive. filename is the full path of the archive. extract_dir is the name of the target directory where the archive is unpacked. If not provided, the current working directory is used.

For example:

def extract_all(archives, extract_path):    for filename in archives:        shutil.unpack_archive(filename, extract_path)

Using context manager:

import tarfile<another code>with tarfile.open(os.path.join(os.environ['BACKUP_DIR'],                  f'Backup_{self.batch_id}.tar.gz'), "r:gz") as so:    so.extractall(path=os.environ['BACKUP_DIR'])