import tarfile

import gzip

import shutil

import os

# Paths

txz_gz_path = 'path/to/your/archive.txz.gz'

intermediate_txz_path = 'path/to/intermediate/archive.txz'

output_file_path = 'path/to/save/extracted_file.txt'

file_inside_tar = 'file/you/want/to/read.txt'

# Step 1: Decompress the .gz layer

with gzip.open(txz_gz_path, 'rb') as f_in:

with open(intermediate_txz_path, 'wb') as f_out:

shutil.copyfileobj(f_in, f_out)

# Step 2: Decompress the .txz layer

with tarfile.open(intermediate_txz_path, 'r:xz') as tar:

member = tar.getmember(file_inside_tar)

with tar.extractfile(member) as file:

content = file.read()

# Step 3: Save the extracted content

with open(output_file_path, 'wb') as output_file:

output_file.write(content)

# Clean up the intermediate file

os.remove(intermediate_txz_path)

print(f"File has been extracted and saved to {output_file_path}")