How to unpack 7-Zip.gz (.gz) with Python?
I have a .tar.gz file which I want to unpack (when I unpack with 7-Zip manually, I am getting a .tar file inside). I am able to unpack this .tar file easily then with Python tarfile module then.
When I right-click the .tar.gz file in Windows Explorer, I can see under Type of file: 7-Zip.gz (.gz). I have tried using gzip module (gzip.open), however I am getting a an exception 'Not a gzipped file'. So there should be some other way to go.
I have searched the Internet and seen that people use 7-Zip manually or some batch commands, however I cannot find a way to do this in Python. I am on Python 2.7.
The tarfile library is able to read gzipped tar files. You should look at the examples here:
The first example might accomplish what you want. It extracts the content of the archive to the current working directory:
import tarfile tar = tarfile.open("sample.tar.gz") tar.extractall() tar.close()
import os import tarfile import zipfile def extract_file(path, to_directory='.'): if path.endswith('.zip'): opener, mode = zipfile.ZipFile, 'r' elif path.endswith('.tar.gz') or path.endswith('.tgz'): opener, mode = tarfile.open, 'r:gz' elif path.endswith('.tar.bz2') or path.endswith('.tbz'): opener, mode = tarfile.open, 'r:bz2' else: raise ValueError, "Could not extract `%s` as no appropriate extractor is found" % path cwd = os.getcwd() os.chdir(to_directory) try: file = opener(path, mode) try: file.extractall() finally: file.close() finally: os.chdir(cwd)
This is the example from the python-docs and should work:
import gzip f = gzip.open('file.txt.gz', 'rb') file_content = f.read() f.close()