How to unzip gz file using Python

I need to extract a gz file that I have downloaded from an FTP site to a local Windows file server. I have the variables set for the local path of the file, and I know it can be used by GZIP muddle.

How can I do this? The file inside the GZ file is an XML file.

10 Answers

import gzip import shutil with gzip.open('file.txt.gz', 'rb') as f_in: with open('file.txt', 'wb') as f_out: shutil.copyfileobj(f_in, f_out) 

From the documentation:

import gzip with gzip.open('file.txt.gz', 'rb') as f: file_content = f.read() 

Maybe you want pass it to pandas also.

with gzip.open('features_train.csv.gz') as f: features_train = pd.read_csv(f) features_train.head() 

Not an exact answer because you're using xml data and there is currently no pd.read_xml() function (as of v0.23.4), but pandas (starting with v0.21.0) can uncompress the file for you! Thanks Wes!

import pandas as pd import os fn = '../data/file_to_load.json.gz' print(os.path.isfile(fn)) df = pd.read_json(fn, lines=True, compression='gzip') df.tail() 

from sh import gunzip gunzip('/tmp/file1.gz') 

If you are parsing the file after unzipping it, don't forget to use decode() method, is necessary when you open a file as binary.

import gzip with gzip.open(file.gz, 'rb') as f: for line in f: print(line.decode().strip()) 

It is very simple.. Here you go !!

import gzip #path_to_file_to_be_extracted ip = sample.gzip #output file to be filled op = open("output_file","w") with gzip.open(ip,"rb") as ip_byte: op.write(ip_byte.read().decode("utf-8") wf.close() 

You can use gzip.decompress() to do it:

1. read input file using rb mode;
2. open output file using w mode and utf8 encoding;
3. gzip.decompress() input bytes;
4. decode what you get to str.
5. write str to output file.

def decompress(infile, tofile): with open(infile, 'rb') as inf, open(tofile, 'w', encoding='utf8') as tof: decom_str = gzip.decompress(inf.read()).decode('utf-8') tof.write(decom_str) 

If you have the gzip (and gunzip) programs installed on your computer a simple way is to call that command from python:

import os filename = 'file.txt.gz' os.system('gunzip ' + filename) 

optionally, if you want to preserve the original file, use

os.system('gunzip --keep ' + filename) 

if you have a linux environment it is very easy to unzip using the command gunzip. go to the file folder and give as below

gunzip file-name