Python equivalent of piping file output to gzip in Perl using a pipe

Question

I need to figure out how to write file output to a compressed file in Python, similar to the two-liner below:

open ZIPPED, \"| gzip -c > zipped.gz\";
print ZI         


        

Answer 1

In addition to @srgerg's answer I want to apply same approach by disabling shell option shell=False, which is also done on @Moishe Lettvin's answer and recommended on (https://stackoverflow.com/a/3172488/2402577).

import subprocess
def zip():
    f = open("zipped.gz", "w")
    p1 = subprocess.Popen(["echo", "Hello World"], stdout=subprocess.PIPE)
    p2 = subprocess.Popen(["gzip", "-9c"], stdin=p1.stdout, stdout=f)
    p1.stdout.close()
    p2.communicate()
    f.close()

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Please not that originally I am using this p1s output for git diff as:

p1 = subprocess.Popen(["git", "diff"], stdout=subprocess.PIPE)