pipe/stream gnupg output to tarfile in

Question

I have the following code but obviously this is not real streaming. It is the best I could find but it reads the whole input file into memory first. I want to stream it to tarfi

Answer 1

Apparently, you cannot use real streaming using gpnupg module, gnupg module always reads whole output of gnupg into memory. So to use real streaming, you'll have to run gpg program directly. Here is a sample code (without proper error handling):

import subprocess
import tarfile

with open('103330-013.tar.gpg', 'r') as input_file:
   gpg = subprocess.Popen(("gpg", "--decrypt", "--homedir", 'C:/Users/niels/.gnupg', '--passphrase', 'aaa'), stdin=input_file, stdout=subprocess.PIPE)
   tar = tarfile.open(fileobj=gpg.stdout, mode="r|")
   tar.extractall()
   tar.close()