Python 7zip bruteforce

7z_bruteforce.py

import subprocess
import sys

def main():
	archive = sys.argv[1]
	dictionary = sys.argv[2]
	with open(dictionary, "r") as dic:
		for line in dic:
			word = line.rstrip('\n')
			stdout = subprocess.call(
				"7z t -p'{0}' {1}".format(word, archive), 
				stderr=subprocess.DEVNULL, 
				stdout=subprocess.DEVNULL, 
				shell=True
			)
			if stdout == 0:
				print("Password found: " + word)
				return
	print("Password not found.")

if __name__ == "__main__":
	if len(sys.argv) == 3:
		main()
	else:
		print("missing args")