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#!/usr/bin/env python3

# -*- coding: utf-8 -*-

import subprocess

print('$ nslookup www.python.org')

r = subprocess.call(['nslookup', 'www.python.org'])

print('Exit code:', r)

print('$ nslookup')

p = subprocess.Popen(['nslookup'], stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE)

output, err = p.communicate(b'set q=mx\npython.org\nexit\n')

print(output.decode('utf-8'))

print('Exit code:', p.returncode)