Python - Bytes Received and Transmitted for Windows

This script will output bytes received and transmitted for a local Windows machine since the last reboot:

import re
from subprocess import Popen, PIPE

p = Popen('net statistics workstation', stdout=PIPE)
for line in p.stdout:
    m = re.search('Bytes received\W+(.*)', line)
    if m: print 'Bytes received: %s' % (m.group(1))
    m = re.search('Bytes transmitted\W+(.*)', line)
    if m: print 'Bytes transmitted: %s' % (m.group(1))