TypeError: cannot use a string pattern on a bytes-like object

#!/usr/bin env python

import subprocess
import optparse
import re

def get_arguments():
parser = optparse.OptionParser()
parser.add_option("-i", "--interface", dest="interface", help="Interface to change its MAC address")
parser.add_option("-m", "--mac", dest="new_mac", help="New MAC address")
(options, arguments) = parser.parse_args()
if not options.interface:
parser.error("[-] Please specify an interface, use --help for more info.")
elif not options.new_mac:
parser.error("[-] Please specify an new mac, use --help for more info.")
return options

def change_mac(interface, new_mac):
print("{+++} Changing mac address for " + interface + " to " + new_mac)
subprocess.call(["ifconfig", interface, "down"])
subprocess.call(["ifconfig", interface, "hw", "ether", new_mac])
subprocess.call(["ifconfig", interface, "up"])



options = get_arguments()
change_mac(options.interface, options.new_mac)

ifconfig_result = subprocess.check_output(["ifconfig", options.interface])
print(ifconfig_result)

mac_address_search_result = re.search(r"\w\w:\w\w:\w\w:\w\w:\w\w:\w\ w", ifconfig_result)
print(mac_address_search_result.group(0) )

Миниатюры

 

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subprocess.check_output возвращает байты, re.search принимает строки, все логично.

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