Python 3 re module. “cannot use a string pattern on a bytes-like object”. Mac changer
I've built a program to change my Mac address.The following part works just fine:
import subprocess
import optparse
import re
def get_arguments():
parser = optparse.OptionParser()
parser.add_option("-i", "--interface", dest="interface", help="interface que terá seu Mac alterado")
parser.add_option("-n","--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 a Mac. Use --help for mmore info")
return options
def change_mac(interface, new_mac):
print("[+] Changing Mac address for " + interface + " to " + new_mac)
subprocess.call("sudo ip link set dev " + interface + " down", shell=True)
subprocess.call("sudo ip link set dev " + interface + " address " + new_mac, shell=True)
subprocess.call("sudo ip link set dev " + interface + " up", shell=True)
print("***************************************************")
options = get_arguments()
change_mac(options.interface, options.new_mac)
The problem is here:
ifconfig_result = subprocess.check_output(["ifconfig", options.interface])
mac_address_search_result = re.search(r"ww:ww:ww:ww:ww:ww", ifconfig_result)
print(mac_address_search_result.group(0))
I'm receiving the following error when I try to run the program:
[+] Changing Mac address for enp5s0 to 00:1B:44:11:3A:B7
Traceback (most recent call last): File "mac_changer.py", line 31,
in
mac_address_search_result = re.search(r"ww:ww:ww:ww:ww:ww", ifconfig_result) File
"/usr/lib/python3.6/re.py", line 182, in search
return _compile(pattern, flags).search(string) TypeError: cannot use a string pattern on a bytes-like object
I know I don't need the re module, still I would like to use it.
python-3.x
edited Nov 12 at 11:24
Sociopath
3,43281635
asked Nov 12 at 11:23
Eduardo Reis
103
add a comment |
I've built a program to change my Mac address.The following part works just fine:
import subprocess
import optparse
import re
def get_arguments():
parser = optparse.OptionParser()
parser.add_option("-i", "--interface", dest="interface", help="interface que terá seu Mac alterado")
parser.add_option("-n","--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 a Mac. Use --help for mmore info")
return options
def change_mac(interface, new_mac):
print("[+] Changing Mac address for " + interface + " to " + new_mac)
subprocess.call("sudo ip link set dev " + interface + " down", shell=True)
subprocess.call("sudo ip link set dev " + interface + " address " + new_mac, shell=True)
subprocess.call("sudo ip link set dev " + interface + " up", shell=True)
print("***************************************************")
options = get_arguments()
change_mac(options.interface, options.new_mac)
The problem is here:
ifconfig_result = subprocess.check_output(["ifconfig", options.interface])
mac_address_search_result = re.search(r"ww:ww:ww:ww:ww:ww", ifconfig_result)
print(mac_address_search_result.group(0))
I'm receiving the following error when I try to run the program:
[+] Changing Mac address for enp5s0 to 00:1B:44:11:3A:B7
Traceback (most recent call last): File "mac_changer.py", line 31,
in
mac_address_search_result = re.search(r"ww:ww:ww:ww:ww:ww", ifconfig_result) File
"/usr/lib/python3.6/re.py", line 182, in search
return _compile(pattern, flags).search(string) TypeError: cannot use a string pattern on a bytes-like object
I know I don't need the re module, still I would like to use it.
python-3.x
edited Nov 12 at 11:24
Sociopath
3,43281635
asked Nov 12 at 11:23
Eduardo Reis
103
Sounds like you have to convert you result from bytes to a string, maybe ifconfig_result.decode("utf8").
– matt
Nov 12 at 11:27
add a comment |
I've built a program to change my Mac address.The following part works just fine:
import subprocess
import optparse
import re
def get_arguments():
parser = optparse.OptionParser()
parser.add_option("-i", "--interface", dest="interface", help="interface que terá seu Mac alterado")
parser.add_option("-n","--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 a Mac. Use --help for mmore info")
return options
def change_mac(interface, new_mac):
print("[+] Changing Mac address for " + interface + " to " + new_mac)
subprocess.call("sudo ip link set dev " + interface + " down", shell=True)
subprocess.call("sudo ip link set dev " + interface + " address " + new_mac, shell=True)
subprocess.call("sudo ip link set dev " + interface + " up", shell=True)
print("***************************************************")
options = get_arguments()
change_mac(options.interface, options.new_mac)
The problem is here:
ifconfig_result = subprocess.check_output(["ifconfig", options.interface])
mac_address_search_result = re.search(r"ww:ww:ww:ww:ww:ww", ifconfig_result)
print(mac_address_search_result.group(0))
I'm receiving the following error when I try to run the program:
[+] Changing Mac address for enp5s0 to 00:1B:44:11:3A:B7
Traceback (most recent call last): File "mac_changer.py", line 31,
in
mac_address_search_result = re.search(r"ww:ww:ww:ww:ww:ww", ifconfig_result) File
"/usr/lib/python3.6/re.py", line 182, in search
return _compile(pattern, flags).search(string) TypeError: cannot use a string pattern on a bytes-like object
I know I don't need the re module, still I would like to use it.
python-3.x
edited Nov 12 at 11:24
Sociopath
3,43281635
asked Nov 12 at 11:23
Eduardo Reis
103
I've built a program to change my Mac address.The following part works just fine:
import subprocess
import optparse
import re
def get_arguments():
parser = optparse.OptionParser()
parser.add_option("-i", "--interface", dest="interface", help="interface que terá seu Mac alterado")
parser.add_option("-n","--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 a Mac. Use --help for mmore info")
return options
def change_mac(interface, new_mac):
print("[+] Changing Mac address for " + interface + " to " + new_mac)
subprocess.call("sudo ip link set dev " + interface + " down", shell=True)
subprocess.call("sudo ip link set dev " + interface + " address " + new_mac, shell=True)
subprocess.call("sudo ip link set dev " + interface + " up", shell=True)
print("***************************************************")
options = get_arguments()
change_mac(options.interface, options.new_mac)
The problem is here:
ifconfig_result = subprocess.check_output(["ifconfig", options.interface])
mac_address_search_result = re.search(r"ww:ww:ww:ww:ww:ww", ifconfig_result)
print(mac_address_search_result.group(0))
I'm receiving the following error when I try to run the program:
[+] Changing Mac address for enp5s0 to 00:1B:44:11:3A:B7
Traceback (most recent call last): File "mac_changer.py", line 31,
in
mac_address_search_result = re.search(r"ww:ww:ww:ww:ww:ww", ifconfig_result) File
"/usr/lib/python3.6/re.py", line 182, in search
return _compile(pattern, flags).search(string) TypeError: cannot use a string pattern on a bytes-like object
I know I don't need the re module, still I would like to use it.
python-3.x
python-3.x
edited Nov 12 at 11:24
Sociopath
3,43281635
asked Nov 12 at 11:23
Eduardo Reis
103
edited Nov 12 at 11:24
Sociopath
3,43281635
asked Nov 12 at 11:23
Eduardo Reis
103
edited Nov 12 at 11:24
Sociopath
3,43281635
edited Nov 12 at 11:24
Sociopath
3,43281635
edited Nov 12 at 11:24
Sociopath
3,43281635
3,43281635
asked Nov 12 at 11:23
Eduardo Reis
103
asked Nov 12 at 11:23
Eduardo Reis
103
asked Nov 12 at 11:23
Eduardo Reis
103
103
Sounds like you have to convert you result from bytes to a string, maybe ifconfig_result.decode("utf8").
– matt
Nov 12 at 11:27
add a comment |
Sounds like you have to convert you result from bytes to a string, maybe ifconfig_result.decode("utf8").
– matt
Nov 12 at 11:27
Sounds like you have to convert you result from bytes to a string, maybe ifconfig_result.decode("utf8").
– matt
Nov 12 at 11:27
Sounds like you have to convert you result from bytes to a string, maybe ifconfig_result.decode("utf8").
– matt
Nov 12 at 11:27
add a comment |
1 Answer
1
active
oldest
votes
As the error suggests, ifconfig_result is of type bytes, but re.search (and the other re functions) expect str.
You can fix this by simply converting ifconfig_result to str with decode:
ifconfig_result = subprocess.check_output(["ifconfig", options.interface]).decode()
answered Nov 12 at 11:27
DeepSpace
36.7k44169
add a comment |
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1 Answer
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1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
As the error suggests, ifconfig_result is of type bytes, but re.search (and the other re functions) expect str.
You can fix this by simply converting ifconfig_result to str with decode:
ifconfig_result = subprocess.check_output(["ifconfig", options.interface]).decode()
answered Nov 12 at 11:27
DeepSpace
36.7k44169
add a comment |
As the error suggests, ifconfig_result is of type bytes, but re.search (and the other re functions) expect str.
You can fix this by simply converting ifconfig_result to str with decode:
ifconfig_result = subprocess.check_output(["ifconfig", options.interface]).decode()
answered Nov 12 at 11:27
DeepSpace
36.7k44169
add a comment |
As the error suggests, ifconfig_result is of type bytes, but re.search (and the other re functions) expect str.
You can fix this by simply converting ifconfig_result to str with decode:
ifconfig_result = subprocess.check_output(["ifconfig", options.interface]).decode()
answered Nov 12 at 11:27
DeepSpace
36.7k44169
As the error suggests, ifconfig_result is of type bytes, but re.search (and the other re functions) expect str.
You can fix this by simply converting ifconfig_result to str with decode:
ifconfig_result = subprocess.check_output(["ifconfig", options.interface]).decode()
answered Nov 12 at 11:27
DeepSpace
36.7k44169
answered Nov 12 at 11:27
DeepSpace
36.7k44169
answered Nov 12 at 11:27
DeepSpace
36.7k44169
answered Nov 12 at 11:27
DeepSpace
36.7k44169
36.7k44169
add a comment |
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Sounds like you have to convert you result from bytes to a string, maybe ifconfig_result.decode("utf8").
– matt
Nov 12 at 11:27