Python Forum

I cannot change the MAC address in my Kali VM with this Python code:

interface = input("interface > ")
new_mac = input("new MAC > ")
subprocess.call(["ifconfig", interface, "down"])
subprocess.call(["sudo", "-S", "macchanger", "--mac=", new_mac, "", interface])
subprocess.call(["ifconfig", interface, "up"])

but I could change it with this code:

interface = input("interface > ")
new_mac = input("new MAC > ")
subprocess.call("ifconfig " + interface + " down" , shell=True)
subprocess.call("sudo -S macchanger --mac=" + new_mac + " " + interface, shell=True)
subprocess.call("ifconfig " + interface + " up", shell=True)

Here are the input commands and the error:

Error:interface > eth0
new MAC > 00:11:11:11:11:11
[+] Changing MAC address for eth0 to 00:11:11:11:11:11
SIOCSIFFLAGS: Operation not permitted
[ERROR] Set device name: No such device
SIOCSIFFLAGS: Operation not permitted

I also always get the

Error:
SIOCSIFFLAGS: Operation not permitted

error, I would like to fix that too.

inkmin