Mac Changer v1.0

#!/usr/bin/env python
# Python Mac Changer BETA....
# By infodox - credit to Trip from Hak5 for the getmac function, as mine did not work!
import os
import commands
import sys
# Checking are you r00t
def amiroot():
    if os.geteuid() != 0:
        print "[-] sorry, you need to run this as root"
        sys.exit(1)
    else:
        pass

def getmac(iface):
    data = commands.getoutput("ifconfig " + iface)
    words = data.split()
    found = 0
    for x in words:
        #print x
        if found != 0:
            mac = x
            break
        if x == "HWaddr":
            found = 1
    if len(mac) == 0:
        mac = 'Mac not found'
    mac = mac[:17]
    print mac

print("Welcome to the Pythonized MAC changer v1.0 by infodox")
print("This code is still under development - I have a lot of work to do!")
print("Have fun...")
amiroot()
print("Using GNU macchanger to change your MAC address...")
iface = raw_input("what interface are you changing: ") # Sets the interface to fuck with...
print("[*] Your Current MAC address is: ")
getmac(iface)
print("[+] Putting " + iface + " down") # Nice status report
os.popen("ifconfig " + iface + " down") # Puts interface DOWN
print("[+] Changing your MAC address to something totally random...") # More statuses
os.popen("macchanger --random " + iface) # CHANGES MAC ADDRESS!!!!!!!
print("[+] Putting " + iface + " back up") # Status Report
os.popen("ifconfig " + iface + " up") # Puts interface back up :)
print("[*] Your New MAC address is: ")
getmac(iface)