Python USES the paramiko module for SSH remote login to upload files and execute

When the program executes, it needs to read two files, command. TXT and ipandpass.txt. The format is as follows:

command.txt:
ThreadNum:1
port:22
local_dir:hello_mkdir
remote_dir:hello_mkdir
alter_auth:chmod 755 hello_mkdir
exec_program:./hello_mkdir
ipandpass.txt:
ip username password

The queue operation in the program is modified by another program, which is really well written.
The program is good or bad, if it is used to do bad things, I first declare that I have nothing to do, I just share my code.
We hope interested comrades will discuss the application of technology.
It USES paramiko, queues, multithreading, and I'll write a little bit about all three. Welcome criticism and correction.
In fact, there are some parts of the program to be optimized.

#function:upload files through ssh protocal and excute the files 
#lib:paramiko
#MyThread:init a thread to run the function
#ThreadPol:init a thread pool
#uploadAndExecu:upload file and excute
#readConf:read config file
#-*- coding = utf-8 -*-

import Queue
import sys
import threading
import paramiko
import socket
from threading import Thread
import time
class MyThread(Thread):
    def __init__(self, workQueue, timeout=1):
        Thread.__init__(self)
        self.timeout = timeout
        self.setDaemon(False)
        self.workQueue = workQueue
        self.start()
        #print 'i am runnning ...'
    def run(self):
        emptyQueue = 0
        while True:
            try:
                callable, username, password, ipAddress, port,comms = self.workQueue.get(timeout = self.timeout)
                #print 'attacking :',ipAddress,username,password,threading.currentThread().getName(),' time : '
                callable(username,password, ipAddress, port,comms)

            except Queue.Empty:
                print threading.currentThread().getName(),":queue is empty ; sleep 5 secondsn"
                emptyQueue += 1
                #judge the queue,if it is empty or not.
                time.sleep(5)
                if emptyQueue == 5:
                    print threading.currentThread().getName(),'i  quit,the queue is empty'
                    break
            except Exception, error:
                print error
class ThreadPool:
    def __init__(self, num_of_threads=10):
        self.workQueue = Queue.Queue()
        self.threads = []
        self.__createThreadPool(num_of_threads)

    #create the threads pool
    def __createThreadPool(self, num_of_threads):
        for i in range(num_of_threads):
            thread = MyThread(self.workQueue)
            self.threads.append(thread)

    def wait_for_complete(self):
        #print len(self.threads)
        while len(self.threads):
            thread = self.threads.pop()
            if thread.isAlive():

                thread.join()
    def add_job(self, callable, username, password, ipAddress, Port,comms):
        self.workQueue.put((callable, username, password, ipAddress, Port,comms))

def uploadAndExecu(usernam,password,hostname,port,comm):
    print usernam,password,hostname,port,comm
    try:

        t = paramiko.Transport((hostname,int(port)))
        t.connect(username=username,password=password)
        sftp=paramiko.SFTPClient.from_transport(t)
        sftp.put(comm['local_dir'],comm['remote_dir'])
    except Exception,e:
        print 'upload files failed:',e
        t.close()
    finally:
        t.close()

    
    try:
        ssh = paramiko.SSHClient()
        ssh.load_system_host_keys()
        ssh.set_missing_host_key_policy(paramiko.MissingHostKeyPolicy())
        ssh.connect(hostname, port=int(port), username=username, password=password)
        ssh.exec_command(comm['alter_auth'])
        ssh.exec_command(comm['exec_program'])
    except Exception,e:
        print 'chang file auth or execute the file failed:',e
    ssh.close()

    
def readConf():
    comm={}
    try:
        f = file('command.txt','r')
        for l in f:
            sp = l.split(':')
            comm[sp[0]]=sp[1].strip('n')
    except Exception,e:
        print 'open file command.txt failed:',e
    f.close()

    return comm
if __name__ == "__main__":

    commandLine = readConf()
    print commandLine 
    #prepare the ips

    wm = ThreadPool(int(commandLine['ThreadNum']))

    try:
        ipFile = file('ipandpass.txt','r')
    except:
        print "[-] ip.txt Open file Failed!"
        sys.exit(1)

    for line in ipFile:
        IpAdd,username,pwd = line.strip('rn').split(' ')
        wm.add_job(uploadAndExecu,username,pwd,IpAdd,commandLine['port'],commandLine)