Python Network Programming Multi-threaded Simultaneous Receiving and Sending

'''
Mimic qq can send and receive messages at the same time multithreaded
'''


from socket import *
from time import sleep
import threading

# Responsible for receiving data
def recvData():
  udpRecvSocket = socket(AF_INET,SOCK_DGRAM)
  # Use port 8080 by default
  myRecvPort = 8080
  bindAddr = ('',8080)
  #try to prevent the port from being taken, and if it is, you have one chance to change it, and the system crashes anyway.
  try:
    #Binding Address
    (bindAddr)
  # Modifications after port is occupied
  except OSError:
    myRecvPort = int(input("Please enter the local acceptance port port:"))
    bindAddr = ('',myRecvPort)
    (bindAddr)
  Methods in the #socket module to get username and ip address.
  myIpAddr = gethostbyname(getfqdn(gethostname()))
  # Print local ip address and port used
  print("dispenseripaddress[{}]，The port that accepts data is[{}]".format(myIpAddr,myRecvPort))

  # Prevent anomalies caused by partial loss of received messages
  while True:
    try:
      recvData = (1024) # Maximum number of bytes is 1024
      #recvData = ('GB2312')
      print('The output from the other computer is：{}'.format(recvData))
    except error as e:
      print(e)


# Responsible for sending data
def sendData():
  #To prevent the risk of simultaneous input with the above, so send data and pause for 10 seconds before running again.
  sleep(10)
  udpSendSocket = socket(AF_INET,SOCK_DGRAM)
  #The user inputs the receiver information and stores it in sendAddr.
  sendIpAddr = input('Please enter the recipient's ip address:')
  sendPort = int(input('Please enter the recipient's port:'))
  sendAddr = (sendIpAddr,sendPort)


  while True:
    sendData = input('Please enter the content to be sent:')
    ((),sendAddr)


# Responsible for multi-threading
def main():
  # Multi-threading two methods at the same time
  t1 = (target=recvData)
  t2 = (target=sendData)
  ()
  ()
  ()
  ()


if __name__ == '__main__':
  main()