带套接字的python聊天室无法正常工作

我正在创建一个带有套接字和线程的聊天室程序，其中一个客户端旨在将消息发送到服务器。然后假定服务器将该消息发送回每个客户端。

问题似乎出在server.py中，当客户端发送消息时，reciever（）似乎没有收到任何消息。

我试过调试，似乎如果我在Listening（）函数中删除了while循环，则reciever（）再次起作用，但是listen（）却坏了。有任何想法吗？

server.py

    import socket, sys, os
    from threading import Thread

    listOfUsers = []

    IP = '192.168.1.128'

    listeningPort = 5000
    recievingPort = 5001
    sendingPort = 5002

    listeningSocket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
    recievingSocket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
    sendingSocket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)

    listeningSocket.bind((IP, listeningPort))
    recievingSocket.bind((IP, recievingPort))

    def listening():
        '''Waits for the a client to send its data( the IP address)
        which is added to listOfUsers'''
        global listOfUsers
        while True:
            print('sdfg')
            data, addr = listeningSocket.recvfrom(4096)
            data = data.decode('utf-8')

            if data not in listOfUsers:
                listOfUsers.append(data)
            else:
                pass


    def reciever():
        '''Waits to recieve incoming messages. Once a message is recieved, this
        function sends the message to every IP address in listOfUsers'''
        while True:
            data, addr = recievingSocket.recvfrom(4096)
            data = data.decode('utf-8')
            with open('E:\\log.txt', 'a') as file:
                file.write(data)
            print(data)
            print(listOfUsers)
            data = data.encode()

            for ip in listOfUsers:
                sendingSocket.sendto(data, (ip, sendingPort))

    def main():
        t1 = Thread(target= listening(), args=())
        t2 = Thread(target= reciever(), args=())


        t1.start()
        t2.start()


    if __name__ == '__main__':
        print('Starting server... \n')
        main()

client.py

import socket, sys, os, datetime
from threading import Thread


name = os.getlogin()

ServerIP = '192.168.1.128'
hostIP = socket.gethostbyname(socket.gethostname())

initialisationPort = 5000
sendingPort = 5001
recievingPort = 5002

initialisationSocket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
sendingSocket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
recievingSocket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)

recievingSocket.bind((hostIP, recievingPort))

def initialisation():
    '''Function runs once. Sends this machine's IP address to the server'''
    hostIPCopy = hostIP.encode('utf-8')
    initialisationSocket.sendto(hostIPCopy, (ServerIP, initialisationPort))



def sender():
    '''Waits for input from the user. Once an input is recieved, it creates
    a message to send to the server'''
    while True:
        message = input()
        if message == "end":
            sendingSocket.close()
            recievingSocket.close()
            sys.exit()
        time = datetime.datetime.now().strftime("%m-%d-%Y | %H:%M")
        message = '{0} - {1}: {2}' .format(time, name, message)
        sendingSocket.sendto(message.encode('utf-8'), (ServerIP, sendingPort))

def reciever():
    '''Waits for any incoming message from the server'''
    while True:
        data, addr = recievingSocket.recvfrom(4096)
        data = data.decode('utf-8')

        print(data)


def main():
    initialisation()

    t1 = Thread(target=sender, args=())
    t2 = Thread(target=reciever, args =())

    t1.start()
    t2.start()



if __name__ == '__main__':
    print('Enter anything to send to chatroom. Enter "end" to quit.')
    main()