使用UDP未接收消息的Python Server-Client

Question

因此，我正在尝试制作一个Python程序，该程序将文件从客户端传输到服务器，反之亦然，首先，我正在测试一个简单的情况，其中包括从客户端到服务器的简单消息，客户客户端发送消息：“获取文件”，服务器将获取。此消息并发送回另一个消息。问题是客户端发送消息，服务器接收并发送响应，但客户端没有得到它。

server.py

import time

host = 'localhost'
port = 8080
server_address = (host, port)
socket = sk.socket(sk.AF_INET, sk.SOCK_DGRAM)
socket.bind(server_address)

get_files = "get files"

while True:
    print("Waiting for message to receive")
    data, address = socket.recvfrom(4096)
    if data:
        if data.decode() == get_files:
            print("Getting the list of files present")
            time.sleep(1)
            list_files = "List of files"
            send = socket.sendto(list_files.encode(), server_address)
        else:
            break
    else:
        break

client.py

import time

host = 'localhost'
port = 8080
socket = sk.socket(sk.AF_INET, sk.SOCK_DGRAM)
server_address = (host, port)

action = input()

if action == "get files":
    while True:
        print("Sending request to server")
        time.sleep(2)
        send = socket.sendto(action.encode(), server_address)
        print("Request sent. Waiting for response")
        data, server = socket.recvfrom(4096)
        time.sleep(2)
        if data:
            print("List of files present on server:")
            print(data.decode())