# серверный файл:
import socket
import os
from sys import exit

# config
host          = '192.168.1.69'
port          = 9090
server_work   = True
# ------

sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
sock.bind((host, port))

clients = []

while server_work == True:

    try:
        data, addr = sock.recvfrom(1024)

        if data != '':
            print(data.upper())
        else:
            continue
    except:
        print('[ server closed ]')

sock.close()

# клиентский файл:

import socket
import os
import time

# config
host          = '192.168.1.69'
port          = 0               # connect-port
server_work   = True
# ------

sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
sock.bind((host, port))
# (в доработке)

# приложение запуска сервера:

from tkinter import *
from os import system, startfile
import socket
import config
from time import sleep

root = Tk()
root.title('Server settings')
root.geometry('395x400')
root.resizable(0, 0)

def start_file():
    startfile('server.py')

def start_server():
    host_ent.insert(0, config.HOST)
    port_ent.insert(0, config.PORT)
    host_ent.config(state=DISABLED)
    port_ent.config(state=DISABLED)
    start_file()

#button`s
server_start = Button(root, text='Start', font='Arial 35', padx='36', bg='gray', command=start_server)
exit = Button(root, text='Exit', font='Arial 35', padx='13', bg='gray', command=exit)

#label`s
host = Label(root, text='HOST: ', font='Arial 30')
port = Label(root, text='PORT: ', font='Arial 30')

#entry`s
host_ent = Entry(root, font='Arial 20', state=NORMAL, width=15)
port_ent = Entry(root, font='Arial 20', state=NORMAL, width=15)

server_start.place(x=15, y=20)
exit.place(x=236, y=20)

host.place(x=13, y=135)
port.place(x=13, y=195)

host_ent.place(x=150, y=145)
port_ent.place(x=150, y=202)

root.mainloop()