2022.09.03

import tkinter as tk
import socket
from _thread import *

c_list = []
close = False
server_socket = None

def createNewWindow():

    def threaded(client_socket, addr):
        global chat_log
        chat_log['state'] = 'normal'
        chat_log.insert("end", 'Connected by :' + addr[0] + ':' + str(addr[1]) + '\n')
        chat_log['state'] = 'disabled'
        for c in c_list:
            c.sendall(('[System] ' + str(addr[1]) + ' 님이 접속하였습니다.').encode())
        while 1:
            try:
                data = client_socket.recv(1024)
                chat_log['state'] = 'normal'
                chat_log.insert("end",
                                'Received from ' + addr[0] + ' : ' + str(addr[1]) + ' :: ' + str(data.decode()) + '\n')
                chat_log['state'] = 'disabled'
                for c in c_list:
                    print(c)
                    print(client_socket)
                    print(1)
                    c.sendall((str(addr[1]) + ' : ' + data.decode()).encode())
            except ConnectionResetError as e:
                c_list.remove(client_socket)
                for c in c_list:
                    c.sendall(('[System] ' + str(addr[1]) + ' 님이 나갔습니다.').encode())
                chat_log['state'] = 'normal'
                chat_log.insert("end", 'Disconnected by ' + addr[0] + ':' + str(addr[1]) + '\n')
                chat_log['state'] = 'disabled'
                break
        client_socket.close()

    def server_open():
        HOST = ip_entry.get()
        PORT = int(port_entry.get())
        start_new_thread(make_server, (HOST, PORT))
        open_button['state'] = 'disabled'
        ip_entry['state'] = 'readonly'
        port_entry['state'] = 'readonly'

    def server_close():
        exit()

    def make_server(HOST, PORT):
        global server_socket
        server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

        # 포트사용중이라 연결할 수 없다는 WinError 10048 에러를 해결하기 위해 필요합니다.
        # 서버 소켓의 SOL_SOCKET의 SO_REUSEADDR(이미 사용중인 포트에 대해서도 바인드 허용) 를 1(True)로 설정하는 것으로 이해
        server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
        print(server_socket)

        server_socket.bind((HOST, PORT))
        server_socket.listen()
        chat_log['state'] = 'normal'
        chat_log.insert("end", 'Server Start\n')
        chat_log['state'] = 'disabled'

        while 1:
            print(1)
            client_socket, addr = server_socket.accept()
            print(client_socket, '111', addr)
            c_list.append(client_socket)
            start_new_thread(threaded, (c_list[-1], addr))

    s_root = tk.Toplevel(root)

    s_root.geometry('500x500')
    s_root.title('Server')
    s_root.resizable(False, False)

    ''' Top Menu '''
    tk.Label(s_root, text='Server IP : ').place(x=20, y=20)
    tk.Label(s_root, text='Port : ').place(x=250, y=20)
    ip_entry = tk.Entry(s_root, width=14, text='14.33.178.121')
    ip_entry.place(x=83, y=21)
    ip_entry.insert(0, '14.33.178.121')
    port_entry = tk.Entry(s_root, width=5, text='9999')
    port_entry.place(x=290, y=21)
    port_entry.insert(0, '9999')
    open_button = tk.Button(s_root, text='Server Open', command=server_open)
    open_button.place(x=380, y=18)

    ''' Middle Menu '''
    chat_log = tk.Text(s_root, width=65, height=29, state='disabled', spacing2=2)
    chat_log.place(x=20, y=60)

    ''' Bottom Menu '''
    close_button = tk.Button(s_root, text='Server Close', command=server_close)
    close_button.place(x=200, y=460)
    s_root.mainloop()

root = tk.Tk()
root.title('login')
root.geometry('200x200')
lbl = tk.Label(root, text="server IP")
lbl.grid(row=0, column=0)
txt = tk.Entry(root)
txt.grid(row=0, column=1)

lbl = tk.Label(root, text="port")
lbl.grid(row=1, column=0)
txt = tk.Entry(root)
txt.grid(row=1, column=1)
btn = tk.Button(root, text="login", command=createNewWindow)
btn.grid(row=2, column=0)

root.mainloop()

http://pythonstudy.xyz/python/article/122-Tkinter-%EC%9D%B4%EB%B2%A4%ED%8A%B8