My code is not working may you help me please $,$ in comments is the old version i tried to make it pretier but is not working

client:

import socket

import threading

import sys

import tkinter

import tkinter.scrolledtext

from tkinter import simpledialog

$\text{'}\text{'}\text{'}$def main$($username$,$ hostname, port$)$:

client $=$ socket.socket$($socket$.$AF$\_$INET, socket.SOCK$\_$STREAM$)$

try:

client.connect$(($hostname$,$ port$))$

except Exception as e:

print$($f$"$Could not connect: $\{$e$\}")$

return

def receive$\_$messages$()$:

while True:

try:

message $=$ client.recv$(1024).$decode$()$

if message:

print$($message$)$

else:

break

except:

print$("$Disconnected from server."$)$

client.close$()$

break

def write$()$:

while True:

try:

message $=$ input$()$

if message $=="/$exit$"$:

client.send$("/$exit$".$encode$())$

break

else:

client.send$($message$.$encode$())$

except:

print$("$An error occurred."$)$

client.close$()$

break

client.send$($username$.$encode$())$

threading.Thread$($target$=$receive$\_$messages$).$start$()$

threading.Thread$($target$=$write$).$start$()$

if $\_\_$name$\_\_=="\_\_$main$\_\_"$:

if len$($sys$.$argv$)<4$:

print$("$Usage: python client.py username hostname port"$)$

else:

main$($sys$.$argv$[1],$ sys$.$argv$[2],$ int$($sys$.$argv$[3]))\text{'}\text{'}\text{'}$

class client:

def $\_\_$init$\_\_($self$,$ username, hostname $,$ port$)$:

self.sock $=$ socket.socket$($socket$.$AF$\_$INET, socket.SOCK$\_$STREAM$)$

self.sock.connect$(($hostname$,$ port $))$

msg $=$ tkinter.Tk$()$

msg$.$withdraw$()$

self.nickname $=$ username

self.gui$\_$done $=$ False

self.running $=$ True

gui$\_$thread $=$ threading.Thread$($target$=$self.gui$\_$loop$)$

receive$\_$thread $=$ threading.Thread$($target$=$self.receive$)$

gui$\_$thread.start$()$

receive$\_$thread.start$()$

def gui$\_$loop$($self$)$:

self.win $=$ tkinter.Tk$()$

self.win.configure$($bg$=$"ligthgray"$)$

self.chat$\_$label $=$ tkinter.Label$($self$.$win, text$=$"Chat:", bg$=$"lightgray"$)$

self.chat$\_$label.config$($font$=("$Times new roman", $12))$

self.chat$\_$label.pack$($padx$=20,$ pady$=5)$

self.text$\_$area $=$ tkinter.scrolledtext.ScrolledText$($self$.$win$)$

self.text$\_$area.pack$($padx$=20,$ pady$=5)$

self.text$\_$area.config$($state$=$"disabled"$)$

self.msg$\_$label $=$ tkinter.Label$($self$.$win, text$=$"Message", bg$=$"lightgray"$)$

self.msg$\_$label.config$($font$=("$Times new roman", $12))$

self.msg$\_$label.pack$($padx$=20,$ pady$=5)$

self.input$\_$area $=$ tkinter.Text$($self$.$win, height$=3)$

self.input$\_$area.pack$($padx$=20,$ pady$=5)$

self.send$\_$button $=$ tkinter.Button$($self$.$win, text$=$"Send", command$=$ self.write$)$

self.send$\_$button.config$($font$=("$Times new roman", $12))$

self.send$\_$button.pack$($padx$=20,$ pady$=5)$

self.gui$\_$done $=$ True

self.win.protocol$("$WM$\_$DELETE$\_$WINDOW", self.stop$)$

self.win.mainloop$()$

def write$($self$)$:

message $=$ f$"\{$self$.$username$\}$: $\{$self$.$input$\_$area.get$(\text{'}1\mathrm{.}0\text{'},$ 'end'$)\}"$

self.sock.send$($message$).$encode$()$

self.input$\_$area.delete$(\text{'}1\mathrm{.}0\text{'},$ 'end'$)$

def stop$($self$)$:

self.running $=$ False

self.win.destroy

self.sock.close$()$

exit$(0)$

def receive$($self$)$:

while self.running:

try:

message $=$ self.scok.recv$(1024).$decode$()$

if message $==$ "Username:":

self.socekt.send$($self$.$username.encode$())$

else:

if self.gui$\_$done:

self.text$\_$area.config$($state$=$"normal"$)$

self.text$\_$area.insert$(\text{'}$end$\text{'},$ message$)$

self.text$\_$area.yview$(\text{'}$end$\text{'})$

self.text$\_$area.config$($state$=$"disabled"$)$

except ConnectionAbortedError:

break

except:

print$("$Error$")$

self.sock.close$()$

break