add old lci module
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#!/usr/bin/env python3
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#-------------------------------------------------------------
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# 以下区域是我的代码
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'''
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【项目简介】 网络聊天室 v0.0.2
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【加入项目】
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注意代码只添加不修改，你可以写个函数，署名
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不要修改别人的代码。
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【基线规则】
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在自己的区域修改代码，谁的代码能跑就加入主线
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除此之外只在各自的测试区域内运行
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【设计思路】
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建议一个项目一个文件先，容易分发
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【测试方式】
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服务器进程： python chat.py --type=server
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客户端进程： python chat.py
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--------------------------------
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--------------------------------
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--------------------------------
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【项目名称】 网络聊天室 v 0.0.3 （20250524）
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我们会将新版本加入pmc.cops中作为常驻服务
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【改进计划】
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1.我们专门设置了一个只发送一条消息就关闭的函数以供别的文件调用
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2.我们将端口暴露在了公网下，以测试连接情况，发现并修复了许多bug。
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3.我们设置欢迎信息只在服务端可见。
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【使用方法】
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python chat.py [--type=server|client] [--addr=localhost] [--port=8003] [--name=Unknow]
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【记得反馈！】
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期待您将反馈发送至gitee
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----------------------------------------
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########################################
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########################################
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网络聊天室 version 0.1.0
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使用方法 python chat.py [--addr=localhost] [--port=8003] [--name=Unknow]
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'''
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import argparse
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import socket
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import select
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import threading
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import sys
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import time
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class ChatClient:
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def __init__(self, addr: str, port: int, your_name: str):
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self.addr: str = addr
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self.port: int = port
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self.name: str = your_name
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def send_client(self, msg: str):
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'''发送消息给聊天室服务器。'''
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try:
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with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
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s.settimeout(5) # 设置连接超时
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s.connect((self.addr, self.port))
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s.settimeout(None) # 连接成功后取消超时
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s.sendall(f"{self.name}: {msg}".encode('utf-8'))
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except (ConnectionRefusedError, socket.timeout):
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print(f"Could not connect to {self.addr}:{self.port} - message not sent")
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except Exception as e:
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print(f"Unexpected error while sending message: {e}")
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def recv_loop(self, s: socket.socket):
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"""
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接收消息的函数，持续从服务器接收消息并打印。
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Args:
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s (socket.socket): 连接的套接字对象
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使用select监视套接字状态，当套接字可读时接收消息并打印。
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"""
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socklist = [s]
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while self.running:
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try:
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readable, _, exception = select.select(socklist, [], socklist, 0.1)
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if readable != []:
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try:
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msg = readable[0].recv(8092)
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if msg:
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print(msg.decode('utf-8'))
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else:
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# 服务器关闭连接
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print("Connection closed by server.")
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return False # 返回False表示需要重连
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except ConnectionResetError:
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print("Connection reset by server.")
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return False # 返回False表示需要重连
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if exception != []:
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print("Exception on socket, closing...")
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return False # 返回False表示需要重连
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except ValueError:
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... # 程序退出了会抛出这个异常
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except OSError as e:
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# 处理socket错误
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print(f"Socket error: {e}")
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return False # 返回False表示需要重连
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return True # 正常退出
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def _lexer(self, input_data: str):
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'''如果不需要发送则返回None。'''
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if input_data == "quit":
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self.running = False
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return None
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elif not self.extra_cmd and input_data == "chatgpt":
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self.extra_cmd = "<chatgpt>"
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return None
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elif self.extra_cmd and input_data == "del":
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self.extra_cmd = None
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return None
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elif input_data == "where":
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print(f'---{self.extra_cmd}---')
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return None
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else:
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return input_data
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def _mixup_msg(self, input_data):
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if self.extra_cmd:
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return f"{self.extra_cmd}{input_data}"
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else:
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return input_data
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def send_p(self,):
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'''读取并且发送消息的进程'''
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self.extra_cmd = None
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while self.running:
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try:
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# 使用input()替代select.select()，更兼容Windows
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input_data = input().strip()
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input_data = self._lexer(input_data)
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if input_data: # 如果不需要发送，_lexer返回None
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input_data = self._mixup_msg(input_data)
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self.send_client(input_data)
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except EOFError:
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# 处理Ctrl+D等情况
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break
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except Exception as e:
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# 捕获其他异常，防止程序崩溃
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print(f"Input error: {e}")
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continue
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def _connect_and_print(self, s: socket.socket):
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s.connect((self.addr, self.port))
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print(f'Connected to {self.addr}:{self.port}')
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def _sleep_if_reconnect(self, reconnect_count: int):
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"""根据重连次数计算等待时间，实现指数退避策略"""
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if self.running:
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# 指数退避：1, 2, 4, 8, 16秒，最大30秒
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wait_time = min(2 ** (reconnect_count - 1), 30)
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# 确保第一次重连等待时间为1秒
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if reconnect_count == 1:
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wait_time = 1
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print(f"准备重连... 等待 {wait_time} 秒 (第 {reconnect_count} 次尝试)")
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time.sleep(wait_time)
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def recv_client(self):
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"""客户端主函数，建立与服务器的连接并管理消息收发"""
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self.running = True
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self.th = threading.Thread(target=self.send_p)
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self.th.start()
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reconnect_count = 0
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max_reconnect_attempts = 10 # 最大重连尝试次数
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while self.running and reconnect_count < max_reconnect_attempts:
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try:
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with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
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s.settimeout(5) # 设置连接超时时间
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self._connect_and_print(s)
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s.settimeout(None) # 连接成功后取消超时
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# 运行接收循环，如果返回False表示需要重连
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if not self.recv_loop(s):
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print("Connection lost, attempting to reconnect...")
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reconnect_count += 1
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self._sleep_if_reconnect(reconnect_count)
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continue
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except socket.timeout:
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print(f"Connection timeout to {self.addr}:{self.port}")
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reconnect_count += 1
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self._sleep_if_reconnect(reconnect_count)
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except ConnectionRefusedError:
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print(f"Could not connect to {self.addr}:{self.port}")
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reconnect_count += 1
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self._sleep_if_reconnect(reconnect_count)
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except Exception as e:
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print(f"Unexpected error: {e}")
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reconnect_count += 1
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self._sleep_if_reconnect(reconnect_count)
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if reconnect_count >= max_reconnect_attempts:
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print(f"Failed to reconnect after {max_reconnect_attempts} attempts. Exiting...")
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# 停止发送线程
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self.running = False
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if self.th.is_alive():
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self.th.join(timeout=2)
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#--------------------------------------------------------------------------------
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#--------------------------------------------------------------------------------
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def main():
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parser = argparse.ArgumentParser(description='聊天室配置。')
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parser.add_argument('--addr', type=str, default='qsont.xyz', help='选择要连接的地址')
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parser.add_argument('--port', type=int, default=8003, help='选择要连接的地址')
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parser.add_argument('--name', type=str, default='Unknow', help='你的名字是什么')
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args = parser.parse_args()
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client = ChatClient(args.addr, args.port, args.name)
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client.recv_client()
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if __name__ == "__main__":
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main()
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