多线程socket聊天

import socket

sk = socket.socket()
sk.connect(('127.0.0.1',8080))

msg = sk.recv(1024)
print(msg)
inp = input('>>> ').encode('utf-8')
sk.send(inp)
sk.close()

#server
import socket
from threading import Thread

def chat(conn):
    conn.send(b'hello')
    msg = conn.recv(1024).decode('utf-8')
    print(msg)
    conn.close()

sk = socket.socket()
sk.bind(('127.0.0.1',8080))
sk.listen()
while True:
    conn,addr = sk.accept()
    Thread(target=chat,args = (conn,)).start()
sk.close()