多线程实现并发的套接字通信

初版，问题，服务端运行于一台机器上，不能无限制的开线程

server

from socket import *
from threading import Thread
def communicate(conn):
    while True:
        try:
            data = conn.recv(1024)
            if not data: break
            conn.send(data.upper())
        except ConnectionResetError:
            break
    conn.close()
def servers(ip,port):
    server = socket(AF_INET, SOCK_STREAM)
    server.bind((ip, port))
    server.listen(5)
    while True:
        conn,addr=server.accept()
        print(conn,addr)
        t=Thread(target=communicate,args=(conn,))
        t.start()
    server.close()
if __name__=="__main__":
    servers("127.0.0.1",8081)

client

from socket import *
client=socket(AF_INET,SOCK_STREAM)
client.connect(("127.0.0.1",8081))
while True:
    msg=input(">>:").strip()
    if not msg:break
    client.send(msg.encode("utf-8"))
    data=client.recv(1024)
    print(data.decode("utf-8"))
client.close()