如何在python中创建有状态服务器

我想做一个代理服务器，它也是有状态的服务器，我的代码只对一个请求起作用。有人知道如何让他一直监听，直到用户关闭窗口或退出

def film_server(req):
    server_film_ip = "54.71.128.194"
    server_port = 92
    with socket.socket() as sock:
        sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        server_address = (server_film_ip, server_port)
        sock.connect(server_address)
        sock.send(req.encode())
        ans = sock.recv(1024).decode()
        return ans

def connect_server():
    PORT = 9090
    with socket.socket() as listening_sock:
        listening_sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        server_address = ('', PORT)
        listening_sock.bind(server_address)
        listening_sock.listen(1)
        client_sock, client_address = listening_sock.accept()
        req = client_sock.recv(1024).decode()
        ans = film_server(req)
        client_sock.send(ans.encode())

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