You should review the protocol

[oseasandrepro]

Exchange messages - The SRPC protocol - using string and Python tuple could affect negatively the extension of the LIB to anothers languages.

And Review conect and close conections, bewtween server and client Also consider design and implement an "framed protocol"

[oseasandrepro]

I will close each connection after handle the request.
Here in server-seide, I will close connection affeter sendall.

    def __handle_request(self, client_socket, client_addr):
        with client_socket:
            try:
                msg = client_socket.recv(1024)
                request_tuple = self.__serializer.deserialize(msg)
                procedure_name = request_tuple[0]

                if isinstance(request_tuple, list):
                    self.__logger.info(f"Request: {request_tuple} from: {client_addr[0]}")
                    start_time = time.time()  # Start time measurement
                    result = self.__call_procedure(request_tuple)
                    end_time = time.time()  # End time measurement
                    response = ("200", "", result)
                    self.__mestrics.inc_counter_success(f"{procedure_name}")
                    self.__mestrics.record_time(f"{procedure_name}", end_time - start_time)
                else:
                    raise SrpcProcUnvailException("The program cannot support the requested procedure.")
            except SrpcProcUnvailException as e:
                self.__logger.info(f"Procedure [{procedure_name}] is unavailable: {e.message}")
                response = ("404", e.message, type(e).__name__)
            except Exception as e:
                self.__logger.error(f"Procedure [{procedure_name}] call error: {e}")
                response = ("500", str(e), type(e).__name__)
                self.__mestrics.inc_counter_fail(f"{procedure_name}")
            finally:
                client_socket.sendall( self.__serializer.serialize(response))
                client_socket.close()  #<-------------------------- NEW LINE ----------------------------