def append_main_thread(self):
        """create & start main thread

        :return: None
        """
        thread = MainThread(main_queue=self.main_queue,
                            main_spider=self.main_spider,
                            branch_spider=self.branch_spider)
        thread.daemon = True
        thread.start()
def append_main_thread(self):
        """create & start main thread

        :return: None
        """
        thread = MainThread(main_queue=self.main_queue,
                            main_spider=self.main_spider,
                            branch_spider=self.branch_spider)
        thread.daemon = True
        thread.start()
def append_main_thread ( self ) : thread = MainThread ( main_queue = self . main_queue , main_spider = self . main_spider , branch_spider = self . branch_spider ) thread . daemon = True thread . start ( )
create & start main thread

        :return: None
create & start main thread