globals.py 文件源码

def _try_store_in_file(self, request, response):
        try:
            if (not response.session_id or self._forget
                    or self._unchanged(response)):
                # self.clear_session_cookies()
                self.save_session_id_cookie()
                return False
            if response.session_new or not response.session_file:
                # Tests if the session sub-folder exists, if not, create it
                session_folder = os.path.dirname(response.session_filename)
                if not os.path.exists(session_folder):
                    os.mkdir(session_folder)
                response.session_file = recfile.open(response.session_filename, 'wb')
                portalocker.lock(response.session_file, portalocker.LOCK_EX)
                response.session_locked = True
            if response.session_file:
                session_pickled = response.session_pickled or pickle.dumps(self, pickle.HIGHEST_PROTOCOL)
                response.session_file.write(session_pickled)
                response.session_file.truncate()
        finally:
            self._close(response)

        self.save_session_id_cookie()
        return True