recipe-577638.py 文件源码

def get_settings(self):
        # Try opening and loading the settings from file.
        filename = os.path.join(self.__path, self.FILENAME)
        try:
            with open(filename, 'rb') as file:
                settings = pickle.load(file)
            # Test the pickle and check each setting inside it.
            assert isinstance(settings, dict)
            key_list = list(self.DEFAULT)
            for key in settings:
                assert isinstance(key, str)
                assert key in self.DEFAULT
                key_list.remove(key)
            # Add new settings as needed (when new ones are created).
            for key in key_list:
                settings[key] = self.DEFAULT[key]
            # Return old settings, or on error, the default settings.
            return False, settings
        except (IOError, pickle.UnpicklingError, AssertionError):
            return True, self.DEFAULT