handlers.py 文件源码

def _load_stored_result_from_file(self, default=None):
        # First, let's attempt to load the existing results json file
        try:
            with open(self._results_file_path) as fp:
                file_data = fp.read()
        except IOError:
            return default

        # Now attempt to deserialize the file... if that fails, save a backup of the file
        try:
            return json.loads(file_data)
        except json.JSONDecodeError as e:
            backup_file_name = "corrupted.{}.{}".format(
                str(uuid.uuid4())[:8],
                self._results_file_name,
            )
            logger.error(
                "Unable to parse file {}: {}, renaming to {} and creating new file".format(
                    self._results_file_path, e, backup_file_name,
                )
            )
            dst = "{}/{}".format(self._results_directory, backup_file_name)
            os.rename(self._results_file_path, dst)

        return default