def save(self):
        tmp_path = self.path + '.tmp'
        with open(tmp_path, 'w') as f:
            f.write(json.dumps(self.body_labels.items()))
        os.rename(tmp_path, self.path)
def _format_traceback(cls, traceback_lines, should_print_backtrace):
        if should_print_backtrace:
            traceback_string = "\n{}".format("".join(traceback_lines))
        else:
            traceback_string = " {}".format(cls._traceback_omitted_default_text)
        return traceback_string