Dataclasses, introduced in Python 3.7 (and backported to Python 3.6), provide ... implemented as a Python dataclass: from dataclasses import dataclass @dataclass class Book: '''Object for tracking ...

import sys try: GIL_ENABLED = sys._is_gil_enabled() except AttributeError: GIL_ENABLED = True sys._is_gil_enabled(), added in Python 3.13, reports whether or not the GIL is enabled at runtime.