cpython/Doc/library/sndhdr.rst

:mod:`!sndhdr` --- Determine type of sound file
===============================================

.. module:: sndhdr
   :synopsis: Removed in 3.13.
   :deprecated:

.. deprecated-removed:: 3.11 3.13

This module is no longer part of the Python standard library.
It was :ref:`removed in Python 3.13 <whatsnew313-pep594>` after
being deprecated in Python 3.11.  The removal was decided in :pep:`594`.

Possible replacements are third-party modules from PyPI:
:pypi:`filetype`, :pypi:`puremagic`, or :pypi:`python-magic`.
These are not supported or maintained by the Python core team.

The last version of Python that provided the :mod:`!sndhdr` module was
`Python 3.12 <https://docs.python.org/3.12/library/sndhdr.html>`_.