3.13.rst

What's New In Python 3.13

Release:	|release|
Date:	|today|

This article explains the new features in Python 3.13, compared to 3.12.

For full details, see the :ref:`changelog <changelog>`.

Note

Prerelease users should be aware that this document is currently in draft form. It will be updated substantially as Python 3.13 moves towards release, so it's worth checking back even after reading earlier versions.

Summary -- Release highlights

New Features

Other Language Changes

New Modules

• None yet.

Improved Modules

Optimizations

Deprecated

Removed

• Remove two :mod:`locale` functions deprecated in Python 3.11:

  • getdefaultlocale(): use :func:`locale.setlocale`, :func:`locale.getpreferredencoding(False) <locale.getpreferredencoding>` and :func:`locale.getlocale` functions instead.
  • resetlocale(): use locale.setlocale(locale.LC_ALL, "") instead.

  (Contributed by Victor Stinner in :gh:`104783`.)

Porting to Python 3.13

This section lists previously described changes and other bugfixes that may require changes to your code.

Build Changes

C API Changes

New Features

Porting to Python 3.13

Deprecated

Removed