Notice: While JavaScript is not essential for this website, your interaction with the content will be limited. Please turn JavaScript on for the full experience.

Python 3.13.0b1

Release Date: May 8, 2024

This is a beta preview of Python 3.13

Python 3.13 is still in development. This release, 3.13.0b1, is the first of four beta release previews of 3.13.

Beta release previews are intended to give the wider community the opportunity to test new features and bug fixes and to prepare their projects to support the new feature release.

We strongly encourage maintainers of third-party Python projects to test with 3.13 during the beta phase and report issues found to the Python bug tracker as soon as possible. While the release is planned to be feature complete entering the beta phase, it is possible that features may be modified or, in rare cases, deleted up until the start of the release candidate phase (Tuesday 2024-07-30). Our goal is to have no ABI changes after beta 4 and as few code changes as possible after 3.13.0rc1, the first release candidate. To achieve that, it will be extremely important to get as much exposure for 3.13 as possible during the beta phase.

Please keep in mind that this is a preview release and its use is not recommended for production environments.

Major new features of the 3.13 series, compared to 3.12

Some of the new major new features and changes in Python 3.13 are:

New features


Removals and new deprecations

  • PEP 594 (Removing dead batteries from the standard library) scheduled removals of many deprecated modules: aifc, audioop, chunk, cgi, cgitb, crypt, imghdr, mailcap, msilib, nis, nntplib, ossaudiodev, pipes, sndhdr, spwd, sunau, telnetlib, uu, xdrlib, lib2to3.
  • Many other removals of deprecated classes, functions and methods in various standard library modules.
  • C API removals and deprecations. (Some removals present in alpha 1 were reverted in alpha 2, as the removals were deemed too disruptive at this time.)
  • New deprecations, most of which are scheduled for removal from Python 3.15 or 3.16.

(Hey, fellow core developer, if a feature you find important is missing from this list, let Thomas know.)

For more details on the changes to Python 3.13, see What's new in Python 3.13. The next pre-release of Python 3.13 will be 3.13.0b2, currently scheduled for 2024-05-28.

More resources

Full Changelog


Version Operating System Description MD5 Sum File Size GPG Sigstore SBOM
Gzipped source tarball Source release 049e47c0e373b408f5ba8b34413d870a 26.3 MB SIG .sigstore SPDX
XZ compressed source tarball Source release e1208b22c67c77de72a5e20025b2fb53 20.1 MB SIG .sigstore SPDX
macOS 64-bit universal2 installer macOS for macOS 10.9 and later e8c9238cc7565a39c7bed451789c13b4 44.0 MB SIG .sigstore
Windows installer (64-bit) Windows Recommended 0679eb9cc871a9d0b9866d0b15175737 25.8 MB SIG .sigstore SPDX
Windows installer (ARM64) Windows Experimental 3515a2f55ad39dd3a1e28203674f264b 25.1 MB SIG .sigstore SPDX
Windows embeddable package (64-bit) Windows 17529ad56f7dac8ec72dd7fb2f0a62cf 11.9 MB SIG .sigstore SPDX
Windows embeddable package (32-bit) Windows 2fc9b7c0bae9f54fed20ddd2bdcfa8cb 10.4 MB SIG .sigstore SPDX
Windows embeddable package (ARM64) Windows 0bd077f7fc2eba1be1e9b85b3f149a22 10.9 MB SIG .sigstore SPDX
Windows installer (32 -bit) Windows 3d64e8fed4ea5116d8c810bdfaa356d5 24.6 MB SIG .sigstore SPDX