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Python 3.13.0a2

Release Date: Nov. 21, 2023

This is an early developer preview of Python 3.13

Major new features of the 3.13 series, compared to 3.12

Python 3.13 is still in development. This release, 3.13.0a2 is the second of seven planned alpha releases.

Alpha releases are intended to make it easier to test the current state of new features and bug fixes and to test the release process.

During the alpha phase, features may be added up until the start of the beta phase (2024-05-07) and, if necessary, may be modified or deleted up until the release candidate phase (2024-07-30). Please keep in mind that this is a preview release and its use is not recommended for production environments.

Many new features for Python 3.13 are still being planned and written. The most notable change so far:

  • 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.
  • New deprecations, most of which are scheduled for removal from Python 3.15 or 3.16.
  • C API removals and deprecations. (Some removals present in alpha 1 have been reverted in alpha 2, as the removals were deemed too disruptive at this time.)

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

The next pre-release of Python 3.13 will be 3.13.0a3, currently scheduled for 2023-12-19.

More resources


Version Operating System Description MD5 Sum File Size GPG Sigstore
Gzipped source tarball Source release 228350fec0b8ef52274aa1208281b5f8 25.4 MB SIG .sigstore
XZ compressed source tarball Source release 8ca56cbbe6237d446eb40f42297f2eb8 19.3 MB SIG .sigstore
macOS 64-bit universal2 installer macOS for macOS 10.9 and later 8cd1cacd7d9ac0452f3393dbee2f9c93 42.7 MB SIG .sigstore
Windows installer (64-bit) Windows Recommended 4004c8f6cd2e627210dabcafdfc3d5cf 25.5 MB SIG .sigstore
Windows installer (ARM64) Windows Experimental 8348f07e3a7e7c6448580b6bfdeb0f8c 24.5 MB SIG .sigstore
Windows embeddable package (64-bit) Windows 8edb8f50ba1d455a95fe63f6fc939637 10.2 MB SIG .sigstore
Windows embeddable package (32-bit) Windows 04a141978ddd3b58c2dee74bbd8f0b5a 9.1 MB SIG .sigstore
Windows embeddable package (ARM64) Windows 8ce002f42d610875465746be5cbfa217 9.3 MB SIG .sigstore
Windows installer (32 -bit) Windows c2fad10ca6e56e4d4d1e48ca1b615d48 24.2 MB SIG .sigstore