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Python 3.12.1

Release Date: Dec. 8, 2023

This is the first maintenance release of Python 3.12

Python 3.12 is the newest major release of the Python programming language, and it contains many new features and optimizations. 3.12.1 is the latest maintenance release, containing more than 400 bugfixes, build improvements and documentation changes since 3.12.0.

Major new features of the 3.12 series, compared to 3.11

New features

Type annotations


  • The deprecated wstr and wstr_length members of the C implementation of unicode objects were removed, per PEP 623.
  • In the unittest module, a number of long deprecated methods and classes were removed. (They had been deprecated since Python 3.1 or 3.2).
  • The deprecated smtpd and distutils modules have been removed (see PEP 594 and PEP 632. The setuptools package continues to provide the distutils module.
  • A number of other old, broken and deprecated functions, classes and methods have been removed.
  • Invalid backslash escape sequences in strings now warn with SyntaxWarning instead of DeprecationWarning, making them more visible. (They will become syntax errors in the future.)
  • The internal representation of integers has changed in preparation for performance enhancements. (This should not affect most users as it is an internal detail, but it may cause problems for Cython-generated code.)

For more details on the changes to Python 3.12, see What's new in Python 3.12.

More resources

Full Changelog


Version Operating System Description MD5 Sum File Size GPG Sigstore
Gzipped source tarball Source release 51c5c22dcbc698483734dff5c8028606 25.8 MB SIG .sigstore
XZ compressed source tarball Source release 50f827c800483776c8ef86e6a53831fa 19.6 MB SIG .sigstore
macOS 64-bit universal2 installer macOS for macOS 10.9 and later eae2d617cbd978a4a6c167924b287572 43.3 MB SIG .sigstore
Windows installer (64-bit) Windows Recommended 3e3b6550e58772d324f7519bfa8066dc 25.4 MB SIG .sigstore
Windows installer (ARM64) Windows Experimental 25fb741f175dc98d5630520f2df931ec 24.6 MB SIG .sigstore
Windows embeddable package (64-bit) Windows 019788d34af2c60a7be45bf8273e361f 10.5 MB SIG .sigstore
Windows embeddable package (32-bit) Windows acc28815c74facc402469e917c8f8433 9.4 MB SIG .sigstore
Windows embeddable package (ARM64) Windows 18058aa3c8ccbf3e8fee53386d38c711 9.8 MB SIG .sigstore
Windows installer (32 -bit) Windows 37a89a09138888e6331ec279d68fea8e 24.1 MB SIG .sigstore