Python 3.13.0 alpha 1 is now available

 

It’s not a very exciting release (yet), but it’s time for the first alpha of Python 3.13 anyway!

https://www.python.org/downloads/release/python-3130a1/

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, 3.13.0a1 is the first 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 are 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.)

The next pre-release of Python 3.13 will be 3.13.0a2, currently scheduled for 2023-11-21.

 

More resources

• Online Documentation
• PEP 719, 3.13 Release Schedule
• Report bugs at https://github.com/python/cpython/issues.
• Help fund Python and its community.
  

 

Enjoy the new releases

Thanks to all of the many volunteers who help make Python Development and these releases possible! Please consider supporting our efforts by volunteering yourself or through organization contributions to the Python Software Foundation.

Regards from lovely Czechia,

Your release team,
Thomas Wouters
Ned Deily
Steve Dower
Łukasz Langa

Python 3.11.6 is now available

  

This is the sixth maintenance release of Python 3.11

Python 3.11.6 is the newest major release of the Python programming language, and it contains many new features and optimizations. Get it here:

https://www.python.org/downloads/release/python-3116/

Major new features of the 3.11 series, compared to 3.10

Among the new major new features and changes so far:

• PEP 657 – Include Fine-Grained Error Locations in Tracebacks
• PEP 654 – Exception Groups and except*
• PEP 673 – Self Type
• PEP 646 – Variadic Generics
• PEP 680 – tomllib: Support for Parsing TOML in the Standard Library
• PEP 675 – Arbitrary Literal String Type
• PEP 655 – Marking individual TypedDict items as required or potentially-missing
• bpo-46752 – Introduce task groups to asyncio
• PEP 681 – Data Class Transforms
• bpo-433030– Atomic grouping ((?>…)) and possessive quantifiers (*+, ++, ?+, {m,n}+) are now supported in regular expressions.
• The Faster Cpython Project is already yielding some exciting results. Python 3.11 is up to 10-60% faster than Python 3.10. On average, we measured a 1.22x speedup on the standard benchmark suite. See Faster CPython for details.

More resources

• Online Documentation

• PEP 664, 3.11 Release Schedule
• Report bugs at https://bugs.python.org.

• Help fund Python and its community.

And now for something completely different

A g-factor (also called g value) is a dimensionless quantity that characterizes the magnetic moment and angular momentum of an atom, a particle or the nucleus. It is essentially a proportionality constant that relates the different observed magnetic moments μ of a particle to their angular momentum quantum numbers and a unit of magnetic moment (to make it dimensionless), usually the Bohr magneton or nuclear magneton. Its value is proportional to the gyromagnetic ratio.

We hope you enjoy the new releases!

Thanks to all of the many volunteers who help make Python Development and these releases possible! Please consider supporting our efforts by volunteering yourself or through organization contributions to the Python Software Foundation.

https://www.python.org/psf/

Your friendly release team,
Ned Deily @nad 
Steve Dower @steve.dower 
Pablo Galindo Salgado @pablogsal

Python 3.12.0 (final) now available

 Finally, it’s final! The final release of Python 3.12.0 (final) is here!

https://www.python.org/downloads/release/python-3120/

 

This is the stable release of Python 3.12.0

Python 3.12.0 is the newest major release of the Python programming language, and it contains many new features and optimizations.

 

Major new features of the 3.12 series, compared to 3.11

 

New features

• More flexible f-string parsing , allowing many things previously disallowed (PEP 701).
• Support for the buffer protocol in Python code (PEP 688).
• A new debugging/profiling API (PEP 669).
• Support for isolated subinterpreters with separate Global Interpreter Locks (PEP 684).
• Even more improved error messages. More exceptions potentially caused by typos now make suggestions to the user.
• Support for the Linux perf profiler to report Python function names in traces.
• Many large and small performance improvements (like PEP 709 and support for the BOLT binary optimizer), delivering an estimated 5% overall performance improvement.

 

Type annotations

• New type annotation syntax for generic classes (PEP 695).
• New override decorator for methods (PEP 698).

 

Deprecations

• 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

• Online Documentation.
• PEP 693, the Python 3.12 Release Schedule.
• Report bugs via GitHub Issues.
• Help fund Python and its community.

 

And now for something completely different

They have no need of our help
So do not tell me
These haggard faces could belong to you or me
Should life have dealt a different hand
We need to see them for who they really are
Chancers and scroungers
Layabouts and loungers
With bombs up their sleeves
Cut-throats and thieves
They are not
Welcome here
We should make them
Go back to where they came from
They cannot
Share our food
Share our homes
Share our countries
Instead let us
Build a wall to keep them out
It is not okay to say
These are people just like us
A place should only belong to those who are born there
Do not be so stupid to think that
The world can be looked at another way

(now read from bottom to top)

Refugees, by Brian Bilston.

 

We hope you enjoy the new releases!

Thanks to all of the many volunteers who help make Python Development and these releases possible! Please consider supporting our efforts by volunteering yourself or through organization contributions to the Python Software Foundation.

Your release team,
Thomas Wouters
Ned Deily
Steve Dower
Łukasz Langa