[Python-announce] Python 3.12.0 alpha 1 released.

[Thomas Wouters]

As Pablo released Python 3.11.0 final earlier today, now it's my turn to
release Python 3.12.0 alpha 1.


*This is an early developer preview of Python 3.12*
Major new features of the 3.12 series, compared to 3.11

Python 3.12 is still in development. This release, 3.12.0a1 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 (2023-05-08) and, if necessary, may be modified or deleted up
until the release candidate phase (2023-07-31). Please keep in mind that
this is a preview release and its use is *not *recommended for production
environments.

Many new features for Python 3.12 are still being planned and written.
Among the new major new features and changes so far:

   - 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` module has been removed.
   - A number of other old, broken and deprecated functions, classes and
   methods have been removed.
   - (Hey, **fellow core developer,** if a feature you find important
   is missing from this list, let Thomas know .)

The next pre-release of Python 3.12 will be 3.12.0a2, currently scheduled
for 2022-11-14.

More resources

   - Online Documentation 
   - PEP 693 , the 3.12 Release
   Schedule
   - Report bugs at https://github.com/python/cpython/issues.
   - Help fund Python and its community at
   https://www.python.org/psf/donations/.


And now for something completely different

This is Not the Poem that I Had Hoped to Write


This is not the poem that I had hoped to write
when I sat at my desk and the page was white.
You see, there were other words that I’d had in mind,
yet this is what I leave behind.

I thought it was a poem to eradicate war;
one of such power, it would heal all the sores
of a world torn apart by conflict and schism.
But it isn’t.

Lovers, I’d imagined, would quote from it daily,
Mothers would sing it to soothe crying babies.
And whole generations would be given new hope.
Nope.

I had grand aspirations. Believe me, I tried.
Humanity examined with lessons applied.
But the right words escaped me; so often they do.
Have these in lieu.

Brian Bilston 

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 dusky California,

Your release team,
Thomas Wouters @Yhg1s
Ned Deily @nad
Steve Dower @steve.dower

-- 
Thomas Wouters 
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[Python-announce] [RELEASE] Python 3.11 final (3.11.0) is available

[Pablo Galindo Salgado]

Python 3.11 is finally released. In the CPython release team, we have put a
lot of effort into making 3.11 the best version of Python possible. Better
tracebacks, faster Python, exception groups and except*, typing
improvements and much more. Get it here:

https://www.python.org/downloads/release/python-3110/

## This is the stable release of Python 3.11.0

Python 3.11.0 is the newest major release of the Python programming
language, and it contains many new features and optimizations.

# Major new features of the 3.11 series, compared to 3.10

Some of the new major new features and changes in Python 3.11 are:

## General changes

* [PEP 657](https://www.python.org/dev/peps/pep-0657/) -- Include
Fine-Grained Error Locations in Tracebacks
* [PEP 654](https://www.python.org/dev/peps/pep-0654/) -- Exception Groups
and `except*`
* [PEP 680](https://www.python.org/dev/peps/pep-0680/) -- tomllib: Support
for Parsing TOML in the Standard Library
* [gh-90908](https://github.com/python/cpython/issues/90908) -- Introduce
task groups to asyncio
* [gh-34627](https://github.com/python/cpython/issues/34627/) -- Atomic
grouping (`(?>...)`) and possessive quantifiers (`*+, ++, ?+, {m,n}+`) are
now supported in regular expressions.
* The [Faster CPython Project](https://github.com/faster-cpython/) 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](
https://docs.python.org/3.11/whatsnew/3.11.html#faster-cpython) for details.

## Typing and typing language changes

* [PEP 673](https://www.python.org/dev/peps/pep-0673/) --  Self Type
* [PEP 646](https://www.python.org/dev/peps/pep-0646/) -- Variadic Generics
* [PEP 675](https://www.python.org/dev/peps/pep-0675/) -- Arbitrary Literal
String Type
* [PEP 655](https://www.python.org/dev/peps/pep-0655/) -- Marking
individual TypedDict items as required or potentially-missing
* [PEP 681](https://www.python.org/dev/peps/pep-0681/) -- Data Class
Transforms

# More resources

* [Online Documentation](https://docs.python.org/3.11/)
* [PEP 664](https://www.python.org/dev/peps/pep-0664/), 3.11 Release
Schedule
* Report bugs at [
https://github.com/python/cpython/issues](https://github.com/python/cpython/issues)
.
* [Help fund Python and its community](/psf/donations/).

# And now for something completely different

When a spherical non-rotating body of a critical radius collapses under its
own gravitation under general relativity, theory suggests it will collapse
to a single point. This is not the case with a rotating black hole (a Kerr
black hole). With a fluid rotating body, its distribution of mass is not
spherical (it shows an equatorial bulge), and it has angular momentum.
Since a point cannot support rotation or angular momentum in classical
physics (general relativity being a classical theory), the minimal shape of
the singularity that can support these properties is instead a ring with
zero thickness but non-zero radius, and this is referred to as a
ringularity or Kerr singularity.

This kind of singularity has the following peculiar property. The spacetime
allows a geodesic curve (describing the movement of observers and photons
in spacetime) to pass through the center of this ring singularity. The
region beyond permits closed time-like curves. Since the trajectory of
observers and particles in general relativity are described by time-like
curves, it is possible for observers in this region to return to their
past. This interior solution is not likely to be physical and is considered
a purely mathematical artefact.

There are some other interesting free-fall trajectories. For example, there
is a point in the axis of symmetry that has the property that if an
observer is below this point, the pull from the singularity will force the
observer to pass through the middle of the ring singularity to the region
with closed time-like curves and it will experience repulsive gravity that
will push it back to the original region, but then it will experience the
pull from the singularity again and will repeat this process forever. This
is, of course, only if the extreme gravity doesn’t destroy the observer
first.

# 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/

If you have any questions, please reach out to me or another member of the
release team :)

Your friendly release team,

Ned Deily @nad https://discuss.python.org/u/nad
Steve Dower @steve.dower https://discuss.python.org/u/steve.dower
Pablo Galindo Salgado @pablogsal https://discuss.python.org/u/pablogsal
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[Python-announce] PyCon Tanzania 2022 - Call for Speakers, Presentations, Hackathons and Workshops - 1st Reminder

[Noah .]

Dear Python Community,

We hope that you are all well to that end and that you have been busy
working on various awesome Python Code Bases. It's almost that time of the
year and we would like to engage the community for the Fourth ever Python
Conference which is planned to take place from* 4th - 7th December 2022** in
the beautiful and magnificent Island of ZANZIBAR.*

*PyCon Tanzania*, is seeking keynote speakers and instructors to contribute
to the Python Conference Program! *We are looking for speakers who would:*

- Offer a Keynote speaker on an appropriate technical topic;
- Offer a Technical Tutorial or Hackathon on an appropriate Python
topic;

*Topics must be relevant to the Python Language and Open Source Software:*

   - Python in Education
   - Python in Statistical Research
   - Python in Scientific Research
   - Python Machine Learning
   - Python & Artificial Intelligence
   - Open Source Software
   - Python  & Cyber Security
   - Python Gaming Development
   - Cloud Computing & Virtualisation
   - Ideas on improving diversity and inclusiveness
   - Python Functional programming etc
   - Python and IoT

*SUBMIT YOUR PRESENTATION / WORKSHOP/ HACKATHON / TUTORIAL BEFORE 05th Nov
2022 **To*:  *sp...@pycon.or.tz  *
Regards,
PyCon Tanzania 2022
Program Committee
http://www.pycon.or.tz/
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