NZPUG Mtg: Making Python faster, and "Dependency Inversion"

[dn via Python-list]

Virtual meeting: Wednesday 6 December, 1815 for 1830 NZDT/UTC+13
Book at https://www.meetup.com/nzpug-auckland/events/295433876/


1 Making Python faster - using type hints

Tushar will lead us through:

A brief history of type hints
Using type checkers to verify your type hints
Compiling type checked Python to make it faster
Some examples of libraries and the speedups they get from type hints

We'll be looking at mypy/mypyc.

Audience Level: intermediate, ie understand Python constructs, 
functions, control flow, etc.


Tushar has been a long term Python developer, OSS contributor, author 
and speaker. He has been working with static analysis and type checkers 
for the past 3 years, and has contributed to various PSF-projects such 
as black and mypy.



2 SOLID's Dependency Inversion Principle

Olaf will complete the current Software Craftsmanship series on the 
SOLID Principles with a session on the Dependency Inversion Principle. 
This one is particularly fascinating, because at first-glance the 
inversion seems to be asking us to do things backwards. With 
understanding, we realise that it is an impressive device enabling us to 
focus on what is needed by the 'layer' of more valuable components, 
rather than the lower-level, eg UIs and external interfaces (need 
refresher? see https://www.bmc.com/blogs/solid-design-principles/)


Audience Level: advanced, ie understand programming constructs, 
patterns, principles, etc.


Olaf needs no introduction having generously brought us the earlier 
sessions in his "Software Craftsmanship" series over the last two years. 
Let's complete this exercise in dogged-persistence and round things off 
neatly - if you remember, this talk was originally scheduled last month, 
but technical-gremlins got in the way! Also, please tell us what topics 
you'd like to cover at this skill-level in future...



Please come, and come with a collegial frame-of-mind. Questions and 
conversation will be the order of the day. If you are more confident in 
Python, your constructive advice, suggestions, and alternate approaches 
will be valued ...


--
Regards =dn
--
https://mail.python.org/mailman/listinfo/python-list

Python 3.13.0 alpha 2 now available.

[Thomas Wouters via Python-list]

Well, well, well, it’s time for Python 3.13.0 alpha 2!
https://www.python.org/downloads/release/python-3130a2/

*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

   - 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 chilly Amsterdam,

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

-- 
Thomas Wouters 
-- 
https://mail.python.org/mailman/listinfo/python-list