Python 3.12.0a0

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Pablo Galindo 2022-05-08 03:40:52 +01:00
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@ -10,13 +10,13 @@ Using the Python Interpreter
Invoking the Interpreter Invoking the Interpreter
======================== ========================
The Python interpreter is usually installed as :file:`/usr/local/bin/python3.11` The Python interpreter is usually installed as :file:`/usr/local/bin/python3.12`
on those machines where it is available; putting :file:`/usr/local/bin` in your on those machines where it is available; putting :file:`/usr/local/bin` in your
Unix shell's search path makes it possible to start it by typing the command: Unix shell's search path makes it possible to start it by typing the command:
.. code-block:: text .. code-block:: text
python3.11 python3.12
to the shell. [#]_ Since the choice of the directory where the interpreter lives to the shell. [#]_ Since the choice of the directory where the interpreter lives
is an installation option, other places are possible; check with your local is an installation option, other places are possible; check with your local
@ -24,7 +24,7 @@ Python guru or system administrator. (E.g., :file:`/usr/local/python` is a
popular alternative location.) popular alternative location.)
On Windows machines where you have installed Python from the :ref:`Microsoft Store On Windows machines where you have installed Python from the :ref:`Microsoft Store
<windows-store>`, the :file:`python3.11` command will be available. If you have <windows-store>`, the :file:`python3.12` command will be available. If you have
the :ref:`py.exe launcher <launcher>` installed, you can use the :file:`py` the :ref:`py.exe launcher <launcher>` installed, you can use the :file:`py`
command. See :ref:`setting-envvars` for other ways to launch Python. command. See :ref:`setting-envvars` for other ways to launch Python.
@ -97,8 +97,8 @@ before printing the first prompt:
.. code-block:: shell-session .. code-block:: shell-session
$ python3.11 $ python3.12
Python 3.11 (default, April 4 2021, 09:25:04) Python 3.12 (default, April 4 2022, 09:25:04)
[GCC 10.2.0] on linux [GCC 10.2.0] on linux
Type "help", "copyright", "credits" or "license" for more information. Type "help", "copyright", "credits" or "license" for more information.
>>> >>>

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@ -15,7 +15,7 @@ operating system::
>>> import os >>> import os
>>> os.getcwd() # Return the current working directory >>> os.getcwd() # Return the current working directory
'C:\\Python311' 'C:\\Python312'
>>> os.chdir('/server/accesslogs') # Change current working directory >>> os.chdir('/server/accesslogs') # Change current working directory
>>> os.system('mkdir today') # Run the command mkdir in the system shell >>> os.system('mkdir today') # Run the command mkdir in the system shell
0 0

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@ -278,7 +278,7 @@ applications include caching objects that are expensive to create::
Traceback (most recent call last): Traceback (most recent call last):
File "<stdin>", line 1, in <module> File "<stdin>", line 1, in <module>
d['primary'] # entry was automatically removed d['primary'] # entry was automatically removed
File "C:/python311/lib/weakref.py", line 46, in __getitem__ File "C:/python312/lib/weakref.py", line 46, in __getitem__
o = self.data[key]() o = self.data[key]()
KeyError: 'primary' KeyError: 'primary'

116
Doc/whatsnew/3.12 Normal file
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@ -0,0 +1,116 @@
****************************
What's New In Python 3.12
****************************
:Release: |release|
:Date: |today|
.. Rules for maintenance:
* Anyone can add text to this document. Do not spend very much time
on the wording of your changes, because your text will probably
get rewritten to some degree.
* The maintainer will go through Misc/NEWS periodically and add
changes; it's therefore more important to add your changes to
Misc/NEWS than to this file.
* This is not a complete list of every single change; completeness
is the purpose of Misc/NEWS. Some changes I consider too small
or esoteric to include. If such a change is added to the text,
I'll just remove it. (This is another reason you shouldn't spend
too much time on writing your addition.)
* If you want to draw your new text to the attention of the
maintainer, add 'XXX' to the beginning of the paragraph or
section.
* It's OK to just add a fragmentary note about a change. For
example: "XXX Describe the transmogrify() function added to the
socket module." The maintainer will research the change and
write the necessary text.
* You can comment out your additions if you like, but it's not
necessary (especially when a final release is some months away).
* Credit the author of a patch or bugfix. Just the name is
sufficient; the e-mail address isn't necessary.
* It's helpful to add the bug/patch number as a comment:
XXX Describe the transmogrify() function added to the socket
module.
(Contributed by P.Y. Developer in :issue:`12345`.)
This saves the maintainer the effort of going through the Mercurial log
when researching a change.
This article explains the new features in Python 3.12, compared to 3.10.
For full details, see the :ref:`changelog <changelog>`.
.. note::
Prerelease users should be aware that this document is currently in draft
form. It will be updated substantially as Python 3.12 moves towards release,
so it's worth checking back even after reading earlier versions.
Summary -- Release highlights
=============================
.. This section singles out the most important changes in Python 3.12.
Brevity is key.
.. PEP-sized items next.
New Features
============
Other Language Changes
======================
New Modules
===========
* None yet.
Improved Modules
================
Optimizations
=============
Build and C API Changes
=======================
* :c:func:`PyFrame_BlockSetup` and :c:func:`PyFrame_BlockPop` have been removed.
Deprecated
==========
Removed
=======
Porting to Python 3.12
======================
This section lists previously described changes and other bugfixes
that may require changes to your code.

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@ -17,13 +17,13 @@
/* Version parsed out into numeric values */ /* Version parsed out into numeric values */
/*--start constants--*/ /*--start constants--*/
#define PY_MAJOR_VERSION 3 #define PY_MAJOR_VERSION 3
#define PY_MINOR_VERSION 11 #define PY_MINOR_VERSION 12
#define PY_MICRO_VERSION 0 #define PY_MICRO_VERSION 0
#define PY_RELEASE_LEVEL PY_RELEASE_LEVEL_BETA #define PY_RELEASE_LEVEL PY_RELEASE_LEVEL_ALPHA
#define PY_RELEASE_SERIAL 1 #define PY_RELEASE_SERIAL 0
/* Version as a string */ /* Version as a string */
#define PY_VERSION "3.11.0b1" #define PY_VERSION "3.12.0a0"
/*--end constants--*/ /*--end constants--*/
/* Version as a single 4-byte hex number, e.g. 0x010502B2 == 1.5.2b2. /* Version as a single 4-byte hex number, e.g. 0x010502B2 == 1.5.2b2.

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@ -1,5 +1,5 @@
This is Python version 3.11.0 beta 1 This is Python version 3.12.0 alpha 0
==================================== =====================================
.. image:: https://github.com/python/cpython/workflows/Tests/badge.svg .. image:: https://github.com/python/cpython/workflows/Tests/badge.svg
:alt: CPython build status on GitHub Actions :alt: CPython build status on GitHub Actions
@ -133,7 +133,7 @@ What's New
---------- ----------
We have a comprehensive overview of the changes in the `What's New in Python We have a comprehensive overview of the changes in the `What's New in Python
3.11 <https://docs.python.org/3.11/whatsnew/3.11.html>`_ document. For a more 3.12 <https://docs.python.org/3.12/whatsnew/3.12.html>`_ document. For a more
detailed change log, read `Misc/NEWS detailed change log, read `Misc/NEWS
<https://github.com/python/cpython/blob/main/Misc/NEWS.d>`_, but a full <https://github.com/python/cpython/blob/main/Misc/NEWS.d>`_, but a full
accounting of changes can only be gleaned from the `commit history accounting of changes can only be gleaned from the `commit history
@ -146,7 +146,7 @@ entitled "Installing multiple versions".
Documentation Documentation
------------- -------------
`Documentation for Python 3.11 <https://docs.python.org/3.11/>`_ is online, `Documentation for Python 3.12 <https://docs.python.org/3.12/>`_ is online,
updated daily. updated daily.
It can also be downloaded in many formats for faster access. The documentation It can also be downloaded in many formats for faster access. The documentation
@ -206,8 +206,8 @@ intend to install multiple versions using the same prefix you must decide which
version (if any) is your "primary" version. Install that version using ``make version (if any) is your "primary" version. Install that version using ``make
install``. Install all other versions using ``make altinstall``. install``. Install all other versions using ``make altinstall``.
For example, if you want to install Python 2.7, 3.6, and 3.11 with 3.11 being the For example, if you want to install Python 2.7, 3.6, and 3.12 with 3.12 being the
primary version, you would execute ``make install`` in your 3.11 build directory primary version, you would execute ``make install`` in your 3.12 build directory
and ``make altinstall`` in the others. and ``make altinstall`` in the others.
@ -238,7 +238,7 @@ All current PEPs, as well as guidelines for submitting a new PEP, are listed at
Release Schedule Release Schedule
---------------- ----------------
See :pep:`664` for Python 3.11 release details. See :pep:`664` for Python 3.12 release details.
Copyright and License Information Copyright and License Information

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@ -6,7 +6,7 @@ dnl Python's configure script requires autoconf 2.69 and autoconf-archive.
dnl dnl
# Set VERSION so we only need to edit in one place (i.e., here) # Set VERSION so we only need to edit in one place (i.e., here)
m4_define(PYTHON_VERSION, 3.11) m4_define(PYTHON_VERSION, 3.12)
AC_PREREQ([2.69]) AC_PREREQ([2.69])