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Python 3.12.0a0
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‎Doc/tutorial/interpreter.rst‎

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‎Doc/tutorial/stdlib.rst‎

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>>> import os
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>>> os.getcwd() # Return the current working directory
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'C:\\Python311'
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'C:\\Python312'
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>>> os.chdir('/server/accesslogs') # Change current working directory
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>>> os.system('mkdir today') # Run the command mkdir in the system shell
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‎Doc/tutorial/stdlib2.rst‎

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Traceback (most recent call last):
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File "<stdin>", line 1, in <module>
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d['primary'] # entry was automatically removed
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File "C:/python311/lib/weakref.py", line 46, in __getitem__
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File "C:/python312/lib/weakref.py", line 46, in __getitem__
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o = self.data[key]()
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KeyError: 'primary'
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‎Doc/whatsnew/3.12‎

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

‎Include/patchlevel.h‎

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

‎README.rst‎

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

‎configure.ac‎

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