[arch-dev-public] Fwd: [RELEASED] Python 3.3.0

Stéphane Gaudreault stephane at archlinux.org
Sat Sep 29 12:56:50 EDT 2012

Python 3.3.0 is in [staging]. See release announcement bellow for 
summary of the changes.

I quickly rebuilded pyalpm, python-distribute and python-pyelftools so 
that namcap will works in [staging] with the new python pkg. They still 
needs to be checked to use the correct symlink in their shebangs.



-------- Message original --------
Sujet: 	[RELEASED] Python 3.3.0
Date : 	Sat, 29 Sep 2012 14:18:54 +0200
De : 	Georg Brandl <georg at python.org>
Répondre à : 	python-list at python.org
Pour : 	python-announce at python.org, python-dev at python.org, 
python-list at python.org

On behalf of the Python development team, I'm delighted to announce the
Python 3.3.0 final release.

Python 3.3 includes a range of improvements of the 3.x series, as well
as easier porting between 2.x and 3.x.  Major new features and changes
in the 3.3 release series are:

* PEP 380, syntax for delegating to a subgenerator ("yield from")
* PEP 393, flexible string representation (doing away with the
    distinction between "wide" and "narrow" Unicode builds)
* A C implementation of the "decimal" module, with up to 120x speedup
    for decimal-heavy applications
* The import system (__import__) now based on importlib by default
* The new "lzma" module with LZMA/XZ support
* PEP 397, a Python launcher for Windows
* PEP 405, virtual environment support in core
* PEP 420, namespace package support
* PEP 3151, reworking the OS and IO exception hierarchy
* PEP 3155, qualified name for classes and functions
* PEP 409, suppressing exception context
* PEP 414, explicit Unicode literals to help with porting
* PEP 418, extended platform-independent clocks in the "time" module
* PEP 412, a new key-sharing dictionary implementation that
    significantly saves memory for object-oriented code
* PEP 362, the function-signature object
* The new "faulthandler" module that helps diagnosing crashes
* The new "unittest.mock" module
* The new "ipaddress" module
* The "sys.implementation" attribute
* A policy framework for the email package, with a provisional (see
    PEP 411) policy that adds much improved unicode support for email
    header parsing
* A "collections.ChainMap" class for linking mappings to a single unit
* Wrappers for many more POSIX functions in the "os" and "signal"
    modules, as well as other useful functions such as "sendfile()"
* Hash randomization, introduced in earlier bugfix releases, is now
    switched on by default

In total, almost 500 API items are new or improved in Python 3.3.
For a more extensive list of changes in 3.3.0, see


To download Python 3.3.0 visit:


This is a production release, please report any bugs to



Georg Brandl, Release Manager
georg at python.org
(on behalf of the entire python-dev team and 3.3's contributors)

        Support the Python Software Foundation:

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