[Python-Dev] [RELEASED] Python 3.3.0

[Guido van Rossum]

Congrats Georg and team! I am incredibly proud of you all for
producing such a great release. As the marketeers would say, "Python
3.3 is the best Python ever!" The feature list is amazing.

--Guido

On Sat, Sep 29, 2012 at 5:18 AM, Georg Brandl <georg at python.org> wrote:
> 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
>
>      http://docs.python.org/3.3/whatsnew/3.3.html
>
> To download Python 3.3.0 visit:
>
>      http://www.python.org/download/releases/3.3.0/
>
> This is a production release, please report any bugs to
>
>       http://bugs.python.org/
>
>
> Enjoy!
>
> --
> Georg Brandl, Release Manager
> georg at python.org
> (on behalf of the entire python-dev team and 3.3's contributors)
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-- 
--Guido van Rossum (python.org/~guido)