[Python-Dev] [RELEASED] Python 3.3.0 beta 1 (original) (raw)

Calvin Spealman ironfroggy at gmail.com
Wed Jun 27 11:58:51 CEST 2012

All,

Congradulations. This is a big one!

On Wed, Jun 27, 2012 at 2:10 AM, Georg Brandl <georg at python.org> wrote:

On behalf of the Python development team, I'm happy to announce the first beta release of Python 3.3.0.

This is a preview release, and its use is not recommended in production settings. 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 80x 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/ Please consider trying Python 3.3.0 with your code and reporting any bugs you may notice to:  http://bugs.python.org/

Enjoy! (*) Please note that this document is usually finalized late in the release  cycle and therefore may have stubs and missing entries at this point. -- 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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