**************************** What's New In Python 3.2 **************************** :Author: Raymond Hettinger :Release: |release| :Date: |today| .. $Id$ 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: % Patch 12345 XXX Describe the transmogrify() function added to the socket module. (Contributed by P.Y. Developer.) This saves the maintainer the effort of going through the SVN log when researching a change. This article explains the new features in Python 3.2, compared to 3.1. PEP XXX: Stub ============= Other Language Changes ====================== Some smaller changes made to the core Python language are: * Stub New, Improved, and Deprecated Modules ===================================== * The previously deprecated :func:`string.maketrans` function has been removed in favor of the static methods, :meth:`bytes.maketrans` and :meth:`bytearray.maketrans`. This change solves the confusion around which types were supported by the :mod:`string` module. Now, :class:`str`, :class:`bytes`, and :class:`bytearray` each have their own **maketrans** and **translate** methods with intermediate translation tables of the appropriate type. (Contributed by Georg Brandl; :issue:`5675`.) * The previously deprecated :func:`contextlib.nested` function has been removed in favor of a plain :keyword:`with` statement which can accept multiple context managers. The latter technique is faster (because it is built-in), and it does a better job finalizing multiple context managers when one of them raises an exception. (Contributed by Georg Brandl and Mattias Brändström; `appspot issue 53094 `_.) Optimizations ============= Major performance enhancements have been added: * Stub IDLE ==== * Stub Build and C API Changes ======================= Changes to Python's build process and to the C API include: * Stub Porting to Python 3.2 ===================== This section lists previously described changes and other bugfixes that may require changes to your code: * Stub