diff options
| -rw-r--r-- | Doc/whatsnew/3.3.rst | 49 | ||||
| -rw-r--r-- | Misc/NEWS | 4 |
2 files changed, 43 insertions, 10 deletions
diff --git a/Doc/whatsnew/3.3.rst b/Doc/whatsnew/3.3.rst index 11d340b..3eeb954 100644 --- a/Doc/whatsnew/3.3.rst +++ b/Doc/whatsnew/3.3.rst @@ -574,6 +574,26 @@ versions. The ``unicode_internal`` codec has been deprecated. + +collections +----------- + +Addition of a new :class:`~collections.ChainMap` class to allow treating a +number of mappings as a single unit. + +(Written by Raymond Hettinger for :issue:`11089`, made public in +:issue:`11297`) + +The abstract base classes have been moved in a new :mod:`collections.abc` +module, to better differentiate between the abstract and the concrete +collections classes. Aliases for ABCs are still present in the +:mod:`collections` module to preserve existing imports. + +(:issue:`11085`) + +.. XXX addition of __slots__ to ABCs not recorded here: internal detail + + crypt ----- @@ -867,11 +887,12 @@ packaging --------- :mod:`distutils` has undergone additions and refactoring under a new name, -:mod:`packaging`, to allow developers to break backward compatibility. +:mod:`packaging`, to allow developers to make far-reaching changes without +being constrained by backward compatibility. :mod:`distutils` is still provided in the standard library, but users are encouraged to transition to :mod:`packaging`. For older versions of Python, a -backport compatible with 2.4+ and 3.1+ will be made available on PyPI under the -name :mod:`distutils2`. +backport compatible with Python 2.5 and newer and 3.2 is available on PyPI +under the name `distutils2 <http://pypi.python.org/pypi/Distutils2>`_. .. TODO add examples and howto to the packaging docs and link to them @@ -1059,12 +1080,24 @@ should be used. For example, this will send a ``'HEAD'`` request:: (:issue:`1673007`) +webbrowser +---------- + +The :mod:`webbrowser` module supports more browsers: Google Chrome (named +:program:`chrome`, :program:`chromium`, :program:`chrome-browser` or +:program:`chromium-browser` depending on the version and operating system) as +well as the the generic launchers :program:`xdg-open` from the FreeDesktop.org +project and :program:`gvfs-open` which is the default URI handler for GNOME 3. + +(:issue:`13620` and :issue:`14493`) + + Optimizations ============= Major performance enhancements have been added: -* Thanks to the :pep:`393`, some operations on Unicode strings has been optimized: +* Thanks to :pep:`393`, some operations on Unicode strings have been optimized: * the memory footprint is divided by 2 to 4 depending on the text * encode an ASCII string to UTF-8 doesn't need to encode characters anymore, @@ -1083,7 +1116,7 @@ Changes to Python's build process and to the C API include: * :c:func:`PyMemoryView_FromMemory` -* The :pep:`393` added new Unicode types, macros and functions: +* :pep:`393` added new Unicode types, macros and functions: * High-level API: @@ -1126,7 +1159,7 @@ are no longer supported due to maintenance burden. Deprecated Python modules, functions and methods ------------------------------------------------ -* The :mod:`distutils` modules has been deprecated. Use the new +* The :mod:`distutils` module has been deprecated. Use the new :mod:`packaging` module instead. * The ``unicode_internal`` codec has been deprecated because of the :pep:`393`, use UTF-8, UTF-16 (``utf-16-le`` or ``utf-16-be``), or UTF-32 @@ -1145,7 +1178,7 @@ Deprecated Python modules, functions and methods Deprecated functions and types of the C API ------------------------------------------- -The :c:type:`Py_UNICODE` has been deprecated by the :pep:`393` and will be +The :c:type:`Py_UNICODE` has been deprecated by :pep:`393` and will be removed in Python 4. All functions using this type are deprecated: Unicode functions and methods using :c:type:`Py_UNICODE` and @@ -1247,7 +1280,7 @@ Porting C code functions using this type are deprecated (but will stay available for at least five years). If you were using low-level Unicode APIs to construct and access unicode objects and you want to benefit of the - memory footprint reduction provided by the PEP 393, you have to convert + memory footprint reduction provided by PEP 393, you have to convert your code to the new :doc:`Unicode API <../c-api/unicode>`. However, if you only have been using high-level functions such as @@ -29,7 +29,7 @@ Library a multiprocessing Client or Listener with an AF_PIPE type address under non-Windows platforms. Patch by Popa Claudiu. -- Issue #14493: Use gvfs-open/xdg-open in Lib/webbrowser.py. +- Issue #14493: Use gvfs-open or xdg-open in webbrowser. What's New in Python 3.3.0 Alpha 2? @@ -1007,7 +1007,7 @@ Library - Issue #11006: Don't issue low level warning in subprocess when pipe2() fails. -- Issue #13620: Support for Chrome browser in webbrowser.py Patch contributed +- Issue #13620: Support for Chrome browser in webbrowser. Patch contributed by Arnaud Calmettes. - Issue #11829: Fix code execution holes in inspect.getattr_static for |