Improving property to accept abstract methods

Doc/whatsnew/3.3.rst

 ****************************
   What's New In Python 3.3
 ****************************
 
 :Author: Raymond Hettinger
 :Release: |release|
 :Date: |today|
 
 .. Rules for maintenance:
 
@@ skipping 338 matching lines @@
  * The :mod:`curses` module has a new :meth:`~curses.unget_wch` function to
    push a wide character so the next :meth:`~curses.window.get_wch` will return
    it
 
 (Contributed by Iñigo Serna in :issue:`6755`)
 
 abc
 ---
 
 Improved support for abstract base classes containing descriptors composed with
-abstract methods.
+abstract methods. The recommended approach to declaring abstract descriptors is
+now to provide :attr:`__isabstractmethod__` as a dynamically updated
+property. The built-in descriptors have been updated accordingly.
 

[Nick Coghlan, 2011/12/06 09:14:01]

Add another sentence: "The recommended approach to declaring abstract
descriptors is now to provide :attr:`__isabstractmethod__` as a dynamically
updated property. The built-in descriptors have been updated accordingly.

   * :class:`abc.abstractproperty` has been deprecated, use :class:`property`
     with :func:`abc.abstractmethod` instead.
   * :class:`abc.abstractclassmethod` has been deprecated, use
     :class:`classmethod` with :func:`abc.abstractmethod` instead.
   * :class:`abc.abstractstaticmethod` has been deprecated, use
     :class:`property` with :func:`abc.abstractmethod` instead.
 
+(Contributed by Darren Dale in :issue:`11610`)
 

[Nick Coghlan, 2011/12/06 09:14:01]

Add "(Contributed by Darren Dale in :issue:`11610`)"

 faulthandler
 ------------
 
 New module: :mod:`faulthandler`.
 
  * :envvar:`PYTHONFAULTHANDLER`
  * :option:`-X` ``faulthandler``
 
 time
 ----
@@ skipping 465 matching lines @@
 ------------
 
 .. Issue #11591: When :program:`python` was started with :option:`-S`,
    ``import site`` will not add site-specific paths to the module search
    paths.  In previous versions, it did.  See changeset for doc changes in
    various files.  Contributed by Carl Meyer with editions by Éric Araujo.
 
 .. Issue #10998: the -Q command-line flag and related artifacts have been
    removed.  Code checking sys.flags.division_warning will need updating.
    Contributed by Éric Araujo.