More updates to whatsnew

This commit is contained in:
Raymond Hettinger 2010-09-05 01:00:19 +00:00
parent 46462f3fb3
commit 1784ff0249
1 changed files with 28 additions and 2 deletions

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@ -141,7 +141,22 @@ Other Language Changes
Some smaller changes made to the core Python language are:
* Stub
* The :func:`hasattr` function used to catch and suppress any Exception.
Now, it only catches :exc:`AttributeError`. Under the hood, :func:`hasattr`
works by calling :func:`getattr` and throwing away the results. This is
necessary because dynamic attribute creation is possible using
:meth:`__getattribute__` or :meth:`__getattr`. If :func:`hasattr` were to
just scan instance and class dictionaries it would miss the dynmaic methods
and make it difficult to implement proxy objects.
(Discovered by Yury Selivanov and fixed by Benjamin Peterson; :issue:`9666`.)
* The :func:`str` of a float or complex number is now the same as it
:func:`repr`. Previously, the :func:`str` form was shorter but that just
caused confusion and is no longer needed now that we the shortest possible
:func:`repr` is displayed by default.
(Proposed and implemented by Mark Dickinson; :issue:`9337`).
New, Improved, and Deprecated Modules
@ -342,8 +357,19 @@ Build and C API Changes
Changes to Python's build process and to the C API include:
* Stub
* The C functions that access the Unicode Database now accept and
return characters from the full Unicode range, even on narrow unicode builds
(Py_UNICODE_TOLOWER, Py_UNICODE_ISDECIMAL, and others). A visible difference
in Python is that :cfunc:`unicodedata.numeric` now returns the correct value for
large code points, and :func:`repr` may consider more characters as printable.
(Reported by Bupjoe Lee and fixed by Amaury Forgeot D'Arc; :issue:`5127`.)
* Computed gotos are now enabled by default on supported
compilers (which are detected by the configure script). They can still
be disable selectively by specifying ``--without-computed-gotos``.
(:issue:`9203`)
Porting to Python 3.2
=====================