mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-11-02 03:01:58 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 15

Add a few items

Browse source
This commit is contained in:
Andrew M. Kuchling 2010-01-03 01:15:21 +00:00
parent ffd5d886c2
commit 7f8ebdbad5
1 changed files with 20 additions and 13 deletions
Download patch file Download diff file Expand all files Collapse all files

33
Doc/whatsnew/2.7.rst
View file

@ -453,6 +453,16 @@ Several performance enhancements have been added:
faster bytecode. (Patch by Antoine Pitrou, back-ported to 2.7
by Jeffrey Yasskin; :issue:`4715`.)
* Converting an integer or long integer to a decimal string was made
faster by special-casing base 10 instead of using a generalized
conversion function that supports arbitrary bases.
(Patch by Gawain Bolton; :issue:`6713`.)
* The :meth:`rindex`, :meth:`rpartition`, and :meth:`rsplit` methods
of string objects now uses a fast reverse-search algorithm instead of
a character-by-character scan. This is often faster by a factor of 10.
(Added by Florent Xicluna; :issue:`7462`.)
* The :mod:`pickle` and :mod:`cPickle` modules now automatically
intern the strings used for attribute names, reducing memory usage
of the objects resulting from unpickling. (Contributed by Jake
@ -462,11 +472,6 @@ Several performance enhancements have been added:
nearly halving the time required to pickle them.
(Contributed by Collin Winter; :issue:`5670`.)
* Converting an integer or long integer to a decimal string was made
faster by special-casing base 10 instead of using a generalized
conversion function that supports arbitrary bases.
(Patch by Gawain Bolton; :issue:`6713`.)
.. ======================================================================
New and Improved Modules
@ -638,14 +643,6 @@ changes, or look through the Subversion logs for all the details.
recorded in a gzipped file by providing an optional timestamp to
the constructor. (Contributed by Jacques Frechet; :issue:`4272`.)
* The :mod:`hashlib` module was inconsistent about accepting
input as a Unicode object or an object that doesn't support
the buffer protocol. The behavior was different depending on
whether :mod:`hashlib` was using an external OpenSSL library
or its built-in implementations. Python 2.7 makes the
behavior consistent, always rejecting such objects by raising a
:exc:`TypeError`. (Fixed by Gregory P. Smith; :issue:`3745`.)
* The default :class:`HTTPResponse` class used by the :mod:`httplib` module now
supports buffering, resulting in much faster reading of HTTP responses.
(Contributed by Kristjan Valur Jonsson; :issue:`4879`.)
@ -1112,6 +1109,11 @@ Changes to Python's build process and to the C API include:
Valgrind will therefore be better at detecting memory leaks and
overruns. (Contributed by James Henstridge; :issue:`2422`.)
* New configure option: you can now supply no arguments to
:option:`--with-dbmliborder=` in order to build none of the various
DBM modules. (Added by Arfrever Frehtes Taifersar Arahesis;
:issue:`6491`.)
* The :program:`configure` script now checks for floating-point rounding bugs
on certain 32-bit Intel chips and defines a :cmacro:`X87_DOUBLE_ROUNDING`
preprocessor definition. No code currently uses this definition,
@ -1215,10 +1217,15 @@ that may require changes to your code:
For C extensions:
* C extensions that use integer format codes with the ``PyArg_Parse*``
family of functions will now raise a :exc:`TypeError` exception
instead of triggering a :exc:`DeprecationWarning` (:issue:`5080`).
* Use the new :cfunc:`PyOS_string_to_double` function instead of the old
:cfunc:`PyOS_ascii_strtod` and :cfunc:`PyOS_ascii_atof` functions,
which are now deprecated.
.. ======================================================================