Merged revisions 77185-77188,77262,77313,77317,77331-77333,77337-77338 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
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r77185 | andrew.kuchling | 2009-12-31 10:17:05 -0600 (Thu, 31 Dec 2009) | 1 line
Add some items
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r77186 | benjamin.peterson | 2009-12-31 10:28:24 -0600 (Thu, 31 Dec 2009) | 1 line
update expat comment
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r77187 | andrew.kuchling | 2009-12-31 10:38:53 -0600 (Thu, 31 Dec 2009) | 1 line
Add various items
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r77188 | benjamin.peterson | 2009-12-31 10:49:37 -0600 (Thu, 31 Dec 2009) | 1 line
add another advancement
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r77262 | andrew.kuchling | 2010-01-02 19:15:21 -0600 (Sat, 02 Jan 2010) | 1 line
Add a few items
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r77313 | benjamin.peterson | 2010-01-04 18:04:19 -0600 (Mon, 04 Jan 2010) | 1 line
add a test about hashing array.array
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r77317 | georg.brandl | 2010-01-05 12:14:52 -0600 (Tue, 05 Jan 2010) | 1 line
Add Stefan.
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r77331 | georg.brandl | 2010-01-06 11:43:06 -0600 (Wed, 06 Jan 2010) | 1 line
Small fixes to test_cmd: fix signature of do_shell, remove duplicate import, add option to run the custom Cmd class.
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r77332 | georg.brandl | 2010-01-06 12:02:16 -0600 (Wed, 06 Jan 2010) | 7 lines
#5991: let completion for the "help" command include help topics.
This also simplifies the Cmd.get_names() method implementation; it was written
at a time where dir() didn't consider base class attributes.
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r77333 | georg.brandl | 2010-01-06 12:26:08 -0600 (Wed, 06 Jan 2010) | 1 line
#5950: document that zip files with comments are unsupported in zipimport.
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r77337 | r.david.murray | 2010-01-06 21:09:08 -0600 (Wed, 06 Jan 2010) | 3 lines
Add -W to the 'basics', 'opt', and 'all' test runs so that we get verbose
information if a failure happens.
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r77338 | r.david.murray | 2010-01-06 22:04:28 -0600 (Wed, 06 Jan 2010) | 2 lines
Fix inadvertent checkin of debug line.
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diff --git a/Doc/whatsnew/2.7.rst b/Doc/whatsnew/2.7.rst
index 2814915..be58df3 100644
--- a/Doc/whatsnew/2.7.rst
+++ b/Doc/whatsnew/2.7.rst
@@ -264,7 +264,9 @@
Windows, and on Unix platforms using the gcc, icc, or suncc
compilers. There may be a small number of platforms where correct
operation of this code cannot be guaranteed, so the code is not
- used on such systems.
+ used on such systems. You can find out which code is being used
+ by checking :data:`sys.float_repr_style`, which will be ``short``
+ if the new code is in use and ``legacy`` if it isn't.
Implemented by Eric Smith and Mark Dickinson, using David Gay's
:file:`dtoa.c` library; :issue:`7117`.
@@ -358,6 +360,11 @@
on the :exc:`IOError` exception when trying to open a directory
on POSIX platforms. (Noted by Jan Kaliszewski; :issue:`4764`.)
+* The Python tokenizer now translates line endings itself, so the
+ :func:`compile` built-in function can now accept code using any
+ line-ending convention. Additionally, it no longer requires that the
+ code end in a newline.
+
* Extra parentheses in function definitions are illegal in Python 3.x,
meaning that you get a syntax error from ``def f((x)): pass``. In
Python3-warning mode, Python 2.7 will now warn about this odd usage.
@@ -433,6 +440,8 @@
Various benchmarks show speedups of between 50% and 150% for long
integer divisions and modulo operations.
(Contributed by Mark Dickinson; :issue:`5512`.)
+ Bitwise operations are also significantly faster (initial patch by
+ Gregory Smith; :issue:`1087418`).
* The implementation of ``%`` checks for the left-side operand being
a Python string and special-cases it; this results in a 1-3%
@@ -444,6 +453,16 @@
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
@@ -453,11 +472,6 @@
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
@@ -602,6 +616,10 @@
XXX link to file:///MacDev/svn.python.org/python-trunk/Doc/build/html/distutils/examples.html#reading-the-metadata
(Contributed by Tarek Ziade; :issue:`7457`.)
+ :file:`setup.py` files will now accept a :option:`--no-user-cfg` switch
+ to skip reading the :file:`~/.pydistutils.cfg` file. (Suggested by
+ by Michael Hoffman, and implemented by Paul Winkler; :issue:`1180`.)
+
* The :class:`Fraction` class now accepts two rational numbers
as arguments to its constructor.
(Implemented by Mark Dickinson; :issue:`5812`.)
@@ -625,14 +643,6 @@
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`.)
@@ -745,6 +755,10 @@
to store data.
(Contributed by Tarek Ziade; :issue:`6693`.)
+* The :mod:`socket` module's :class:`SSL` objects now support the
+ buffer API, which fixed a test suite failure. (Fixed by Antoine Pitrou;
+ :issue:`7133`.)
+
* The :mod:`SocketServer` module's :class:`TCPServer` class now
has a :attr:`disable_nagle_algorithm` class attribute.
The default value is False; if overridden to be True,
@@ -858,6 +872,10 @@
whether the two values evaluate to the same object or not.
(Added by Michael Foord; :issue:`2578`.)
+* :meth:`assertIsInstance` and :meth:`assertNotIsInstance` check whether
+ the resulting object is an instance of a particular class, or of
+ one of a tuple of classes. (Added by Georg Brandl; :issue:`7031`.)
+
* :meth:`assertGreater`, :meth:`assertGreaterEqual`,
:meth:`assertLess`, and :meth:`assertLessEqual` compare
two quantities.
@@ -1025,6 +1043,11 @@
a :ctype:`long`, an *overflow* flag is set and returned to the caller.
(Contributed by Case Van Horsen; :issue:`7528`.)
+* New function: stemming from the rewrite of string-to-float conversion,
+ a new :cfunc:`PyOS_string_to_double` function was added. The old
+ :cfunc:`PyOS_ascii_strtod` and :cfunc:`PyOS_ascii_atof` functions
+ are now deprecated.
+
* New macros: the Python header files now define the following macros:
:cmacro:`Py_ISALNUM`,
:cmacro:`Py_ISALPHA`,
@@ -1067,10 +1090,30 @@
(Fixed by Thomas Wouters; :issue:`1590864`.)
+* The :cfunc:`Py_Finalize` function now calls the internal
+ :func:`threading._shutdown` function; this prevents some exceptions from
+ being raised when an interpreter shuts down.
+ (Patch by Adam Olsen; :issue:`1722344`.)
+
* Global symbols defined by the :mod:`ctypes` module are now prefixed
with ``Py``, or with ``_ctypes``. (Implemented by Thomas
Heller; :issue:`3102`.)
+* New configure option: the :option:`--with-system-expat` switch allows
+ building the :mod:`pyexpat` module to use the system Expat library.
+ (Contributed by Arfrever Frehtes Taifersar Arahesis; :issue:`7609`.)
+
+* New configure option: Compiling Python with the
+ :option:`--with-valgrind` option will now disable the pymalloc
+ allocator, which is difficult for the Valgrind to analyze correctly.
+ 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,
@@ -1083,11 +1126,6 @@
* The build process now supports Subversion 1.7. (Contributed by
Arfrever Frehtes Taifersar Arahesis; :issue:`6094`.)
-* Compiling Python with the :option:`--with-valgrind` option will now
- disable the pymalloc allocator, which is difficult for the Valgrind to
- analyze correctly. Valgrind will therefore be better at detecting
- memory leaks and overruns. (Contributed by James Henstridge; :issue:`2422`.)
-
.. ======================================================================
@@ -1139,12 +1177,14 @@
The :option:`-r` option also reports the seed that was used
(Added by Collin Winter.)
-* The :file:`regrtest.py` script now takes a :option:`-j` switch
- that takes an integer specifying how many tests run in parallel. This
+* Another :file:`regrtest.py` switch is :option:`-j`, which
+ takes an integer specifying how many tests run in parallel. This
allows reducing the total runtime on multi-core machines.
This option is compatible with several other options, including the
:option:`-R` switch which is known to produce long runtimes.
- (Added by Antoine Pitrou, :issue:`6152`.)
+ (Added by Antoine Pitrou, :issue:`6152`.) This can also be used
+ with a new :option:`-F` switch that runs selected tests in a loop
+ until they fail. (Added by Antoine Pitrou; :issue:`7312`.)
.. ======================================================================
@@ -1175,6 +1215,17 @@
nothing when a negative length is requested, as other file-like
objects do. (:issue:`7348`).
+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.
+
+
.. ======================================================================