:Release: |release|
:Date: |today|
-.. Fix accents on Kristjan Valur Jonsson, Fuerstenau, Tarek Ziade.
+.. Fix accents on Kristjan Valur Jonsson, Fuerstenau
.. $Id$
Rules for maintenance:
release of 2.7 is currently scheduled for June 2010; the detailed
schedule is described in :pep:`373`.
+Python 2.7 is planned to be the last major release in the 2.x series.
+Though more major releases have not been absolutely ruled out, it's
+likely that the 2.7 release will have an extended period of
+maintenance compared to earlier 2.x versions.
+
.. Compare with previous release in 2 - 3 sentences here.
add hyperlink when the documentation becomes available online.
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 :meth:`split`, :meth:`replace`, :meth:`rindex`,
+ :meth:`rpartition`, and :meth:`rsplit` methods of string-like types
+ (strings, Unicode strings, and :class:`bytearray` objects) now use a
+ fast reverse-search algorithm instead of a character-by-character
+ scan. This is sometimes faster by a factor of 10. (Added by
+ Florent Xicluna; :issue:`7462` and :issue:`7622`.)
* The :mod:`pickle` and :mod:`cPickle` modules now automatically
intern the strings used for attribute names, reducing memory usage
left-alignment. This has been changed to right-alignment, which seems
more sensible for numeric types. (Changed by Mark Dickinson; :issue:`6857`.)
-* Distutils is being more actively developed, thanks to Tarek Ziade
- who has taken over maintenance of the package. A new
- :file:`setup.py` subcommand, ``check``, will
- check that the arguments being passed to the :func:`setup` function
- are complete and correct (:issue:`5732`).
+* Distutils is being more actively developed, thanks to Tarek Ziadé
+ who has taken over maintenance of the package, so there are a number
+ of fixes and improvments.
+
+ A new :file:`setup.py` subcommand, ``check``, will check that the
+ arguments being passed to the :func:`setup` function are complete
+ and correct (:issue:`5732`).
+
+ Byte-compilation by the ``install_lib`` subcommand is now only done
+ if the ``sys.dont_write_bytecode`` setting allows it (:issue:`7071`).
:func:`distutils.sdist.add_defaults` now uses
*package_dir* and *data_files* to create the MANIFEST file.
It is no longer mandatory to store clear-text passwords in the
:file:`.pypirc` file when registering and uploading packages to PyPI. As long
as the username is present in that file, the :mod:`distutils` package will
- prompt for the password if not present. (Added by Tarek Ziade,
+ prompt for the password if not present. (Added by Tarek Ziadé,
based on an initial contribution by Nathan Van Gheem; :issue:`4394`.)
A Distutils setup can now specify that a C extension is optional by
:meth:`read_pkg_file` method will read the contents of a package's
:file:`PKG-INFO` metadata file. For an example of its use, see
:ref:`reading-metadata`.
- (Contributed by Tarek Ziade; :issue:`7457`.)
+ (Contributed by Tarek Ziadé; :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
recorded in a gzipped file by providing an optional timestamp to
the constructor. (Contributed by Jacques Frechet; :issue:`4272`.)
+ Files in gzip format can be padded with trailing zero bytes; the
+ :mod:`gzip` module will now consume these trailing bytes. (Fixed by
+ Tadek Pietraszek and Brian Curtin; :issue:`2846`.)
+
* 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`.)
The :class:`io.FileIO` class now raises an :exc:`OSError` when passed
an invalid file descriptor. (Implemented by Benjamin Peterson;
- :issue:`4991`.)
+ :issue:`4991`.) The :meth:`truncate` method now preserves the
+ file position; previously it would change the file position to the
+ end of the new file. (Fixed by Pascal Chambon; :issue:`6939`.)
* New function: ``itertools.compress(data, selectors)`` takes two
iterators. Elements of *data* are returned if the corresponding
passed to the callable.
(Contributed by lekma; :issue:`5585`.)
+ The :class:`Pool` class, which controls a pool of worker processes,
+ now has an optional *maxtasksperchild* parameter. Worker processes
+ will perform the specified number of tasks and then exit, causing the
+ :class:`Pool` to start a new worker. This is useful if tasks may leak
+ memory or other resources, or if some tasks will cause the worker to
+ become very large.
+ (Contributed by Charles Cazabon; :issue:`6963`.)
+
* The :mod:`nntplib` module now supports IPv6 addresses.
(Contributed by Derek Morr; :issue:`1664`.)
contributed by Travis H.; :issue:`6508`. Support for initgroups added
by Jean-Paul Calderone; :issue:`7333`.)
+ The :func:`normpath` function now preserves Unicode; if its input path
+ is a Unicode string, the return value is also a Unicode string.
+ (Fixed by Matt Giuca; :issue:`5827`.)
+
* The :mod:`pydoc` module now has help for the various symbols that Python
uses. You can now do ``help('<<')`` or ``help('@')``, for example.
(Contributed by David Laban; :issue:`4739`.)
:func:`getuserbase` returns the value of the :envvar:`USER_BASE`
environment variable, giving the path to a directory that can be used
to store data.
- (Contributed by Tarek Ziade; :issue:`6693`.)
+ (Contributed by Tarek Ziadé; :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;
(Contributed by Jeremy Hylton.)
* The ``sys.version_info`` value is now a named tuple, with attributes
- named ``major``, ``minor``, ``micro``, ``releaselevel``, and ``serial``.
- (Contributed by Ross Light; :issue:`4285`.)
-
-* The :mod:`tarfile` module now supports filtering the :class:`TarInfo`
+ named :attr:`major`, :attr:`minor`, :attr:`micro`,
+ :attr:`releaselevel`, and :attr:`serial`. (Contributed by Ross
+ Light; :issue:`4285`.)
+
+ :func:`sys.getwindowsversion` also returns a named tuple,
+ with attributes named :attr:`service_pack_major`,
+ :attr:`service_pack_minor`,
+ :attr:`suite_mask`, and :attr:`product_type`. (Contributed by
+ Brian Curtin; :issue:`7766`.)
+
+* The :mod:`tarfile` module's default error handling has changed, to
+ no longer suppress fatal errors. The default error level was previously 0,
+ which meant that errors would only result in a message being written to the
+ debug log, but because the debug log is not activated by default,
+ these errors go unnoticed. The default error level is now 1,
+ which raises an exception if there's an error.
+ (Changed by Lars Gustäbel; :issue:`7357`.)
+
+ :mod:`tarfile` now supports filtering the :class:`TarInfo`
objects being added to a tar file. When you call :meth:`TarFile.add`,
instance, you may supply an optional *filter* argument
that's a callable. The *filter* callable will be passed the
If the callable returns ``None``, the file will be excluded from the
resulting archive. This is more powerful than the existing
*exclude* argument, which has therefore been deprecated.
- (Added by Lars Gustaebel; :issue:`6856`.)
+ (Added by Lars Gustäbel; :issue:`6856`.)
* The :mod:`threading` module's :meth:`Event.wait` method now returns
the internal flag on exit. This means the method will usually
a timeout was provided and the operation timed out.
(Contributed by Tim Lesher; :issue:`1674032`.)
-* The :func:`is_zipfile` function in the :mod:`zipfile` module now
- accepts a file object, in addition to the path names accepted in earlier
- versions. (Contributed by Gabriel Genellina; :issue:`4756`.)
+* The :class:`UserDict` class is now a new-style class. (Changed by
+ Benjamin Peterson.)
+
+* The :mod:`zipfile` module's :class:`ZipFile` now supports the context
+ management protocol, so you can write ``with zipfile.ZipFile(...) as f: ...``.
+ (Contributed by Brian Curtin; :issue:`5511`.)
:mod:`zipfile` now supports archiving empty directories and
extracts them correctly. (Fixed by Kuba Wieczorek; :issue:`4710`.)
+ Reading files out of an archive is now faster, and interleaving
+ :meth:`read` and :meth:`readline` now works correctly.
+ (Contributed by Nir Aides; :issue:`7610`.)
+
+ The :func:`is_zipfile` function in the module now
+ accepts a file object, in addition to the path names accepted in earlier
+ versions. (Contributed by Gabriel Genellina; :issue:`4756`.)
.. ======================================================================
.. whole new modules get described in subsections here
instruction currently executing, and then look up the line number
corresponding to that address. (Added by Jeffrey Yasskin.)
-* New function: :cfunc:`PyLong_AsLongAndOverflow` approximates a Python long
- integer as a C :ctype:`long`. If the number is too large to fit into
- a :ctype:`long`, an *overflow* flag is set and returned to the caller.
- (Contributed by Case Van Horsen; :issue:`7528`.)
+* New functions: :cfunc:`PyLong_AsLongAndOverflow` and
+ :cfunc:`PyLong_AsLongLongAndOverflow` approximates a Python long
+ integer as a C :ctype:`long` or :ctype:`long long`.
+ If the number is too large to fit into
+ the output type, an *overflow* flag is set and returned to the caller.
+ (Contributed by Case Van Horsen; :issue:`7528` and :issue:`7767`.)
* New function: stemming from the rewrite of string-to-float conversion,
a new :cfunc:`PyOS_string_to_double` function was added. The old
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