Merged revisions 62260-62261,62266,62271,62277-62279,62289-62290,62293-62298,62302-62306,62308,62311,62313-62315,62319-62321 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
........
r62260 | gregory.p.smith | 2008-04-10 01:11:56 +0200 (Thu, 10 Apr 2008) | 2 lines
better diagnostics
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r62261 | gregory.p.smith | 2008-04-10 01:16:37 +0200 (Thu, 10 Apr 2008) | 3 lines
Raise SystemError when size < 0 is passed into PyString_FromStringAndSize,
PyBytes_FromStringAndSize or PyUnicode_FromStringAndSize. [issue2587]
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r62266 | neal.norwitz | 2008-04-10 07:46:39 +0200 (Thu, 10 Apr 2008) | 5 lines
Remove the test file before writing it in case there is no write permission.
This might help fix some of the failures on Windows box(es). It doesn't hurt
either way and ensure the tests are a little more self contained (ie have
less assumptions).
........
r62271 | gregory.p.smith | 2008-04-10 21:50:36 +0200 (Thu, 10 Apr 2008) | 2 lines
get rid of assert (size >= 0) now that an explicit if (size < 0) is in the code.
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r62277 | andrew.kuchling | 2008-04-10 23:27:10 +0200 (Thu, 10 Apr 2008) | 1 line
Remove forward-looking statement
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r62278 | andrew.kuchling | 2008-04-10 23:28:51 +0200 (Thu, 10 Apr 2008) | 1 line
Add punctuation
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r62279 | andrew.kuchling | 2008-04-10 23:29:01 +0200 (Thu, 10 Apr 2008) | 1 line
Use issue directive
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r62289 | thomas.heller | 2008-04-11 15:05:38 +0200 (Fri, 11 Apr 2008) | 3 lines
Move backwards compatibility macro to the correct place;
PyIndex_Check() was introduced in Python 2.5.
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r62290 | thomas.heller | 2008-04-11 16:20:26 +0200 (Fri, 11 Apr 2008) | 2 lines
Performance improvements.
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r62293 | christian.heimes | 2008-04-12 15:03:03 +0200 (Sat, 12 Apr 2008) | 2 lines
Applied patch #2617 from Frank Wierzbicki wit some extras from me
-J and -X are now reserved for Jython and non-standard arguments (e.g. IronPython). I've added some extra comments to make sure the reservation don't get missed in the future.
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r62294 | georg.brandl | 2008-04-12 20:11:18 +0200 (Sat, 12 Apr 2008) | 2 lines
Use absolute path in sys.path.
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r62295 | georg.brandl | 2008-04-12 20:36:09 +0200 (Sat, 12 Apr 2008) | 2 lines
#2615: small consistency update by Jeroen Ruigrok van der Werven.
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r62296 | georg.brandl | 2008-04-12 21:00:20 +0200 (Sat, 12 Apr 2008) | 2 lines
Add Jeroen.
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r62297 | georg.brandl | 2008-04-12 21:05:37 +0200 (Sat, 12 Apr 2008) | 2 lines
Don't offend snake lovers.
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r62298 | gregory.p.smith | 2008-04-12 22:37:48 +0200 (Sat, 12 Apr 2008) | 2 lines
fix compiler warnings
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r62302 | gregory.p.smith | 2008-04-13 00:24:04 +0200 (Sun, 13 Apr 2008) | 3 lines
socket.error inherits from IOError, it no longer needs listing in
the all_errors tuple.
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r62303 | brett.cannon | 2008-04-13 01:44:07 +0200 (Sun, 13 Apr 2008) | 8 lines
Re-implement the 'warnings' module in C. This allows for usage of the
'warnings' code in places where it was previously not possible (e.g., the
parser). It could also potentially lead to a speed-up in interpreter start-up
if the C version of the code (_warnings) is imported over the use of the
Python version in key places.
Closes issue #1631171.
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r62304 | gregory.p.smith | 2008-04-13 02:03:25 +0200 (Sun, 13 Apr 2008) | 3 lines
Adds a profile-opt target for easy compilation of a python binary using
gcc's profile guided optimization.
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r62305 | brett.cannon | 2008-04-13 02:18:44 +0200 (Sun, 13 Apr 2008) | 3 lines
Fix a bug in PySys_HasWarnOption() where it was not properly checking the
length of the list storing the warning options.
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r62306 | brett.cannon | 2008-04-13 02:25:15 +0200 (Sun, 13 Apr 2008) | 2 lines
Fix an accidental bug of an non-existent init function.
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r62308 | andrew.kuchling | 2008-04-13 03:05:59 +0200 (Sun, 13 Apr 2008) | 1 line
Mention -J, -X
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r62311 | benjamin.peterson | 2008-04-13 04:20:05 +0200 (Sun, 13 Apr 2008) | 2 lines
Give the "Interactive Interpreter Changes" section in 2.6 whatsnew a unique link name
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r62313 | brett.cannon | 2008-04-13 04:42:36 +0200 (Sun, 13 Apr 2008) | 3 lines
Fix test_warnings by making the state of things more consistent for each test
when it is run.
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r62314 | skip.montanaro | 2008-04-13 05:17:30 +0200 (Sun, 13 Apr 2008) | 2 lines
spelling
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r62315 | georg.brandl | 2008-04-13 09:07:44 +0200 (Sun, 13 Apr 2008) | 2 lines
Fix markup.
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r62319 | christian.heimes | 2008-04-13 11:30:17 +0200 (Sun, 13 Apr 2008) | 1 line
Fix compiler warning Include/warnings.h:19:28: warning: no newline at end of file
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r62320 | christian.heimes | 2008-04-13 11:33:24 +0200 (Sun, 13 Apr 2008) | 1 line
Use PyString_InternFromString instead of PyString_FromString for static vars
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r62321 | christian.heimes | 2008-04-13 11:37:05 +0200 (Sun, 13 Apr 2008) | 1 line
Added new files to the pcbuild files
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diff --git a/Doc/conf.py b/Doc/conf.py
index ec889d7..c9f9114 100644
--- a/Doc/conf.py
+++ b/Doc/conf.py
@@ -8,7 +8,7 @@
# that aren't pickleable (module imports are okay, they're removed automatically).
import sys, os, time
-sys.path.append('tools/sphinxext')
+sys.path.append(os.path.abspath('tools/sphinxext'))
# General configuration
# ---------------------
diff --git a/Doc/library/warnings.rst b/Doc/library/warnings.rst
index c3c0309..48a343c 100644
--- a/Doc/library/warnings.rst
+++ b/Doc/library/warnings.rst
@@ -202,16 +202,16 @@
sources).
-.. function:: showwarning(message, category, filename, lineno[, file])
+.. function:: showwarning(message, category, filename, lineno[, file[, line]])
Write a warning to a file. The default implementation calls
- ``formatwarning(message, category, filename, lineno)`` and writes the resulting
- string to *file*, which defaults to ``sys.stderr``. You may replace this
- function with an alternative implementation by assigning to
+ ``formatwarning(message, category, filename, lineno, line)`` and writes the
+ resulting string to *file*, which defaults to ``sys.stderr``. You may replace
+ this function with an alternative implementation by assigning to
``warnings.showwarning``.
-.. function:: formatwarning(message, category, filename, lineno)
+.. function:: formatwarning(message, category, filename, lineno[, line])
Format a warning the standard way. This returns a string which may contain
embedded newlines and ends in a newline.
diff --git a/Doc/library/xml.dom.minidom.rst b/Doc/library/xml.dom.minidom.rst
index de67d07..bb3ad02 100644
--- a/Doc/library/xml.dom.minidom.rst
+++ b/Doc/library/xml.dom.minidom.rst
@@ -126,7 +126,7 @@
to discard children of that node.
-.. method:: Node.writexml(writer[,indent=""[,addindent=""[,newl=""]]])
+.. method:: Node.writexml(writer[, indent=""[, addindent=""[, newl=""[, encoding=""]]]])
Write XML to the writer object. The writer should have a :meth:`write` method
which matches that of the file object interface. The *indent* parameter is the
@@ -153,7 +153,7 @@
encoding argument should be specified as "utf-8".
-.. method:: Node.toprettyxml([indent[, newl[, encoding]]])
+.. method:: Node.toprettyxml([indent=""[, newl=""[, encoding=""]]])
Return a pretty-printed version of the document. *indent* specifies the
indentation string and defaults to a tabulator; *newl* specifies the string
diff --git a/Doc/reference/simple_stmts.rst b/Doc/reference/simple_stmts.rst
index e149710..a9d534e 100644
--- a/Doc/reference/simple_stmts.rst
+++ b/Doc/reference/simple_stmts.rst
@@ -438,7 +438,36 @@
and is only used in the body of the generator function. Using a :keyword:`yield`
statement in a function definition is sufficient to cause that definition to
create a generator function instead of a normal function.
->>>>>>> .merge-right.r59773
+When a generator function is called, it returns an iterator known as a generator
+iterator, or more commonly, a generator. The body of the generator function is
+executed by calling the generator's :meth:`next` method repeatedly until it
+raises an exception.
+
+When a :keyword:`yield` statement is executed, the state of the generator is
+frozen and the value of :token:`expression_list` is returned to :meth:`next`'s
+caller. By "frozen" we mean that all local state is retained, including the
+current bindings of local variables, the instruction pointer, and the internal
+evaluation stack: enough information is saved so that the next time :meth:`next`
+is invoked, the function can proceed exactly as if the :keyword:`yield`
+statement were just another external call.
+
+As of Python version 2.5, the :keyword:`yield` statement is now allowed in the
+:keyword:`try` clause of a :keyword:`try` ... :keyword:`finally` construct. If
+the generator is not resumed before it is finalized (by reaching a zero
+reference count or by being garbage collected), the generator-iterator's
+:meth:`close` method will be called, allowing any pending :keyword:`finally`
+clauses to execute.
+
+
+.. seealso::
+
+ :pep:`0255` - Simple Generators
+ The proposal for adding generators and the :keyword:`yield` statement to Python.
+
+ :pep:`0342` - Coroutines via Enhanced Generators
+ The proposal that, among other generator enhancements, proposed allowing
+ :keyword:`yield` to appear inside a :keyword:`try` ... :keyword:`finally` block.
+
.. _raise:
diff --git a/Doc/tutorial/appetite.rst b/Doc/tutorial/appetite.rst
index 120955e..b5e1a16 100644
--- a/Doc/tutorial/appetite.rst
+++ b/Doc/tutorial/appetite.rst
@@ -68,7 +68,7 @@
application.
By the way, the language is named after the BBC show "Monty Python's Flying
-Circus" and has nothing to do with nasty reptiles. Making references to Monty
+Circus" and has nothing to do with reptiles. Making references to Monty
Python skits in documentation is not only allowed, it is encouraged!
Now that you are all excited about Python, you'll want to examine it in some
diff --git a/Doc/whatsnew/2.6.rst b/Doc/whatsnew/2.6.rst
index 8cbe49f..cc20423 100644
--- a/Doc/whatsnew/2.6.rst
+++ b/Doc/whatsnew/2.6.rst
@@ -40,12 +40,11 @@
* Credit the author of a patch or bugfix. Just the name is
sufficient; the e-mail address isn't necessary.
- * It's helpful to add the bug/patch number as a comment:
+ * It's helpful to add the bug/patch number in an parenthetical
- .. Patch 12345
XXX Describe the transmogrify() function added to the socket
module.
- (Contributed by P.Y. Developer.)
+ (Contributed by P.Y. Developer; :issue:`12345`.)
This saves the maintainer the effort of going through the SVN logs
when researching a change.
@@ -53,11 +52,13 @@
This article explains the new features in Python 2.6. No release date for
Python 2.6 has been set; it will probably be released in mid 2008.
-This article doesn't attempt to provide a complete specification of the new
-features, but instead provides a convenient overview. For full details, you
-should refer to the documentation for Python 2.6. If you want to understand the
-complete implementation and design rationale, refer to the PEP for a particular
-new feature.
+This article doesn't attempt to provide a complete specification of
+the new features, but instead provides a convenient overview. For
+full details, you should refer to the documentation for Python 2.6. If
+you want to understand the complete implementation and design
+rationale, refer to the PEP for a particular new feature. For smaller
+changes, this edition of "What's New in Python" links to the bug/patch
+item for each change whenever possible.
.. Compare with previous release in 2 - 3 sentences here.
add hyperlink when the documentation becomes available online.
@@ -147,9 +148,13 @@
set up at http://bugs.python.org. One installation of Roundup can
host multiple trackers, and this server now also hosts issue trackers
for Jython and for the Python web site. It will surely find
-other uses in the future.
+other uses in the future. Where possible,
+this edition of "What's New in Python" links to the bug/patch
+item for each change.
-Hosting is kindly provided by `Upfront Systems <http://www.upfrontsystems.co.za/>`__ of Stellenbosch, South Africa. Martin von Loewis put a
+Hosting is kindly provided by
+`Upfront Systems <http://www.upfrontsystems.co.za/>`__
+of Stellenbosch, South Africa. Martin von Loewis put a
lot of effort into importing existing bugs and patches from
SourceForge; his scripts for this import operation are at
http://svn.python.org/view/tracker/importer/.
@@ -187,16 +192,15 @@
SGML or, later, XML, but performing a good conversion is a major task
and no one pursued the task to completion.
-During the 2.6 development cycle, Georg Brandl put a substantial
-effort into building a new toolchain called Sphinx
-for processing the documentation.
-The input format is reStructured Text,
-a markup commonly used in the Python community that supports
-custom extensions and directives. Sphinx concentrates
-on HTML output, producing attractively styled
-and modern HTML, though printed output is still supported through
-conversion to LaTeX. Sphinx is a standalone package that
-can be used in documenting other projects.
+During the 2.6 development cycle, Georg Brandl put a substantial
+effort into building a new toolchain for processing the documentation.
+The resulting package is called Sphinx, and is available from
+http://sphinx.pocoo.org/. The input format is reStructured Text, a
+markup commonly used in the Python community that supports custom
+extensions and directives. Sphinx concentrates on HTML output,
+producing attractively styled and modern HTML, though printed output
+is still supported through conversion to LaTeX. Sphinx is a
+standalone package that can be used in documenting other projects.
.. seealso::
@@ -1266,30 +1270,22 @@
have a :meth:`__complex__` method. In particular, the functions in the
:mod:`cmath` module will now accept objects with this method.
This is a backport of a Python 3.0 change.
- (Contributed by Mark Dickinson.)
-
- .. Patch #1675423
+ (Contributed by Mark Dickinson; :issue:`1675423`.)
A numerical nicety: when creating a complex number from two floats
on systems that support signed zeros (-0 and +0), the
:func:`complex` constructor will now preserve the sign
- of the zero.
-
- .. Patch 1507
+ of the zero. (:issue:`1507`)
* More floating-point features were also added. The :func:`float` function
will now turn the strings ``+nan`` and ``-nan`` into the corresponding
IEEE 754 Not A Number values, and ``+inf`` and ``-inf`` into
positive or negative infinity. This works on any platform with
- IEEE 754 semantics. (Contributed by Christian Heimes.)
-
- .. Patch 1635
+ IEEE 754 semantics. (Contributed by Christian Heimes; :issue:`1635`.)
Other functions in the :mod:`math` module, :func:`isinf` and
:func:`isnan`, return true if their floating-point argument is
- infinite or Not A Number.
-
- .. Patch 1640
+ infinite or Not A Number. (:issue:`1640`)
The ``math.copysign(x, y)`` function
copies the sign bit of an IEEE 754 number, returning the absolute
@@ -1306,34 +1302,26 @@
:exc:`BaseException` instead of :exc:`Exception`. This means
that an exception handler that does ``except Exception:``
will not inadvertently catch :exc:`GeneratorExit`.
- (Contributed by Chad Austin.)
-
- .. Patch #1537
+ (Contributed by Chad Austin; :issue:`1537`.)
* Generator objects now have a :attr:`gi_code` attribute that refers to
the original code object backing the generator.
- (Contributed by Collin Winter.)
-
- .. Patch #1473257
+ (Contributed by Collin Winter; :issue:`1473257`.)
* The :func:`compile` built-in function now accepts keyword arguments
- as well as positional parameters. (Contributed by Thomas Wouters.)
-
- .. Patch 1444529
+ as well as positional parameters. (Contributed by Thomas Wouters;
+ :issue:`1444529`.)
* The :func:`complex` constructor now accepts strings containing
parenthesized complex numbers, letting ``complex(repr(cmplx))``
will now round-trip values. For example, ``complex('(3+4j)')``
- now returns the value (3+4j).
-
- .. Patch 1491866
+ now returns the value (3+4j). (:issue:`1491866`)
* The string :meth:`translate` method now accepts ``None`` as the
translation table parameter, which is treated as the identity
transformation. This makes it easier to carry out operations
- that only delete characters. (Contributed by Bengt Richter.)
-
- .. Patch 1193128
+ that only delete characters. (Contributed by Bengt Richter;
+ :issue:`1193128`.)
* The built-in :func:`dir` function now checks for a :meth:`__dir__`
method on the objects it receives. This method must return a list
@@ -1341,8 +1329,7 @@
and lets the object control the value that :func:`dir` produces.
Objects that have :meth:`__getattr__` or :meth:`__getattribute__`
methods can use this to advertise pseudo-attributes they will honor.
-
- .. Patch 1591665
+ (:issue:`1591665`)
* Instance method objects have new attributes for the object and function
comprising the method; the new synonym for :attr:`im_self` is
@@ -1368,9 +1355,7 @@
so the cache should remain correct even in the face of Python's dynamic
nature.
(Original optimization implemented by Armin Rigo, updated for
- Python 2.6 by Kevin Jacobs.)
-
- .. Patch 1700288
+ Python 2.6 by Kevin Jacobs; :issue:`1700288`.)
* All of the functions in the :mod:`struct` module have been rewritten in
C, thanks to work at the Need For Speed sprint.
@@ -1398,6 +1383,20 @@
.. ======================================================================
+.. _new-26-interactive:
+
+Interactive Interpreter Changes
+-------------------------------
+
+Two command-line options have been reserved for use by other Python
+implementations. The :option:`-J` switch has been reserved for use by
+Jython for Jython-specific options, such as ones that are passed to
+the underlying JVM. :option:`-X` has been reserved for options
+specific to a particular implementation of Python such as CPython,
+Jython, or IronPython. If either option is used with Python 2.6, the
+interpreter will report that the option isn't currently used.
+
+.. ======================================================================
New, Improved, and Deprecated Modules
=====================================
@@ -1409,9 +1408,7 @@
* The :mod:`bsddb.dbshelve` module now uses the highest pickling protocol
available, instead of restricting itself to protocol 1.
- (Contributed by W. Barnes.)
-
- .. Patch 1551443
+ (Contributed by W. Barnes; :issue:`1551443`.)
* A new data type in the :mod:`collections` module: :class:`namedtuple(typename,
fieldnames)` is a factory function that creates subclasses of the standard tuple
@@ -1464,9 +1461,8 @@
(Contributed by Raymond Hettinger.)
* The :mod:`ctypes` module now supports a :class:`c_bool` datatype
- that represents the C99 ``bool`` type. (Contributed by David Remahl.)
-
- .. Patch 1649190
+ that represents the C99 ``bool`` type. (Contributed by David Remahl;
+ :issue:`1649190`.)
The :mod:`ctypes` string, buffer and array types also have improved
support for extended slicing syntax,
@@ -1492,9 +1488,7 @@
* The :mod:`datetime` module's :meth:`strftime` methods now support a
``%f`` format code that expands to the number of microseconds in the
object, zero-padded on
- the left to six places. (Contributed by Skip Montanaro.)
-
- .. Patch 1158
+ the left to six places. (Contributed by Skip Montanaro; :issue:`1158`.)
* The :mod:`decimal` module was updated to version 1.66 of
`the General Decimal Specification <http://www2.hursley.ibm.com/decimal/decarith.html>`__. New features
@@ -1527,22 +1521,17 @@
:meth:`storbinary` and :meth:`storlines`
now take an optional *callback* parameter that will be called with
each block of data after the data has been sent.
- (Contributed by Phil Schwartz.)
-
- .. Patch 1221598
+ (Contributed by Phil Schwartz; :issue:`1221598`.)
* The :func:`reduce` built-in function is also available in the
:mod:`functools` module. In Python 3.0, the built-in is dropped and it's
only available from :mod:`functools`; currently there are no plans
to drop the built-in in the 2.x series. (Patched by
- Christian Heimes.)
-
- .. Patch 1739906
+ Christian Heimes; :issue:`1739906`.)
* The :func:`glob.glob` function can now return Unicode filenames if
- a Unicode path was used and Unicode filenames are matched within the directory.
-
- .. Patch #1001604
+ a Unicode path was used and Unicode filenames are matched within the
+ directory. (:issue:`1001604`)
* The :mod:`gopherlib` module has been removed.
@@ -1655,9 +1644,7 @@
* The :mod:`macfs` module has been removed. This in turn required the
:func:`macostools.touched` function to be removed because it depended on the
- :mod:`macfs` module.
-
- .. Patch #1490190
+ :mod:`macfs` module. (:issue:`1490190`)
* :class:`mmap` objects now have a :meth:`rfind` method that finds
a substring, beginning at the end of the string and searching
@@ -1706,49 +1693,38 @@
visit the directory's contents. For backward compatibility, the
parameter's default value is false. Note that the function can fall
into an infinite recursion if there's a symlink that points to a
- parent directory.
+ parent directory. (:issue:`1273829`)
- .. Patch 1273829
-
* The ``os.environ`` object's :meth:`clear` method will now unset the
environment variables using :func:`os.unsetenv` in addition to clearing
- the object's keys. (Contributed by Martin Horcicka.)
-
- .. Patch #1181
+ the object's keys. (Contributed by Martin Horcicka; :issue:`1181`.)
* In the :mod:`os.path` module, the :func:`splitext` function
has been changed to not split on leading period characters.
This produces better results when operating on Unix's dot-files.
For example, ``os.path.splitext('.ipython')``
now returns ``('.ipython', '')`` instead of ``('', '.ipython')``.
-
- .. Bug #115886
+ (:issue:`115886`)
A new function, :func:`relpath(path, start)` returns a relative path
from the ``start`` path, if it's supplied, or from the current
working directory to the destination ``path``. (Contributed by
- Richard Barran.)
-
- .. Patch 1339796
+ Richard Barran; :issue:`1339796`.)
On Windows, :func:`os.path.expandvars` will now expand environment variables
in the form "%var%", and "~user" will be expanded into the
- user's home directory path. (Contributed by Josiah Carlson.)
-
- .. Patch 957650
+ user's home directory path. (Contributed by Josiah Carlson;
+ :issue:`957650`.)
* The Python debugger provided by the :mod:`pdb` module
gained a new command: "run" restarts the Python program being debugged,
and can optionally take new command-line arguments for the program.
- (Contributed by Rocky Bernstein.)
-
- .. Patch #1393667
+ (Contributed by Rocky Bernstein; :issue:`1393667`.)
The :func:`post_mortem` function, used to enter debugging of a
traceback, will now use the traceback returned by :func:`sys.exc_info`
- if no traceback is supplied. (Contributed by Facundo Batista.)
-
- .. Patch #1106316
+ if no traceback is supplied. (Contributed by Facundo Batista;
+ :issue:`1106316`.)
* The :mod:`pickletools` module now has an :func:`optimize` function
that takes a string containing a pickle and removes some unused
@@ -1765,16 +1741,12 @@
``os.closerange(*low*, *high*)`` efficiently closes all file descriptors
from *low* to *high*, ignoring any errors and not including *high* itself.
This function is now used by the :mod:`subprocess` module to make starting
- processes faster. (Contributed by Georg Brandl.)
-
- .. Patch #1663329
+ processes faster. (Contributed by Georg Brandl; :issue:`1663329`.)
* The :mod:`pyexpat` module's :class:`Parser` objects now allow setting
their :attr:`buffer_size` attribute to change the size of the buffer
used to hold character data.
- (Contributed by Achim Gaedke.)
-
- .. Patch 1137
+ (Contributed by Achim Gaedke; :issue:`1137`.)
* The :mod:`Queue` module now provides queue classes that retrieve entries
in different orders. The :class:`PriorityQueue` class stores
@@ -1788,25 +1760,19 @@
system, and vice versa. Unfortunately, this change also means
that Python 2.6's :class:`Random` objects can't be unpickled correctly
on earlier versions of Python.
- (Contributed by Shawn Ligocki.)
-
- .. Issue 1727780
+ (Contributed by Shawn Ligocki; :issue:`1727780`.)
The new ``triangular(low, high, mode)`` function returns random
numbers following a triangular distribution. The returned values
are between *low* and *high*, not including *high* itself, and
with *mode* as the mode, the most frequently occurring value
in the distribution. (Contributed by Wladmir van der Laan and
- Raymond Hettinger.)
-
- .. Patch 1681432
+ Raymond Hettinger; :issue:`1681432`.)
* Long regular expression searches carried out by the :mod:`re`
module will now check for signals being delivered, so especially
long searches can now be interrupted.
- (Contributed by Josh Hoyt and Ralf Schmitt.)
-
- .. Patch 846388
+ (Contributed by Josh Hoyt and Ralf Schmitt; :issue:`846388`.)
* The :mod:`rgbimg` module has been removed.
@@ -1814,9 +1780,7 @@
have a read-only :attr:`queue` attribute that returns the
contents of the scheduler's queue, represented as a list of
named tuples with the fields ``(time, priority, action, argument)``.
- (Contributed by Raymond Hettinger.)
-
- .. Patch 1861
+ (Contributed by Raymond Hettinger; :issue:`1861`.)
* The :mod:`select` module now has wrapper functions
for the Linux :cfunc:`epoll` and BSD :cfunc:`kqueue` system calls.
@@ -1824,11 +1788,7 @@
objects; ``pollobj.modify(fd, eventmask)`` takes a file descriptor
or file object and an event mask,
- (Contributed by Christian Heimes.)
-
- .. Patch 1657
-
- .. XXX
+ (Contributed by Christian Heimes; :issue:`1657`.)
* The :mod:`sets` module has been deprecated; it's better to
use the built-in :class:`set` and :class:`frozenset` types.
@@ -1850,9 +1810,7 @@
On receiving a signal, a byte will be written and the main event loop
will be woken up, without the need to poll.
- (Contributed by Adam Olsen.)
-
- .. Patch 1583
+ (Contributed by Adam Olsen; :issue:`1583`.)
The :func:`siginterrupt` function is now available from Python code,
and allows changing whether signals can interrupt system calls or not.
@@ -1863,10 +1821,7 @@
allows setting interval timers that will cause a signal to be
delivered to the process after a specified time, measured in
wall-clock time, consumed process time, or combined process+system
- time. (Contributed by Guilherme Polo.)
-
- .. Patch 2240
-
+ time. (Contributed by Guilherme Polo; :issue:`2240`.)
* The :mod:`smtplib` module now supports SMTP over SSL thanks to the
addition of the :class:`SMTP_SSL` class. This class supports an
@@ -1881,22 +1836,17 @@
(SMTP over SSL contributed by Monty Taylor; timeout parameter
added by Facundo Batista; LMTP implemented by Leif
- Hedstrom.)
-
- .. Patch #957003
+ Hedstrom; :issue:`957003`.)
* In the :mod:`smtplib` module, SMTP.starttls() now complies with :rfc:`3207`
and forgets any knowledge obtained from the server not obtained from
- the TLS negotiation itself. (Patch contributed by Bill Fenner.)
-
- .. Issue 829951
+ the TLS negotiation itself. (Patch contributed by Bill Fenner;
+ :issue:`829951`.)
* The :mod:`socket` module now supports TIPC (http://tipc.sf.net),
a high-performance non-IP-based protocol designed for use in clustered
environments. TIPC addresses are 4- or 5-tuples.
- (Contributed by Alberto Bertogli.)
-
- .. Patch #1646
+ (Contributed by Alberto Bertogli; :issue:`1646`.)
* The base classes in the :mod:`SocketServer` module now support
calling a :meth:`handle_timeout` method after a span of inactivity
@@ -1904,9 +1854,8 @@
by Michael Pomraning.) The :meth:`serve_forever` method
now takes an optional poll interval measured in seconds,
controlling how often the server will check for a shutdown request.
- (Contributed by Pedro Werneck and Jeffrey Yasskin.)
-
- .. Patch #742598, #1193577
+ (Contributed by Pedro Werneck and Jeffrey Yasskin;
+ :issue:`742598`, :issue:`1193577`.)
* The :mod:`struct` module now supports the C99 :ctype:`_Bool` type,
using the format character ``'?'``.
@@ -1919,9 +1868,8 @@
include
:attr:`mant_dig` (number of digits in the mantissa), :attr:`epsilon`
(smallest difference between 1.0 and the next largest value
- representable), and several others. (Contributed by Christian Heimes.)
-
- .. Patch 1534
+ representable), and several others. (Contributed by Christian Heimes;
+ :issue:`1534`.)
Another new variable, :attr:`dont_write_bytecode`, controls whether Python
writes any :file:`.pyc` or :file:`.pyo` files on importing a module.
@@ -1943,9 +1891,7 @@
It's now possible to determine the current profiler and tracer functions
by calling :func:`sys.getprofile` and :func:`sys.gettrace`.
- (Contributed by Georg Brandl.)
-
- .. Patch #1648
+ (Contributed by Georg Brandl; :issue:`1648`.)
* The :mod:`tarfile` module now supports POSIX.1-2001 (pax) and
POSIX.1-1988 (ustar) format tarfiles, in addition to the GNU tar
@@ -1979,9 +1925,7 @@
* The :class:`tempfile.NamedTemporaryFile` class usually deletes
the temporary file it created when the file is closed. This
behaviour can now be changed by passing ``delete=False`` to the
- constructor. (Contributed by Damien Miller.)
-
- .. Patch #1537850
+ constructor. (Contributed by Damien Miller; :issue:`1537850`.)
A new class, :class:`SpooledTemporaryFile`, behaves like
a temporary file but stores its data in memory until a maximum size is
@@ -1991,9 +1935,7 @@
The :class:`NamedTemporaryFile` and :class:`SpooledTemporaryFile` classes
both work as context managers, so you can write
``with tempfile.NamedTemporaryFile() as tmp: ...``.
- (Contributed by Alexander Belopolsky.)
-
- .. Issue #2021
+ (Contributed by Alexander Belopolsky; :issue:`2021`.)
* The :mod:`test.test_support` module now contains a
:func:`EnvironmentVarGuard`
@@ -2030,9 +1972,7 @@
whitespace.
>>>
- (Contributed by Dwayne Bailey.)
-
- .. Patch #1581073
+ (Contributed by Dwayne Bailey; :issue:`1581073`.)
* The :mod:`timeit` module now accepts callables as well as strings
for the statement being timed and for the setup code.
@@ -2040,9 +1980,8 @@
:class:`Timer` instances:
``repeat(stmt, setup, time, repeat, number)`` and
``timeit(stmt, setup, time, number)`` create an instance and call
- the corresponding method. (Contributed by Erik Demaine.)
-
- .. Patch #1533909
+ the corresponding method. (Contributed by Erik Demaine;
+ :issue:`1533909`.)
* An optional ``timeout`` parameter was added to the
:func:`urllib.urlopen` function and the
@@ -2065,9 +2004,7 @@
:attr:`allow_reuse_address` attribute before calling the
:meth:`server_bind` and :meth:`server_activate` methods to
open the socket and begin listening for connections.
- (Contributed by Peter Parente.)
-
- .. Patch 1599845
+ (Contributed by Peter Parente; :issue:`1599845`.)
:class:`SimpleXMLRPCServer` also has a :attr:`_send_traceback_header`
attribute; if true, the exception and formatted traceback are returned
@@ -2090,9 +2027,7 @@
# Unpack all the files in the archive.
z.extractall()
- (Contributed by Alan McIntyre.)
-
- .. Patch 467924
+ (Contributed by Alan McIntyre; :issue:`467924`.)
.. ======================================================================
.. whole new modules get described in subsections here
@@ -2178,9 +2113,12 @@
* The BerkeleyDB module now has a C API object, available as
``bsddb.db.api``. This object can be used by other C extensions
that wish to use the :mod:`bsddb` module for their own purposes.
- (Contributed by Duncan Grisby.)
+ (Contributed by Duncan Grisby; :issue:`1551895`.)
- .. Patch 1551895
+* The new buffer interface, previously described in
+ `the PEP 3118 section <#pep-3118-revised-buffer-protocol>`__,
+ adds :cfunc:`PyObject_GetBuffer` and :cfunc:`PyObject_ReleaseBuffer`,
+ as well as a few other functions.
* Python's use of the C stdio library is now thread-safe, or at least
as thread-safe as the underlying library is. A long-standing potential
@@ -2195,6 +2133,14 @@
immediately after the GIL is re-acquired.
(Contributed by Antoine Pitrou and Gregory P. Smith.)
+* Importing modules simultaneously in two different threads no longer
+ deadlocks; it will now raise an :exc:`ImportError`. A new API
+ function, :cfunc:`PyImport_ImportModuleNoBlock`, will look for a
+ module in ``sys.modules`` first, then try to import it after
+ acquiring an import lock. If the import lock is held by another
+ thread, the :exc:`ImportError` is raised.
+ (Contributed by Christian Heimes.)
+
* Several functions return information about the platform's
floating-point support. :cfunc:`PyFloat_GetMax` returns
the maximum representable floating point value,
@@ -2204,16 +2150,12 @@
``"mant_dig"`` (number of digits in the mantissa), ``"epsilon"``
(smallest difference between 1.0 and the next largest value
representable), and several others.
- (Contributed by Christian Heimes.)
-
- .. Issue 1534
+ (Contributed by Christian Heimes; :issue:`1534`.)
* Python's C API now includes two functions for case-insensitive string
comparisons, ``PyOS_stricmp(char*, char*)``
and ``PyOS_strnicmp(char*, char*, Py_ssize_t)``.
- (Contributed by Christian Heimes.)
-
- .. Issue 1635
+ (Contributed by Christian Heimes; :issue:`1635`.)
* Many C extensions define their own little macro for adding
integers and strings to the module's dictionary in the
@@ -2229,14 +2171,11 @@
:cmacro:`Py_Refcnt()` became :cmacro:`Py_REFCNT()`.
The mixed-case macros are still available
in Python 2.6 for backward compatibility.
-
- .. Issue 1629
+ (:issue:`1629`)
* Distutils now places C extensions it builds in a
different directory when running on a debug version of Python.
- (Contributed by Collin Winter.)
-
- .. Patch 1530959
+ (Contributed by Collin Winter; :issue:`1530959`.)
* Several basic data types, such as integers and strings, maintain
internal free lists of objects that can be re-used. The data
@@ -2284,8 +2223,7 @@
exposing the :func:`DisableReflectionKey`, :func:`EnableReflectionKey`,
and :func:`QueryReflectionKey` functions, which enable and disable
registry reflection for 32-bit processes running on 64-bit systems.
-
- .. Patch 1753245
+ (:issue:`1753245`)
* The new default compiler on Windows is Visual Studio 2008 (VS 9.0). The
build directories for Visual Studio 2003 (VS7.1) and 2005 (VS8.0)
@@ -2346,21 +2284,21 @@
the implementation now explicitly checks for this case and raises
an :exc:`ImportError`.
+* C API: the :cfunc:`PyImport_Import` and :cfunc:`PyImport_ImportModule`
+ functions now default to absolute imports, not relative imports.
+ This will affect C extensions that import other modules.
+
* The :mod:`socket` module exception :exc:`socket.error` now inherits
from :exc:`IOError`. Previously it wasn't a subclass of
:exc:`StandardError` but now it is, through :exc:`IOError`.
- (Implemented by Gregory P. Smith.)
-
- .. Issue 1706815
+ (Implemented by Gregory P. Smith; :issue:`1706815`.)
* The :mod:`xmlrpclib` module no longer automatically converts
:class:`datetime.date` and :class:`datetime.time` to the
:class:`xmlrpclib.DateTime` type; the conversion semantics were
not necessarily correct for all applications. Code using
:mod:`xmlrpclib` should convert :class:`date` and :class:`time`
- instances.
-
- .. Issue 1330538
+ instances. (:issue:`1330538`)
* (3.0-warning mode) The :class:`Exception` class now warns
when accessed using slicing or index access; having
@@ -2384,5 +2322,6 @@
================
The author would like to thank the following people for offering suggestions,
-corrections and assistance with various drafts of this article: Jim Jewett.
+corrections and assistance with various drafts of this article:
+Georg Brandl, Jim Jewett.