cpython/Doc/whatsnew/whatsnew30.tex

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Merged revisions 55631-55794 via svnmerge from svn+ssh://pythondev@svn.python.org/python/branches/p3yk ................ r55636 | neal.norwitz | 2007-05-29 00:06:39 -0700 (Tue, 29 May 2007) | 149 lines Merged revisions 55506-55635 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r55507 | georg.brandl | 2007-05-22 07:28:17 -0700 (Tue, 22 May 2007) | 2 lines Remove the "panel" module doc file which has been ignored since 1994. ........ r55522 | mark.hammond | 2007-05-22 19:04:28 -0700 (Tue, 22 May 2007) | 4 lines Remove definition of PY_UNICODE_TYPE from pyconfig.h, allowing the definition in unicodeobject.h to be used, giving us the desired wchar_t in place of 'unsigned short'. As discussed on python-dev. ........ r55525 | neal.norwitz | 2007-05-22 23:35:32 -0700 (Tue, 22 May 2007) | 6 lines Add -3 option to the interpreter to warn about features that are deprecated and will be changed/removed in Python 3.0. This patch is mostly from Anthony. I tweaked some format and added a little doc. ........ r55527 | neal.norwitz | 2007-05-22 23:57:35 -0700 (Tue, 22 May 2007) | 1 line Whitespace cleanup ........ r55528 | neal.norwitz | 2007-05-22 23:58:36 -0700 (Tue, 22 May 2007) | 1 line Add a bunch more deprecation warnings for builtins that are going away in 3.0 ........ r55549 | georg.brandl | 2007-05-24 09:49:29 -0700 (Thu, 24 May 2007) | 2 lines shlex.split() now has an optional "posix" parameter. ........ r55550 | georg.brandl | 2007-05-24 10:33:33 -0700 (Thu, 24 May 2007) | 2 lines Fix parameter passing. ........ r55555 | facundo.batista | 2007-05-24 10:50:54 -0700 (Thu, 24 May 2007) | 6 lines Added an optional timeout parameter to urllib.ftpwrapper, with tests (for this and a basic one, because there weren't any). Changed also NEWS, but didn't find documentation for this function, assumed it wasn't public... ........ r55563 | facundo.batista | 2007-05-24 13:01:59 -0700 (Thu, 24 May 2007) | 4 lines Removed the .recv() in the test, is not necessary, and was causing problems that didn't have anything to do with was actually being tested... ........ r55564 | facundo.batista | 2007-05-24 13:51:19 -0700 (Thu, 24 May 2007) | 5 lines Let's see if reading exactly what is written allow this live test to pass (now I know why there were so few tests in ftp, http, etc, :( ). ........ r55567 | facundo.batista | 2007-05-24 20:10:28 -0700 (Thu, 24 May 2007) | 4 lines Trying to make the tests work in Windows and Solaris, everywhere else just works ........ r55568 | facundo.batista | 2007-05-24 20:47:19 -0700 (Thu, 24 May 2007) | 4 lines Fixing stupid error, and introducing a sleep, to see if the other thread is awakened and finish sending data. ........ r55569 | facundo.batista | 2007-05-24 21:20:22 -0700 (Thu, 24 May 2007) | 4 lines Commenting out the tests until find out who can test them in one of the problematic enviroments. ........ r55570 | neal.norwitz | 2007-05-24 22:13:40 -0700 (Thu, 24 May 2007) | 2 lines Get test passing again by commenting out the reference to the test class. ........ r55575 | vinay.sajip | 2007-05-25 00:05:59 -0700 (Fri, 25 May 2007) | 1 line Updated docstring for SysLogHandler (#1720726). ........ r55576 | vinay.sajip | 2007-05-25 00:06:55 -0700 (Fri, 25 May 2007) | 1 line Updated documentation for SysLogHandler (#1720726). ........ r55592 | brett.cannon | 2007-05-25 13:17:15 -0700 (Fri, 25 May 2007) | 3 lines Remove direct call's to file's constructor and replace them with calls to open() as ths is considered best practice. ........ r55601 | kristjan.jonsson | 2007-05-26 12:19:50 -0700 (Sat, 26 May 2007) | 1 line Remove the rgbimgmodule from PCBuild8 ........ r55602 | kristjan.jonsson | 2007-05-26 12:31:39 -0700 (Sat, 26 May 2007) | 1 line Include <windows.h> after python.h, so that WINNT is properly set before windows.h is included. Fixes warnings in PC builds. ........ r55603 | walter.doerwald | 2007-05-26 14:04:13 -0700 (Sat, 26 May 2007) | 2 lines Fix typo. ........ r55604 | peter.astrand | 2007-05-26 15:18:20 -0700 (Sat, 26 May 2007) | 1 line Applied patch 1669481, slightly modified: Support close_fds on Win32 ........ r55606 | neal.norwitz | 2007-05-26 21:08:54 -0700 (Sat, 26 May 2007) | 2 lines Add the new function object attribute names from py3k. ........ r55617 | lars.gustaebel | 2007-05-27 12:49:30 -0700 (Sun, 27 May 2007) | 20 lines Added errors argument to TarFile class that allows the user to specify an error handling scheme for character conversion. Additional scheme "utf-8" in read mode. Unicode input filenames are now supported by design. The values of the pax_headers dictionary are now limited to unicode objects. Fixed: The prefix field is no longer used in PAX_FORMAT (in conformance with POSIX). Fixed: In read mode use a possible pax header size field. Fixed: Strip trailing slashes from pax header name values. Fixed: Give values in user-specified pax_headers precedence when writing. Added unicode tests. Added pax/regtype4 member to testtar.tar all possible number fields in a pax header. Added two chapters to the documentation about the different formats tarfile.py supports and how unicode issues are handled. ........ r55618 | raymond.hettinger | 2007-05-27 22:23:22 -0700 (Sun, 27 May 2007) | 1 line Explain when groupby() issues a new group. ........ r55634 | martin.v.loewis | 2007-05-28 21:01:29 -0700 (Mon, 28 May 2007) | 2 lines Test pre-commit hook for a link to a .py file. ........ r55635 | martin.v.loewis | 2007-05-28 21:02:03 -0700 (Mon, 28 May 2007) | 2 lines Revert 55634. ........ ................ r55639 | neal.norwitz | 2007-05-29 00:58:11 -0700 (Tue, 29 May 2007) | 1 line Remove sys.exc_{type,exc_value,exc_traceback} ................ r55641 | neal.norwitz | 2007-05-29 01:03:50 -0700 (Tue, 29 May 2007) | 1 line Missed one sys.exc_type. I wonder why exc_{value,traceback} were already gone ................ r55642 | neal.norwitz | 2007-05-29 01:08:33 -0700 (Tue, 29 May 2007) | 1 line Missed more doc for sys.exc_* attrs. ................ r55643 | neal.norwitz | 2007-05-29 01:18:19 -0700 (Tue, 29 May 2007) | 1 line Remove sys.exc_clear() ................ r55665 | guido.van.rossum | 2007-05-29 19:45:43 -0700 (Tue, 29 May 2007) | 4 lines Make None, True, False keywords. We can now also delete all the other places that explicitly forbid assignment to None, but I'm not going to bother right now. ................ r55666 | guido.van.rossum | 2007-05-29 20:01:51 -0700 (Tue, 29 May 2007) | 3 lines Found another place that needs check for forbidden names. Fixed test_syntax.py accordingly (it helped me find that one). ................ r55668 | guido.van.rossum | 2007-05-29 20:41:48 -0700 (Tue, 29 May 2007) | 2 lines Mark None, True, False as keywords. ................ r55673 | neal.norwitz | 2007-05-29 23:28:25 -0700 (Tue, 29 May 2007) | 3 lines Get the dis module working on modules again after changing dicts to not return lists and also new-style classes. Add a test. ................ r55674 | neal.norwitz | 2007-05-29 23:35:45 -0700 (Tue, 29 May 2007) | 1 line Umm, it helps to add the module that the test uses ................ r55675 | neal.norwitz | 2007-05-29 23:53:05 -0700 (Tue, 29 May 2007) | 4 lines Try to fix up all the other places that were assigning to True/False. There's at least one more problem in test.test_xmlrpc. I have other changes in that file and that should be fixed soon (I hope). ................ r55679 | neal.norwitz | 2007-05-30 00:31:55 -0700 (Wed, 30 May 2007) | 1 line Fix up another place that was assigning to True/False. ................ r55688 | brett.cannon | 2007-05-30 14:19:47 -0700 (Wed, 30 May 2007) | 2 lines Ditch MimeWriter. ................ r55692 | brett.cannon | 2007-05-30 14:52:00 -0700 (Wed, 30 May 2007) | 2 lines Remove the mimify module. ................ r55707 | guido.van.rossum | 2007-05-31 05:08:45 -0700 (Thu, 31 May 2007) | 2 lines Backport the addition of show_code() to dis.py -- it's too handy. ................ r55708 | guido.van.rossum | 2007-05-31 06:22:57 -0700 (Thu, 31 May 2007) | 7 lines Fix a fairly long-standing bug in the check for assignment to None (and other keywords, these days). In 2.5, you could write foo(None=1) without getting a SyntaxError (although foo()'s definition would have to use **kwds to avoid getting a runtime error complaining about an unknown keyword of course). This ought to be backported to 2.5.2 or at least 2.6. ................ r55724 | brett.cannon | 2007-05-31 19:32:41 -0700 (Thu, 31 May 2007) | 2 lines Remove the cfmfile. ................ r55727 | neal.norwitz | 2007-05-31 22:19:44 -0700 (Thu, 31 May 2007) | 1 line Remove reload() builtin. ................ r55729 | neal.norwitz | 2007-05-31 22:51:30 -0700 (Thu, 31 May 2007) | 59 lines Merged revisions 55636-55728 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r55637 | georg.brandl | 2007-05-29 00:16:47 -0700 (Tue, 29 May 2007) | 2 lines Fix rst markup. ........ r55638 | neal.norwitz | 2007-05-29 00:51:39 -0700 (Tue, 29 May 2007) | 1 line Fix typo in doc ........ r55671 | neal.norwitz | 2007-05-29 21:53:41 -0700 (Tue, 29 May 2007) | 1 line Fix indentation (whitespace only). ........ r55676 | thomas.heller | 2007-05-29 23:58:30 -0700 (Tue, 29 May 2007) | 1 line Fix compiler warnings. ........ r55677 | thomas.heller | 2007-05-30 00:01:25 -0700 (Wed, 30 May 2007) | 2 lines Correct the name of a field in the WIN32_FIND_DATAA and WIN32_FIND_DATAW structures. Closes bug #1726026. ........ r55686 | brett.cannon | 2007-05-30 13:46:26 -0700 (Wed, 30 May 2007) | 2 lines Have MimeWriter raise a DeprecationWarning as per PEP 4 and its documentation. ........ r55690 | brett.cannon | 2007-05-30 14:48:58 -0700 (Wed, 30 May 2007) | 3 lines Have mimify raise a DeprecationWarning. The docs and PEP 4 have listed the module as deprecated for a while. ........ r55696 | brett.cannon | 2007-05-30 15:24:28 -0700 (Wed, 30 May 2007) | 2 lines Have md5 raise a DeprecationWarning as per PEP 4. ........ r55705 | neal.norwitz | 2007-05-30 21:14:22 -0700 (Wed, 30 May 2007) | 1 line Add some spaces in the example code. ........ r55716 | brett.cannon | 2007-05-31 12:20:00 -0700 (Thu, 31 May 2007) | 2 lines Have the sha module raise a DeprecationWarning as specified in PEP 4. ........ r55719 | brett.cannon | 2007-05-31 12:40:42 -0700 (Thu, 31 May 2007) | 2 lines Cause buildtools to raise a DeprecationWarning. ........ r55721 | brett.cannon | 2007-05-31 13:01:11 -0700 (Thu, 31 May 2007) | 2 lines Have cfmfile raise a DeprecationWarning as per PEP 4. ........ r55726 | neal.norwitz | 2007-05-31 21:56:47 -0700 (Thu, 31 May 2007) | 1 line Mail if there is an installation failure. ........ ................ r55730 | neal.norwitz | 2007-05-31 23:22:07 -0700 (Thu, 31 May 2007) | 2 lines Remove the code that was missed in rev 55303. ................ r55738 | neal.norwitz | 2007-06-01 19:10:43 -0700 (Fri, 01 Jun 2007) | 1 line Fix doc breakage ................ r55741 | neal.norwitz | 2007-06-02 00:41:58 -0700 (Sat, 02 Jun 2007) | 1 line Remove timing module (plus some remnants of other modules). ................ r55742 | neal.norwitz | 2007-06-02 00:51:44 -0700 (Sat, 02 Jun 2007) | 1 line Remove posixfile module (plus some remnants of other modules). ................ r55744 | neal.norwitz | 2007-06-02 10:18:56 -0700 (Sat, 02 Jun 2007) | 1 line Fix doc breakage. ................ r55745 | neal.norwitz | 2007-06-02 11:32:16 -0700 (Sat, 02 Jun 2007) | 1 line Make a whatsnew 3.0 template. ................ r55754 | neal.norwitz | 2007-06-03 23:24:18 -0700 (Sun, 03 Jun 2007) | 1 line SF #1730441, os._execvpe raises UnboundLocal due to new try/except semantics ................ r55755 | neal.norwitz | 2007-06-03 23:26:00 -0700 (Sun, 03 Jun 2007) | 1 line Get rid of extra whitespace ................ r55794 | guido.van.rossum | 2007-06-06 15:29:22 -0700 (Wed, 06 Jun 2007) | 3 lines Make this compile in GCC 2.96, which does not allow interspersing declarations and code. ................
2007-06-06 20:52:48 -03:00
\documentclass{howto}
\usepackage{distutils}
% $Id: whatsnew26.tex 55506 2007-05-22 07:43:29Z neal.norwitz $
% Rules for maintenance:
%
% * Anyone can add text to this document. Do not spend very much time
% on the wording of your changes, because your text will probably
% get rewritten to some degree.
%
% * The maintainer will go through Misc/NEWS periodically and add
% changes; it's therefore more important to add your changes to
% Misc/NEWS than to this file.
%
% * This is not a complete list of every single change; completeness
% is the purpose of Misc/NEWS. Some changes I consider too small
% or esoteric to include. If such a change is added to the text,
% I'll just remove it. (This is another reason you shouldn't spend
% too much time on writing your addition.)
%
% * If you want to draw your new text to the attention of the
% maintainer, add 'XXX' to the beginning of the paragraph or
% section.
%
% * It's OK to just add a fragmentary note about a change. For
% example: "XXX Describe the transmogrify() function added to the
% socket module." The maintainer will research the change and
% write the necessary text.
%
% * You can comment out your additions if you like, but it's not
% necessary (especially when a final release is some months away).
%
% * 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:
%
% % Patch 12345
% XXX Describe the transmogrify() function added to the socket
% module.
% (Contributed by P.Y. Developer.)
%
% This saves the maintainer the effort of going through the SVN log
% when researching a change.
\title{What's New in Python 3.0}
\release{0.0}
\author{A.M. Kuchling}
\authoraddress{\email{amk@amk.ca}}
\begin{document}
\maketitle
\tableofcontents
This article explains the new features in Python 3.0. No release date
for Python 3.0 has been set; it will probably be released in mid 2008.
% Compare with previous release in 2 - 3 sentences here.
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 3.0.
% add hyperlink when the documentation becomes available online.
If you want to understand the complete implementation and design
rationale, refer to the PEP for a particular new feature.
%======================================================================
% Large, PEP-level features and changes should be described here.
% Should there be a new section here for 3k migration?
% Or perhaps a more general section describing module changes/deprecation?
% sets module deprecated
%======================================================================
\section{Other Language Changes}
Here are all of the changes that Python 2.6 makes to the core Python
language.
\begin{itemize}
\item Detailed changes are listed here.
\end{itemize}
%======================================================================
\subsection{Optimizations}
\begin{itemize}
\item Detailed changes are listed here.
\end{itemize}
The net result of the 3.0 optimizations is that Python 3.0 runs the
pystone benchmark around XX\% slower than Python 2.6.
%======================================================================
\section{New, Improved, and Deprecated Modules}
As usual, Python's standard library received a number of enhancements and
bug fixes. Here's a partial list of the most notable changes, sorted
alphabetically by module name. Consult the
\file{Misc/NEWS} file in the source tree for a more
complete list of changes, or look through the CVS logs for all the
details.
\begin{itemize}
\item Detailed changes are listed here.
\end{itemize}
%======================================================================
% whole new modules get described in \subsections here
% ======================================================================
\section{Build and C API Changes}
Changes to Python's build process and to the C API include:
\begin{itemize}
\item Detailed changes are listed here.
\end{itemize}
%======================================================================
\subsection{Port-Specific Changes}
Platform-specific changes go here.
%======================================================================
\section{Other Changes and Fixes \label{section-other}}
As usual, there were a bunch of other improvements and bugfixes
scattered throughout the source tree. A search through the change
logs finds there were XXX patches applied and YYY bugs fixed between
Python 2.6 and 3.0. Both figures are likely to be underestimates.
Some of the more notable changes are:
\begin{itemize}
\item Details go here.
\end{itemize}
%======================================================================
\section{Porting to Python 3.0}
This section lists previously described changes that may require
changes to your code:
\begin{itemize}
\item Everything is all in the details!
\end{itemize}
%======================================================================
\section{Acknowledgements \label{acks}}
The author would like to thank the following people for offering
suggestions, corrections and assistance with various drafts of this
article: .
\end{document}