| \documentclass{howto} |
| |
| % $Id$ |
| |
| \title{What's New in Python 2.3} |
| \release{0.01} |
| \author{A.M. Kuchling} |
| \authoraddress{\email{akuchlin@mems-exchange.org}} |
| |
| \begin{document} |
| \maketitle |
| \tableofcontents |
| |
| %\section{Introduction \label{intro}} |
| |
| {\large This article is a draft, and is currently up to date for some |
| random version of the CVS tree around March 26 2002. Please send any |
| additions, comments or errata to the author.} |
| |
| This article explains the new features in Python 2.3. The tentative |
| release date of Python 2.3 is currently scheduled for August 30 2002. |
| |
| 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 2.3, |
| such as the |
| \citetitle[http://www.python.org/doc/2.3/lib/lib.html]{Python Library |
| Reference} and the |
| \citetitle[http://www.python.org/doc/2.3/ref/ref.html]{Python |
| Reference Manual}. If you want to understand the complete |
| implementation and design rationale for a change, refer to the PEP for |
| a particular new feature. |
| |
| |
| %====================================================================== |
| \section{New and Improved Modules} |
| |
| arraymodule.c: - add Py_UNICODE arrays |
| - support +=, *= |
| |
| Return enhanced tuples in grpmodule |
| |
| posixmodule: killpg, |
| |
| Expat is now included with the Python source |
| |
| Readline: Add get_history_item, get_current_history_length, and |
| redisplay functions. |
| |
| |
| %====================================================================== |
| \section{Interpreter Changes and Fixes} |
| |
| XXX bug? Change the version string from "2.2+" to "2.3a0". disutils peels off |
| the first 3 characters of this string in several places, so for as long |
| as they remain "2.2" it confuses the heck out of attempts to build 2.3 |
| stuff using distutils. |
| |
| file object can now be subtyped (did this not work before?) |
| |
| yield is now always available |
| |
| This adds the module name and a dot in front of the type name in every |
| type object initializer, except for built-in types (and those that |
| already had this). Note that it touches lots of Mac modules -- I have |
| no way to test these but the changes look right. Apologies if they're |
| not. This also touches the weakref docs, which contains a sample type |
| object initializer. It also touches the mmap test output, because the |
| mmap type's repr is included in that output. It touches object.h to |
| put the correct description in a comment. |
| |
| File objects: Grow the string buffer at a mildly exponential rate for |
| the getc version of get_line. This makes test_bufio finish in 1.7 |
| seconds instead of 57 seconds on my machine (with Py_DEBUG defined). |
| |
| %====================================================================== |
| \section{Other Changes and Fixes} |
| |
| |
| % ====================================================================== |
| \section{C Interface Changes} |
| |
| pymalloc is now enabled by default (also mention debug-mode pymalloc) |
| |
| Memory API reworking |
| |
| PyObject_DelItemString() added |
| |
| PyArg_NoArgs macro is now deprecated |
| |
| Ports: |
| |
| OS/2 EMX port |
| |
| MacOS: Weaklink most toolbox modules, improving backward |
| compatibility. Modules will no longer fail to load if a single routine |
| is missing on the curent OS version, in stead calling the missing |
| routine will raise an exception. Should finally fix 531398. 2.2.1 |
| candidate. Also blacklisted some constants with definitions that |
| were not Python-compatible. |
| |
| Checked in Sean Reifschneider's RPM spec file and patches. Bugfix candidate. |
| |
| |
| %====================================================================== |
| \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: Fred~L. Drake, Jr. |
| |
| \end{document} |
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| |
| |