Python 2.7 Release Candidate 2

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Python 2.7 RC2 发布日期为2010年6月20日，此次更新修复了多个核心及内置功能的问题，包括处理-m命令行选项时对sys.argv[0]的修改导致的副作用、big endian UTF-32数据解码可能导致的崩溃、unicode/str.format()函数在索引过大时抛出ValueError等。此外，还改进了Windows环境下Visual Studio 2008的查找机制，修复了ctypes在调用外部函数前后检查堆栈的问题。

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下载:Python 2.7 RC2

Python 2.7 Release Candidate 2

What's New in Python 2.7 release candidate 2?

=============================================



*Release date: 2010-06-20*



Core and Builtins

-----------------



- Issue #8202: Previous change to ``sys.argv[0]`` handling for -m command line

  option reverted due to unintended side effects on handling of ``sys.path``.

  See tracker issue for details.



- Issue #8941: decoding big endian UTF-32 data in UCS-2 builds could crash

  the interpreter with characters outside the Basic Multilingual Plane

  (higher than 0x10000).



- In the unicode/str.format(), raise a ValueError when indexes to arguments are

  too large.



Build

-----



- Issue #8854: Fix finding Visual Studio 2008 on Windows x64.



Library

-------



- Issue #8959: fix regression caused by using unmodified libffi

  library on Windows.  ctypes does now again check the stack before

  and after calling foreign functions.



- Issue #8720: fix regression caused by fix for #4050 by making getsourcefile

  smart enough to find source files in the linecache.



- Issue #8986: math.erfc was incorrectly raising OverflowError for

  values between -27.3 and -30.0 on some platforms.



- Issue #8924: logging: Improved error handling for Unicode in exception text.



- Issue #8948: cleanup functions and class / module setups and teardowns are

  now honored in unittest debug methods.



Documentation

-------------



- Issues #8909: Added the size of the bitmap used in the installer created by

  distutils' bdist_wininst. Patch by Anatoly Techtonik.



Misc

----



- Issue #8362: Add maintainers.rst: list of module maintainers