Python（[KK] 英语发音： /'paɪθɑn/, [DJ] 英语发音： /ˈpaiθən/），是一种面向对象、直译式计算机程序设计语言，也是一种功能强大而完善的通用型语言，已经具有十多年的发展历史，成熟且稳定。这种语 言具有非常简捷而清晰的语法特点，适合完成各种高层任务，几乎可以在所有的操作系统中运行。目前，基于这种语言的相关技术正在飞速的发展，用户数量 急剧扩大，相关的资源非常多。
下载:Python 2.7 RC2
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