Python 3.3版发布

Python is a programming language that lets you work more quickly and integrate your systems more effectively. You can learn to use Python and see almost immediate gains in productivity and lower maintenance costs.

Python runs on Windows, Linux/Unix, Mac OS X, and has been ported to the Java and .NET virtual machines.

Python发布了v3.3版。主要新特性包括：新的语法功能，如 generator delegation 的新yield from表达式；新的库模块，包括faulthandler（调试崩溃），ipaddress，lzma，unittest.mock和venv；重做了I/O exception hierarchy，重写了 import machinery；默认哈希随机化，等等。

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