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Python330最新版下载发布

2019-07-14 01:55:36来源:励志吧0次阅读

Python 3.30 最新版下载发布 - Python

在之前发布RC版本获得诸多好评之后,美国时间9月29日,Python 3.3 正式版发布下载,包含大量的改进。

来自Solidot的简介中提到,Python 3.3 的主要新特性包括:新的语法功能,如generatordelegation的新yieldfrom表达式;新的库模块,包括faulthandler(调试崩溃),ipaddress,lzma,ck和venv;重做了I/Oexceptionhierarchy,重写了importmachinery;默认哈希随机化,等等。

Python 3.3正式版的细节改进历史如下:

PEP 380, syntax for delegating to a subgenerator (yield from)

PEP 393, flexible string representation (doing away with the distinction between "wide" and "narrow" Unicode builds)

A C implementation of the "decimal" module, with up to 80x speedup for decimal-heavy applications

The import system (__import__) is based on importlib by default

The new "lzma" module with LZMA/XZ support

PEP 405, virtual environment support in core

PEP 420, namespace package support

PEP 3151, reworking the OS and IO exception hierarchy

PEP 3155, qualified name for classes and functions

PEP 409, suppressing exception context

PEP 414, explicit Unicode literals to help with porting

PEP 418, extended platform-independent clocks in the "time" module

PEP 412, a new key-sharing dictionary implementation that significantly saves memory for object-oriented code

The new "faulthandler" module that helps diagnosing crashes

The new "ck" module

The new "ipaddress" module

A "ainMap" class for linking mappings to a single unit

Wrappers for many more POSIX functions in the "os" and "signal" modules, as well as other useful functions such as "sendfile()"

Hash randomization, introduced in earlier bugfix releases, is now switched on by default

Python 3.3 下载发布官方页面:

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