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Python开发者(id:PythonCoder)编译整理
Python 官网于 6 月 27 日发布 v3.7.0 的更新说明。v3.7.0 是最近比较大的更新。此次发布包含了诸多新特性和优化。
官网对新特性和优化的汇总:
新语法特性:
向后不兼容的语法更改:
新的库模块:
新的 built-in 特性:
Python 数据模型改进:
PEP 562, customization of access to module attributes.(访问模块属性,可以定制了)
PEP 560, core support for typing module and generic types.
the insertion-order preservation nature of dict objects has been declared to be an official part of the Python language spec.
标准库中的重要改进:
The asyncio
module has received new features, significant usability and performance improvements. (asyncio 模块已经获得了新功能,显着的可用性和性能改进。)
The time
module gained support for functions with nanosecond resolution. (time 模块获得了对纳秒级分辨率功能的支持)
CPython 实现的改进:
Avoiding the use of ASCII as a default text encoding: 取消 ASCII 作为默认文本编码
PEP 538, legacy C locale coercion
PEP 540, forced UTF-8 runtime mode
PEP 552, deterministic .pycs
the new development runtime mode
PEP 565, improved DeprecationWarning
handling
C API 改进:
文档改进:
其他详情,请参阅 Python 官网说明:
https://docs.python.org/3.7/whatsnew/3.7.html
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