Python 3.7 的第三个 beta 预览版 Python 3.7.0b3 发布

Python 3.7.0b3 发布，此版本为 Python 3.7 的 beta 预览版。

Python 3.7 的主要特性：

• PEP 538, Coercing the legacy C locale to a UTF-8 based locale
• PEP 539, A New C-API for Thread-Local Storage in CPython
• PEP 540, UTF-8 mode
• PEP 552, Deterministic pyc
• PEP 553, Built-in breakpoint()
• PEP 557, Data Classes
• PEP 560, Core support for typing module and generic types
• PEP 562, Module __getattr__ and __dir__
• PEP 563, Postponed Evaluation of Annotations
• PEP 564, Time functions with nanosecond resolution
• PEP 565, Show DeprecationWarning in __main__
• PEP 567, Context Variables

具体信息见公布公告

转自 https://www.oschina.net/news/94744/python-3-7-0b3-released