Python 3.5b1 已经发布,Python 3.5 正式版已经不远啦!Python 3.5 相比 Python 3.4 详细改进请看 Misc/NEWS。 Python 3.5 发布计划: 3.5.0 alpha 1: February 8, 2015 3.5.0 alpha 2: March 9, 2015 3.5.0 alpha 3: March 29, 2015 3.5.0 alpha 4: April 19, 2015 3.5.0 beta 1: May 24, 2015 3.5.0 beta 2: May 31, 2015 3.5.0 beta 3: July 5, 2015 3.5.0 beta 4: July 26, 2015 3.5.0 candidate 1: August 9, 2015 3.5.0 candidate 2: August 23, 2015 3.5.0 candidate 3: September 6, 2015 3.5.0 final: September 13, 2015 (Beta 1 已经是 "feature freeze" 状态,往后版本不会再添加新特性) 值得关注的新特性 新语法特性: PEP 465 新矩阵乘法运算符: a @ b. PEP 492 异步协同和 await 语法 新模块: zipapp: 改进 Python ZIP 应用支持 (PEP 441). 新内置特性: bytes % args, bytearray % args: PEP 461 - Adding % formatting to bytes and bytearray b'\xf0\x9f\x90\x8d'.hex(), bytearray(b'\xf0\x9f\x90\x8d').hex(),memoryview(b'\xf0\x9f\x90\x8d').hex(): issue 9951 - A hex method has been added to bytes, bytearray, and memoryview. 改进: When the LC_TYPE locale is the POSIX locale (C locale),sys.stdin and sys.stdout are now using thesurrogateescape error handler, instead of the strict error handler (issue 19977). PEP 488, the elimination of .pyo files. PEP 489, multi-phase initialization of extension modules. 值得关注的库模块改进: collections.OrderedDict 已经用 C 实现 可以传递字节到 tempfile 模块的 API,然后返回字节的临时路径名而不是 str 的临时路径名 Python 3.5 详细改进说明请看这里。 Python 3.5 新特性预览下载地址