From 5df36af8b751d8acb168ad3b2fff3169dbae9ceb Mon Sep 17 00:00:00 2001 From: Yury Selivanov Date: Tue, 4 Aug 2015 12:46:57 -0400 Subject: [PATCH] whatsnew/3.5: Briefly mention PEP 484 --- Doc/whatsnew/3.5.rst | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/Doc/whatsnew/3.5.rst b/Doc/whatsnew/3.5.rst index 2c74afecf2c..76d57f7c768 100644 --- a/Doc/whatsnew/3.5.rst +++ b/Doc/whatsnew/3.5.rst @@ -246,6 +246,28 @@ In dictionaries, later values will always override earlier ones:: :pep:`448` -- Additional Unpacking Generalizations +PEP 484 - Type Hints +-------------------- + +This PEP introduces a provisional module to provide these standard +definitions and tools, along with some conventions for situations +where annotations are not available. + +For example, here is a simple function whose argument and return type +are declared in the annotations:: + + def greeting(name: str) -> str: + return 'Hello ' + name + +The type system supports unions, generic types, and a special type +named ``Any`` which is consistent with (i.e. assignable to and from) all +types. + +.. seealso:: + + :pep:`484` -- Type Hints + + PEP 471 - os.scandir() function -- a better and faster directory iterator -------------------------------------------------------------------------