From 7efc526e5cfb929a79c192ac2dcf7eb78d3a4401 Mon Sep 17 00:00:00 2001 From: Victor Stinner Date: Sat, 15 Jun 2019 03:24:41 +0200 Subject: [PATCH] bpo-36707: Document "m" removal from sys.abiflags (GH-14090) --- Doc/library/sys.rst | 4 ++++ Doc/whatsnew/3.8.rst | 16 ++++++++++++++++ 2 files changed, 20 insertions(+) diff --git a/Doc/library/sys.rst b/Doc/library/sys.rst index 817c3f1e56..c073431c89 100644 --- a/Doc/library/sys.rst +++ b/Doc/library/sys.rst @@ -16,6 +16,10 @@ always available. On POSIX systems where Python was built with the standard ``configure`` script, this contains the ABI flags as specified by :pep:`3149`. + .. versionchanged:: 3.8 + Default flags became an empty string (``m`` flag for pymalloc has been + removed). + .. versionadded:: 3.2 diff --git a/Doc/whatsnew/3.8.rst b/Doc/whatsnew/3.8.rst index b63bcef5de..cc3fb76e9c 100644 --- a/Doc/whatsnew/3.8.rst +++ b/Doc/whatsnew/3.8.rst @@ -955,6 +955,22 @@ Optimizations Build and C API Changes ======================= +* Default :data:`sys.abiflags` became an empty string: the ``m`` flag for + pymalloc became useless (builds with and without pymalloc are ABI compatible) + and so has been removed. (Contributed by Victor Stinner in :issue:`36707`.) + + Example of changes: + + * Only ``python3.8`` program is installed, ``python3.8m`` program is gone. + * Only ``python3.8-config`` script is installed, ``python3.8m-config`` script + is gone. + * The ``m`` flag has been removed from the suffix of dynamic library + filenames: extension modules in the standard library as well as those + produced and installed by third-party packages, like those downloaded from + PyPI. On Linux, for example, the Python 3.7 suffix + ``.cpython-37m-x86_64-linux-gnu.so`` became + ``.cpython-38-x86_64-linux-gnu.so`` in Python 3.8. + * The header files have been reorganized to better separate the different kinds of APIs: -- 2.40.0