From af7d2c4917adf68def53a25919f8aed9a7ec65ac Mon Sep 17 00:00:00 2001 From: R David Murray Date: Wed, 12 Feb 2014 13:00:36 -0500 Subject: whatsnew: LOAD_CLASSDEREF, -X showrefcount --- Doc/reference/datamodel.rst | 2 ++ Doc/whatsnew/3.4.rst | 8 ++++++++ 2 files changed, 10 insertions(+) diff --git a/Doc/reference/datamodel.rst b/Doc/reference/datamodel.rst index b2aa98b..597e04e 100644 --- a/Doc/reference/datamodel.rst +++ b/Doc/reference/datamodel.rst @@ -1647,6 +1647,8 @@ of these candidate metaclasses. If none of the candidate metaclasses meets that criterion, then the class definition will fail with ``TypeError``. +.. _prepare: + Preparing the class namespace ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ diff --git a/Doc/whatsnew/3.4.rst b/Doc/whatsnew/3.4.rst index dd7ec26..17d2e9e 100644 --- a/Doc/whatsnew/3.4.rst +++ b/Doc/whatsnew/3.4.rst @@ -1455,6 +1455,10 @@ Other Improvements now works correctly (previously it silently returned the first python module in the file). (Contributed by Václav Šmilauer in :issue:`16421`.) +* A new opcode, :opcode:`LOAD_CLASSDEREF`, has been added to fix a bug in the + loading of free variables in class bodies that could be triggered by certain + uses of :ref:`__prepare__ `. (Contributed by Benjamin Peterson in + :issue:`17853`.) Significant Optimizations @@ -1650,6 +1654,10 @@ Changes in 'python' command behavior how :envvar:`PATH` works. The behavior now conforms to the posix convention for :envvar:`PATH`. +* The [X refs, Y blocks] output of a debug (``--with-pydebug``) build of the + CPython interpreter is now off by default. It can be re-enabled using the + ``-X showrefcount`` option. (Contributed by Ezio Melotti in :issue:`17323`.) + Changes in the Python API ------------------------- -- cgit v0.12