diff options
Diffstat (limited to 'Doc/whatsnew/3.6.rst')
| -rw-r--r-- | Doc/whatsnew/3.6.rst | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/Doc/whatsnew/3.6.rst b/Doc/whatsnew/3.6.rst index 0d53513..45bd7d9 100644 --- a/Doc/whatsnew/3.6.rst +++ b/Doc/whatsnew/3.6.rst @@ -759,6 +759,15 @@ Changes in the Python API <keyword-only_parameter>`. (Contributed by Serhiy Storchaka in :issue:`18726`.) +* As part of :pep:`487`, the handling of keyword arguments passed to + :class:`type` (other than the metaclass hint, ``metaclass``) is now + consistently delegated to :meth:`object.__init_subclass__`. This means that + :meth:`type.__new__` and :meth:`type.__init__` both now accept arbitrary + keyword arguments, but :meth:`object.__init_subclass__` (which is called from + :meth:`type.__new__`) will reject them by default. Custom metaclasses + accepting additional keyword arguments will need to adjust their calls to + :meth:`type.__new__` (whether direct or via :class:`super`) accordingly. + Changes in the C API -------------------- |