From: alclarks <57201106+alclarks@users.noreply.github.com> Date: Sat, 25 Jan 2020 18:49:58 +0000 (+0000) Subject: bpo-15243: Document __prepare__ as classmethod (GH-17124) X-Git-Tag: v3.9.0a4~218 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=7de617455ed788e6730c40cf854c4b72b0432194;p=thirdparty%2FPython%2Fcpython.git bpo-15243: Document __prepare__ as classmethod (GH-17124) --- diff --git a/Doc/reference/datamodel.rst b/Doc/reference/datamodel.rst index 1442fbeb33d7..9520f824287f 100644 --- a/Doc/reference/datamodel.rst +++ b/Doc/reference/datamodel.rst @@ -1945,7 +1945,8 @@ Preparing the class namespace Once the appropriate metaclass has been identified, then the class namespace is prepared. If the metaclass has a ``__prepare__`` attribute, it is called as ``namespace = metaclass.__prepare__(name, bases, **kwds)`` (where the -additional keyword arguments, if any, come from the class definition). +additional keyword arguments, if any, come from the class definition). The +``__prepare__`` method should be implemented as a :func:`classmethod`. If the metaclass has no ``__prepare__`` attribute, then the class namespace is initialised as an empty ordered mapping.