From: Raymond Hettinger Date: Tue, 17 Jul 2018 00:20:15 +0000 (-0700) Subject: bpo-34123: Fix missed documentation update for dict.popitem(). (GH-8292) X-Git-Tag: v3.8.0a1~1366 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=01b7d5898262dbe0e9edb321b3be9a34da196f6f;p=thirdparty%2FPython%2Fcpython.git bpo-34123: Fix missed documentation update for dict.popitem(). (GH-8292) --- diff --git a/Doc/library/stdtypes.rst b/Doc/library/stdtypes.rst index c9e3a94786c2..66467ac40c77 100644 --- a/Doc/library/stdtypes.rst +++ b/Doc/library/stdtypes.rst @@ -4220,12 +4220,18 @@ pairs within braces, for example: ``{'jack': 4098, 'sjoerd': 4127}`` or ``{4098: .. method:: popitem() - Remove and return an arbitrary ``(key, value)`` pair from the dictionary. + Remove and return a ``(key, value)`` pair from the dictionary. + Pairs are returned in :abbr:`LIFO (last-in, first-out)` order. :meth:`popitem` is useful to destructively iterate over a dictionary, as often used in set algorithms. If the dictionary is empty, calling :meth:`popitem` raises a :exc:`KeyError`. + .. versionchanged:: 3.7 + + LIFO order is now guaranteed. In prior versions, :meth:`popitem` would + return an arbitrary key/value pair. + .. method:: setdefault(key[, default]) If *key* is in the dictionary, return its value. If not, insert *key*