From: Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com>
Date: Thu, 21 May 2020 04:21:02 +0000 (-0700)
Subject: bpo-40651: Improve LRU recipe in the OrderedDict documentation  (GH-GH-20139) (GH... 
X-Git-Tag: v3.8.4rc1~105
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=d88f0aa8e24ea7562f2e04833f46d8526e846334;p=thirdparty%2FPython%2Fcpython.git

bpo-40651: Improve LRU recipe in the OrderedDict documentation  (GH-GH-20139) (GH-20167)
---

diff --git a/Doc/library/collections.rst b/Doc/library/collections.rst
index 8dcf9451d72b..d4297166597b 100644
--- a/Doc/library/collections.rst
+++ b/Doc/library/collections.rst
@@ -1150,6 +1150,8 @@ variants of :func:`functools.lru_cache`::
             return value
 
         def __setitem__(self, key, value):
+            if key in self:
+                self.move_to_end(key)
             super().__setitem__(key, value)
             if len(self) > self.maxsize:
                 oldest = next(iter(self))