commit 911da479960a72db08154b237e8f5fd4b5ace2f4
author Raymond Hettinger <python@rcn.com> Tue Mar 22 13:20:59 2011 -0700
committer Raymond Hettinger <python@rcn.com> Tue Mar 22 13:20:59 2011 -0700
tree 997b5e811b48397ede18570ca8854fcb0223b997
parent 7250730afc4dbf570d5c41f56710527ed93ba071

Issue #11628: cmp_to_key should use__slots__.

Lib/functools.py

diff --git a/Lib/functools.py b/Lib/functools.py
index 01889cb..53680b8 100644
--- a/Lib/functools.py
+++ b/Lib/functools.py
@@ -80,6 +80,7 @@
 def cmp_to_key(mycmp):
     """Convert a cmp= function into a key= function"""
     class K(object):
+        __slots__ = ['obj']
         def __init__(self, obj, *args):
             self.obj = obj
         def __lt__(self, other):