[Python-checkins] cpython (merge 3.2 -> default): Issue #11628: cmp_to_key should use __slots__.

[raymond.hettinger]

http://hg.python.org/cpython/rev/2e5e5d515c09
changeset:   68825:2e5e5d515c09
parent:      68823:15f9eca5e956
parent:      68824:97799a54728e
user:        Raymond Hettinger <python at rcn.com>
date:        Mon Mar 21 17:54:04 2011 -0700
summary:
  Issue #11628: cmp_to_key should use __slots__.

files:
  Lib/functools.py
  Misc/NEWS

diff --git a/Lib/functools.py b/Lib/functools.py
--- a/Lib/functools.py
+++ b/Lib/functools.py
@@ -96,6 +96,7 @@
 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):
diff --git a/Misc/NEWS b/Misc/NEWS
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -84,6 +84,8 @@
 - Issue #11371: Mark getopt error messages as localizable.  Patch by Filip
   Gruszczyński.
 
+- Issue #11628: cmp_to_key generated class should use __slots__
+
 - Issue #5537: Fix time2isoz() and time2netscape() functions of
   httplib.cookiejar for expiration year greater than 2038 on 32-bit systems.
 

-- 
Repository URL: http://hg.python.org/cpython