From 9ae90c3869273c2cfed8ad285325b458c2203f64 Mon Sep 17 00:00:00 2001
From: Valentin Lorentz <progval@progval.net>
Date: Sat, 4 Aug 2012 17:46:28 +0200
Subject: [PATCH] Make utils.structures.CacheDict subclass
 collections.MutableMapping instead of deprecated UserDict.DictMixin.

---
 src/utils/structures.py | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/utils/structures.py b/src/utils/structures.py
index 5702836fb..3eb0afdd2 100644
--- a/src/utils/structures.py
+++ b/src/utils/structures.py
@@ -33,7 +33,7 @@ Data structures for Python.
 
 import time
 import types
-import UserDict
+import collections
 from itertools import imap
 
 class RingBuffer(object):
@@ -418,7 +418,7 @@ class MultiSet(object):
         return elt in self.d
 
 
-class CacheDict(UserDict.DictMixin):
+class CacheDict(collections.MutableMapping):
     def __init__(self, max, **kwargs):
         self.d = dict(**kwargs)
         self.max = max
@@ -443,5 +443,8 @@ class CacheDict(UserDict.DictMixin):
     def __iter__(self):
         return iter(self.d)
 
+    def __len__(self):
+        return len(self.d)
+
 
 # vim:set shiftwidth=4 softtabstop=4 expandtab textwidth=79: