# HG changeset patch
# User Goffi <goffi@goffi.org>
# Date 1424793268 -3600
# Node ID 91e72da1d093af857fe9ad1a91b0b7a6a30162fe
# Parent  18cd46a264e91979a778044f1a8e1d93e4c43b86
core (persistent dict): added setdefault method

diff -r 18cd46a264e9 -r 91e72da1d093 src/memory/persistent.py
--- a/src/memory/persistent.py	Tue Feb 24 16:52:44 2015 +0100
+++ b/src/memory/persistent.py	Tue Feb 24 16:54:28 2015 +0100
@@ -118,6 +118,13 @@
     def get(self, key, default=None):
         return self._cache.get(key, default)
 
+    def setdefault(self, key, default):
+        try:
+            return self._cache[key]
+        except:
+            self.__setitem__(key, default)
+            return default
+
     def force(self, name):
         """Force saving of an attribute to storage
         @return: deferred fired when data is actually saved"""