From 9945ab4f67b141d6efec3f75893a4b5e72b76162 Mon Sep 17 00:00:00 2001
From: Stephen Diehl <stephen.m.diehl@gmail.com>
Date: Tue, 15 May 2012 15:13:17 -0400
Subject: [PATCH] Changed setattr method.

---
 zipline/utils/protocol_utils.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/zipline/utils/protocol_utils.py b/zipline/utils/protocol_utils.py
index 621d7ab9..376fc8c7 100644
--- a/zipline/utils/protocol_utils.py
+++ b/zipline/utils/protocol_utils.py
@@ -51,8 +51,8 @@ class ndict(MutableMapping):
     # -----------------
 
     def __setattr__(self, key, value):
-        if 'ndict' in key or key == 'cls':
-            MutableMapping.__setattr__(self, key, value)
+        if '_ndict' in key or key == 'cls':
+            self.__dict__[key] = value
         else:
             self.__internal[key] = value
         return value