From 7ec81af7297f55081d2cb4721394ce1aedb0799b Mon Sep 17 00:00:00 2001
From: Armin Ronacher <armin.ronacher@active-4.com>
Date: Sun, 18 Mar 2007 21:09:19 +0100
Subject: [PATCH] [svn] __radd__ and co now works for Undefined too

--HG--
branch : trunk
---
 jinja/datastructure.py | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/jinja/datastructure.py b/jinja/datastructure.py
index 7da8813..2b53a58 100644
--- a/jinja/datastructure.py
+++ b/jinja/datastructure.py
@@ -49,9 +49,8 @@ class UndefinedType(object):
             raise TypeError('cannot create %r instances' %
                             self.__class__.__name__)
 
-    def __add__(self, other):
-        return other
-    __sub__ = __mul__ = __div__ = __add__
+    __sub__ = __mul__ = __div__ = __rsub__ = __rmul__ = __div__ = __radd__ = \
+    __add__ = lambda self, other: other
 
     def __getitem__(self, arg):
         return self
-- 
2.26.2