# HG changeset patch
# User Pierre-Yves David <pierre-yves.david@logilab.fr>
# Date 1260969541 -3600
# Node ID 637170c1764362e52ec46d85d358d6f097960d66
# Parent  46ddd27a4ca4a4140e4ca5112d283a7bed285385
improve error message

diff -r 46ddd27a4ca4 -r 637170c17643 view.py
--- a/view.py	Fri Dec 18 14:28:29 2009 +0100
+++ b/view.py	Wed Dec 16 14:19:01 2009 +0100
@@ -180,7 +180,7 @@
         """
         rset = self.cw_rset
         if rset is None:
-            raise NotImplementedError, self
+            raise NotImplementedError, (self, "an rset is required")
         wrap = self.templatable and len(rset) > 1 and self.add_div_section
         # XXX propagate self.extra_kwars?
         for i in xrange(len(rset)):