From 84fd7372b00afa4c55d4b32ca1d6f0c5a35b77df Mon Sep 17 00:00:00 2001
From: Bob Halley <halley@dnspython.org>
Date: Sat, 7 Apr 2012 21:43:32 +0100
Subject: [PATCH] raise ValueError if the argument to node.replace_rdataset()
 is not an rdataset

---
 dns/node.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/dns/node.py b/dns/node.py
index 7625c66d..f480610a 100644
--- a/dns/node.py
+++ b/dns/node.py
@@ -167,6 +167,8 @@ class Node(object):
         at the node, it stores I{replacement} itself.
         """
 
+        if not isinstance(replacement, dns.rdataset.Rdataset):
+            raise ValueError, 'replacement is not an rdataset'
         self.delete_rdataset(replacement.rdclass, replacement.rdtype,
                              replacement.covers)
         self.rdatasets.append(replacement)
-- 
2.47.3