diff -Nru graphviz-2.26.3/debian/changelog graphviz-2.26.3/debian/changelog
--- graphviz-2.26.3/debian/changelog	2012-03-14 23:18:03.000000000 +0000
+++ graphviz-2.26.3/debian/changelog	2012-05-05 22:03:50.000000000 +0100
@@ -1,3 +1,12 @@
+graphviz (2.26.3-10+rpi1) wheezy; urgency=low
+
+  * Patch by David Claughton taken from 
+    http://anonscm.debian.org/gitweb/?p=collab-maint/graphviz.git;a=patch;h=5d2a99f7bc690eb349c2f5f8e264ba24db44752e
+  * Remove reference to python 2.5 which is no longer available in sid
+    (Closes: #669517) 
+
+ -- Peter Michael Green <plugwash@p10link.net>  Wed, 02 May 2012 21:53:08 +0100
+
 graphviz (2.26.3-10) unstable; urgency=low
 
   * Fixes for compatibility with Automake 1.11.2 (Closes: #661909)
diff -Nru graphviz-2.26.3/debian/libgv-python.install graphviz-2.26.3/debian/libgv-python.install
--- graphviz-2.26.3/debian/libgv-python.install	2011-05-18 20:41:03.000000000 +0100
+++ graphviz-2.26.3/debian/libgv-python.install	2012-05-05 22:01:37.000000000 +0100
@@ -1,5 +1,4 @@
 usr/lib/graphviz/python
-usr/lib/graphviz/python25
 usr/lib/graphviz/python26
 usr/lib/graphviz/python27
 usr/share/man/man3/gv.3python