Fix python 2.5 specific code (Andrew Gillies)

AUTHORS

@@ -46,6 +46,7 @@ Further patches have been submitted by:
   S. Çağlar Onur <caglar-at-pardus-dot-org-dot-tr>
   Claes Strom <cs-at-clabbe-dot-com>
   Mike MacCana <mmaccana-at-au1-dot-ibm-dot-com>
+  Andrew Gillies <anaru-at-main-dot-com>
 
   <...send a patch & get your name here...>
 

src/virtManager/domain.py

@@ -661,11 +661,12 @@ class vmmDomain(gobject.GObject):
         ctx = None
         ret = []
         try:
-            doc = libxml2.parseDoc(self.get_xml())
-            ctx = doc.xpathNewContext()
-            ret = parse_function(ctx)
-        except Exception, e:
-            logging.debug("Error parsing domain xml: %s" % str(e))
+            try:
+                doc = libxml2.parseDoc(self.get_xml())
+                ctx = doc.xpathNewContext()
+                ret = parse_function(ctx)
+            except Exception, e:
+                logging.debug("Error parsing domain xml: %s" % str(e))
         finally:
             if ctx:
                 ctx.xpathFreeContext()