From cd03544dec08d930228438aa2c5ddb3c5644827b Mon Sep 17 00:00:00 2001
From: Morgan Collett <morgan.collett@gmail.com>
Date: Fri, 12 Oct 2007 15:43:11 +0000
Subject: Handle failure to get buddy from handle

---
diff --git a/sugar/presence/activity.py b/sugar/presence/activity.py
index 2ddcd92..6c4a549 100644
--- a/sugar/presence/activity.py
+++ b/sugar/presence/activity.py
@@ -230,8 +230,10 @@ class Activity(gobject.GObject):
         so we can get the buddy without calling PS.
         """
         object_path = self._handle_to_buddy_path.get(handle, None)
-        buddy = self._ps_new_object(object_path)
-        return buddy
+        if object_path:
+            buddy = self._ps_new_object(object_path)
+            return buddy
+        return None
 
     def invite(self, buddy, message, response_cb):
         """Invite the given buddy to join this activity.
--
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