Added a convienence method __len__ for cursors; you can remove if you don't like

svn: r12912

src/gen/db/cursor.py

@@ -106,6 +106,12 @@ class GrampsCursor(object):
         """
         return self.source.stat()['ndata']
 
+    def __len__(self):
+        """
+        Convienence method to work with len(cursor).
+        """
+        return self.get_length()
+        
     def __iter__(self):
         """
         Iterator