attr must be a string type

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@16778 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Form/SelectionTool.py

@@ -495,7 +495,7 @@ class SelectionTool( BaseTool, UniqueObject, SimpleItem ):
         default_stats = [' '] * 6
       selection = self.getSelectionFor(selection_name, REQUEST=REQUEST)
       if selection is not None:
-        return getattr(selection, stats, default_stats)
+        return getattr(selection, 'stats', default_stats)
       return default_stats