Includes wrong values to error message.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@37321 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/CMFCategory/CategoryTool.py

@@ -634,8 +634,9 @@ class CategoryTool( UniqueObject, Folder, Base ):
       elif isinstance(category_list, (list, tuple)):
         pass
       else:
-        raise TypeError, 'Category must be of string, tuple of string ' \
-                         'or list of string type.'
+        raise TypeError, ('Category must be of string, tuple of string '
+                          'or list of string type. %s %s' %
+                          (base_category_list, category_list))
 
       if isinstance(base_category_list, str):
         base_category_list = (base_category_list, )