Lucida GrandeHi. I have a list of objects from a folder that I obtained using objectValues and then batched. I wrote a short script to format the results of size so I get nice kB, MB, etc. My ZPT to deal with this formating looks like this: ...tal:define="file_size item/size" tal:content="python:here.getFileSize(file_size)">##.# kB< This works fine for getting data from using objectValues. Now, I am modifying my CMF folder_contents template. CMF folder_contents pulls its content together using items python: here.listFolderContents(contentFilter=filter) I am batching on item. First off, I can't get size using item/size without an attribute error as follows: * Module Products.PageTemplates.Expressions, line 198, in __call__ * Module Products.PageTemplates.Expressions, line 201, in __call__ * Module Products.PageTemplates.Expressions, line 189, in _eval * Module Products.PageTemplates.Expressions, line 145, in _eval * Module Products.PageTemplates.Expressions, line 354, in restrictedTraverse AttributeError: size but I can get the size information using item/get_size. Now if I attempt to gather item/get_size in a variable like this: ...tal:define="file_size item/get_size" tal:content="python:here.getFileSize(file_size)">##.# kB< it throws the following key error: * Module Products.PageTemplates.TALES, line 221, in evaluate * Module Products.PageTemplates.Expressions, line 198, in __call__ * Module Products.PageTemplates.Expressions, line 201, in __call__ * Module Products.PageTemplates.Expressions, line 189, in _eval * Module Products.PageTemplates.Expressions, line 145, in _eval * Module Products.PageTemplates.Expressions, line 347, in restrictedTraverse * Module OFS.ObjectManager, line 663, in __getitem__ KeyError: 'get_size' My function in not causing any trouble. If I replace the tal:content section with tal:content="file_size", I will get the same error. So two questions: 1) Why I can't put the data in a variable in the same way I had done previously? 2) Is there another way I can get the size of the object here. Why doesn't item/size return the size in this case? Am I not still dealing with a list of objects from the folder? I should say that I am using a condition on the items since there are folders and files in a folder. So if it is a folder it will return a structure statement to put a   in my table. So I am only trying to get the size on items other than folders. The full line looks like this: <##.# kB< Regards, David