Hi, I was able to create a simple ZClass to handle uploads/file attachment. No problem there. Next I want to do the same thing but use python instead with Jeff Rush's Poll product as a template. I'm currently stumped on the following piece of code: def manage_edit(self, field1, field2, field3, attachment, SUBMIT='Change', REQUEST=None): "Store Away Possibly-Modified Basic Attributes" self.field1 = field1 self.field2 = field2 self.field3 = field3 try: manage_addFile(id=attachment.filename, file=attachment) except: pass <snip> which only results in the following error message Error Type: IOError Error Value: [Errno 5] I/O error The python class subclasses CatalogAware as well as OFS.ObjectManager as I was hoping to be able to place the uploaded file in the object itself. I've scoured the mailing list as well as looked at the source code of some products but to no avail. Any ideas? Thanks, Meng Kuan