I'm trying to put up a page where company documents can be retrieved and added by users. I created a Zope Product and ZClass (CompanyObjects and CompanyDocs respectively). I inherited the CompanyDocs ZClass from the File Class, however I'm not sure how to access the File functionality via python. I want to create a python method that sets the Document properties and file from a form, however I don't know how to update/upload the file passed in from the form into the CompanyDocs ZClass. This is the python method (using the "Adding A ZClass programatically HOWTO" as a start) def addACompanyDoc(self, id, file, title, author, desc, REQUEST=None): """ """ # Get the actual destination object, using the this() # method, to be sure we get it in the right context.. self=self.this() # Create the new instance newob=self.Control_Panel.Products.CompanyObjects.CompanyDoc(id) newob.id=id #change properties using the example in the "Using Z Class Instances" newob.manage_changeProperties({ 'title':title 'author':author 'description': desc }) # Add the new instance to the target object self._setObject(id, newob) How do I change the object content to the file passed in from the form? Is there a more elegant solution that this? The PDFile example was helpful however it assumes you are adding the file via the Zope management interface, not using External methods and python. Also is there a python module file that defines all the methods that can be called on Zope objects (the self argument to all python external methods)? I'm pretty sure its not ZClass.py. This would be infinitely helful since there is really no good resource for the Zope Python API (besides the HOWTOS) Chimezie Ogbuji