[Zope-dev] deepcopy of file object

Hi, I've got an object of type OFS.Image.File and I want to make a copy of it. I can't use the ObjectManager stuff, 'cos this object is being stored in a BTree-ish thing in a quite different context from a Zope folder. For obvious reasons, deepcopy(myfileobject) fails with a copy.error 'cos I don't see the File class having a __deepcopy__ method. Has anyone got any ideas or things that I might haev overlooked. cheers, Chris