Generally of no use to us humble DTML programmers. This argument is used when recursively searching subobjects, where pre is the relative URL of the object searched. Generally of no use to us humble DTML programmers. Contributed by visitor . From there you can traverse down the hierarchy.
Various issues come into play here.
First of all, be sure your HTML is correct. This is necessary to make the form pass along file contents in an efficient way. FileUpload objects support the same methods as Python file objects, and you can therefore treat them as normal Python files. Have a look at CopySupport.py to see how it is implemented in Zope. I suspect the exact definition of the Zope API depends on the ability and knowledge of the programmer that is using Zope, as well, so we might never agree on what is in the API and what not in the end.