[Zope] Q: Product adding Properties and Objects

[complaw@hal-pc.org]

Is there any special syntax for a Zope Product (not a ZClass) to add, say, a
File object?

context.manage_addFile(id=file_id, file=file, title=title,
content_type='application/msword')

..doesn't work.  Zope complained about "context".

I have seen code that, for a DTML Document, uses 

"ob = DTMLDocument(data, __name__ = id).  

Unfortunately, I don't know the corresponding syntax for a File object. 

Any hints?

TIA,

Ron