[Zope] RE:Newbie: creating objects programmatically

[Richard Jennings]

Thanks to Dmitry and Maik, it works fine. So now I need to set the new ZTP contents
to those of a model ZPT.  Following Dmitry's advice, I read the ZPT source and
figured I could do the following:

instance.manage_addProduct['PageTemplates'].manage_addPageTemplate('index_html')
instance['index_html'].write(instance.memberIndex.document_src(self))

but no, I get:

Error Type: Unauthorized
Error Value: You are not allowed to access document_src in this context

I am logged in as 'manager'. I have tried:

instance['index_html'].write(str(instance.memberIndex))
  where memberIndex is a regular file and this works fine, but I want to use a model ZPT.

Guidance needed, please!

Richard
(every step an adventure!)