[Zope] Accessing Content of a Page Template In Python

Straight out: is it possible? If I have a text file in a directory, I can get the content from it from simply eg theContent = context.myFile How can I get the content out of a Page Template object? A related problem I have is that I can call my script from the context of a file object, but not a Page Template. eg. myFile/myScript This allows me to access the file as 'context'. Now, I want this script to work on Files and Page Templates, but when I try to access myPageTemplate/myScript, it simply displays the rendered template. Is there any way to do something like this? Thanks, Ed