[Zope] Passing keyword options to PageTemplateFile?

[Jon Whitener]

I'm creating a Python product ('MyClass') and attempting to use Zope 
Page Templates for the 'manage_*' forms.  In my manage_addMyClassForm, I 
want the ZPT to render a multiple selection list (of 'categories') using 
a tal:repeat statement which accesses 'categories' through the 'options' 
ZPT name.

My problem lies in passing the 'categories' sequence into the ZPT (via 
'options') from the MyClass.py module.  Here's what I have so far:

- MyClass directory which contains __init__.py, MyClass.py, and a 
sub-folder ('www') which contains the ZPT forms.

- MyClass.py defines MyClass and the 'categories' sequence (at the 
global level).  It also instantiates a Page Template object like so:

   preAddForm = PageTemplateFile('www/manage_addMyClassForm', globals())

- Then, I attempt (and fail) to create my manage_addMyClassForm Page 
Template this way (trying to use PageTemplate.__call__):

   manage_addMyClassForm = preAddForm(categories = allCategories)

My intention is that the above line passes 'categories' into the Page 
Template as one of the 'options' keyword arguments so that I can repeat 
over the sequence like:

   tal:repeat="category options/categories"

It doesn't work and I thank you in advance if you have any advice. 
Below is the error I get when I start up Zope and it fails to import the 
product:

2003-02-12T13:13:29 ERROR(200) Zope Could not import Products.MyClass
Traceback (innermost last):
   File C:\Zope1\lib\python\OFS\Application.py, line 541, in import_product
   File C:\Zope1\Products\MyClass\__init__.py, line 1, in ?
   File C:\Zope1\Products\MyClass\MyClass.py, line 42, in ?
     (Object: PageTemplate)
   File C:\Zope1\lib\python\Shared\DC\Scripts\Bindings.py, line 252, in 
__call__
     (Object: manage_addMyClassForm)
   File C:\Zope1\lib\python\Shared\DC\Scripts\Bindings.py, line 281, in 
_bindAndExec
     (Object: manage_addMyClassForm)
   File <string>, line 1, in ?
   File C:\Zope1\lib\python\Shared\DC\Scripts\Bindings.py, line 232, in 
_getTraverseSubpath
     (Object: manage_addMyClassForm)
AttributeError: other

Jon Whitener
Detroit Michigan USA