[ZPT] python: path(request/foo) or 0

[Tim Head]

Hi

i've got a question. in one of the examples(the file thingie) the start 
varible has the value that is submited with the request or if left blank 
defaults to 0. i tried to do they same in one of my pages with the 
result that i end up with an error if the variable isn't submited with 
the request.
It seems the OR doesn't work.
I copied the line from the example(it works fine there) and pasted it 
into my page template.
does anyone have an idea why this does not work ??

thank you tim
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