[Zope] Re: Accumulate vars with <dtml-var expr="...">

[Jesper Steen Steffensen]

>
> >I have a table with a list of values. To list my values in a dtml
> >method i write <dtml-var value> inside the appropriate dtml-in tag.
> >In the next column I have the <dtml-var sequence-number>
> >
> >I want to accumulate my values so the result will be:
> >
> >Is it possible to make this accumulated value as a
> ><dtml-var expr="[something like sum of values where seq-num <=seq-num]">
>
> Write a simple python script. Input=original list of values.
> Output=list of (value, accum). Iterate the result with dtml-in as before.
>
>
> Gabriel Genellina
> Softlab SRL



Can you pls explain it a bit more in detail - afraid I'm still a bit new to
Zope and dtml/python. What would the Script (Python) look like?

Thanks for your help! :-)
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