[Zope] Variables: accessing them across several pages

[Redding, Matthew]

Hi Zope Gurus, 

I have been converting an environmental model to
run as a series of forms on the web.  Zope and python seem so far
like the correct tool to be using.

Something is really bamboozling me.
I see that DTML variables can be accessed from DTML document to
document.
I see that there are such things as session variables. I have read about
REQUEST and RESPONSE in the passing of parameters to called python
scripts and 
external methods....I have this one working.

But I cannot get my brain around the following:
1.  I output a form to the web (HTML in this case; lets call it
"form1").  It collects several values, 
that are submitted to an external python method.
2.  External python method "expy1", does some calculations, returns a
table of values to the web, with a link
to a subsequent form, "Form2".
3.  Submission of "Form2" passes several values to a python script
"internalpy1".
4.   ***Now this is the problem....how can "internalpy1" access the
values collected in "form1"???  If I use DTML
for "form1" instead of html, can I make variables persist easier?

It seems that to publish any page to the web from a python script, is to
halt the python script, since it 
must use it's return to do this...is this correct?

I would **really** appreciate your help with this problem, though it is
a total newbie issue, I know.
It has chewed up about four frustrating evenings so far.


Thanks for any advice you can offer.

Matt Redding

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