Andreas and Jonathan,

Thanks for the responses! As I said, I am completely new to Zope/ Python, so I appreciate your help. I'll look into how this could be done with a Python script instead of DTML, but this version of our product is all DTML, so that's why I'm using this solution for now. Next version we're moving to Zope 3, so things should get better!

In any case, Jonathan's solution worked (though he had single quotes around 'calstart' which shouldn't have been there.) What I'm doing is setting up a hash table so I can do some branching in a separate loop. I have a feeling I'm building a hash table for something I may be able to access directly, but it's working, so I don't want to take up more space in peoples' inboxes. Thanks again for the quick help!


On Feb 27, 2006, at 10:15 AM, Andreas Pakulat wrote:

On 27.02.06 09:56:49, Andrew Hedges wrote:
Allow me to preface this by saying I am a complete newbie to Zope (I prefer to think of it as beginner's mind...). What I am attempting to do is dynamically add items to a dictionary, but Zope complains "keyword can't be an expression".
 Here's the reduced case of my code:

<dtml-let eventsDict="{}">
   <dtml-let calstart="somestring">
      <dtml-call "REQUEST.set(eventsDict[calstart]=id)">

First let me tell you: Write a python script for things like this, it
really belongs into one.

Second thing: your dtml-call has a serious error, eventsDict[..]=id is
executed but it doesn't produce anything so set is called with no
parameters and this is wrong. set needs 2 parameters, one beeing a
string as the key and a second as the value which can be of any type
python knows.

I also don't get what this snippet should do?


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