[Zope] Getting error assigning sequence-item to REQUEST

[Richard Moon]

Can anyone tell me why the following
<dtml-in "_.string.split(tune_name,'|')">
     <dtml-if sequence-start>
       <dtml-call expr="REQUEST.set('tune_name',sequence-item)">

raises the error "Error Type: Name Error  Error Value:sequence"	

It is the last line which raises the error.

This is the error I would expect if I was trying to use a variable which 
wasn't in the current namespace so I am confused why I cannot use 
sequence-item in this way.

Can anyone tell me the correct syntax (and why ) ?

Thanks in advance

Richard



Richard Moon
richard@dcs.co.uk