which is the quick & dirty variant, or:
<dtml-var expr="(_['sequence-item'] or "").decode('iso-8859-7').encode('utf-8')" >

Which uses a "boolean trick".


PS: get used to python scripts where this is a lot better
to write

I agree with you and i would write this in python script (if this was
not an emegerncy and i was not a niewbie)
There one more thing to solve. Not all my elements in the list are
strings. If i was writing python i would use
for i,elem in enumerate(data):
    for j,ele in enumerate(elem):
        if isinstance(ele,(str,unicode)):
            print unicode(ele,'iso-8859-7').encode('utf-8')
what is the corresponding dtml-if to check if sequence-item is a

there is same_type to check. But you could just do:

<dtml-var expr="str(_['sequence-item'] or "").decode('iso-8859-7').encode('utf-8')" >

basically turn everything into a string.

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