I have confirmed that this is strange behavior can be reproduced on 2.1.6 -- why I don't know. A work around may be to convert your tuples to lists (easy to do in python) sample working code: <dtml-var standard_html_header> <h4>Iterate over 3.tuples</h4> <dtml-let list="[('a','b','c'),('d','e','f')]"> <dtml-in list> <dtml-var sequence-item><br> <dtml-in sequence-item> <dtml-var sequence-item></br> </dtml-in> </dtml-in> </dtml-let> <h4>Iterate Over 2-tuples</h4> <!---- My change here ------> <dtml-let list="[['a','b'],['c','d']]"> <dtml-var list><br> <dtml-in list> <dtml-var sequence-item><br> <dtml-try> <dtml-in sequence-item> <dtml-var sequence-item></br> </dtml-in> <dtml-except> <h4>Why can't I do this!</h4> </dtml-try> </dtml-in> </dtml-let> <h4>Iterate Over 1-tuples</h4> <dtml-let list="[('a',),('b',)]"> <dtml-in list> <dtml-var sequence-item><br> <dtml-in sequence-item> <dtml-var sequence-item></br> </dtml-in> </dtml-in> </dtml-let> <dtml-var standard_html_footer> On Sat, 01 Jul 2000, Cary O'Brien wrote:

Ok. I get a list of rows from a database query. I want to iterate over the rows. If there are 3 or more columns in the table, everythin is fine. If there are 2 columns, it doesn't work.

It seems as if dtml-in handles lists of pairs specially. Not a good thing. Can I supress this behavior?

Here is an example of this:

-------------------

<h4>Iterate over 3.tuples</h4> <dtml-let list="[('a','b','c'),('d','e','f')]"> <dtml-in list> <dtml-var sequence-item><br> <dtml-in sequence-item> > <dtml-var sequence-item></br> </dtml-in> </dtml-in> </dtml-let> <h4>Iterate Over 2-tuples</h4> <dtml-let list="[('a','b'),('c','d')]"> <dtml-in list> <dtml-var sequence-item><br> <dtml-try> <dtml-in sequence-item> > <dtml-var sequence-item></br> </dtml-in> <dtml-except> <h4>Why can't I do this!</h4> </dtml-try> </dtml-in> </dtml-let> <h4>Iterate Over 1-tuples</h4> <dtml-let list="[('a',),('b',)]"> <dtml-in list> <dtml-var sequence-item><br> <dtml-in sequence-item> > <dtml-var sequence-item></br> </dtml-in> </dtml-in> </dtml-let>

-----------------------

-- cary

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