[Zope] Newbie Question: Zope crashing

[Ashley Lloyd]

I have posted in the last few days asking for help formatting a date 
retrieved from an Interbase db (thanks very much to Kevin Carlson for the 
help with that).

I now have a Python script called convertDate, which takes one parameter, 
aDate:
############################################################
try:
  thedate = DateTime(aDate)
  return thedate.strftime('%d/%m/%Y')
except:
  print "Error on date ", aDate
  return printed
############################################################
I also have an SQL method called all_dates which is simply:

select C_DATE from CALENDAR
order by C_DATE

Finally, I have a DTML method called list_dates which again is simple:
############################################################
<dtml-var standard_html_header>

<table border=1 width="60%" cellspacing=1>
    <tr><th>Date</th><th>Converted</th></tr>
  <dtml-in all_dates>
    <tr>
      <td width="50%"><dtml-var C_DATE></td>
      <td width="50%"><dtml-var "convertDate(C_DATE)"></td>
    </tr>
  </dtml-in>
</table>

<dtml-var standard_html_footer>
############################################################

If I dtml-comment out the "convertDate(C_DATE)" output line, the DTML method 
works fine.
I have tried testing the SQL, which works fine.
I have tried testing the script using an actual date from the database - 
retrieved by commenting out the line mentioned, and this returns the date 
fine.
I have checked for rogue/empty C_DATE values in the database, there are 
none.
I have also tested the script using a random text input, and the try..except 
gave the expected error message.
I have tried replacing "convertDate(C_DATE)" with something like 
"convertDate('2000-01-01 00:00:00.00')" (date format retrieved again from 
the db in the manner outlined above), and this allows the page to be viewed 
fine.

If I try the DTML method as above, though, Zope stops responding completely. 
The dataset is by no means large (max 30 entries), and I have allowed it 10 
mins before giving up!

I am using Zope version 2.5.1 (Python version 2.1.3) on Win 2k.

Can anyone help?

Kind regards

Ashley


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