[Zope] Writing to a file

The logic here is simple but I'm not sure about the code. Also not sure how or if I need to use Python (which I'm just learning). I'm in a zope dtml method called cldmSearchForm what I need to do from this method is: start a loop that loops through the SQL method clsqBanks until there are no more banks open a file which will be named something differently for each bank (i.e. bkbankidrom.txt) write a header of some sort start another loop which loops through the SQL method clsqOfficers until there are no more officers for each officer write the bankno, officer no, etc, then new line end officer loop close file end bank loop Hope someone can help!! Thanks in advance!!