[Zope] periods in objects; i.e. hostnames, IPs, etc

[chas@dot.tk]

Can someone take a look at this- regarding periods in object names
 
Generally I would "_['hostname']", but there are already double quotes for
the zsql object call-
 
<dtml-in "qrySelectKey(sqlTable=sqlTable, sqlKey=sqlKey,
sqlKeyStr=_['hostname'])">
...
</dtml-in>
 
the above fails finding the object named by the first portion of the
hostname (up to the period)
 
thanks in advance
Chas.