[Florent Guillaume]

...

Ah, the new syntax - I was thinking Python 1.5.2, as in pre-Zope 2.4.

It works in python 1.5.2 too. print "%(foo)s" % {'foo': 'yo'}

Oh, thanks. I thought I had tried that before my original post, but I must have made an error. Glad to learn something new. Tom P