I got tired of having to restart my ZopeHTTPServer every time I twiddled a DTML file used by a published object, so I wrote the following simple class that checks the mod time of the DTML file when it's called, and recreates its HTMLFile instance if necessary. I instantiate it instead of HTMLFile. class Template: def __init__(self, file): self.file = file self.template = DocumentTemplate.HTMLFile(self.file) self.ftime = os.stat(self.file)[stat.ST_MTIME] def __call__(self, *args, **kargs): ftime = os.stat(self.file)[stat.ST_MTIME] if self.ftime < ftime: self.ftime = ftime self.template = DocumentTemplate.HTMLFile(self.file) return apply(self.template.__call__, args, kargs) I'm sure there's probably a simple way to integrate this into DocumentTemplate.HTMLFile directly, but this seemed easier to me, what with the mixins and such that are used in DocumentTemplates, and all I really need are __init__ and __call__ methods. Consider this a feature request (I also submitted it to the Zope web site.) Skip Montanaro | Mojam: "Uniting the World of Music" http://www.mojam.com/ skip@calendar.com | Musi-Cal: http://concerts.calendar.com/ 518-372-5583