Index: lib/mako/template.py
===================================================================
--- lib/mako/template.py	(revision 438)
+++ lib/mako/template.py	(working copy)
@@ -151,6 +151,9 @@
     def get_def(self, name):
         """return a def of this template as an individual Template of its own."""
         return DefTemplate(self, getattr(self.module, "render_%s" % name))
+
+    def last_modified(self):
+        return self.module._modified_time
     
 
 class ModuleTemplate(Template):