Provide __name__ for constructors.

lib/python/Products/PageTemplates/PageTemplateFile.py

@@ -15,7 +15,7 @@
 Zope object encapsulating a Page Template from the filesystem.
 """
 
-__version__='$Revision: 1.11 $'[11:-2]
+__version__='$Revision: 1.12 $'[11:-2]
 
 import os, AccessControl, Acquisition, sys
 from Globals import package_home, DevelopmentMode
@@ -56,6 +56,8 @@ class PageTemplateFile(Script, PageTemplate, Traversable):
         if name:
             self._need__name__ = 0
             self.__name__ = name
+        else:
+            self.__name__ = os.path.splitext(os.path.split(filename)[-1])[0]
         if not os.path.splitext(filename)[1]:
             filename = filename + '.zpt'
         self.filename = os.path.join(_prefix, filename)