Hi, I noticed an email from Dickon Reed referencing this issue last June (http://twistedmatrix.com/pipermail/twisted-web/2005-June/001536.html), but there is no reply in the archives - I was wondering if someone had discovered a solution? I am attempting to write a simple rpi script which uses a registry, as described in the documentation: http://twistedmatrix.com/projects/web/documentation/howto/using-twistedweb.h... My rpy script is as follows: ---- from twisted.web import resource class Counter: def __init__(self): self.value = 0 def increment(self): self.value += 1 def getValue(self): return self.value counter = registry.getComponent(Counter) if not counter: registry.setComponent(Counter, Counter()) counter = registry.getComponent(Counter) class MyResource(resource.Resource): def render_GET(self, request): counter.increment() return "you are visitor %d" % counter.getValue() resource = MyResource() ---- I get the following error: exceptions.AttributeError: class Counter has no attribute '__adapt__' /System/Library/Frameworks/Python.framework/Versions/2.3/lib/python2.3/site-packages/twisted/web/server.py, line 152 in process 150 self.postpath = map(unquote, string.split(self.path[1:], '/')) 151 try: 152 resrc = self.site.getResourceFor(self) 153 self.render(resrc) ... I would be happy to send the full traceback if it would be useful in identifying the problem. I am using Twisted, Twisted Web, and Zope Interfaces installed from the 2005-11-06 Twisted "Sumo" build on an OS X 10.3.9 G5 running python 2.3 (the latest for OS 10.3.x). cheers, Charlie