Hi, I have installed Twisted-2.5.0 and the zope.interface-3.3.0 that comes with this package. I then tried to follow some introductory steps on the web site and downloaded the simple.py example. When I execute 'twistd -ny simple.py' I obtain the output below informing me that I am missing Interface. Everything seems to be installed correctly. Is there some simple step I have overlooked? Thanks 2007/06/16 11:14 +0200 [-] Log opened. 2007/06/16 11:14 +0200 [-] twistd 2.5.0 (/usr/bin/python 2.5.1) starting up 2007/06/16 11:14 +0200 [-] reactor class: <class 'twisted.internet.selectreactor.SelectReactor'> 2007/06/16 11:14 +0200 [-] Loading simple.py... 2007/06/16 11:14 +0200 [-] Traceback (most recent call last): 2007/06/16 11:14 +0200 [-] File "/usr/lib/python2.5/site-packages/twisted/application/app.py", line 218, in getApplication 2007/06/16 11:14 +0200 [-] application = service.loadApplication(filename, style, passphrase) 2007/06/16 11:14 +0200 [-] File "/usr/lib/python2.5/site-packages/twisted/application/service.py", line 341, in loadApplication 2007/06/16 11:14 +0200 [-] application = sob.loadValueFromFile(filename, 'application', passphrase) 2007/06/16 11:14 +0200 [-] File "/usr/lib/python2.5/site-packages/twisted/persisted/sob.py", line 215, in loadValueFromFile 2007/06/16 11:14 +0200 [-] exec fileObj in d, d 2007/06/16 11:14 +0200 [-] File "simple.py", line 1, in <module> 2007/06/16 11:14 +0200 [-] from twisted.web2 import server, http, resource, channel 2007/06/16 11:14 +0200 [-] File "/usr/lib/python2.5/site-packages/twisted/web2/server.py", line 25, in <module> 2007/06/16 11:14 +0200 [-] from twisted.web2 import http, iweb, fileupload, responsecode 2007/06/16 11:14 +0200 [-] File "/usr/lib/python2.5/site-packages/twisted/web2/http.py", line 27, in <module> 2007/06/16 11:14 +0200 [-] from twisted.web2 import iweb 2007/06/16 11:14 +0200 [-] File "/usr/lib/python2.5/site-packages/twisted/web2/iweb.py", line 58, in <module> 2007/06/16 11:14 +0200 [-] class IOldNevowResource(components.Interface): 2007/06/16 11:14 +0200 [-] AttributeError: 'module' object has no attribute 'Interface' 2007/06/16 11:14 +0200 [-] Failed to load application: 'module' object has no attribute 'Interface' 2007/06/16 11:14 +0200 [-] Unhandled Error Traceback (most recent call last): File "/usr/lib/python2.5/site-packages/twisted/application/app.py", line 379, in run runApp(config) File "/usr/lib/python2.5/site-packages/twisted/scripts/twistd.py", line 23, in runApp _SomeApplicationRunner(config).run() File "/usr/lib/python2.5/site-packages/twisted/application/app.py", line 157, in run self.application = self.createOrGetApplication() File "/usr/lib/python2.5/site-packages/twisted/application/app.py", line 207, in createOrGetApplication application = getApplication(self.config, passphrase) --- <exception caught here> --- File "/usr/lib/python2.5/site-packages/twisted/application/app.py", line 218, in getApplication application = service.loadApplication(filename, style, passphrase) File "/usr/lib/python2.5/site-packages/twisted/application/service.py", line 341, in loadApplication application = sob.loadValueFromFile(filename, 'application', passphrase) File "/usr/lib/python2.5/site-packages/twisted/persisted/sob.py", line 215, in loadValueFromFile exec fileObj in d, d File "simple.py", line 1, in <module> from twisted.web2 import server, http, resource, channel File "/usr/lib/python2.5/site-packages/twisted/web2/server.py", line 25, in <module> from twisted.web2 import http, iweb, fileupload, responsecode File "/usr/lib/python2.5/site-packages/twisted/web2/http.py", line 27, in <module> from twisted.web2 import iweb File "/usr/lib/python2.5/site-packages/twisted/web2/iweb.py", line 58, in <module> class IOldNevowResource(components.Interface): exceptions.AttributeError: 'module' object has no attribute 'Interface' Failed to load application: 'module' object has no attribute 'Interface' 2007/06/16 11:14 +0200 [-]