[Twisted-Python] Newbie trying to figure out cred

[Alex May]

Hello All,

I am new to the twisted framework.  After some searching through the docs, I 
finally found the howtos and examples that let me grok the basic twisted 
concepts.  Since then I've been successful putting together a basic web 
application with twisted.

Now I am trying to add credential functionality and I am completely lost.  
Initially I read all the API docs, and could not make much sense of how to 
stitch everything together.  Nor could I find any web based credential 
examples.  Finally I found the mailing list thread titled "lies, damn lies, 
and interfaces", which outlined a new cred interface and gave an example 
file.

I upgraded to twisted 1.0.6 and downloaded sandbox/webhappyrealm.py.  When I 
run it and attempt to access /site1 I get the following:

-----
web.Server Traceback (most recent call last):  

twisted.cred.error.UnhandledCredentials: No checker for 
twisted.cred.credentials.IAnonymous ,twisted.cred.credentials.ICredentials

twisted.cred.error.UnhandledCredentials: No checker for 
twisted.cred.credentials.IAnonymous ,twisted.cred.credentials.ICredentials
-----
 
Are these new interfaces mature enough to use?  Should I instead use the CVS 
version of twisted?  Or am I just being stupid and doing something wrong?

Please help!

Thanks,
Alex

PS: I'm running python 2.2.2.