getting openid comments to work

Hello,

I set up pyblosxom with the openid_server and openid_comment plugin and 
ran into a couple of issues:

1. if an OpenID request is handled, cmtExpr() in comments.py breaks 
because entry['absolute_path'] and entry['fn'] both return None and the 
code subsequently fails when using the None values;
so I added a check to just return in case None is returned

2. the locking code in session.py is broken, ie. _lock() and _unlock(); if 
the file to lock does not (yet) exist, an exception is thrown; I suggest 
to use exception handlers within these methods

3. comments_openid.py only passed one parameter to consumer.complete() in 
complete_openid_auth(), however, newer python-openid libraries require a 
second parameter; this can be easily fixed with the following line

# Ask the OpenID library to check the server's response
response = consumer.complete(query, return_to)

I'd appreciate if above issues could be fixed in the repository;
please contact me if more detail is required

thanks, regards, p.

-- 

Peter Meerwald
Kaigasse 3 / 8
A-5020 Salzburg / AUSTRIA
+43-664-2444418 (mobile)

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