Penultimate report: Semantic Package Review Interface for mentors.debian.net

Hi,                                                                             

this is the fourth bi-weekly report on my Summer of Code project                 
'Semantic Package Review Interface for mentors.debian.net'.                     

My project aims to extract metadata from packages submitted to                  
mentors.d.n[1], and use this data to match a mackage with a potential           
sponsor. Since a lot of packages get stuck in the mentoring process             
because their maintainers have difficulty finding a sponsor, this               
should ease their entering the Debian process.

1 New plugin API for debexpo's importer 
==========================================

Last report, I mentioned an attempt at refactoring of the importer;
unfortunately I had to give up because my changes were not a clear
improvement and this was taking too much time compared its usefulness.

Thus, I only applied changes as small as possible to the importer, and
managed to integrate the new plugin API. Moreover, I have improved the
model for accessing the stored plugin results. Using sqlalchemy's
"association proxy"[2], I managed to represent the data of a plugin
result as a dictionary-like object. I also switched to the declarative
API. Both of these changes made the plugins look a lot nicer than with
the former API: [3]

I can't resist giving a little example for the access to the
plugin results, since it looks so nice:

  In [4]: q = meta.session.query(PluginResult)