"Very interesting presentation on Dejavu, an ORM similar to SQLAlchemy and Django Models. It has a lovely pythonic syntax for doing queries with lambda expressions, e.g.: box.recall(Comic, lambda c: 'Hob' in c.Title or '#' in c.Title) Instead of for instance Django's Comic.objects.filter(Title__contains='Hob') | Comic.objects.filter(Title__contains='#') I also loved the approach to converting the python queries to SQL code: Dejavu converts the python queries into an AST, which is then deparsed into the desired SQL dialect, an approach that apparently was used long ago by Glorp, a Smalltalk ORM. Dejavu can also work with non-relational backends, such as flatfiles, LDAP stores, memcache, RAM and even the Python shelve. In the question round, Robert also showed a very simple syntax for joins: Table1 & Table2 represents an inner join. Table1 | Table2 represents an outer join. Table1 << Table2 represents a left join. One question that was left unanswered was whether Dejavu supports the..." - Olifante