When we began building our Python library, we looked at both django[1] and sqlalchemy[2] for inspiration in designing our search DSL. Your example seems to clos

When we began building our Python library, we looked at both django[1] and sqlalchemy[2] for inspiration in designing our search DSL. Your example seems to closely match the django style. We preferred the sqlalchemy style, but both are solid choices. [1]http://docs.djangoproject.com/en/1.2/topics/db/queries/#chaining-filters http://docs.djangoproject.com/en/1.2/topics/db/queries/#chai... [2]http://www.sqlalchemy.org/docs/ormtutorial.html#common-filter-operators http://www.sqlalchemy.org/docs/ormtutorial.html#common-filte...