Parand Tony Darugar left a question about SQLite on one of Chime's entries. I haven't used SQLite, but both Chime and Jeremy Kloth seem to like it. In fact, Jeremy has been testing it as a replacement for the DBM 4RDF driver and 4Suite repository flat file driver. I think all their work has been with SQLite+Python. Jeremy says "[I] rather like sqlite. It is aligned quite well with DB-API and quite fast". "fast, ACID, SQL". He says the minimum embeddable package size is 1.8M of source code.