Barebones pure-python PostGreSQL client
The version found by browsing Mercurial is a very heavy reworking to make it somewhat DB-API 2.0 compliant. It's still being worked on, but it's in pretty good shape, and the beginnings of a unittest module are also in Mercurial.
NOT RECOMMENDED, this version is quite different than what's in Mercurial, and is not DB-API 2.0 compliant.
The current version fixes some problems the original version had, and adds support for md5 passwords. Generally better tested now.