Another Python SQLite Wrapper: APSW is a thin wrapper over the SQLite 3 API. [Open Source, zlib/libpng license]
DMtools: A data mining toolbox with caching of database queries and parallelism within a collection of independent queries. [Open Source, GPL]
MetaKit for Python: A Python interface to MetaKit. MetaKit is an embeddable database which runs on Unix, Windows, Macintosh, and other platforms. [Open-Source, MIT]
Metakit for Python (Mk4py): A lower-level API for the Metakit C++ core extension, and uses SCXX by Gordon McMillan as C++ glue interface. [X/MIT-style and commercial licenses]
mxBeeBase: On-disk B+Tree Based Database Kit. [Open Source]
PDO: Python Database Objects provides a convenient Object Oriented API for database access in Python. PDO supports multiple RDBMS with the same API, and provides features not found in the DB-API spec, such as column access by name. [OPen source, BSD style license]
pSQL: A wrapper above MySQLdb which renders MySQL databases as very comfortable pythonic objects.
pyBSDdb: Python bindings for BerkeleyDB 3.x embeddable database. [Open Source, BSD-like]
PyDO2: An ORM (Object-Relational Mapper) database access library for Python. [Open Source, GPL]
Python Database Row Module: This Python 2.2 module defines light-weight objects which allow very flexible access to a fixed number of positional and named attributes via several interfaces. [Open Source, BSD-like]
Python SQL Database Access System: A simple and consistent programming interface to SQL databases, in Python. [Open source, Python Software Foundation License]
SnakeDb: An easy database API that is a wrapper around other Python database modules (like Gadfly and MySQLdb). [Open source, GPL]
SQLAlchemy: SQL toolkit and Object Relational Mapper that gives application developers the full power and flexibility of SQL. [Open Source, MIT license]
SQLDict Module: A dictionary-style interface around any DB API-compatible database. [Open Source, BSD-like]
SQLObject: A Object Relational Manager for providing an object interface to your database, with tables as classes, rows as instances, and columns as attributes. [Open Source, LGPL]
ZODB: The Z Object Database, or the ZODB for short, is a powerful and easy-to-use object persistence system for Python. [Open Source, ZPL]
ZODB-Tutorial.py: A number of hands-on code example how to use the ZODB.