PDO: Python Database Objects.
Database Module for Python based upon DB-API 2.0: featuring column access by name and high performance. Similar in API to ADO, JDBC.
KInterbasDB is a Python DB API 2.0 module for the relational databases Firebird and Interbase. KInterbasDB also exposes most of the native client API of the database engine, including two-phase commit, server-side events, and an administrative API.
Pythonmodule for accessing RFC 2229 compliant dictionary servers. Includes classes and runs as a standalone client (a la dict) as well as a CGI script.
NTuple is a Pythonmodule used by high-energy physicists and astrophysicists to easily and efficiently access ntuple data stored in large ROOT data stores. Specifically, NTuple provides a friendly Pythonic interface to TNtuples and TTrees stored in TFiles
Paos is a server for Python objects and event notifications, and comes with a client module for network communication and object cache management. Paos is often used in workflow systems and similar applications.