http://www.andymac.org/libraries.html
PostGres is a SQL database, and there are some Python interface modules available.
http://www.andymac.org/python-2.3/
There is also an older (6/21/2003) port of PostgreSQL 7.3.2, which contains a GUI administration program and has an ODBC manager and drivers.
http://www.ecomstation.it/postgres/
Source: OS/2 News and Rumors