Py Pg SQL is a package of two modules that provide a Python DBAPI 2.0 compliant interface to PostgreSQL databases. The first module, libpq, exports the PostgreSQL C API to Python. This module is written in C and can be compiled into Python or can be dynamically loaded on demand. The second module, PgSQL, provides the DBAPI 2.0 compliant interface and support for various PostgreSQL data types, such as INT8, NUMERIC, MONEY, BOOL, ARRAYS, etc. This module is written in Python.

Website: http://pypgsql.sourceforge.net/