Psycopg2 is a project mainly written in C and PYTHON, based on the View license.
Modifications to psycopg2 to make it play nice with PyPy.
psycopg2 - Python-PostgreSQL Database Adapter
psycopg2 is a PostgreSQL database adapter for the Python programming language. This is version 2, a complete rewrite of the original code to provide new-style classes for connection and cursor objects and other sweet candies. Like the original, psycopg2 was written with the aim of being very small and fast, and stable as a rock.
psycopg2 is different from the other database adapter because it was designed for heavily multi-threaded applications that create and destroy lots of cursors and make a conspicuous number of concurrent INSERTs or UPDATEs. psycopg2 also provide full asycronous operations for the really brave programmer.
There are confirmed reports of psycopg 1.x compiling and running on Linux and FreeBSD on i386, Solaris, MacOS X and win32 architectures. psycopg2 does not introduce build-wise incompatible changes so it should be able to compile on all architectures just as its predecessor did.
psycopg2 is free software ("free as in freedom" but I like beer too.) It is licensed under the GNU Lesser General Public License, version 3 or later plus an exception to allow OpenSSL (libpq) linking; see LICENSE for more details.
Start by reading the INSTALL file. More information about psycopg2 extensions to the DBAPI-2.0 is available in the files located in the doc/ direcory. Example code can be found in the examples/ directory. If you make any changes to the code make sure to run the unit tests localed in tests/.
Online documentation can be found at: http://initd.org/psycopg/
If you stumble upon any bugs, please tell us at: http://psycopg.lighthouseapp.com/
For a list of contributors to the project, see the AUTHORS file.