This is txpostgres, a Twisted wrapper for asynchronous PostgreSQL
connections. It uses the asynchronous features of libpq, the
PostgreSQL C library, as exposed by psycopg2.

You can find more information about the psycopg2 Python driver at
http://initd.org/psycopg/. To use txpostgres you will need a recent version of
psycopg2, namely 2.2.0 or later.

txpostgres also requires Twisted, any reasonably recent version will do.

If you got txpostgres as a source tarball, you can run the automated test suite
and install the library with:
$ tar xjf txpostgres-x.x.x.tar.bz2
$ cd txpostgres-x.x.x
$ trial test
$ sudo python setup.py install

After that you can use txpostgres as a drop-in replacement for
twisted.enterprise.adbapi. The only difference is with connection
pooling, which is handled slightly different and with connection
estabilishing, which is asynchronous. Read the docstrings for the
Connection and ConnectionPool classes for more details.

The library is distributed under the MIT License. You can contact the author,
Jan Urbanski, at wulczer@wulczer.org.