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. You can find the source and an issue tracker at https://github.com/wulczer/txpostgres and the documentation at http://wulczer.github.com/txpostgres/.