Virtuoso from Python
====================

This package is intended to be a collection of modules for
interacting with `OpenLink Virtuoso`_ from python.

The goal is to provide drivers for `SQLAlchemy` and `RDFLib`.

At the time of this writing it requires a fork of pyodbc, which you can find on this branch:
https://github.com/maparent/pyodbc/tree/v3-virtuoso

You have to set up your ``~/.odbc.ini`` (or ``/etc/odbc.ini``) file with a block similar to this:
::
    [VOS]
    Description = Open Virtuoso
    Driver      = /usr/local/virtuoso-opensource/lib/virtodbcu_r.so
    Servername  = localhost
    Port        = 1111
    Locale     = en.UTF-8

Most parameters depend on your installation, but be sure to use ``virtodbcu_r.so`` as opposed to any other variant. Wo have used virtuoso 7.1 in production, and also virtuoso 6.1. As of this writing, there is an issue with using LONG VARCHAR columns in virtuoso 7.2.

For more information see http://packages.python.org/virtuoso

.. _OpenLink Virtuoso: http://virtuoso.openlinksw.com
.. _SQLAlchemy: http://www.sqlalchemy.org/
.. _RDFLib: http://rdflib.net/

This package also contains an experimental generator of Virtuoso
Linked Data Views, which was presented as a poster at ISWC2014:
http://ceur-ws.org/Vol-1272/paper_60.pdf

The original design of this library is by `William Waites`, and development is continued by `Marc-Antoine Parent` for the `Assembl` project.

.. _William Waites: https://bitbucket.org/ww/virtuoso/src
.. _Marc-Antoine Parent: https://github.com/maparent/virtuoso-python
.. _Assembl: https://github.com/imaginationforpeople/assembl