/virtuoso-python

RDFLib and SQLAlchemy bindings for Virtuoso

Primary LanguagePythonBSD 3-Clause "New" or "Revised" LicenseBSD-3-Clause

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

It can be installed normally with pip install -r requirements.txt

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
Address     = localhost: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

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 an earlier stage of the Assembl project.