credoscript is the CREDO database Application Programming Interface (API) developed to facilitate analysis of the stored data by simplifying access to the database, enabling scripting and integration of other useful Python modules and functions. The Object-relational mapping (ORM) capabilities are implemented with the help of SQLAlchemy, a Python SQL Toolkit and Object Relational Mapper.
The credoscript API can only be used internally by users with direct access to the database server.
credoscript is written in the Python programming language and tested with versions 2.6 and 2.7. CREDO uses PostgreSQL as relational database management system (RDBMS) so a Python driver for PostgreSQL is required to connect to the database. Psycopg can be installed on Debian-based systems with
$ sudo apt-get install python-psycopg2
or more generally with
$ sudo pip install psycopg2
It also requires SQLAlchemy version 0.7 or higher for object-relational mapping (ORM) purposes.
The source code for credoscript can be obtained by either downloading a source package from the Bitbucket repository or by cloning it with
$ hg clone https://bitbucket.org/blundell/credoscript
And switching to the stable branch:
$ hg update stable
The directory containing the credoscript source code should be added to the
$PYTHONPATH environment variable.
The connection settings inside the default configuration file config-default.json
have to be changed and the file renamed to config.json.
Credoscript is released under the MIT License.