This is an old version, new development is on github. http://ltworf.github.io/relational/

A relational algebra to python compiler.
Relational is primarily an educational tool to provide a workspace for experimenting with relational algebra, an offshoot of first-order logic.

It provides GUI that can be used for executing relational queries, and also provides a command line interface.

Provides a standalone Python module that can be used for executing relational queries, parsing relational expressions and optimizing them.

• Relational algebra on wikipedia
• Relational on qt-apps.org
• Relational on ohloh.net
• Relational on sourcearchive. Documentation browsable here.