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.