If you use python and need to deal with Java/JDBC I've posted the
start of a new project at http://code.google.com/p/jyjdbc/ - this is
similar to zxJDBC but with a focus on pure python code and easy
maintenance (easy, 'cos its Python and only needs a JRE rather than a
JDK).

It is basically an "easy" way to use JDBC from Python. It is far from
complete but I've been using it to test decimal data types in
Enterprise Access.

It's in mercurial so you can clone it very easily.

This is NOT an official Ingres project, so there is no support from
Ingres Corp. hence being hosted outside of Ingres.

Chris