The Open Source Zone

This is a good overall guide to jython and I think it is as good as all the rest of the nutshell books are.

This text has good coverage of the language features, but the presentation and organization is poor. If you're a Java developer looking to pick up jython quickly, I'd suggest "Jython for Java Programmers" instead.

I found the book to be informative in learning JPython, but it seemed to have ignored the most practical use-cases for JPython, light scripting and unit testing, and kept suggesting JPython as an alternative for working in Java. In addition, I felt the book was poorly (or boringly) written and that the authors failed to draw on any significant amount of experience in writing the book. <p>I would have preferred a book that wrote of JPython as a scripting language for Java and that offered advice on how best to leverage JPython for this purpose. I recommend taking a hard look at the other titles before purchasing this one.<p>OK, I'm adding a paragraph to this review after owning the book for a few weeks. It IS a very helpful book and I'm raising my rating from 2 to 4 stars. Perhaps I was thrown off at first by the succinctness of the text, but I've come to find that it makes it a great reference book. I'm already a half-way experienced programmer and do not need the filler and the explanation of concepts that thicker books probably provide.<p>Also, there is a helpful section on unit testing which I'd missed (It wasn't placed very well in the book) and python is a flexible enough language that someone should be able to figure out different ways to unit test without the section.

For someone who's been working in Cpython 1.5 thru 2.1, the 1st 5 chapters are an excellent, succinct language refresher and intro to new features in 2.2: nested scopes, generators, etc. <p>This book does assume pretty solid grounding in python. If you don't have that, start with:<p>Chun: Core Python
Lutz: Learning Python
or Harms/McDonald: Quick Python

This great reference is well organized and remarkably readable. I can't remember the last time I saw a guide this clearly writen. If you're working in Jython, you'll want to keep this book within arms reach. If you aren't working in Jython...well, why are you reading this review?