Expert Python Programming - Third Edition

Jython

Jython is a Java implementation of the language. It compiles the code into Java byte code, and allows the developers to seamlessly use Java classes within their Python modules. Jython allows people to use Python as the top-level scripting language on complex application systems, for example, J2EE. It also brings Java applications into the Python world. Making Apache Jackrabbit (which is a document repository API based on JCR; see http://jackrabbit.apache.org) available in a Python program is a good example of what Jython allows.

The main differences of Jython compared to the CPython implementation are as follows:

• True Java's garbage collection instead of reference counting
• Lack of global interpreter lock (GIL) allows better utilization ...