Kids these days have it easy:

# pip install java2python

We need the ANTLR Python runtime before we can install java2python:

# wget http://www.antlr.org/download/antlr-3.1.3.tar.gz
# tar xfz antlr-3.1.3.tar.gz
# cd antlr-3.1.3/runtime/Python/
# python setup.py install

Now the goodness:

# wget https://github.com/downloads/natural/java2python/java2python-0.5.0.tar.gz
# tar xfz java2python-0.5.0.tar.gz
# cd java2python
# python setup.py install

The latest source can be installed directly from github:

# pip install --upgrade https://github.com/natural/java2python/zipball/master

You'll want to clone or fork the repo to work on the project, however.

The runtime dependency for java2python is the Python runtime for ANTLR. The exact version number is very important: java2python requires version 3.1.3 of the Python runtime.

The development dependencies (what you need if you're coding java2python) are ANTLR, also version 3.1.3, GNU make, and a JVM.