Please modify
install ANTLR Runtime
wget http://www.antlr3.org/download/antlr-3.1.3.tar.gz

from wget http://www.antlr.org/download/antlr-3.1.3.tar.gz
Antlr no longer hosts the 3.1.3 at the "base" link.

[Comments : I also tried with antlr4-4.0.tar.gz ,surprisingly the ANTLR directory structure for v4 does not have runtime/python folder, so setup doesnot go through . Since java2python explicitly needs the antlr3, so fails, hence recommendation to correct in the installation docs here[for the benefit of other novice programmers like me]