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PyLucene's Python to Java bridge (ctypes/cffi-based JCC)

Project Description

Currently only as placeholder (because a base package jtypes.jvm is still in development)


PyLucene’s Python to Java bridge.


jtypes.jcc provides a bridge necessary to call into Java classes from Python via Java’s Native Invocation Interface (JNI).

jtypes.jcc is a lightweight Python package, based on the ctypes or cffi library.
It is an almost fully compliant implementation of PyLucene’s JCC package by reimplementing its functionality in a clean Python instead of C++.

About JCC:

Note from the original website:

What is JCC ?

JCC is a C++ code generator that produces a C++ object interface wrapping a Java library via Java’s Native Interface (JNI). JCC also generates C++ wrappers that conform to Python’s C type system making the instances of Java classes directly available to a Python interpreter. …

JCC is a Python extension written in Python and C++. It requires a Java Runtime Environment (JRE) to operate as it uses Java’s reflection APIs to do its work.


  • Various Java Runtime Environments such as Sun Java 1.6+, Apple’s Java 1.6+ on Mac OS X, open source Java OpenJDK 1.7+ builds as well as Oracle Java 1.7+.


pip install --upgrade jtypes.jcc

To ensure everything is running correctly you can run the tests using

python -m jt.jcc.tests



Copyright 2015-2017 Adam Karpierz

Licensed under the Apache License, Version 2.0
Please refer to the LICENSE file.



2.22.0a0 (2017-01-01)

  • Initial version.

2.21.0a0 (2015-10-14)

  • Initial version.
Release History

Release History

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