Skip to main content
Help improve PyPI by participating in a 5-minute user interface survey!

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.



2.22.0a2 (2017-01-03)

  • Initial version.

2.21.0a0 (2015-10-14)

  • Initial version.

Release history Release notifications

This version
History Node


Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Filename, size & hash SHA256 hash help File type Python version Upload date (23.1 kB) Copy SHA256 hash SHA256 Source None Jan 3, 2017

Supported by

Elastic Elastic Search Pingdom Pingdom Monitoring Google Google BigQuery Sentry Sentry Error logging CloudAMQP CloudAMQP RabbitMQ AWS AWS Cloud computing Fastly Fastly CDN DigiCert DigiCert EV certificate StatusPage StatusPage Status page