javabridge: running and interacting with the JVM from Python

The javabridge Python package makes it easy to start a Java virtual machine (JVM) from Python and interact with it. Python code can interact with the JVM using a low-level API or a more convenient high-level API.

The javabridge was developed for CellProfiler, where it is used together with python-bioformats to interface to various Java code, including Bio-Formats and ImageJ.

PyPI record

Documentation

GitHub repository

Bug reports

Contents:

• Installation and testing
  • Install using pip
  • Install without pip
  • Dependencies
  • Running the unit tests
• Hello world
• Starting and killing the JVM
  • API
  • Without GUI (headless mode)
  • With GUI on the Java side
  • With GUI on both the Java side and the Python side
• Executing JavaScript on the JVM
• High-level API
  • Signatures
  • Wrapping Java objects using reflection
  • Operations on Java objects
  • Hand-coding Python objects that wrap Java objects
  • Useful collection wrappers
  • Reflection
  • Executing in the correct thread
  • Exceptions
• The low-level API
• Calling Python from Java
  • Maintaing references to Python values
• Unit testing
• For Javabridge developers
  • Build from git repository
  • Make source distribution and publish
  • Upload source distribution built by Jenkins

Indices and tables

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• Search Page