Mixing Python and Java
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The document discusses several techniques for integrating Python and Java applications: 1) Embedding Python in Java using Jython allows Java code to call Python code directly. 2) Calling Java from Python using JPype allows Python scripts to utilize existing Java libraries. 3) Calling Python from Java using JEPP enables Java applications to execute Python scripts. 4) Inter-process communication between Python and Java can also be achieved using technologies like CORBA or SPIRO. Examples are provided for each approach.
Mixing Python and Java
- 1. Mixing Python and Java How Python and Java can communicate and work together EuroPython 2009 (June 30th 2009, Birmingham) Andreas Schreiber <Andreas.Schreiber@dlr.de> German Aerospace Center (DLR), Cologne, Germany http://www.dlr.de/sc
- 2. Final Version of this Slides is available on SlideShare http://tr.im/ep09java
- 3. Summary Java is being used for many existing applications in a variety of domains. Sometimes it is useful to integrate them with Python. For instance, one may wish to add embedded Python scripting to Java applications, to communicate with separate Python code written for CPython, or use existing Java libraries from Python code. The talk gives an overview of the various techniques, tools, and libraries for bridging Python and Java. In particular, the following implementations are described and compared: * Embedding of Python into Java with Jython. * Calling Java code from CPython scripts with JPype. * Calling CPython from Java code with JEPP. * Using inter process communication between Python and Java (e.g., with CORBA or SPIRO). Examples for all techniques are demonstrated, and use cases for the different approaches are presented with examples from real world applications.
- 4. Jython Java Virtual Machine Jython Python Code Java Application Code
- 5. JEPP Python Interpreter Java Virtual Machine Java Application Code Python Code JNI JEPP
- 6. JPype Python Interpreter JNI JPype Python Application Code Java Virtual Machine Java Application Code
- 7. JCC Python Interpreter JNI Python Code Java Virtual Machine Java Application Code pythonExtension() Generated C++ Wrapper Code JCC Code Generator
- 8. ORBs Java Virtual Machine Generated Java Code ( Stub ) Python Interpreter ORB Python Application Code ( Server ) Generated Python Code ( Skeleton ) Java Application Code ( Client ) IDL Compiler IDL
- 9. Web Services: SOAP Java Virtual Machine Servlet Container Java Application Code ( Server ) Python Interpreter Generated Python Code ( Stub ) Python Application Code ( Client ) Generated Java Code ( Skeleton ) WSDL Compiler WSDL
Editor's Notes
- #3: http://tr.im/ep09twt