Jython

Jython
Initial releaseJanuary 17, 2001; 23 years ago (2001-01-17)[1]
Stable release
2.7.4[2] Edit this on Wikidata / 18 August 2024; 3 months ago (18 August 2024)
Repository
Written inPython and Java
Operating systemCross-platform
PlatformJava virtual machine
TypePython Interpreter
LicensePython Software Foundation License (for older releases see License terms)
Websitewww.jython.org Edit this at Wikidata

Jython is an implementation of the Python programming language designed to run on the Java platform. It was known as JPython until 1999.[3]

Overview

Jython programs can import and use any Java class. Except for some standard modules, Jython programs use Java classes instead of Python modules. Jython includes almost all of the modules in the standard Python programming language distribution, lacking only some of the modules implemented originally in C. For example, a user interface in Jython could be written with Swing, AWT or SWT. Jython compiles Python source code to Java bytecode (an intermediate language) either on demand or statically.

History

Jython was initially created in late 1997 to replace C with Java for performance-intensive code accessed by Python programs, moving to SourceForge in October 2000. The Python Software Foundation awarded a grant in January 2005. Jython 2.5 was released in June 2009.[4]

Status and roadmap

The most recent release is Jython 2.7.4. It was released on August 18, 2024 and is compatible with Python 2.7.[5]

Python 3 compatible changes are planned in Jython 3 Roadmap.[6]

Although Jython implements the Python language specification, it has some differences and incompatibilities with CPython, which is the reference implementation of Python.[7][8]

License terms

From version 2.2 on, Jython (including the standard library) is released under the Python Software Foundation License (v2). Older versions are covered by the Jython 2.0, 2.1 license and the JPython 1.1.x Software License.[9]

The command-line interpreter is available under the Apache Software License.

Usage

See also

  • List of JVM languages
  • IronPython – an implementation of Python for .NET and Mono
  • PyPy – a self-hosting interpreter for the Python programming language.
  • JRuby – similar project for the Ruby programming language.
  • GraalVM - a polyglot runtime written in Java, has a Python 3 implementation

References

  1. ^ Wierzbicki, Frank (March 22, 2015). "jython: 3d8067c56a1d NEWS". Retrieved March 28, 2015.
  2. ^ "Release 2.7.4". August 18, 2024. Retrieved August 22, 2024.
  3. ^ "JythonFaq/GeneralInfo - JythonWiki". April 3, 2014. Retrieved March 28, 2015.
  4. ^ Wierzbicki, Frank (June 16, 2009). "Jython 2.5.0 Final is out!". Retrieved July 2, 2009.
  5. ^ "News". Jython. Retrieved April 19, 2020.
  6. ^ "Jython 3 Roadmap". Jython. Retrieved October 14, 2022.
  7. ^ "JythonFaq". Jython's project. Retrieved July 5, 2009.
  8. ^ "Differences between CPython and Jython". Jython's project. Archived from the original on October 7, 2023. Retrieved July 5, 2009.
  9. ^ "The Jython License". Jython's project. Archived from the original on October 9, 2018. Retrieved February 9, 2008.
  10. ^ "Introducing Ignition - Ignition User Manual 7.9 - Ignition Documentation". docs.inductiveautomation.com. Retrieved April 24, 2019.

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