Jython Explained

Jython
Logo Size:100px
Logo Alt:Jython Logo
Released:[1]
Latest Release Version:
Operating System:Cross-platform
Platform:Java virtual machine
Programming Language:Python and Java
Genre:Python Interpreter
License:Python Software Foundation License (for older releases see License terms)

Jython is an implementation of the Python programming language designed to run on the Java platform. It was known as JPython until 1999.[2]

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.[3]

Status and roadmap

The most recent release is Jython 2.7.3. It was released on September 10, 2022 and is compatible with Python 2.7.[4]

Python 3 compatible changes are planned in Jython 3 Roadmap.[5]

Although Jython implements the Python language specification, it has some differences and incompatibilities with CPython, which is the reference implementation of Python.[6] [7]

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.[8]

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

Usage

See also

Notes and References

  1. Web site: jython: 3d8067c56a1d NEWS . March 22, 2015 . March 28, 2015 . Frank . Wierzbicki.
  2. Web site: JythonFaq/GeneralInfo - JythonWiki . April 3, 2014 . March 28, 2015.
  3. Web site: Jython 2.5.0 Final is out!. June 16, 2009. July 2, 2009. Wierzbicki. Frank.
  4. Web site: News. Jython. en-US. April 19, 2020.
  5. Web site: Jython 3 Roadmap. Jython. en-US. October 14, 2022.
  6. Web site: JythonFaq. Jython's project. July 5, 2009.
  7. Web site: Differences between CPython and Jython. Jython's project. July 5, 2009.
  8. Web site: The Jython License. Jython's project. February 9, 2008. October 9, 2018. https://web.archive.org/web/20181009152125/http://www.jython.org/Project/license.html. dead.
  9. Web site: Introducing Ignition - Ignition User Manual 7.9 - Ignition Documentation. docs.inductiveautomation.com. April 24, 2019.