Editing Jython

{{Short description|Java implementation of Python}}
{{Use mdy dates|date=July 2023}}
{{Infobox software
| name = Jython
| logo = Jython.png
| logo size = 100px
| logo alt = Jython Logo
| screenshot = 
| caption = 
| developer = 
| released = {{Start date and age|2001|01|17}}<ref>{{cite web
    |url        = https://hg.python.org/jython/file/tip/NEWS
    |title      = jython: 3d8067c56a1d NEWS
    |date       = March 22, 2015
    |access-date = March 28, 2015
    |first1     = Frank
    |last1      = Wierzbicki}}</ref>
| latest release version = {{wikidata|property|preferred|references|edit|P348|P548=Q2804309}}                                             | latest release date    = {{Start date and age|{{wikidata|qualifier|preferred|single|P348|P548=Q2804309|P577}}|df=yes}}
| latest preview version = 
| latest preview date = 
| operating system = [[Cross-platform]]
| platform = [[Java virtual machine]]
| programming language = [[Python (programming language)|Python]] and [[Java (programming language)|Java]]
| genre = Python [[interpreter (computing)|Interpreter]]
| license = [[Python Software Foundation License]] (for older releases see [[Jython#License terms|License terms]])
| website = {{Official URL}}
}}

'''Jython''' is an implementation of the [[Python (programming language)|Python programming language]] designed to run on the [[Java (programming language)|Java]] platform. It was known as '''JPython''' until 1999.<ref>
  {{cite web
    |url        = https://wiki.python.org/jython/JythonFaq/GeneralInfo
    |title      = JythonFaq/GeneralInfo - JythonWiki
    |date       = April 3, 2014
    |access-date = March 28, 2015}}</ref>

==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)|Python programming language]] distribution, lacking only some of the modules implemented originally in [[C (programming language)|C]]. For example, a user interface in Jython could be written with [[Swing (Java)|Swing]], [[Abstract Window Toolkit|AWT]] or [[Standard Widget Toolkit|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 (programming language)|C]] with [[Java (programming language)|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.<ref name="2.5.0">{{cite web
|url=http://fwierzbicki.blogspot.com/2009/06/jython-250-final-is-out.html
|title=Jython 2.5.0 Final is out!
|date=June 16, 2009
|access-date=July 2, 2009
|last=Wierzbicki|first=Frank
}}</ref>

==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.<ref>{{Cite web|url=https://www.jython.org/news.html|title=News|website=Jython|language=en-US|access-date=April 19, 2020}}</ref>

Python 3 compatible changes are planned in Jython 3 Roadmap.<ref>{{Cite web|url=https://www.jython.org/jython-3-roadmap.html|website=Jython|title=Jython 3 Roadmap|language=en-US|access-date=October 14, 2022}}</ref> 

Although Jython implements the Python language specification, it has some differences and incompatibilities with [[CPython]], which is the [[reference implementation]] of Python.<ref>{{cite web
| url=https://wiki.python.org/jython/JythonFaq/GeneralInfo#IsJythonthesamelanguageasPython.3F
| title=JythonFaq
|publisher=Jython's project
| access-date=July 5, 2009}}</ref><ref>{{cite web
| url=http://jython.sourceforge.net/archive/21/docs/differences.html
| title=Differences between CPython and Jython
| publisher=Jython's project
| access-date=July 5, 2009
| archive-url=https://web.archive.org/web/20231007235503/https://jython.sourceforge.net/archive/21/docs/differences.html 
| archive-date=2023-10-07}}</ref>

==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''.<ref>{{cite web
| url=https://www.jython.org/Project/license.html
| title=The Jython License
| publisher=Jython's project
| access-date=February 9, 2008
| archive-date=October 9, 2018
| archive-url=https://web.archive.org/web/20181009152125/http://www.jython.org/Project/license.html
| url-status=dead
}}</ref>

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

==Usage==
* [[JBoss Enterprise Application Platform|JBoss Application Server]]'s [[command line interface]] scripting using Jython
* [[Oracle Weblogic Server]] Scripting Tool uses Jython
* IBM [[Rational Software|Rational]] development tools allow Jython scripting
* IBM [[WebSphere Application Server]] tool scripting with ''[[wsadmin]]'' allows using Jython and [[Java Tcl|Jacl]]
* [[ZK Framework|ZK]] – a Java Ajax framework that allows glue logic written in Jython
*[[Ignition SCADA|Ignition]] - A software development platform focused on HMI and SCADA<ref>{{Cite web|url=https://docs.inductiveautomation.com/display/DOC79/Introducing+Ignition|title=Introducing Ignition - Ignition User Manual 7.9 - Ignition Documentation|website=docs.inductiveautomation.com|access-date=April 24, 2019}}</ref>
*[[Ghidra]] - a [[reverse engineering]] tool developed by the [[National Security Agency|NSA]] allows plugins to be written in [[Java (programming language)|Java]] or Jython
* [[openHAB]] - home automation software

==See also==
{{Portal|Computer programming|Free and open-source software}}
* [[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==
{{Reflist|30em}}

==External links==
* {{Official website}}

{{Python (programming language)}}
{{Java (Sun)}}
{{Authority control}}

[[Category:JVM programming languages]]
[[Category:Object-oriented programming languages]]
[[Category:Python (programming language) implementations]]
[[Category:Scripting languages]]
[[Category:Software using the Python Software Foundation License]]