Jython which python version

Jython is embedded in lots of projects. See some from MVNRepository. What is Jython? Jython is complementary to Java and is especially suited for the following tasks: Embedded scripting - Java programmers can add the Jython libraries to their system to allow end users to write simple or complicated scripts that add functionality to the application.

PyPy aims for maximum compatibility with the reference CPython implementation while improving performance. PyPy supports Python 2. PyPy3 [1] , released in beta, targets Python 3. Additionally, it is able to import and use any Java class like a Python module. If you need to interface with an existing Java codebase or have other reasons to need to write Python code for the JVM, Jython is the best choice.

Jython currently supports up to Python 2. IronPython is an implementation of Python for the. NET framework. It can use both Python and. NET framework libraries, and can also expose Python code to other languages in the. Python Tools for Visual Studio integrates IronPython directly into the Visual Studio development environment, making it an ideal choice for Windows developers. IronPython supports Python 2. Python for. NET is a package which provides near seamless integration of a natively installed Python installation with the.

Map can be accessed using [] notation. Empty maps are considered false in boolean conversions. Iteration of maps yields the keys, consistent with dict. Inheriting from a Java class or implementing an interface is supported with some syntactical differences from Jython.

Super calls are performed using a special attribute self. Its Python-level members can be accessed using its this attribute. The other way to use Jython is to embed it into Java applications. Existing code using Jython depends directly on the Jython package for example, in the Maven configuration , because the Java code has references to Jython internal classes such as PythonInterpreter.

It is important to note that as long as your application is executed on GraalVM with the Python language installed, you can embed Python in your programs.

For more details, refer to the Embed Languages guide. Jython Migration Guide Most Jython code that uses Java integration will be based on a stable Jython release, and these only come in Python 2. For example, this will work: import java. String str byte[] bytes, bytearray, wrapped Java array, Python list with only the appropriate types Java arrays Wrapped Java array or Python list with only the appropriate types Java objects Wrapped Java object of the appropriate type java.

Object Any object Special Jython Modules The jarray module which is used to create primitive Java arrays is supported for compatibility. Exceptions from Java Catching all kinds of Java exceptions comes with a performance penalty and is only enabled with the --python.