= jython =
Python for the Java platform (2.7)
 * http://www.jython.org/index.html
 * wget https://repo1.maven.org/maven2/org/python/jython-standalone/2.7.1/jython-standalone-2.7.1.jar
 * https://wiki.python.org/jython/UserGuide

== GUI app ==
 * https://jython.readthedocs.io/en/latest/chapter16/

== GIL ==
https://jython.readthedocs.io/en/latest/chapter19/#no-global-interpreter-lock
No Global Interpreter Lock

Jython lacks the global interpreter lock (GIL), which is an implementation detail of CPython. For CPython, the GIL means that only one thread at a time can run Python code.