According to Jython\'s documentation:
Jython is an implementation of the Python language for the Java platform. Jython 2.5 implements the same l
I suggest looking elsewhere for a Python 3 interpreter on the JVM.
The GraalPython project (https://github.com/graalvm/graalpython) looks promissing. There is good rationale behind its existence, essentially it says "Let's support scientific computing and data analysis in Python, which means e.g. numpy, including native-code modules, and let's make it fast and interoperable".
Jython, not so much, at this point.