=== Explanation ===
The Java implementation of Python is limited
in functionality. One can use the [https://docs.python.org/2/library/index.html standard library] , but it's not possible to install additional Python modules. Moreover a growing number of projects build on Python3 which is not fully compatible with Python2 Jython is based on. If you want to start learning Python it's recommended to learn Python3. x instead of Python2.
Even with the given limitations Jython is a powerful language for ImageJ scripting. Hopefully the examples on this page can convince you of that.
== Jython basics for ImageJ ==