What are Jython and CPython ?

Answer 1

Python was introduced as a cross platform programming language adhering to the needs of Every developer....
such as when the intra structural semantics were written with C it was termed CPython.....
similarly While written with Java its called JPython

Answer 2

Ayan [#TheManWhoKnewInfinite] check.
Jython:
https://stackoverflow.com/questions/1859865/what-is-jython-and-is-it-useful-at-all
CPython:
https://www.quora.com/What-is-CPython

Answer 3

To say it in a few words:
It lets you use Python with C and Java.