Question:
What other language implementations of Python do you know?
How often asked: Never seen
Suggested by: ALittleMoron
Answer:
Besides the main implementation (CPython), there are many others:
Jython is Python written in Java.
IronPython is Python written in C#.
PyPy is Python written in RPython. It is often even faster than CPython due to JIT copying, but not always.
Cython is a superset of Python that adds C features, compilation, and static typing.
Most third-party Python implementations either lag far behind the official implementation or have been completely abandoned.
Interview answer explanation:
It's best not to worry about this issue.
It's useful to know the Python implementations and understand the differences between them, but there's practically no practical benefit to doing so.
Just looking at the implementations available in each language is enough.