How to determine if Python script was run via command line?

Question

Background

I would like my Python script to pause before exiting using something similar to:

raw_input(\"Press enter to close.\")

but

Answer 1

What I wanted was answered here: Determine if the program is called from a script in Python

You can just determine between "python" and "bash". This was already answered I think, but you can keep it short as well.

#!/usr/bin/python
# -*- coding: utf-8 -*-
import psutil
import os

ppid = os.getppid() # Get parent process id
print(psutil.Process(ppid).name())