Get anything before arguments

[Robotguy]

Thanks for your reply. This prints /path/to/Python37-32/python.exe or /path/to/Python38-32/python.exe when I use python and py in command line, respectively. But that still doesn't tell whether the user entered python or py?

This should do the trick.

import psutil
import os
my_process = psutil.Process (os.getpid())
print (my_process.cmdline())