How to input & output parameters from command line argument

[Larz60+]

for simple input, you can use sys.argv
example:

sysargv.py

import sys

for n, item in enumerate(sys.argv):
    print(sys.argv[n]) 

running python sysargv.py one beta delta hello

Output:
sysargv.py
one
beta
delta
hello

Note: sys.argv[0] is the script name.

A better way is to use argparse: https://docs.python.org/3/howto/argparse.html