Make Python Script Executable and Have Parameter

Question

I made a Python parser for a language I'm making, and I want the script to be executable in the terminal, I've added a shebang, and tried tried the chmod +x in the terminal, but I got an error when I typed it:

   bash: ./source.py: No file or directory

Even though the file exists.
Also, would anyone know how to add parameters/arguments to the command?

Answer 1

Your shell likely does not know to execute the script as a python script.

Add a shebang line like

#!/usr/bin/env python

as the first line of the file and try again.

To check command line parameters, for simple things you can look in sys.argv . For anything nontrivial, use the argparse module instead.