Interpreter command line options: '-c', '-i' and '-m'

Python (interpreter) supports the following command line options:

-c cmd : program passed in as string (terminates option list)

-i     : inspect interactively after running script; forces a prompt even
         if stdin does not appear to be a terminal; also PYTHONINSPECT=x

and

-m mod : run library module as a script (terminates option list)
