title: Simple argparse example wanted: 1 argument, 3 results
body: <p>The <a href="http://docs.python.org/library/argparse.html" rel="noreferrer">documentation</a> for the <a href="http://www.doughellmann.com/PyMOTW/argparse/" rel="noreferrer">argparse python module</a>, while excellent I'm sure, is too much for my tiny beginner brain to grasp right now. I don't need to do math on the command line or meddle with formatting lines on the screen or change option characters. All I want to do is <em>"If arg is A, do this, if B do that, if none of the above show help and quit"</em>.</p>