From: Chris Hulan <chris.hulan@...>
Date: 2011-10-14T23:15:55+09:00
Subject: Re: What’s the best way of checking if an argument has been given or not?

You said you didn't want to manually do it, this lets the interpreter
do it for you.

Maybe a more realistic example would clarify why having to do some
work to achieve this seems
too much effort?