[Tutor] opts and try except

[Eric Walker]

All,
I have a program now that works just like I want it. Now I want to 
integerate something to say print usage info when the user puts in the wrong 
number or type of options. Also print usage say if you type program name and 
-h or -H. I currently just have functions defined and at the bottom make a 
function call. Do I need to do like the def main(): and then the if __name__ 
== "__main__"? I need an example of how to implement this. 

Thanks in advance.


python newbie.....