Total newbie question: Best practice

[Colin Higwell]

Hi,

I am just starting to learn Python (I have been at it only a few hours), 
so please bear with me. I have a few very small scripts (do you call them 
scripts or programs?) which work properly, and produce the results 
intended.

However, they are monolithic in nature; i.e. they begin at the beginning 
and finish at the end. Having done a little reading, I note that it seems 
to be quite common to have a function main() at the start (which in turn 
calls other functions as appropriate), and then to call main() to do the 
work. 

Is that standard best practice?

Thanks