More elegant way to cwd?

[Kamilche]

> For "library" modules there are already other and more elegant means.
> 
> -Peter

Well, I want to make a script execute without error regardless of where 
the current working directory is, and without having to make the user 
modify their PYTHONPATH variable or install something in site-packages.

Is there a way to let the user just 'drag the folder' anywhere on their 
hard drive, and have it work, without having to modify any special 
system variables?