Absolute vs relative file paths

Hi,

I'm struggling to get this wrapper lib work. It seems that if I provide relative paths to disk resources it works just fine. But when I want to use absolute ones, it just doesn't.

Is this somehow expected? To be fair, that's not a big deal: one can always use `os.path.realpath()`, but I was wondering whether you could tell me more about why that's happening.

Thanks,
Michele.