That makes perfect sense on a desktop. What is the 'path' to a dropbox file? Does it need a URL with name and password?

Along that line, what is the path to an editorial or goodreader or ios notes file?

I am also a newbie, learning Python for a Bioinformatics Algorithms course. They reccommened Python 3, so that's what I started with. I'd be happy to pay again for a Pythonista 3 version, too. The cost is not a big issue if it works.