Question

If there will be a small number of files it should be easy with a recursive function to pass through all the files and add the size but what if there are lots of files, and by lots i really mean lots of files.

Answer 1

You mean something like this?

import os for path, dirs, files in os.walk( root ):     for f in files:         print path, f, os.path.getsize( os.path.join( path, f ) )