Use python more fluently; DRY - use functions to avoid repetition; use
dict-comprehensions; use os.path.join() in preference to arithmetic
with path strings; use elsif to avoid the need for a local variable;
set() can take a generator directly, no need to go via a list; don't
end lines in semicolon (this is python). Test isdir() once instead of
exists() twice on the same name.
Just, generally, use python's feature-set.
Change-Id: Ib114aa016f70b3be09e968d9cfc069b057f49d41
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
267edbec19