11 def join(*paths):  argument
13     return os.path.normpath("/".join(paths))
268 def is_path_parent(possible_parent, *paths):  argument
282     if not paths:
284     for path in paths:
298     paths = (path or os.environ.get('PATH', os.defpath)).split(':')
300         paths.reverse()
303     for index, element in enumerate(paths):
317                         files.append((found_path, [os.path.join(p, rel) for p in paths[:index+1]]))
323 def canonicalize(paths, sep=','):  argument
338     for path in (paths or '').split(sep):