import os dirs = [ ('graphicsItems', 'graphicsItems'), ('3dgraphics', 'opengl/items'), ('widgets', 'widgets'), ] path = os.path.join(os.path.dirname(os.path.abspath(__file__)), '..') for a, b in dirs: rst = [os.path.splitext(x)[0].lower() for x in os.listdir(os.path.join(path, 'documentation', 'source', a))] py = [os.path.splitext(x)[0].lower() for x in os.listdir(os.path.join(path, b))] print(a) for x in set(py) - set(rst): print( " ", x)