def METHOD_NAME(pathnames: list):
    """
    Processes all logfiles present in the list of pathnames
    """
    paths = []
    data = {}
    for pathname in pathnames:
        paths.append(pathlib.Path(pathname))
    for path in paths:
        if path.is_dir():
            data[path.name] = process_directory(path)
        elif path.is_file():
            data[path.name] = process_file(path)
        else:
            raise AttributeError(f"{path.name} is not a file or directory")
    comparisons = generate_comparison(data)
    return data, comparisons