validation.py 文件源码

def dirname_is_existing_dir(path: str) -> str:
    """
    >>> import tempfile

    >>> with tempfile.TemporaryDirectory() as dir:
    ...     dirname_is_existing_dir(dir) == dir
    True

    >>> dirname_is_existing_dir('/non/existing/dir')
    Traceback (most recent call last):
    argparse.ArgumentTypeError: Dirname of path is not an existing directory.
    """

    if isdir(dirname(abspath(path))):
        return path
    else:
        raise ArgumentTypeError("Dirname of path is not an existing directory.")