cli.py 文件源码

def exclusive(ctx_params, exclusive_params, error_message):
    """
    Enables defining mutually exclusive options.
    https://gist.github.com/thebopshoobop/51c4b6dce31017e797699030e3975dbf

    :param ctx_params: 
    :param exclusive_params: 
    :param error_message: 
    :return: 
    """
    if sum([1 if ctx_params[p] else 0 for p in exclusive_params]) > 1:
        raise click.UsageError(error_message)