 at least some unclassified data
    outdir : str or pathlib.Path
        Directory to save file. Filename will be generated automatically based on today&#39;s date.

    Returns
    -------
    stillNeededDF : pandas.DataFrame
        Dataframe containing only unclassified terms, and the number of times they occur
    &#34;&#34;&#34;
    import pathlib
    
    
    if isinstance(outdir, pathlib.PurePath):
        if not outdir.is_dir() or not outdir.exists():
            print(&#39;Please specify a valid 