def _get_max_word_per_col(csv_dict) ->dict:
    """Computes the maximum word lengthin for each column

    Arguments:
        csv_dict: a dictionary whose keys are column numbers and values are column lists

    Returns:
        word_length_dict: a dictionary whose keys are column numbers and whose values are the maximum word length for that column
    """
    word_length_dict = {}
    for key in csv_dict:
        max_word_length = 0
        for val in csv_dict[key]:
            if len(val) > max_word_length:
                max_word_length = len(val)
        word_length_dict[key] = max_word_length
    return word_length_dict
