def handle_aligns(aligns):
    """Converts comma delimited string of alignments to tuple

    Arguments:
        aligns: comma delimited string of 'l', 'r', 'c' or empty string
    Returns:
        aligns_tuple: tuple of alignments or None
    """
    if not aligns:
        aligns_tuple = None
    else:
        aligns_tuple = tuple(aligns.lower().replace(" ", "").split(","))
    return aligns_tuple