def unique_sequence_list(bio_record):
    """checks a biopython seq list for dublicates"""
    unique_seq_list = []
    unique_rec_list = []
    for rec in bio_record:
        if rec.seq in unique_seq_list:
            print(rec.id + rec.name + rec.description +
                ' sequence is a dublicate and thefore discarded')
        else:
            unique_seq_list.append(rec.seq)
            unique_rec_list.append(rec)
    return unique_rec_list
