io.py 文件源码

def _compose_paths(exon_dict, path_dict, number_of_ns):
    ns = "N" * number_of_ns
    for transcript_id, exon_list in sorted(path_dict.items()):
        exon_seqs = [str(exon_dict[exon_id].seq) for exon_id in exon_list]
        yield SeqRecord(
            id=transcript_id,
            description=",".join(exon_list),
            seq=Seq(ns.join(exon_seqs))
        )