feature.py 文件源码

def sequence(self):
        """
        Returns the nucleotide sequence of self
        """
        if self.location.strand > 0:
            return SeqFeature(location = self.location).extract(self.seq)

        seq = Seq("")
        for part in reversed(self.location.parts):
            seq += SeqFeature(location = part).extract(self.seq)

        return seq