reftools.py 文件源码

def chromosome_lengths(self):
        """
        Returns
        -------

        tuple
            Chromosome lengths ordered by sequence order in fasta

        """
        fastafile = pysam.FastaFile(self.filepath)
        lengths = fastafile.lengths
        fastafile.close()
        # pysam's .lengths does not return a tuple (despite what is in the docs),
        # so, convert to tuple before returning.
        return tuple(lengths)