seqprop.py 文件源码

def sequence_path(self, fasta_path):
        """Provide pointers to the paths of the FASTA file

        Args:
            fasta_path: Path to FASTA file

        """
        if not fasta_path:
            self.sequence_dir = None
            self.sequence_file = None

        else:
            if not op.exists(fasta_path):
                raise OSError('{}: file does not exist'.format(fasta_path))

            if not op.dirname(fasta_path):
                self.sequence_dir = '.'
            else:
                self.sequence_dir = op.dirname(fasta_path)
            self.sequence_file = op.basename(fasta_path)

            tmp_sr = SeqIO.read(fasta_path, 'fasta')
            if self.name == '<unknown name>':
                self.name = tmp_sr.name
            if self.description == '<unknown description>':
                self.description = tmp_sr.description
            if not self.dbxrefs:
                self.dbxrefs = tmp_sr.dbxrefs
            if not self.features:
                self.features = tmp_sr.features
            if not self.annotations:
                self.annotations = tmp_sr.annotations
            if not self.letter_annotations:
                self.letter_annotations = tmp_sr.letter_annotations