provxml.py 文件源码

def deserialize(self, stream, **kwargs):
        """
        Deserialize from `PROV-XML <http://www.w3.org/TR/prov-xml/>`_
        representation to a :class:`~prov.model.ProvDocument` instance.

        :param stream: Input data.
        """
        if isinstance(stream, io.TextIOBase):
            with io.BytesIO() as buf:
                buf.write(stream.read().encode('utf-8'))
                buf.seek(0, 0)
                xml_doc = etree.parse(buf).getroot()
        else:
            xml_doc = etree.parse(stream).getroot()

        # Remove all comments.
        for c in xml_doc.xpath("//comment()"):
            p = c.getparent()
            p.remove(c)

        document = prov.model.ProvDocument()
        self.deserialize_subtree(xml_doc, document)
        return document