Method replace_rdataset

dns/node.py:265–289

Replace an rdataset. It is not an error if there is no rdataset matching *replacement*. Ownership of the *replacement* object is transferred to the node; in other words, this method does not store a copy of *replacement* at the node, it stores *replacement* itself.

(self, replacement: dns.rdataset.Rdataset)

            self.rdatasets.remove(rds)

    def replace_rdataset(self, replacement: dns.rdataset.Rdataset) -> None:
        """Replace an rdataset.

        It is not an error if there is no rdataset matching *replacement*.

        Ownership of the *replacement* object is transferred to the node;
        in other words, this method does not store a copy of *replacement*
        at the node, it stores *replacement* itself.

        *replacement*, a ``dns.rdataset.Rdataset``.

        Raises ``ValueError`` if *replacement* is not a
        ``dns.rdataset.Rdataset``.
        """

        if not isinstance(replacement, dns.rdataset.Rdataset):
            raise ValueError("replacement is not an rdataset")
        if isinstance(replacement, dns.rrset.RRset):
            # RRsets are not good replacements as the match() method
            # is not compatible.
            replacement = replacement.to_rdataset()
        self.delete_rdataset(
            replacement.rdclass, replacement.rdtype, replacement.covers
        )
        self._append_rdataset(replacement)

    def classify(self) -> NodeKind:
        """Classify a node.