Method issubset

dns/set.py:276–287

Is this set a subset of *other*? Returns a ``bool``.

(self, other)

            del self.items[self[i]]

    def issubset(self, other):
        """Is this set a subset of *other*?

        Returns a ``bool``.
        """

        if not isinstance(other, Set):
            raise ValueError("other must be a Set instance")
        for item in self.items:
            if item not in other.items:
                return False
        return True

    def issuperset(self, other):
        """Is this set a superset of *other*?