Method update

Lib/weakref.py:235–243

(self, other=None, /, **kwargs)

            return o

    def update(self, other=None, /, **kwargs):
        d = self.data
        if other is not None:
            if not hasattr(other, "items"):
                other = dict(other)
            for key, o in other.items():
                d[key] = KeyedRef(o, self._remove, key)
        for key, o in kwargs.items():
            d[key] = KeyedRef(o, self._remove, key)

    def valuerefs(self):
        """Return a list of weak references to the values.