Method valuerefs

Lib/weakref.py:245–255

Return a list of weak references to the values. The references are not guaranteed to be 'live' at the time they are used, so the result of calling the references needs to be checked before being used. This can be used to avoid creating references that will cause the

(self)

            d[key] = KeyedRef(o, self._remove, key)

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

        The references are not guaranteed to be 'live' at the time
        they are used, so the result of calling the references needs
        to be checked before being used.  This can be used to avoid
        creating references that will cause the garbage collector to
        keep the values around longer than needed.

        """
        return list(self.data.copy().values())

    def __ior__(self, other):
        self.update(other)