Method __init__

Lib/weakref.py:309–320

(self, dict=None)

    """

    def __init__(self, dict=None):
        self.data = {}
        def remove(k, selfref=ref(self)):
            self = selfref()
            if self is not None:
                try:
                    del self.data[k]
                except KeyError:
                    pass
        self._remove = remove
        if dict is not None:
            self.update(dict)

    def __delitem__(self, key):
        del self.data[ref(key)]