PyCS/pycs/observable/ObservableDict.py

from .Observable import Observable


class ObservableDict(dict, Observable):
    def __init__(self, obj: dict, parent: Observable = None):
        dict.__init__(self)
        Observable.__init__(self, parent)

        for key in obj.keys():
            self[key] = Observable.create(obj[key], self)

    def __setitem__(self, key, value):
        dict.__setitem__(self, key, Observable.create(value, self))
        Observable._notify(self)

    def __delitem__(self, key):
        super().__delitem__(key)
        Observable._notify(self)