class AttrDict(object):
    def __init__(self, i=None):
        if i:
            self.__dict__.update(i)
    __contains__ = lambda self, *args: self.__dict__.__contains__(*args)
    __getitem__ = lambda self, *args: self.__dict__.__getitem__(*args)
    __setitem__ = lambda self, *args: self.__dict__.__setitem__(*args)
    __delitem__ = lambda self, *args: self.__dict__.__delitem__(*args)
    __len__ = lambda self, *args: self.__dict__.__len__(*args)
    __str__ = lambda self, *args: self.__dict__.__str__(*args)