Yet another iteration at providing 'dot' access to dict items. DOES NOT COPY with copy.copy()

DotDict.py

class Mapping(dict):
    """
    Example: Map({'make': 'Toyota'}, model='Tacoma', year=1998, color='white')
    """
    def __init__(self, *args, **kwargs):
        super(Mapping, self).__init__(*args, **kwargs)
        for arg in args:
            if isinstance(arg, dict):
                for k, v in arg.iteritems():
                    self[k] = v

        if kwargs:
            for k, v in kwargs.iteritems():
                self[k] = v

    def __getattr__(self, attr):
        return self.get(attr)

    def __setattr__(self, key, value):
        self[key] = value

    def __delattr__(self, item):
        self.__delitem__(item)