class QueryDict(dict):
    """dot.notation access to dictionary attributes"""

    def __getattr__(self, attr):
        try:
            return self.__getitem__(attr)
        except KeyError:
            raise AttributeError(
                "%r object has no attribute %r" % (self.__class__.__name__, attr)
            )

    def __setattr__(self, attr, value):
        self.__setitem__(attr, value)