__getattr__ of DotNotationDict should raise AttributeError

[svisser]

For correctness, the __getattr__ method of DotNotationDict needs to raise an AttributeError when the attribute does not exist. Otherwise, you can't write getattr(my_dict, 'attr_does_not_exit', 100) (it'll raise KeyError, it won't return to you the default value).

[joealcorn]

Right you are, thanks