If you are Armin, I want to take a moment to say I love your work. This ruby-like dict class probably doesnt belong in the std python lib, but it is nice to have in pypi because of the syntactic sugar. No denying that it is kind of a leaky abstraction, one might even say a hack, but it has the potential to be useful for concisely expressing nested key-value objects, as long as the object instantiation is explicit so a reader would immediately know what they're working with. It's really easy to implement something like this by inheriting from dict and setting some magic methods, but I feel like I find myself implementing Struct classes like this for myself because it can be more elegant sometimes than nested dicts. If the python community agrees on the correct semantics for a defaultdict-like object with __getattr__ and __settattr__ implementations, it might be more elegant than the status-quo for ad-hoc objects: http://stackoverflow.com/questions/2827623/python-create-obj...