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Comment by diN0bot | Hacker News Reader

question: does the following expression still evaluate to True with ordered dicts?

    {'a':1, 'b':2}  ==  {'b':2, 'a':1}

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nevermind, i thought this was a future change, but it's already live. i've been using 3.7.4, and can confirm that two dictionaries with equivalent key,value pairs, even if inserted in a different order, are considered abstractly equal.

this coincidentally came up for me this morning on a small interview challenge: https://dev.to/candidateplanet/comment/l8o2

Yes. Dict comparison doesn't rely on iteration order.

thanks :-)

i mean, i would hope not if it's an implementation detail and not a change in the abstraction itself... feels a bit like it is breaking the abstraction, though.

The definition of a dict hasn't changed. It's still defined as a set of key:value pairs. It just happens to also have a particular guarantee now that iterating over the keys will return them in insertion order.

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