Python 3.6 dict key iteration order

[buran]

Note that it's not sorted, but order-preserving. These are two different things. Also it is considered implementation details and should not be relied upon. So the iteration is "correct".

The order-preserving aspect of this new implementation is considered an implementation detail and should not be relied upon (this may change in the future, but it is desired to have this new dict implementation in the language for a few releases before changing the language spec to mandate order-preserving semantics for all current and future Python implementations; this also helps preserve backwards-compatibility with older versions of the language where random iteration order is still in effect, e.g. Python 3.5).

All that said are you certain you are using 3.6?