The problem isn't that .keys() isn't returning them in order. The problem is that the kwargs (a=1, b=2) aren't passed to OrderedDict() in order, so the construc

The problem isn't that .keys() isn't returning them in order. The problem is that the kwargs (a=1, b=2) aren't passed to OrderedDict() in order, so the constructor has no way of knowing which one should be first.