Ordering is based on internal dictionary implementation

[Ferguzz]

Correct me if I'm wrong, but doesn't the following code rely purely on the internal implementation of the dict to order the keys in the correct way (0, 1, 2, 3, ..., -3, -2, -1)?

for key, ordered_items in grouped_items.items():

            if unordered_items and prev_key >= 0 and key < 0:

                sorted_items.extend(unordered_items)
                unordered_items = None

            prev_key = key

            sorted_items.extend(ordered_items)

        if unordered_items:
            sorted_items.extend(unordered_items)

[ftobia]

I believe #26 addresses this.