+1 on (lazy) Sequence views optimized for sequential reads and random access (which hide the dict implementation which varies across which platforms?)

I'm somewhat indifferent on the name:

# Sequence views names:

## method() -> Sequence

- orderedkeys(), orderedvalues(), ordereditems()

- okeys(), ovalues(), oitems()

- keys(), keysordered(), values(), valuesordered(), items(), itemsordered()

  - What does this do with tab-completion?