On Wed, Jun 10, 2020 at 1:15 PM Stephen J. Turnbull firstname.lastname@example.org wrote:
Dicts are unordered, so we can distinguish dict from set by the first item (no new notation), and after that default identifiers to (name : in-scope value) items. Also some notational bikeshedding.
Be careful with this assumption. Python's dictionaries DO retain order, even if you can't easily talk about "the fifth element" , so anything that imposes requirements on the entry listed syntactically first may have consequences.
 which, as we all know, is Boron