Can a Sequence be infinite? If so, an equality test of two nonterminating sequences would be a nonterminating operation.
Do Sized and *Reversible* imply that a sequence terminates? Could __len__ return inf?
Perhaps `Ordered` is a requisite condition for defining a comparator for Sequences. `OrderedSequence`?
Are there unordered Sequences for which a default `__eq__` / `__cmp__` (et. al) would be wrong or inappropriate?
On Fri, Jul 3, 2020, 2:08 AM Random832 random832@fastmail.com wrote:
On Wed, Jul 1, 2020, at 08:23, Joao S. O. Bueno wrote:
collections.mixins.SlicedSequence that would override `__delitem__`, `__setitem__` and `__getitem__` and handle slices could pair up with the "ComparableSequence" - people could use these "a la carte", and no backwards compatibility would be hurt.
This one raises the question of where you put the single-item accessors. And sliced __delitem__ may be difficult to implement efficiently without knowing the internals of the sequence type. _______________________________________________ Python-ideas mailing list -- python-ideas@python.org To unsubscribe send an email to python-ideas-leave@python.org https://mail.python.org/mailman3/lists/python-ideas.python.org/ Message archived at https://mail.python.org/archives/list/python-ideas@python.org/message/7HLNBV... Code of Conduct: http://python.org/psf/codeofconduct/