On Thu, May 20, 2021 at 6:21 AM Tal Einat <taleinat@gmail.com> wrote:
Just add a ._uuid attribute and have object equality follow equality of
On Sat, May 15, 2021 at 2:09 AM David Mertz <mertz@gnosis.cx> wrote: that attribute. There's no reason to expose that in the .__repr__, but it would be inspectable in concept.
I think it's worth preserving the idiom of comparing sentinels using `is`, as we do for `None` and other existing sentinel values. It's relatively easy to do, such as by using a single-value Enum or by using a class with a custom __new__.
This only works if: a) Unpickling is within a single interpreter session b) Sentinels are explicitly created in imported modules, not as a runtime, user-level creation Maybe there's a way to do it, but how would you handle this situation: if some_runtime_condition: my_sentinal = Sentinel(desc="Gosh, I need a sentinel") # ... code ... pickle.dump(thing_using_sentinel, fh) Equality is certainly a lot easier to get than identity here. -- The dead increasingly dominate and strangle both the living and the not-yet born. Vampiric capital and undead corporate persons abuse the lives and control the thoughts of homo faber. Ideas, once born, become abortifacients against new conceptions.