Comment by quink

The fact that easy persistent on-disk storage other than through file streams or sqlite and the like is still not a built-in feature or a commonly used library in languages in 2013 when MUMPS did this in 1960-something then that's more a commentary on the state of things not MUMPS than the other way round.

Sure, you can do import json; json.load(open('config.json')); json['foo'] and I have code like that in production right now, but put pickle in comparison to the above and I'd know which one seems nicer, and not least of all changing ^config("foo") is fully concurrent, caching, network transversable, auditable, with Caché supporting these things like an operating system should, but in a built-in way.