Comment by baq

Comment by baq 10 months ago

2 replies

dicts ordering keys in insertion order isn't an implementation detail anymore and hasn't been for years.

nick238 10 months ago

I get that all dicts are now effectively an `collections.OrderedDict`, but I've never seen practical code that uses the insertion order. You can't do much with that info (no `.pop()`, can't sort a dict without recreating it) beyond maybe helping readability when you print or serialize it.

  • funny_falcon 10 months ago

    Readability, reproducibility, and simple LRU.

    Reproducibility matters for tests, they become simpler. Some other algorithms become simpler as well.

    LRU is just a dict with preserving order: on access just delete and insert again.