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MagicStack/immutables

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A high-performance immutable mapping type for Python.

4 mentions on Hacker News by 4 people: 2 stories, 2 comments · first 2018-04-02 · latest 2026-08-29

Mentions per year 4 mentions · busiest year 2018 (2)
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  1. …tps://github.com/python/cpython/blob/main/Python/hamt.c Set/Delete/Lookup are all O(log(n)) See also: https://github.com/MagicStack/immutables (for something you can actually use) p.s. I think the reason heapq isn't a type is that it's…
    comment by Retr0id · 2026-08-29 · in Time complexity of operations on Python's built-in types
  2. …[5] https://github.com/arximboldi/immer [6] https://github.com/orium/rpds [7] https://github.com/MagicStack/immutables [8] https://github.com/tobgu/pyrsistent
    comment by je42 · 2020-12-07 · in These Modern Programming Languages Will Make You Suffer
  3. ▲ 1
    A high-performance immutable Map type for Python
    story by 1st1 · 2018-04-02 · 0 comments
  4. ▲ 3
    A high-performance immutable mapping type using HAMT for Python
    story by msukmanowsky · 2018-04-02 · 0 comments