Alternatives

Products that do what FunctionCacher, a Python cache-to-disk utility does

The FunctionCacher Python utility provides a way to cache the result of a (computation- or IO-heavy) function call to a location on the filesystem, ideally onto a ramdisk/tmpfs. This allows caches to exceed the lifetime of the program, which is useful for rapid-prototyping (& rapid-crashing) scripts. Caches are generated based function name, parameters, and code. MIT Licence.

1. 1FB
   File-based cache for slow Python functions▲73

   2024 · docs.sweep.dev

2. 2PP
   Pocache, preemptive optimistic caching for Go▲97

   Hey all, I recently published this Go package, and would like to show off as well as get feedback!

   2024 · github.com

3. 3CA
   Cachegrand – a fast OSS Key-Value store built for modern hardware▲121

   I am the author of the platform, happy to reply to any question you might have! It scales up really nicely thanks to a year of research and development of the hashtable implemented in cachegrand, on the hardware used for benchmarking, an AMD EPYC 7502P, it was able to reach up to 5mln GET QPS and 4.5mln SET QPS, with batching up to 60mln GET QPS and up to 26MLN SET QPS. cachegrand is fast, it's fully Open Source, it's under a BSD 3-clause license - it can be used easily as standalone platform or incorporated in other ones without any licensing issue - and we are working to expand the Redis…

   2022 · github.com

4. 4PL
   Python library for functional programming▲129

   2017 · github.com

5. 5ZI
   ZFS Implementation in Python▲411

   2019 · github.com

6. 6TT
   Tacopy – Tail Call Optimization for Python▲95

   Nov 2025 · github.com

7. 7PC
   Pyper – Concurrent Python Made Simple▲156

   Hello and happy new year! We're excited to introduce the Pyper package for concurrency & parallelism in Python. Pyper is a flexible framework for concurrent / parallel data processing, following the functional paradigm. Source code can be found on [github](https://github.com/pyper-dev/pyper) Key features: Intuitive API: Easy to learn, easy to think about. Implements clean abstractions to seamlessly unify threaded, multiprocessed, and asynchronous work. Functional Paradigm: Python functions are the building blocks of data pipelines. Let's you write clean, reusable…

   2025 · github.com

8. 8FC
   FlakeHub Cache: Fast, secure, configurable. A new take on Nix caching▲65

   2024 · determinate.systems

9. 9PC
   Persistent caching for python functions▲5

   2017 · github.com

10. 10CH
    Cachekit – High performance caching policies library in Rust▲47

    Jan 2026 · github.com

11. 11PF
    Pogocache – Fast caching software▲93

    2025 · github.com

12. 12SP
    Sultan – Pythonic interface to your shell▲155

    2017 · sultan.readthedocs.io

13. 13PA
    Prometeo – a Python-to-C transpiler for high-performance computing▲166

    2021 · github.com

14. 14AL
    A LRU cache using go generics▲57

    2022 · github.com

15. 15PC
    PyCParser, C parser and interpreter in Python▲112

    2019 · github.com

16. 16GP
    GoCheese: Python private package repository and caching proxy▲30

    2019 · gocheese.cypherpunks.ru

17. 17OD
    On-disk B+ tree for Python 3▲159

    2018 · github.com

18. 18AP
    A Python with Hindley-Milner-like type annotations, compiling to C▲134

    2015 · github.com

19. 19RA
    Refurb – A tool for refurbishing and modernizing Python codebases▲123

    2022 · github.com

20. 20GI
    Going into freshman year, figured I should build an interpreter▲138

    Hi all! I'm going into my freshman year, and figured that the best way to prepare for the intro to programming Racket course would be to implement my own garbage-collected, dynamically typed, functional programming language in C ;) Anyways... here's the repo: https://github.com/liam-ilan/crumb I started learning C over the summer, so I still have a whole lot to learn... Any feedback would be greatly appreciated! :D

    2023

21. 21FC
    F2 – Cross-Platform CLI Batch Renaming Tool▲122

    Hey HN! I'm excited to share f2, a command-line tool I built for fast and flexible bulk renaming of files. It's cross-platform (Linux, macOS, Windows), executes a dry-run by default, supports undo, and provides great flexibility in file renaming with several built-in variables and Exiftool integration. I hope you find it useful!

    2025 · github.com

22. 22BM
    Bashcached – memcached built on bash and ncat▲84

    2016 · github.com

23. 23PL
    Python library to overload functions based on interpreter version▲45

    2021 · github.com

24. 24GA
    Gsubpy, an interpreter for subset of Python, written in Go▲65

    Recently, I write an interpreter for subset of Python using Go. I haven't seen source code of CPython, all is just written according to my understanding of Python so there may be some unusual things. Hope you can play fun with it. Any suggestion is welcome, glad to get some feedback.

    2023 · github.com

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