Dev tools · alternatives · 2026

24 alternatives to (Eacc) PLY Lex-Yacc alternative in Python

Minimalist but flexible Lexer/Parser tool in Python. - iogf/eacc

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. (Eacc) PLY Lex-Yacc alternative in Python launched in 2020; newer entries below may have overtaken it.

1. 1
   Eacc - A new manner to write lexers/parsers in Python▲7

   Minimalist but flexible Lexer/Parser tool in Python. - iogf/eacc

   2021 · github.com · its alternatives →

2. 2
   Using functions to construct Regex in Python▲105

   Python to Regex. Regex to Python. The yRegex for humans. - iogf/crocs

   2017 · github.com · its alternatives →

3. 3
   Lambda-8cc – An x86 C compiler written in untyped lambda calculus▲249

   x86 C compiler written in untyped lambda calculus. Contribute to woodrush/lambda-8cc development by creating an account on GitHub.

   2022 · github.com · its alternatives →

4. 4
   Xcc700: Self-hosting mini C compiler for ESP32 (Xtensa) in 700 lines▲154

   Repo: https://github.com/valdanylchuk/xcc700 Hi Everyone! I just wrote my first compiler! - single pass, recursive descent, direct emission - generates REL ELF binaries, runnable using ESP-IDF elf_loader - very basic features only, just enough for self-hosting - treats the Xtensa CPU as a stack machine for simplicity, no register allocation / window usage - compilable on Mac, probably also Linux, can cross-compile for esp32 there - wrote for fun / cyberdeck project Sample output from esp32: xcc700.elf xcc700.c -o /d/cc.elf [ xcc700 ] BUILD COMPLETED >…

   Dec 2025 · github.com · its alternatives →

5. 5CV
   CFR[]: Very minimal drawing language with 5 commands: C, F, R, [, ]▲176

   2023 · susam.net · its alternatives →

6. 6
   Pythonpy – the swiss army knife of the command line▲220

   2014 · github.com · its alternatives →

7. 7
   A simple, highly commented, rootkit which attacks GCC and Python▲94

   2014 · github.com · its alternatives →

8. 8
   PyCParser, C parser and interpreter in Python▲112

   C parser and interpreter written in Python with automatic ctypes interface generation - PyCParser/README.md at master · albertz/PyCParser

   2019 · github.com · its alternatives →

9. 9
   Emacs org mode integration with IPython▲92

   org-babel integration with Jupyter for evaluation of (Python by default) code blocks - gregsexton/ob-ipython

   2015 · github.com · its alternatives →

10. 10AL
    a lexer, parser, interpreter and web runtime (np, a 5-weekend project)▲122

    2013 · np-lang.org · its alternatives →

11. 11
    A Python with Hindley-Milner-like type annotations, compiling to C▲134

    a python-like language with hindley-milner-like type system, which is compiled to c - alehander92/Airtight

    2015 · github.com · its alternatives →

12. 12
    Python package and CLI to generate stylistic word clouds▲112

    Python package + CLI to generate stylistic wordclouds, including gradients and icon shapes! - minimaxir/stylecloud

    2019 · github.com · its alternatives →

13. 13
    Python decorator that enables arbitrarily-deep tail/non-tail recursion▲119

    Contribute to tylerhou/fiber development by creating an account on GitHub.

    2021 · github.com · its alternatives →

14. 14
    E-- – A language you dial between English and Python▲29

    Contribute to frmoded/e-- development by creating an account on GitHub.

    Jul 2026 · github.com · its alternatives →

15. 15
    A toy interpreter for a minimalistic imperative language in 1.3k LoC▲17

    A hackable and extensible lexer, parser and interpreter for a minimalistic, imperative, C-like language. - bbu/simple-interpreter

    2015 · github.com · its alternatives →

16. 16
    SpaCy – Build tomorrow's language technology products with Python▲93

    spaCy is a free open-source library for Natural Language Processing in Python. It features NER, POS tagging, dependency parsing, word vectors and more.

    2015 · spacy.io · its alternatives →

17. 17
    Lexy▲7

    Lexy is a lightweight CLI tool that fetches programming tutorials from "Learn X in Y Minutes" directly into your terminal. Quickly search, learn, and reference code examples without leaving your workflow. - antoniorodr/lexy

    2025 · github.com · its alternatives →

18. 18
    Using Parsing Expression Grammars to rewrite source code▲63

    An example of PEG usage. Contribute to sebcat/move-literals development by creating an account on GitHub.

    2016 · github.com · its alternatives →

19. 19IB
    I built a parser and lexer generator for Go▲5

    Lox is a parser and lexer generator for Go. Heavily inspired on ANTLR on the surface (combined parser and lexer, action code separated from grammar), but more similar to yacc on the internals (LR(1), dependency-free parser). I'm especially proud of the type-safe Go action generation where the reduce-artifact's Go type is determined by the user-action's return type, and then used to match and verify its use in other productions.

    2025 · dcaiafa.github.io · its alternatives →

20. 20
    Crocs – Write regex using python code▲17

    Python to Regex. Regex to Python. The yRegex for humans. - iogf/crocs

    2018 · github.com · its alternatives →

21. 21AC
    a compiler from Python syntax to JavaScript syntax (like CoffeeScript)▲32

    2010 · pyxc.org · its alternatives →

22. 22IC
    Inline C in Python▲14

    2015 · quasiquotes.readthedocs.org · its alternatives →

23. 23
    Copy-and-patch compiler for hard real-time Python▲65

    I built Copapy as an experiment: Can Python be used for hard real-time systems? Instead of an interpreter or JIT, Copapy builds a computation graph by tracing Python code and uses a custom copy-and-patch compiler. The result is very fast native code with no GC, no syscalls, and no memory allocations at runtime. The copy-and-patch compiler currently supports x86_64 as well as 32- and 64-bit ARM. It comes as small Python package with no other dependencies - no cross-compiler, nothing except Python. The current focus is on robotics and control systems in general. This project is early but…

    Feb 2026 · github.com · its alternatives →

24. 24
    Yantra – an LALR(1) parser generator for C++▲33

    A C++ parser generator: lexer, parser, and AST generation in one tool. - TantrixAuto/yantra

    22d ago · github.com · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →