hylang/hy
A dialect of Lisp that's embedded in Python observed · 2026-10-17
Health v2 · maintenance only
87/100
- Activity 100
- Release rhythm 64
- Longevity 100
Flags: no_license
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-10-21. Adoption (stars, forks) is never an input.
- gap_med: 129
- age_days: 5057
- days_rel: 81
- days_push: 4
- n_releases_24m: 4
Adoption not part of the score
5439 stars · 382 forks observed · 2026-10-17
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded
Hy is a Lisp dialect that compiles to Python AST, giving full access to Python's ecosystem in Lisp syntax. It ships with a REPL, a compiler (hyc), and a converter (hy2py), installable via pip.
Use cases
- write python code in lisp syntax
- use lisp macros with python libraries
- metaprogramming in python
- try a lisp repl on the jvm of python ecosystem
- mix functional and imperative styles in python
- compile hy programs to python bytecode
When to choose
- you want Lisp syntax and macros while using Python libraries
- you want to interoperate freely between Hy and Python code
- you want an alternative syntax for Python with syntactic simplifications
When to avoid
- your team only knows Python and you need minimal tooling friction
- you need a standalone Lisp outside the Python ecosystem
- you need guaranteed performance identical to hand-written Python in all edge cases
Facets
library · maturity active
compiler interpreter programming-language programming-languages compilers developer-tools python cross-platform cli lisp metaprogramming macros python-interop repl
4 sources
- readme: https://github.com/hylang/hy · fetched 2026-10-17 · 1efd6ac5f498
- homepage: http://hylang.org · fetched 2026-08-29 · bde54cac0d89
- registry_pypi: https://pypi.org/pypi/hy/json · fetched 2026-08-29 · 94880f0a2fec
- site_page: http://hylang.org/hy/doc · fetched 2026-08-29 · 79b61d0dd1b2
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| hylang/hy | main | 87 |
For agents
Data as of 2026-10-19T08:05:51.212177+00:00 · Report a problem