hylang/hy

A dialect of Lisp that's embedded in Python

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Summary Information

Updated 38 minutes ago
Added to GitGenius on September 12th, 2026
Created on December 15th, 2012
Open Issues & Pull Requests: 9 (+0)
GitHub issues: Enabled
Number of forks: 384
Total Stargazers: 5,437 (+0)
Total Subscribers: 114 (+0)

Repository Insights (GitGenius)

Median issue/PR response: 3.2 hours
Mean response time: 120.6 days
90th percentile: 4.1 days
Tracked items: 46

How this project is maintained

Around half of the issues opened in the past year never receive a reply. Only 10% of issues opened in the past year have been closed. Three people close 95% of everything that gets resolved.

Charts & Analytics

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Issue Activity (beta)

Open issues: 4
New in 7 days: 0
Closed in 7 days: 0
Avg open age: 3,593 days
Stale 30+ days: 4
Stale 90+ days: 4

Recent activity

Opened in 7 days: 0
Closed in 7 days: 0
Comments in 7 days: 0
Events in 7 days: 0

Top labels

  • bug (10)
  • feature (8)
  • complaint / disgust (7)
  • doc me bro (1)

Most active issues this week

No issue events were indexed in the last 7 days.

Detailed Description

Hy is a Lisp dialect that's embedded in Python.

Hy addresses the desire to combine Lisp's expressive syntax and metaprogramming capabilities with Python's ecosystem and libraries. It works by transforming Lisp code into Python abstract syntax tree objects, allowing developers to write in Lisp while compiling directly to Python bytecode and accessing the full breadth of Python packages without translation layers or interop overhead.

Hy suits developers who want Lisp's macro system and functional programming style but need to remain within the Python ecosystem. It works well for projects where you control the codebase and can standardize on Lisp syntax, or for exploratory work where Lisp's interactive development model shines. The tool is not positioned as a replacement for Python itself but as an alternative syntax for those who prefer Lisp's approach to code organization and metaprogramming.

The project is maintained by a single individual who takes responsibility for answering user questions directed to Stack Overflow and GitHub Discussions. Development activity centers on the core compiler and language features rather than rapid feature expansion, with community engagement happening primarily through discussion channels rather than high-frequency releases.