tree-sitter/py-tree-sitter

Support the free-threaded build

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#458 opened on May 22, 2026

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help wanted

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Description

Currently there are no wheels for free-threaded Python available on PyPI for tree-sitter. It does quickly build from source, but any environment without compilers won't be able to install it without binaries available.

I tried running the example in the readme but quickly ran into issues in tree-sitter-python: https://github.com/tree-sitter/tree-sitter-python/issues/337

Contributor guide

Research direction
Investigate how to configure cibuildwheel to build free threaded Python wheels and ensure the C extension is compatible with free threaded mode.
Tech stack
python
Domain
build systemrelease
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
Python packagingCI/CD
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
60