tree-sitter

Python bindings to the Tree-sitter parsing library

tree-sitter Permissive license Active ★ 1,485 v0.26.0 released 2026-06-30

Install

tree-sitter on PyPI

pip

pip install tree-sitter

uv

uv add tree-sitter

poetry

poetry add tree-sitter

Package facts

License	not declared (permissive)
Python support	supports the current Python release (>=3.10)
Install friction	medium — platform-specific wheel
Runtime dependencies	none
Maintenance	actively maintained — 44 days since the last release
Last repo commit	2026-08-08
First released	2019-03-21
Popularity	one of the top 1,000 most-downloaded packages on PyPI (30-day window, as of 2026-08-13)
Known vulnerabilities	none known (OSV.dev, checked 2026-08-13)

Evidence: tree_sitter-0.26.0-cp310-cp310-macosx_10_9_x86_64.whl; tree_sitter-0.26.0-cp310-cp310-macosx_11_0_arm64.whl; tree_sitter-0.26.0-cp310-cp310-manylinux2014_aarch64.manylinux_2_17_aarch64.manylinux_2_28_aarch64.whl; tree_sitter-0.26.0-cp310-cp310-manylinux2014_x86_64.manylinux_2_17_x86_64.manylinux_2_28_x86_64.whl; tree_sitter-0.26.0-cp310-cp310-manylinux_2_31_riscv64.manylinux_2_39_riscv64.whl; tree_sitter-0.26.0-cp310-cp310-musllinux_1_2_x86_64.whl; tree_sitter-0.26.0-cp310-cp310-win_amd64.whl; tree_sitter-0.26.0-cp310-cp310-win_arm64.whl; tree_sitter-0.26.0-cp311-cp311-macosx_10_9_x86_64.whl; tree_sitter-0.26.0-cp311-cp311-macosx_11_0_arm64.whl; tree_sitter-0.26.0-cp311-cp311-manylinux2014_aarch64.manylinux_2_17_aarch64.manylinux_2_28_aarch64.whl; tree_sitter-0.26.0-cp311-cp311-manylinux2014_x86_64.manylinux_2_17_x86_64.manylinux_2_28_x86_64.whl; tree_sitter-0.26.0-cp311-cp311-manylinux_2_31_riscv64.manylinux_2_39_riscv64.whl; tree_sitter-0.26.0-cp311-cp311-musllinux_1_2_x86_64.whl; tree_sitter-0.26.0-cp311-cp311-win_amd64.whl; tree_sitter-0.26.0-cp311-cp311-win_arm64.whl; tree_sitter-0.26.0-cp312-cp312-macosx_10_13_x86_64.whl; tree_sitter-0.26.0-cp312-cp312-macosx_11_0_arm64.whl; tree_sitter-0.26.0-cp312-cp312-manylinux2014_aarch64.manylinux_2_17_aarch64.manylinux_2_28_aarch64.whl; tree_sitter-0.26.0-cp312-cp312-manylinux2014_x86_64.manylinux_2_17_x86_64.manylinux_2_28_x86_64.whl

Keywords: incremental, parsing, tree-sitter

Intended Audience :: DevelopersLicense :: OSI Approved :: MIT LicenseOperating System :: OS IndependentProgramming Language :: CProgramming Language :: PythonTopic :: Software Development :: CompilersTopic :: Text Processing :: LinguisticTyping :: Typed

About tree-sitter

from the package's own PyPI description — quoted content, verbatim

Python Tree-sitter

![CI][ci] ![pypi][pypi] ![docs][docs]

This module provides Python bindings to the [tree-sitter] parsing library.

Installation

The package has no library dependencies and provides pre-compiled wheels for all major platforms.

> [!NOTE] > If your platform is not currently supported, please submit an [issue] on GitHub.

pip install tree-sitter

Usage

Setup

Install languages

Tree-sitter language implementations also provide pre-compiled binary wheels. Let's take [Python][tree-sitter-python] as an example.

pip install tree-sitter-python

Then, you can load it as a Language object:

import tree_sitter_python as tspython
from tree_sitter import Language, Parser

PY_LANGUAGE = Language(tspython.language())

Basic parsing

Create a Parser and configure it to use a language:

parser = Parser(PY_LANGUAGE)

Parse some source code:

```python tree = parser.parse( bytes( """ def foo(): if bar: baz() """,...

Read as markdown · JSON record · Source repository · Homepage · Docs

AI interpretation — verify before relying

AI-generated interpretation of the package facts above; every digit, version, license, or vulnerability id it cites is grounded in the facts already shown on this page

Python bindings to the tree-sitter incremental parsing library, enabling syntax tree construction and traversal for code analysis across multiple programming languages.

Medium install friction due to compiled wheels, but well-supported across platforms (Python 3.10 and later, macOS, Linux, Windows, ARM/RISC-V). Active maintenance with release 44 days ago and 1485 GitHub stars.

Permissive license treatment allows use in commercial and proprietary projects without restriction.

Usage

pip install tree-sitter

from tree_sitter import Language, Parser

parser = Parser()
tree = parser.parse(b'def foo():\n    pass')

Requires Python >=3.10; language grammar packages must be installed separately to configure the parser.

Verdict: Stable, actively maintained parser binding with zero known vulnerabilities and broad platform coverage. No runtime dependencies and permissive licensing make it suitable for production use. Medium install friction is manageable via pre-built wheels across major platforms.

Needs verification

Whether language grammar packages are maintained at the same cadence as the core binding.
Performance characteristics for large codebases or real-time parsing scenarios.
Specific MIT license details, as license_raw and license_spdx are not populated in the fact sheet.

incremental parsing librarysyntax tree constructiontree-sitter bindingscode parsing and analysislanguage-agnostic parserAST generationsource code parsing