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tree-sitter-language-pack

Extensive Language Pack for Tree-Sitter

0.6.0
PyPI
Maintainers
1

Tree Sitter Language Pack

This package bundles a comprehensive collection of tree-sitter languages as both source distribution and pre-built wheels.

Installation

pip install tree-sitter-language-pack

Important Notes:

  • This package started life as a maintained and updated fork of tree-sitter-languages by Grant Jenks, and it incorporates code contributed by ObserverOfTime (see this PR).
  • This package is MIT licensed and the original package of which this is a fork has an Apache 2.0 License. Both licenses are available in the LICENSE file.
  • All languages bundled by this package are licensed under permissive open-source licenses (MIT, Apache 2.0 etc.) only - no GPL licensed languages are included.

Features

  • 100+ Languages: Support for all major programming languages and many domain-specific languages
  • Pre-built Wheels: Easy installation with no compilation required
  • Type-Safe: Full typing support for better IDE integration and code safety
  • Zero GPL Dependencies: All bundled languages use permissive licenses (MIT, Apache 2.0, etc.)

Usage

This library exposes two functions get_language and get_parser.

from tree_sitter_language_pack import get_binding, get_language, get_parser

python_binding = get_binding('python')  # this is a pycapsule object pointing to the C binding
python_lang = get_language('python')  # this is an instance of tree_sitter.Language
python_parser = get_parser('python')  # this is an instance of tree_sitter.Parser

See the list of available languages below to get the name of the language you want to use.

Available Languages:

Each language below is identified by the key used to retrieve it from the get_language and get_parser functions.

Contribution

This library is open to contribution. Feel free to open issues or submit PRs. It's better to discuss issues before submitting PRs to avoid disappointment.

Local Development

  • Clone the repo
  • Install the system dependencies
  • Install the full dependencies with uv sync --no-install-project
  • Install the pre-commit hooks with:
    pre-commit install && pre-commit install --hook-type commit-msg
    
  • Clone the vendors with uv run --no-sync scripts/clone_vendors.py
  • Build the local extensions with PROJECT_ROOT=. uv run setup.py build_ext --inplace

Running Tests

To run the tests, execute the following command:

PROJECT_ROOT=. uv run --no-sync pytest tests

Adding a new language

Install

Some bindings are installed via UV and are added to the package dependencies in the pyproject.toml file.

To add an installed package follow these steps:

  • Install the bindings with uv add <bindings_package_name> --no-install-project.
  • Execute the cloning script with uv run --no-sync scripts/clone_vendors.py.
  • Update both the literal type InstalledBindings and the installed_bindings_map dictionary in the __init .py _ file.
  • Update the code in the init file as necessary.
  • Build the bindings by executing: uv run --no-sync setup.py build_ext --inplace.
  • Execute the tests (see above).
  • If the tests pass, commit your changes and open a pull request.
Adding a Binary Wheel Language
  • Add the language to the sources/language_definitions.json file at the repository's root. This file contains a mapping of language names to their respective repositories:
    {
      "name": {
        "repo": "https://github.com/...",
        "branch": "master", // not mandatory
        "directory": "sub-dir/something", // not mandatory
        "generate": true, // not mandatory
      },
    }
    
    • repo is the URL of the tree-sitter repository. This value is mandatory
    • branch the branch of the repository to check out. You should specify this only when the branch is not called main ( i.e. for master or other names, specify this).
    • directory is the directory under which there is an src folder. This should be specified only in cases where the src folder is not immediately under the root folder.
    • generate is a flag that dictates whether the tree-sitter-cli generate command should be executed in the given repository / directory combo. This should be specified only if the binding needs to be built in the repository.
  • Update the SupportedLanguage literal type in the init.py file.
  • Install the dev dependencies with uv sync --no-install-project -v
  • Execute the cloning script with uv run --no-sync scripts/clone_vendors.py.
  • Build the bindings by executing: PROJECT_ROOT=. uv run setup.py build_ext --inplace.
  • Execute the tests (see above).
  • If the tests pass, commit your changes and open a pull request.

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