tree-sitter-language-pack 1.4.0

Pre-compiled tree-sitter parsers for 248 programming languages with a unified process() API for parsing, analysis, and intelligent code chunking.

tree-sitter-language-pack — Python

Python bindings for tree-sitter-language-pack, providing access to 248 pre-compiled tree-sitter parsers with on-demand downloads.

Installation

pip install tree-sitter-language-pack

uv add tree-sitter-language-pack

Quick Start

from tree_sitter_language_pack import init, download, get_language, get_parser, available_languages

# Optional: Pre-download specific languages for offline use
init(["python", "javascript", "rust"])

# Get a language (auto-downloads if not cached)
language = get_language("python")

# Get a pre-configured parser (auto-downloads if needed)
parser = get_parser("python")
tree = parser.parse(b"def hello(): pass")
print(tree.root_node.sexp())

# List all available languages
for lang in available_languages():
    print(lang)

from tree_sitter_language_pack import process, ProcessConfig

# Extract file intelligence (auto-downloads language if needed)
result = process("def hello(): pass", ProcessConfig(language="python"))
print(f"Functions: {len(result['structure'])}")

# Pre-download languages for offline use
download(["python", "javascript"])

# With chunking
result = process(source, ProcessConfig(language="python", chunk_max_size=1000, comments=True))
print(f"Chunks: {len(result['chunks'])}")

API Reference

Language Discovery

• available_languages() -- list all supported language names
• has_language(name) -- check if a language is available
• language_count() -- total number of supported languages

Language Detection

• detect_language(path) -- detect language from file path
• detect_language_from_extension(ext) -- detect language from a bare file extension
• detect_language_from_path(path) -- detect language from a file path
• detect_language_from_content(content) -- detect language from shebang line
• extension_ambiguity(ext) -- check if an extension is ambiguous (returns assigned language + alternatives)

Parsing

• get_parser(name) / parse_string(source, language) -- parse source code into a syntax tree

Download API

• init(languages) -- pre-download specific languages for offline use
• download(languages) -- download parsers on demand

Intelligence

• process(source, config) -- extract structured analysis (functions, classes, imports, comments, chunks) from source code

Syntax Highlighting Queries

• get_highlights_query(language) -- get bundled highlights.scm query for a language
• get_injections_query(language) -- get bundled injections.scm query
• get_locals_query(language) -- get bundled locals.scm query

For full documentation, see kreuzberg.dev.

License

MIT -- see LICENSE for details.

---

Part of tree-sitter-language-pack -- A comprehensive collection of tree-sitter language parsers with polyglot bindings.