Install the Python SDK

Prerequisites

Python 3.13 or newer. A virtual environment is recommended.

Install

pip install panproto

The wheel includes native PyO3 bindings and the core tree-sitter grammar group. Additional grammar packs are installed separately:

pip install panproto-grammars-functional   # Haskell, OCaml, Elm, Erlang, Elixir, ...
pip install panproto-grammars-web          # HTML, CSS, Vue, Svelte, ...
pip install panproto-grammars-all          # umbrella package

The full table of packs is in Reference: Python SDK.

Verification

import panproto

print(panproto.list_builtin_protocols()[:3])

The native module loads at import time (no async wrapper, unlike the TypeScript SDK). Listing a few of the built-in protocols confirms the linkage. The full top-level surface is in Reference: Python SDK.

Common mistakes

• Running under Python earlier than 3.13. The package metadata requires Python 3.13 or later.
• Importing each grammar pack manually. AstParserRegistry discovers installed packs through their panproto.grammars entry points.

See also

• Reference: Python SDK.
• Define a schema from Python.
• Tutorial: your first schema.