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Pyfun

v0.2.0 · by Simon Treanor · added 3 November 2026

Pyfun language support: Tree-sitter syntax highlighting and the pyfun language server.

LanguagesLanguage servers
Install in Forge SuperView the source

How to install

With Forge Super installed, the button above opens the app on this extension, where you press Install. Nothing is installed until you do.

You can also open the Extensions panel in the app and search for Pyfun. The extension's id is pyfun.

Don't have Forge Super yet? Download it here.

README

From the extension's repository, written by its authors and not by Mentenaz. See the source.

Pyfun for Zed

Zed extension for Pyfun: Tree-sitter syntax highlighting (sourced from editors/tree-sitter-pyfun), outline, brackets, and the pyfun lsp language server (diagnostics, hover types/effects, go-to-definition, rename, completion).

Prerequisite: pyfun on your PATH (pip install pyfun-lang).

Install (dev extension)

Until the extension is on the Zed registry, install it as a dev extension — Zed compiles it locally (needs a Rust toolchain with the wasm32-wasip2 target: rustup target add wasm32-wasip2, or the install fails with "failed to compile Rust extension"):

  1. Clone this repo.
  2. In Zed: Extensions (ctrl-shift-x / cmd-shift-x) → Install Dev Extension → select the editors/zed directory.
  3. Open a .pyfun file.

Maintenance notes

  • extension.toml pins the grammar by commit (rev) with path pointing at the grammar's subdirectory of this repo — bump rev when the grammar changes.
  • languages/pyfun/highlights.scm is the Zed-dialect twin of editors/tree-sitter-pyfun/queries/highlights.scm; keep them in sync.
  • Registry publication = PR to zed-industries/extensions adding this directory as a submodule entry.