PyO3/maturin

Support for wasm32-wasi

Open

#2,338 opened on Nov 29, 2024

View on GitHub
 (2 comments) (0 reactions) (0 assignees)Rust (420 forks)auto 404
help wantedtarget/wasm

Repository metrics

Stars
 (5,692 stars)
PR merge metrics
 (PR metrics pending)

Description

As of Python 3.13, the wasm32-wasi target is a tier 2 platform: https://peps.python.org/pep-0011/#tier-2 What would be needed for wasm32-wasi to be supported by maturin? I have seen it mentioned in earlier issues, so maybe now would be a good time to research this: https://github.com/PyO3/maturin/issues/904#issuecomment-1168198633

I am trying to use certain packages that use maturin to build python dynamic modules, and having wasm32-wasi support would help these packages become wasm32-wasi compatible.

Thank you for your help 😄

Contributor guide

Research direction
Investigate the current state of wasm32 wasi support in the Rust ecosystem (e.g., rustup targets, std library support) and how maturin handles cross compilation for other targets. Look into the Python side: wasm32 wasi Python builds and how dynamic modules are loaded. Explore the referenced issue #904 and PEP 11 for tier 2 platform requirements. Determine what changes are needed in maturin to compile and link for wasm32 wasi.
Tech stack
rust
Domain
build systembackend
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
4
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
3-5 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
RustPythonCross compilation
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
30