wifi-densepose/python/README.md

wifi-densepose v2.x — PyO3 bindings for the Rust core

This directory contains the source for the wifi-densepose PyPI wheel (v2.0+). It's a PyO3 + maturin build that wraps the Rust crates in v2/crates/ and replaces the legacy pure-Python wifi-densepose==1.1.0 (released 2025-06-07).

See ADR-117 for the full modernization plan.

Build locally

# Install maturin + dev deps
pip install maturin pytest

# Develop-install — builds the Rust extension in-place
cd python
maturin develop

# Run the smoke tests
pytest tests/

The maturin develop command produces a debug-build wheel installed into your current Python environment. For release builds:

maturin build --release --strip

The wheel lands under python/target/wheels/.

Layout

python/
├── Cargo.toml                    # PyO3 + abi3-py310 + Rust deps
├── pyproject.toml                # maturin backend + Python metadata
├── README.md                     # this file
├── src/
│   └── lib.rs                    # #[pymodule] — Rust binding glue
├── wifi_densepose/               # pure-Python facade (the user-facing API)
│   ├── __init__.py               # re-exports compiled module symbols
│   └── py.typed                  # PEP 561 typed-package marker
└── tests/
    └── test_smoke.py             # P1 acceptance tests

Phase status (per ADR-117 §6)

• ✅ P1 — Scaffold: module loads, version constant exposed, 6 smoke tests pass via maturin develop.
• ✅ P2 — Core type bindings: Keypoint, KeypointType, BoundingBox, PersonPose, PoseEstimate. 51 additional tests.
• ✅ P3 — Vitals + signal DSP: VitalStatus, VitalEstimate, VitalReading, BreathingExtractor, HeartRateExtractor with py.allow_threads GIL release on hot loops (Q5 tokio audit on 2026-05-24 confirmed core/vitals/signal are pure-sync). 17 tests.
• ✅ P3.5 — BFLD bindings (stub Rust): BfldKind, BfldFrame, BfldReport — forward-compatible Python surface for 802.11ac/ax/be Beamforming Feedback Loop Data. numpy Complex64 bridge. 19 tests. Real Rust ingestion lands post-v2.0 in a wifi-densepose-bfld crate (see ADR-117 §11.11/12); the Python API does not change.
• ⏳ P4 — WS/MQTT client: pure-Python wifi_densepose.client extra.
• ⏳ P5 — cibuildwheel + PyPI publish: Linux/macOS/Windows × abi3-py310.
• ⏳ P-tomb — v1.99.0 tombstone wheel: pure-Python ImportError with migration URL, published to PyPI to soft-fence v1.x users before v2.0 ships.

Each phase ends with a checkbox PR. Tests are additive — every phase's smoke tests must still pass after later phases land.

Migrating from v1.x

The v1 line was a separate pure-Python implementation. v2 is a hard break (semver-justified by 11.5 months of stack drift). Migration guide ships in docs/migrations/wifi-densepose-1-to-2.md (landing in P5).