wifi-densepose/python/README.md

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# `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/`](../v2/crates/) and replaces the legacy pure-Python
`wifi-densepose==1.1.0` (released 2025-06-07).
See [ADR-117](../docs/adr/ADR-117-pip-wifi-densepose-modernization.md)
for the full modernization plan.
## Build locally
```bash
# 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:
```bash
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](../docs/migrations/wifi-densepose-1-to-2.md)
(landing in P5).