kingchenc
8228be7069
Makes the Python binding truly dependency-free (Task 5b). `pip install wickra` now pulls **zero** third-party packages, and `import wickra` never imports NumPy (verified: `"numpy" not in sys.modules` after a batch call).
## What changed
- **Inputs** accept any sequence or buffer of numbers — `array.array`, `memoryview`, a NumPy `ndarray`, or a plain `list` — via `Vec` extraction (newtypes `Buf1`/`BufI64`). `PyBuffer` is unavailable under `abi3-py39`, and `unsafe_code = forbid` rules out a zero-copy slice, so inputs are copied once (negligible vs. compute).
- **Single-output `batch(...)`** returns a stdlib `array.array('d')` (native buffer protocol → `numpy.asarray` zero-copy).
- **Multi-output `batch(...)`** returns a buffer-protocol `Matrix` preserving `.shape`, integer-row and `[i, j]` access, and `.tolist()`.
- **NumPy** moves to an optional extra (`pip install wickra[numpy]`); it is never required.
- Streaming `update(...)` is unchanged; results are numerically identical.
## Implementation
- Trait `IntoPyData` + a `matrix()`/`f64_array()` helper collapse the ~400 batch call sites; `array.array` is built via `bytemuck` (Zlib/MIT/Apache — `cargo deny check licenses` ok).
- Tests migrated to `array.array`/`Matrix` (1-D `.shape`→`len()`, `.dtype`→`.typecode`; numeric comparisons normalize through a `_to_np` helper). The non-contiguous-input test now asserts acceptance instead of rejection.
## Verification (local)
- `pytest bindings/python/tests` — **1991 passed**.
- `cargo fmt --all`, `cargo clippy --workspace --all-targets --all-features -- -D warnings`, `cargo test --workspace --all-features`, `cargo deny check licenses` — all green.
**BREAKING for Python**: batch return types change from NumPy arrays to `array.array`/`Matrix`. Documented in CHANGELOG; ships with the data-layer release bundle (no separate tag).
32 lines
911 B
TOML
32 lines
911 B
TOML
[package]
|
|
name = "wickra-python"
|
|
description = "Python bindings for the Wickra streaming-first technical indicators library."
|
|
version.workspace = true
|
|
authors.workspace = true
|
|
edition.workspace = true
|
|
rust-version.workspace = true
|
|
license.workspace = true
|
|
repository.workspace = true
|
|
homepage.workspace = true
|
|
readme.workspace = true
|
|
keywords.workspace = true
|
|
categories.workspace = true
|
|
publish = false
|
|
|
|
[lib]
|
|
name = "_wickra"
|
|
crate-type = ["cdylib"]
|
|
|
|
[lints]
|
|
workspace = true
|
|
|
|
[dependencies]
|
|
wickra-core = { workspace = true }
|
|
wickra-data = { workspace = true, features = ["live-binance"] }
|
|
pyo3 = { workspace = true }
|
|
# Reinterprets `&[f64]` as bytes when building stdlib `array.array('d')` results,
|
|
# keeping the binding free of any NumPy runtime dependency.
|
|
bytemuck = "1"
|
|
# Drives the async Binance feed behind the blocking, GIL-releasing poll.
|
|
tokio = { version = "1", features = ["rt", "net", "time"] }
|