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).
72 lines
2.2 KiB
TOML
72 lines
2.2 KiB
TOML
[build-system]
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requires = ["maturin>=1.7,<2.0"]
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build-backend = "maturin"
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[project]
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name = "wickra"
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version = "0.9.2"
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description = "Streaming-first technical indicators: incremental, fast, install-free."
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readme = "README.md"
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license = "MIT OR Apache-2.0"
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authors = [{ name = "kingchenc", email = "support@wickra.org" }]
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requires-python = ">=3.9"
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keywords = ["finance", "trading", "indicators", "technical-analysis", "ta-lib"]
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classifiers = [
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"Development Status :: 4 - Beta",
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"Intended Audience :: Financial and Insurance Industry",
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"Programming Language :: Python :: 3",
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"Programming Language :: Python :: 3 :: Only",
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"Programming Language :: Python :: 3.9",
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"Programming Language :: Python :: 3.10",
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"Programming Language :: Python :: 3.11",
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"Programming Language :: Python :: 3.12",
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"Programming Language :: Python :: 3.13",
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"Programming Language :: Rust",
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"Topic :: Office/Business :: Financial :: Investment",
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"Topic :: Scientific/Engineering :: Mathematics",
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]
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# Zero third-party runtime dependencies: batch results are stdlib `array.array`
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# objects (and a buffer-protocol `Matrix` for multi-output indicators), so a plain
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# `pip install wickra` pulls nothing else.
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dependencies = []
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[project.optional-dependencies]
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# Optional NumPy interop. Results expose the buffer protocol, so `numpy.asarray(...)`
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# wraps them zero-copy when NumPy is installed — but it is never required.
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numpy = [
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"numpy>=1.22",
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]
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test = [
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"pytest>=7",
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"numpy>=1.22",
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"hypothesis>=6",
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]
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bench = [
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"pytest-benchmark>=4",
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"TA-Lib; platform_system != 'Windows'",
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"pandas-ta>=0.3.14b",
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"tulipy>=0.4; platform_system != 'Windows'",
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"talipp>=2",
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"finta>=1.3",
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"pandas>=2",
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"numpy>=1.22",
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]
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[project.urls]
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Homepage = "https://github.com/wickra-lib/wickra"
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Documentation = "https://docs.wickra.org"
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Repository = "https://github.com/wickra-lib/wickra"
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Issues = "https://github.com/wickra-lib/wickra/issues"
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[tool.maturin]
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manifest-path = "Cargo.toml"
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python-source = "python"
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module-name = "wickra._wickra"
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features = ["pyo3/extension-module"]
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strip = true
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[tool.pytest.ini_options]
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testpaths = ["tests"]
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addopts = "-ra -q"
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filterwarnings = ["error"]
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