jsonata-rs 0.1.3

JSONata for Python — Rust port of the jsonata-java reference implementation

jsonata-rs

Python bindings for the Rust port of jsonata-java.

• PyPI distribution name: jsonata-rs — pip install jsonata-rs
• Import name: jsonata — import jsonata
• Requires Python ≥ 3.11; published as a single abi3 wheel per platform (Linux amd64 + arm64, macOS arm64).

import jsonata

expr = jsonata.Jsonata("Account.Order.Product.(Price * Quantity) ~> $sum()")
expr.evaluate(data)            # evaluate against a dict / list / scalar

# variable bindings
jsonata.Jsonata("$x + 1").evaluate(None, {"x": 41})   # -> 42

# one-shot convenience
jsonata.evaluate("a + b", {"a": 2, "b": 3})           # -> 5

# custom functions written in Python
e = jsonata.Jsonata("$greet(name)")
e.register_function("greet", lambda n: f"Hello, {n}!")
e.evaluate({"name": "World"})                          # -> "Hello, World!"

Errors raise jsonata.JsonataError with .code (e.g. "S0201") and .position.

Value mapping

JSONata	Python
number	int (whole) / float
string	str
boolean	bool
null	None
undefined	None
array	list
object	dict

Building

pip install maturin
maturin build --release -m crates/jsonata-py/Cargo.toml   # wheel in target/wheels/
# or for local dev:
maturin develop --release -m crates/jsonata-py/Cargo.toml

CI (.github/workflows/CI.yml) cross-builds wheels for amd64 + arm64 across Linux (manylinux + musllinux) and macOS with PyO3/maturin-action, and publishes to PyPI with pypa/gh-action-pypi-publish (Trusted Publishing) on tag pushes.