mokaccino 0.4.1

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About Mokaccino

This is a Python binding for https://crates.io/crates/mokaccino.

Mokaccino is a Percolator.

A Percolator is a component that allows the matching of a stream of documents (for instance representing events) against a set of queries (representing specific interests in events).

Install/Usage

Install via pip compatible tools as usual.

Example Usage (taken from a test):

def test_percolator():
    p = Percolator()
    assert p is not None
    qids = [
        p.add_query(Query.from_kv("name", "sausage")),
        p.add_query(Query.from_kprefix("name", "amaz")),
        p.add_query(Query.from_kgt("price", 12)),
        p.add_query(Query.from_kv("name", "sausage") | Query.from_kgt("price", 12)),
    ]

    assert p.percolate_list(Document()) == []
    assert p.percolate_list(Document().with_value("name", "burger")) == []
    assert p.percolate_list(Document().with_value("name", "sausage")) == [qids[0], qids[3]]
    assert p.percolate_list(Document().with_value("name", "amaz")) == [qids[1]]
    assert p.percolate_list(Document().with_value("name", "amazing")) == [qids[1]]
    assert p.percolate_list(Document().with_value("name", "amazon")) == [qids[1]]
    assert p.percolate_list(Document().with_value("price", "12")) == []
    assert p.percolate_list(Document().with_value("price", "13")) == [qids[2], qids[3]]
    assert p.percolate_list(
        Document().with_value("price", "13").with_value("name", "amazed")
    ) == [qids[1], qids[2], qids[3]]

More extensive documentation should probably be provided, but in the meanwhile, have a look at the unit tests, which cover everything you can do with this:

https://github.com/jeteve/mokaccino_py/tree/main/tests

Development

This uses uv/uvx to handle the python side of things

1. Prepare the venv

uv venv --python 3.13

2. Compile everything using maturin

uvx maturin develop

3. Run some examples or unit tests

uv sync --extra dev
pytest
uv run examples/...

In development, loop through 3 and 2:

uvx maturin develop && pytest

This is developed at https://github.com/jeteve/mokaccino_py