pynenc-rustvello 0.1.3

Rust-powered backend plugin for pynenc (via rustvello).

pynenc-rustvello

Rust-powered backend plugin for pynenc distributed task orchestration — via the rustvello engine.

pynenc-rustvello provides high-performance Rust implementations of all pynenc storage interfaces (broker, orchestrator, state backend, trigger store, and client data store) across 6 storage backends, with optional native Rust orchestration for maximum throughput.

pynenc tasks remain Python code executed by pynenc's own runners (ThreadRunner, ProcessRunner, etc.). This plugin replaces only the storage layer — giving you Rust-level performance for state management, message queuing, and orchestration coordination without changing how your tasks run.

For full Rust task execution, use rustvello directly.

Components

Component	Backends	Role
Broker	Mem, SQLite, Redis, Postgres, Mongo, RabbitMQ	Task queue / message delivery
Orchestrator	Mem, SQLite, Redis, Postgres, Mongo (native + delegated)	Status tracking, blocking, recovery
State Backend	Mem, SQLite, Redis, Postgres, Mongo	Invocation state, results, exceptions
Client Data Store	Mem, SQLite, Redis, Postgres, Mongo	Argument caching for large payloads
Trigger	Mem, SQLite, Redis, Postgres, Mongo	Event-driven & cron-based scheduling

Installation

pip install pynenc-rustvello

Requires Python ≥ 3.12, pynenc ≥ 0.1.0, and rustvello ≥ 0.1.0.

Quick Start

pynenc-rustvello registers itself as a pynenc plugin via entry points. Once installed, Rust backends are available through pynenc's builder:

from pynenc import PynencBuilder

# In-memory Rust backend (fastest for testing)
app = PynencBuilder().app_id("my_app").rustvello_mem().build()

# SQLite Rust backend (persistent, zero-config)
app = PynencBuilder().app_id("my_app").rustvello_sqlite().build()

# Redis Rust backend (production)
app = (
    PynencBuilder()
    .app_id("my_app")
    .rustvello_redis(redis_url="redis://localhost:6379")
    .build()
)

@app.task
def add(x: int, y: int) -> int:
    return x + y

result = add(1, 2).result  # 3

Mixing Backends

Combine different storage backends per component:

app = (
    PynencBuilder()
    .app_id("my_app")
    .rustvello_redis_broker(redis_url="redis://localhost:6379")
    .rustvello_postgres_state(postgres_url="postgresql://localhost/mydb")
    .rustvello_postgres_orchestrator(postgres_url="postgresql://localhost/mydb")
    .rustvello_redis_trigger(redis_url="redis://localhost:6379")
    .rustvello_redis_cds(redis_url="redis://localhost:6379")
    .build()
)

Architecture

pynenc-rustvello is a storage plugin — it replaces pynenc's storage layer with Rust-backed implementations while keeping task execution in Python.

┌────────────────────────────────────────────────┐
│                   pynenc app                   │
│                                                │
│  Tasks (Python)  ←→  Runner (Python)           │
│       │                    │                   │
│       ▼                    ▼                   │
│  ┌─────────────────────────────────────────┐   │
│  │     pynenc-rustvello (storage layer)    │   │
│  │  Broker · Orchestrator · State Backend  │   │
│  │  Trigger · Client Data Store            │   │
│  │         (all backed by Rust FFI)        │   │
│  └─────────────────────────────────────────┘   │
└────────────────────────────────────────────────┘

For users who want full Rust task execution (not just storage), use rustvello directly.

Documentation

Full documentation: pynenc-rustvello.readthedocs.io

Ecosystem

Package	Description
pynenc	Core distributed task framework
rustvello	Rust engine powering this plugin
pynenc-redis	Pure-Python Redis backend
pynenc-mongo	Pure-Python MongoDB backend
pynenc-rabbitmq	Pure-Python RabbitMQ broker

Development

# Clone the repository
git clone https://github.com/pynenc/pynenc_rustvello.git
cd pynenc_rustvello

# Install in dev mode
uv sync --all-extras

# Run tests
uv run python -m pytest tests/unit/ -q

# Lint
uv run ruff check pynenc_rustvello/ tests/
uv run ruff format --check pynenc_rustvello/ tests/

License

MIT