Introducing Pyronaut
19 hours ago
- Pyronaut is a high-performance Python application platform built on GraalVM and Micronaut, offering AOT compilation, build-time validation, and source code processing.
- It enables Python services to run on the JVM ecosystem with scalable, low-latency performance, achieving 2.6x faster throughput than FastAPI and 6.5x than Flask.
- Pyronaut integrates Python asyncio directly with the Netty event loop, supporting async/await, streaming (SSE, websockets), and Java reactive libraries like Reactor.
- It includes Micronaut Data, allowing build-time SQL query computation, compile-time validation, and support for databases like JDBC, R2DBC, Hibernate, MongoDB, and Azure Cosmos DB.
- The platform fuses Python AST with Java compiler, making Micronaut features (serialization, OpenAPI, Kafka listeners, MCP tools) available in Python with build-time processing.
- Pyronaut offers an agent-friendly CLI with development, testing, and deployment commands, supporting both JVM and GraalVM Crema for optimized execution.
- Applications can be containerized with Docker, with options for peak throughput (JVM) or faster startup (Crema native base image).
- It allows using Python and Java libraries together, with Testcontainers for automatic Docker-based test resources, simplifying full-stack development.
- Performance benchmarks show Pyronaut sustains 35,351 RPS with low latency, and it aims to approach Java-level performance with future GIL removal.
- Pyronaut enables running entire stacks (e.g., Python, React SPA) on a single VM, and also supports running Java code directly, leveraging Micronaut features.
- The project focuses on early error detection through build-time validation, benefiting both human developers and AI coding agents.
- Future developments include a static type checker, direct compilation to JVM bytecode, improved native library support, and GIL removal for higher throughput.
- Pyronaut is open-source under the Commonhaus Foundation and provides extensive documentation and guides for getting started.