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mqtt5
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The MQTTv5 protocol for Python written in Rust
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# mqtt5 <a href="https://pypi.org/project/mqtt5"><img alt="PyPI downloads" src="https://img.shields.io/pypi/dm/mqtt5"></a> <a href="https://pypi.org/project/mqtt5"><img alt="PyPI version" src="https://img.shields.io/pypi/v/mqtt5"></a> <a href="https://pypi.org/project/mqtt5"><img alt="Supported Python versions" src="https://img.shields.io/pypi/pyversions/mqtt5"></a> A [sans-I/O](https://sans-io.readthedocs.io/how-to-sans-io.html#what-is-an-i-o-free-protocol-implementation) implementation of the MQTTv5 protocol for Python, written in Rust. Serialization is ~5x faster and deserialization ~20x faster than comparable Python code: <p align="center"> <img src="https://raw.githubusercontent.com/empicano/mqtt5/refs/heads/main/chart.svg" width="650px" /> </p> <p align="center"> <i>Reading/Writing a QoS=1 Publish packet with 256 bytes payload.</i> </p> **Serialize a packet to bytes** ```py import mqtt5 packet = mqtt5.ConnectPacket(client_id="Bulbasaur") data = packet.write() ``` **Deserialize a packet from bytes** ```py import mqtt5 buffer = memoryview(b"\x20\x03\x00\x00\x00") packet, nbytes = mqtt5.read(buffer) ``` ## Key features - Complete MQTTv5 support (user properties, QoS, topic aliases, flow control, ...) - Packets are serialized to minimal wire format - Strict validation on both outgoing and incoming packets - Fully type-annotated ## Installation ```bash pip install mqtt5 ``` Note that mqtt5 implements only the low-level packet de/serialization. If you're looking for a complete MQTT client, check out [aiomqtt](https://github.com/empicano/aiomqtt). ## Documentation See the [stub file](https://github.com/empicano/mqtt5/blob/main/mqtt5/mqtt5.pyi) for an API reference and the [MQTTv5 specification](https://docs.oasis-open.org/mqtt/mqtt/v5.0/os/mqtt-v5.0-os.html) for details about the de/serialization. ## Versioning This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html). ## Changelog See [CHANGELOG.md](https://github.com/empicano/mqtt5/blob/main/CHANGELOG.md), which follows the principles of [Keep a Changelog](https://keepachangelog.com/en/1.1.0/). ## Acknowledgments I've learned a lot from Alex Grönholm's [mqttproto](https://github.com/agronholm/mqttproto), which is an excellent pure-Python MQTTv5 protocol implementation.
