chumicro-msgpack¶

Cross-runtime MessagePack serialization for CircuitPython, MicroPython, and CPython.

Encodes Python objects to compact binary bytes and decodes them back. On CircuitPython boards with the native msgpack C module, all functions delegate to the built-in — the pure-Python encoder is never loaded, saving ~700 bytes of heap RAM.

Quick example¶

from chumicro_msgpack import packb, unpackb

settings = {0: "MyNetwork", 1: "secret", 2: True}

data = packb(settings)       # compact binary bytes
print(len(data))             # much smaller than JSON

restored = unpackb(data)
print(restored)              # {0: 'MyNetwork', 1: 'secret', 2: True}

Documentation¶

• User Guide — getting started, usage patterns, size comparison
• API Reference — full API documentation