manchester-codec 0.3.0

Manchester line encoder/decoder supporting IEEE and Thomas variants.

manchester_codec

Manchester line coding utilities with first-class support for the IEEE 802.3 and G.E. Thomas variants. The library exposes predictable helpers for bit-level and byte-level workflows so it can be embedded inside larger communication stacks or used interactively for quick experiments.

Features

• Encode or decode Manchester symbols with a single function call.
• Supports both IEEE (low→high transition represents 1) and Thomas (high→low represents 1) conventions.
• Helper utilities to convert between bit sequences and byte payloads.
• Fully typed, documented, and covered by tests to make PyPI publishing straightforward.

Installation

pip install manchester_codec

Until the project is uploaded to PyPI you can install it from a local checkout:

pip install .

Usage

from manchester_codec import (
    ManchesterStandard,
    encode_bits,
    decode_bits,
    encode_bytes,
    decode_bytes,
)

data_bits = "10110011"
encoded = encode_bits(data_bits, standard=ManchesterStandard.IEEE)
decoded = decode_bits(encoded, standard="ieee")  # standard can also be a string
assert "".join(str(bit) for bit in decoded) == data_bits

payload = bytes.fromhex("a5")
encoded_bytes = encode_bytes(payload, standard="thomas")
decoded_bytes = decode_bytes(encoded_bytes, standard="thomas")
assert decoded_bytes == payload

Development

python -m venv .venv
source .venv/bin/activate  # or .venv\Scripts\activate on Windows
pip install -e .[dev]
pytest

Additional resources

• Documentation & tutorials: https://github.com/eneserginth/manchester_codec
• Project homepage: https://www.fevaris.com

License

MIT License. See LICENSE for details.