base26 1.0.5

Package implements base26 encoding/decoding algorithm.

base26

This library provides functions for encoding binary data to printable ASCII characters and decoding such encodings back to binary data. The algorithm is Base26.

Base26 encoding takes binary data (a byte array) and converts it into a stream of letters, drawn from a 26-character pool in capital letters, e.g. byte arrays of 0xA5, 0x05, 0x4B = Base26 encoded value of "TDTTKA".

Decoding is the reverse of encoding, taking a string of capital letters and turning it back into a byte array. The Base26 decoding algorithm may add an extra 0 byte at the end of the returned payload. The algorithm should check for this: typically, if the returned payload size is 129 and if it is equal to 0 remove it.

It's similar to Base64 but with a smaller pool of characters.

Base64 = ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/
Base26 = ABCDEFGHIJKLMNOPQRSTUVWXYZ

Development

Install dependencies

python -m pip install pip-tools
pip-compile --extra dev pyproject.toml
pip-sync

Install base26 package in editable mode

python -m pip install -e .

Run tests

pytest tests