Print Git-like diff of arbitrary 2 strings in Python

diff.py

import difflib


def diff(a: str, b: str) -> None:
    line_color = {"+": 32, "-": 31}

    diffs = difflib.ndiff(a.splitlines(keepends=True), b.splitlines(keepends=True))
    diff_list = list(diffs)
    styled: list[str] = []
    for prev, next in zip(diff_list, diff_list[1:] + [""]):
        color = line_color.get(prev[0], 0)
        match prev[0]:
            case " ":
                styled.append(prev)
            case "+" | "-":
                index = [i for i, c in enumerate(next) if c == "^"]
                _prev = list(prev)
                for idx in index:
                    _prev[idx] = f"\x1b[97;{color+10};1m{_prev[idx]}\x1b[0;{color}m"
                styled.append(f'\x1b[{color}m{"".join(_prev)}\x1b[0m')
            case "?":
                continue
    print("".join(styled))

example.ipynb