wled2.py

@dataclass
class RGB:
    r: int
    g: int
    b: int

    def _op(self, other, op):
        return RGB(*(op(s, o) for s, o in zip(self, other)))

    def __sub__(self, other):
        return self._op(other, operator.sub)

    def __add__(self, other):
        return self._op(other, operator.add)

    def __div__(self, other):
        return self._op(other, operator.div)

    def __truediv__(self, other):
        if isinstance(other, int):
            return RGB(*(s / other for s in self))

        return self._op(other, operator.truediv)

    def __iter__(self):
        yield from (self.r, self.g, self.b)

    @property
    def int(self):
        return RGB(*(abs(round(x)) for x in self))

    @property
    def tuple(self):
        return tuple(self)


def gen_colors(src, dst, count):
    src, dst = RGB(*src), RGB(*dst)
    delta = dst - src
    step = delta / (count - 1)
    yield src.int.tuple
    for idx in range(count - 1):
        src += step
        yield src.int.tuple


red = (255, 0, 0)
blue = (0, 0, 255)
colors = list(gen_colors(red, blue, 72))