def __init__(self, fp):

        self.palette = [(i, i, i) for i in range(256)]

        while True:

            s = fp.readline()

            if not s:
                break
            if s[0:1] == b"#":
                continue
            if len(s) > 100:
                raise SyntaxError("bad palette file")

            v = [int(x) for x in s.split()]
            try:
                [i, r, g, b] = v
            except ValueError:
                [i, r] = v
                g = b = r

            if 0 <= i <= 255:
                self.palette[i] = o8(r) + o8(g) + o8(b)

        self.palette = b"".join(self.palette)