Question

Say I’ve got an integer, 13941412, that I wish to separate into bytes (the number is actually a color in the form 0x00bbggrr). How would you do that? In c, you’d cast the number to a BYTE and then shift the bits. How do you cast to byte in Python?

Answer 1

Use bitwise mathematical operators, the “bytes” are already there:

def int_to_rgb(n):
    b = (n & 0xff0000) >> 16
    g = (n & 0x00ff00) >> 8
    r = (n & 0x0000ff)
    return (r, g, b)