def pack_bits( longbits ):
    """Crunch a 64-bit int (8 bool bytes) into a bitfield."""
    byte = longbits & (0x0101010101010101)
    byte = (byte | (byte>>7)) & (0x0003000300030003)
    byte = (byte | (byte>>14)) & (0x0000000f0000000f)
    byte = (byte | (byte>>28)) & (0x00000000000000ff)
    return byte
def pack_bits ( longbits ) : byte = longbits & ( 0x0101010101010101 ) byte = ( byte | ( byte >> 7 ) ) & ( 0x0003000300030003 ) byte = ( byte | ( byte >> 14 ) ) & ( 0x0000000f0000000f ) byte = ( byte | ( byte >> 28 ) ) & ( 0x00000000000000ff ) return byte
Crunch a 64-bit int (8 bool bytes) into a bitfield.