complex.py

dct = {}
x, dct[x], x, dct[x], x, dct[x], x, dct[x], x, dct[x], x, dct[x], x, dct[x],\
    x, dct[x], x, dct[x], x, dct[x], x, dct[x], x, dct[x] = \
    '\u0101\u0200\u0201\u0100'\
    '\u0102\u0148\u0103\u0157\u0104\u012c\u0105\u0120\u0106\u0121'\
    '\u0202\u0265\u0203\u026c\u0204\u026f\u0205\u0272\u0206\u0264'


def decode(inp):
    state = '\x01'
    for item in inp:
        val = chr((ord(state) << 8)+ord(item))
        res = dct[val]
        output = chr(ord(res) & 0xff)
        state = chr(ord(res) >> 8)
        if output != '\x00':
            yield output


def do_complex_things():
    A = type('decode', (type, ), {
        '__call__': lambda a, *b, **c: print(''.join(
            globals()[a.__class__.__name__](
                '\x02\x01\x02\x03\x03\x04\x01\x04'
                '\x05\x03\x01\x04\x05\x03\x06\x01\x06'
            )
        ))
    })
    B = A('decode', (object,), {})
    C = type('decode', (B, ), {})
    return C


do_complex_things()()