CCLocalLevels.dat Decrypt

gdcrypt.py

import base64, zlib, re

def decrypt(filename):

    with open(filename, 'rb') as rbf:
        dat = rbf.read()

    a = [x^11 for x in dat]
    b = bytearray(a).decode()
    c = b.replace('-','+').replace('_','/')
    d = c.encode()
    e = base64.b64decode(d)
    f = e[10:]
    g = -zlib.MAX_WBITS
    h = zlib.decompress(f, g)
    i = h.decode()
    return i

def decrypt2(levelcipher):
    c = levelcipher.replace('-','+').replace('_','/')
    d = c.encode()
    e = base64.b64decode(d)
    f = e[10:]
    g = -zlib.MAX_WBITS
    h = zlib.decompress(f, g)
    i = h.decode()
    return i

def decrypt3(filename):
    xml = decrypt(filename)
    levelcipher = re.findall('<k>k4</k><s>(.+)</s><k>k5</k>', xml)[0]
    levelstring = decrypt2(levelcipher)
    xml2 = xml.replace(levelcipher, levelstring)
    return xml2

xml = decrypt3('CCLocalLevels.dat')

with open('a.txt', 'wt') as wtf:
    wtf.write(xml)

what