Python无效文字为int（）与基地2

Question

我正在尝试一个简单的隐写python程序。编码的作品，但我得到了错误ValueError：无效文字为int（）与基地2：'0b＃99c1f＃...... 值应该是二进制的，我找不到错误。我使用python 2.7这是代码：

from PIL import Image 
import binascii 
import optparse 


def rgb2hex(r,g,b): 
    return '#{:02x}{:02x}{:02x}'.format(r,g,b) 


def hex2rgb(hexcode): 
    return tuple(map(ord,hexcode[1:].decode('hex'))) 


def str2bin(message): 
    binary = bin(int(binascii.hexlify(message), 16)) 
    return binary[2:] 


def bin2str(binary): 
    message = binascii.unhexlify('%x' %(int('0b' + binary, 2))) 
    return message 


def encode(hexcode, digit): 
    if hexcode[-1] in ('0', '1', '2', '3', '4', '5'): 
     hexcode = hexcode[:-1]+digit 
     return hexcode 
    else: 
     return None 


def decode(hexcode): 
    if(hexcode[-1] in ('0','1')): 
     return hexcode[:-1] 
    else: 
     return None 


def hide(filename, message): 
    img = Image.open(filename) 
    binary = str2bin(message) + '1111111111111110' 
    if img.mode in ('RGBA'): 
     img = img.convert('RGBA') 
     datas = img.getdata() 

     newData = [] 
     digit = 0 
     temp = '' 
     for item in datas: 
      if (digit < len(binary)): 
       newpix = encode(rgb2hex(item[0], item[1], item[2]), binary[digit]) 
       if newpix == None: 
        newData.append(item) 
       else: 
        r,g,b = hex2rgb(newpix) 
        newData.append((r,g,b,255)) 
        digit += 1 

      else: 
       newData.append(item) 

     img.putdata(newData) 
     img.save(filename, "bmp") 
     return "Completed!" 
    return "Incorrect Image mode" 


def retr(filename): 
    img = Image.open(filename) 
    binary = '' 

    if img.mode in ('RGBA'): 
     img = img.convert('RGBA') 
     datas = img.getdata() 

     for item in datas: 
      digit = decode(rgb2hex(item[0], item[1], item[2])) 
      if digit == None: 
       pass 
      else: 
       binary = binary + digit 
       if (binary[-16:] == '1111111111111110'): 
        print "Success" 
        return bin2str(binary[:-16]) 

     return bin2str(binary) 

    return "incorrect image mode" 


def Main(): 

    parser = optparse.OptionParser('usage %prog -e/-d <target file>') 
    parser.add_option('-e', dest='hide', type='string', help='target picture') 
    parser.add_option('-d', dest='retr', type='string', help='target picture') 

    (options, args) = parser.parse_args() 
    if options.hide != None: 
     text = raw_input("Enter a message: ") 
     print hide(options.hide, text) 

    elif options.retr != None: 
     print retr(options.retr) 

    else: 
     print parser.usage 
     exit(0) 


Main() 

Answer 1

此行导致错误：

binary = binary + digit 

在那里，digit是十六进制值的字符串（如#003f7），你是与应该是一个二进制字符串的串联（但事实上是这样的：#003f7#003f7...）。然后，您将该值传递给bin2str()。