python怎么破解压缩包密码

import os

import sys

#zipfile是Python标准库

import zipfile

#尝试导入扩展库unrar，如果没有就临时安装

try:

    from unrar import rarfile

except:

    path = '"'+os.path.dirname(sys.executable)+'\\scripts\\pip" install --upgrade pip'

    os.system(path)

    path = '"'+os.path.dirname(sys.executable)+'\\scripts\\pip" install unrar'

    os.system(path)

    from unrar import rarfile

def decryptRarZipFile(filename):

    #根据文件扩展名，使用不同的库

    if filename.endswith('.zip'):

        fp = zipfile.ZipFile(filename)

    elif filename.endswith('.rar'):

        fp = rarfile.RarFile(filename)

    #解压缩的目标文件夹

    desPath = filename[:-4]

    if not os.path.exists(desPath):

        os.mkdir(desPath)

    #先尝试不用密码解压缩，如果成功则表示压缩文件没有密码

    try:

        fp.extractall(desPath)

        fp.close()

        print('No password')

        return

    #使用密码字典进行暴力破解

    except:

        try:

            fpPwd = open('pwddict.txt')

        except:

            print('No dict file pwddict.txt in current directory.')

            return

        for pwd in fpPwd:

            pwd = pwd.rstrip()

            try:

                if filename.endswith('.zip'):

                    for file in fp.namelist():

                        #对zip文件需要重新编码再解码，避免中文乱码

                        fp.extract(file, path=desPath, pwd=pwd.encode())

                        os.rename(desPath+'\\'+file, desPath+'\\'+file.encode('cp437').decode('gbk'))

                    print('Success! ====>'+pwd)

                    fp.close()

                    break

                elif filename.endswith('.rar'):

                    fp.extractall(path=desPath, pwd=pwd)

                    print('Success! ====>'+pwd)

                    fp.close()

                    break

            except:

                pass

        fpPwd.close()

if __name__ == '__main__':

    filename = sys.argv[1]

    if os.path.isfile(filename) and filename.endswith(('.zip', '.rar')):

        decryptRarZipFile(filename)

    else:

        print('Must be Rar or Zip file')