python利用7z批量解压rar

一开始我使用了rarfile这个库，奈何对于含有密码的压缩包支持不好，在linux上不抛出异常；之后有又尝试了unrar。。比rarfile还费劲。。

所以用了调用系统命令的方法，用7z来解压

通过apt可以安装上7z-full和7z的rar插件

有一个地方要注意 -o 和-p与后面的目录、密码之间没有空格！！

同样可以用这个代码暴力破解压缩包密码

# coding:utf-8 

import os
import zipfile
import traceback
import time
import shutil
import sys,getopt

succeedpath=""
unsucceedpath=""
psds={"2018","123456"}

opts,args=getopt.getopt(sys.argv[1:],"p:")
path=args[0]
for psd in args[1:]:
    psds.add(psd)
#for op,value in opts:
#    if op in ("-p","--password"):
#        psds.add(value)

def mkdirs(dirpath):
    global succeedpath,unsucceedpath
    succeedpath=os.path.join(dirpath,"0.succeed")
    unsucceedpath=os.path.join(dirpath,"0.unsucceed")
    if(not os.path.exists(succeedpath)):
        os.makedirs(succeedpath)
    if(not os.path.exists(unsucceedpath)):
        os.makedirs(unsucceedpath)

def extractdir(path):
    for filename in os.listdir(path):
        filepath=os.path.join(path,filename)
        if(os.path.isfile(filepath)):
            extractfile(filepath)

def extractfile(path):
    (dirpath,filen)=os.path.split(path)
    print("解压"+filen+"     ing...")
    try:
        if(filen.endswith(".rar") or filen.endswith(".zip")):
            path=os.path.abspath(path)
            dirpath=os.path.abspath(dirpath)
            cmd="7z x "+path+" -o"+dirpath+" -y "+" -p"
            state=False
            if(os.system(cmd)==0):
                state=True
            else:
                for psd in psds:
                    cmdp="7z x "+path+" -p"+psd+" -y "+" -o"+dirpath
                    if(os.system(cmdp)==0):
                        state=True
                        break
        else:
            return
        if (state):
            shutil.move(path,succeedpath)
        else:
            shutil.move(path,unsucceedpath)
            with open(os.path.join(dirpath,"errorinfo.txt"),"a+") as errorinfo:
                errorinfo.write("time:"+str(time.time())+"\n")
                errorinfo.write("解压出错！\n可能是密码错误！\n")
    except :
        with open(os.path.join(dirpath,"errorinfo.txt"),"a+") as errorinfo:
            errorinfo.write("time:"+str(time.time())+"\n")
            errorinfo.write("解压出错！\n")
            traceback.print_exc(file=errorinfo)
        shutil.move(path,unsucceedpath)

if(os.path.isdir(path)):
    dirpath=path
    mkdirs(dirpath)
    extractdir(dirpath)
elif(os.path.isfile(path)):
    filepath=path
    (dirpath,filename)=os.path.split(path)
    mkdirs(dirpath)
    extractfile(path)
else:
    print("输入错误！请重新输入！")