python解压zip/rar文件并解决zip解压乱码问题

python解压zip/rar文件并解决zip解压乱码问题

环境：python3.5、windows7
依赖包：zipfile、rarfile、windows下unrar.exe放到C:/Windows下或者linux下安装unrar
功能：自动解压zip、rar文件

编写过程中遇到的问题：
1、zip解压缩乱码问题，修改源码zipfile.py文件:
有两处修改，zip文件会把非u8文件解码成cp437，添加编码再解码成gbk后乱码问题解决；
if zinfo.flag_bits & 0x800:
# UTF-8 filename
fname_str = fname.decode(“utf-8”)
else:
fname_str = fname.decode(“cp437”)
#change by xiao,20190715
fname_str = fname_str.encode(‘cp437’).decode(‘gbk’)

2、windows下rar解压依赖unrar.exe，需要把rar安装的unrar.exe拷贝到C:/Windows下，linux下可通过pip进行安装；

代码如下：

#-*- coding: utf-8 -*-
import os, zipfile, sys
import rarfile
import re

def un_zip(filename):
    """unzip zip file"""
    #print(filename)
    #print(filename.encode('utf-8'))
    try:
        filename = filename.encode('cp437').decode('gbk')
    except:
        filename = filename.encode('utf-8').decode('utf-8')
    zip_file = zipfile.ZipFile(filename, 'r')
    if os.path.isdir(filename + "_process"):
        pass
    else:
        os.mkdir(filename + "_process")
    zip_file.extractall(path=filename+"_process")
    """此方法并不好用，虽然显示正常了，但是解压出现错误
    for name in zip_file.namelist():
        try:
            name = name.encode('cp437').decode('gbk')
        except:
            name = name.encode('utf-8').decode('utf-8')
        if ".rar" in name:
            zip_file.extract(name.encode('gbk'), filename + "_process/")
    """
    zip_file.close()


def un_rar(filename, outdir):
    rf = rarfile.RarFile(filename)
    rf.extractall(outdir)


def scan_dir_files(file_path):
    file_list = []
    for file_path, sub_dirs, filenames in os.walk(file_path):
        if filenames:
            for filename in filenames:
                file_list.append(os.path.join(file_path, filename))
        for sub_dir in sub_dirs:
            scan_dir_files(sub_dir)
    return file_list

if __name__ == '__main__':
    dir = "比赛"
    list = scan_dir_files(dir)
    for file in list:
        un_zip(file)
    list = scan_dir_files(dir)
    for file in list:
        if ".rar" in file:
            dir_rarfile = os.path.dirname(file)
            #dir_rarfile = dir_rarfile.replace('.rar', '')

            un_rar(file, dir_rarfile)