python第三方包unrar可以实现rar文件的解压缩,它以动态库UnRAR为基础,封装而成
1. 下载UnRAR动态库
https://pypi.python.org/pypi/unrar/0.2
windows下可以下载编译好的库包:
http://www.rarlab.com/rar/UnRARDLL.exe
下载解压后能得到一个DLL: UnRAR.dll
2. 安装python包unrar
pip install unrar
windows下先进入python安装目录下的Scripts: 例如“D:Python27Scripts”
然后同样执行: pip install unrar
3. 开始使用unrar
我们在命令行中直接演示使用方法:
将1中解压得到的UnRAR.dll放到当前目录下,否则会找不到DLL的路径
在unrarlib.py("python安装目录Python27Libsite-packagesunrar")中有实现:
if platform.system() == 'Windows': from ctypes.wintypes import HANDLE as WIN_HANDLE HANDLE = WIN_HANDLE UNRARCALLBACK = ctypes.WINFUNCTYPE(ctypes.c_int, ctypes.c_uint, ctypes.c_long, ctypes.c_long, ctypes.c_long) lib_path = lib_path or find_library("unrar.dll") if lib_path is None: #lib_path = 'E:\code\python\unrar\Python27\Lib\site-packages\unrar\UnRAR.dll' lib_path = 'UnRAR.dll' if lib_path: unrarlib = ctypes.WinDLL(lib_path)
>>> from unrar import rarfile >>> rar = rarfile.RarFile('sample.rar') >>> rar.namelist() [u'test_file.txt'] >>> rar.printdir() File Name Modified Size test_file.txt 2013-04-14 08:20:28 17 >>> rar.testrar() >>> info = rar.infolist()[0] >>> info.filename u'test_file.txt' >>> info.file_size 17L >>> info.date_time (2013L, 4L, 14L, 8L, 20L, 28L) >>> rar.extractall()