import subprocess cmd = ['7z', 'a', 'Test.7z', 'Test', '-mx9'] sp = subprocess.Popen(cmd, stderr=subprocess.STDOUT, stdout=subprocess.PIPE)
1. 安装rarfile
pip install rarfile
2. 下载 unrar windows 版本文件:
http://www.rarlab.com/rar_add.htm
http://www.rarlab.com/rar/unrarw32.exe
然后执行 unrarw32.exe 解压路径设置为当前工程路径。
3. 在 python 脚本里面测试即可。
try :
f = rarfile.RarFile(local_file)
f.extractall(local_path)
f.close()
except Exception as e:
print 'ERROR: Extract RAR file %s exception:'%local_file, e
但是这样只能使用 rarfile 解压,如果要支持其他格式比如zip或者7z就得用其他工具了。
在 win7 下 python2.7 64位用 pip 安装 zipfile 提示找不到,只能系统调用了,最好的工具是 7zip:
import subprocess cmd = ['7z', 'a', 'Test.7z', 'Test', '-mx9'] sp = subprocess.Popen(cmd, stderr=subprocess.STDOUT, stdout=subprocess.PIPE)
或者使用 pylzma :http://www.joachim-bauch.de/projects/pylzma/
easy_install pylzma
使用封装:
import py7zlib class SevenZFile(object): @classmethod def is_7zfile(cls, filepath): ''' Class method: determine if file path points to a valid 7z archive. ''' is7z = False fp = None try: fp = open(filepath, 'rb') archive = py7zlib.Archive7z(fp) n = len(archive.getnames()) is7z = True finally: if fp: fp.close() return is7z def __init__(self, filepath): fp = open(filepath, 'rb') self.archive = py7zlib.Archive7z(fp) def extractall(self, path): for name in self.archive.getnames(): outfilename = os.path.join(path, name) outdir = os.path.dirname(outfilename) if not os.path.exists(outdir): os.makedirs(outdir) outfile = open(outfilename, 'wb') outfile.write(self.archive.getmember(name).read()) outfile.close()
或者:
# Compress the input file (as a stream) to a file (as a stream) i = open(source_file, 'rb') o = open(compressed_file, 'wb') i.seek(0) s = pylzma.compressfile(i) while True: tmp = s.read(1) if not tmp: break o.write(tmp) o.close() i.close() # Decomrpess the file (as a stream) to a file (as a stream) i = open(compressed_file, 'rb') o = open(decompressed_file, 'wb') s = pylzma.decompressobj() while True: tmp = i.read(1) if not tmp: break o.write(s.decompress(tmp)) o.close() i.close()