文件压缩与解析

 1 __author__ = ‘Zechary‘
 2 
 3 import os, os.path
 4 import zipfile
 5 
 6 def zip_dir(dirname, zipname):
 7     filelist = []
 8     if os.path.isfile(dirname):
 9         filelist.append(dirname)
10     else:
11         for root, dirs, files in os.walk(dirname):
12             for name in files:
13                 filelist.append(os.path.join(root, name))
14 
15     zf = zipfile.ZipFile(zipname, "w", zipfile.zlib.DEFLATED)
16     for tar in filelist:
17         zf.write(tar)
18     zf.close()
19 
20 def unzip_file(zipfilename, unziptodir):
21     if not os.path.exists(unziptodir):
22         os.mkdir(unziptodir, 0777)
23     zfobj = zipfile.ZipFile(zipfilename)
24     for name in zfobj.namelist():
25         name = name.replace(‘\\‘, ‘/‘)
26         if name.endswith(‘/‘):
27             os.mkdir(os.path.join(unziptodir, name))
28         else:
29             ext_filename = os.path.join(unziptodir, name)
30             ext_dir = os.path.dirname(ext_filename)
31             if not os.path.exists(ext_dir):
32                 os.mkdir(ext_dir, 0777)
33             outfile = open(ext_filename, ‘wb‘)
34             outfile.write(zfobj.read(name))
35             outfile.close()
36 
37 if __name__ == "__main__":
38     zip_dir(‘D:\pythontest‘, ‘D:\pythontest.zip‘)
39     unzip_file(‘D:\\pythontest.zip‘, ‘D:\\pythontest111‘)