1 import zipfile, os, os.path

     2 

     3 class ZipFileExt(zipfile.ZipFile):

     4     def unzip_into_dir(self, dir):

     5         if not os.path.exists(dir):

     6             os.mkdir(dir, 0777)

     7         for name in self.namelist():

     8             if name.endswith('/'):

     9                 os.mkdir(os.path.join(dir,name))

    10             else:

    11                 outfile = open(os.path.join(dir,name), 'wb')

    12                 outfile.write(self.read(name))

    13                 outfile.close()

    14