import os
if os.system (<CODE>'for %%f in (D:\LOAD\XML\*.*) do D:\LOAD\BIN\gzip.exe -dc %%f > %%f.XML' </CODE> ) == 0 :
print "success"
else:
print " failure "

from zipfile import ZipFile
import os
 
# unzip a file
def unzip(path):
    zfile = zipfile.ZipFile(path)
    for name in zfile.namelist():
        (dirname, filename) = os.path.split(name)
        if filename == '':
            # directory
            if not os.path.exists(dirname):
                os.mkdir(dirname)
        else:
            # file
            fd = open(name, 'w')
            fd.write(zfile.read(name))
            fd.close()
    zfile.close()

import os
def getSubs(dir):
    # get all
    dirs = []
    files = []
    for dirname, dirnames, filenames in os.walk(dir):
        dirs.append(dirname)
        for subdirname in dirnames:
            dirs.append(os.path.join(dirname, subdirname))
        for filename in filenames:
            files.append(os.path.join(dirname, filename))
    return files, dirs

import subprocess as sp
sp.check_call("7z x *.gz")

from zipfile import ZipFile
import os
Arch_files = []
def getSubs(dir):
    for dirname, dirnames, filenames in os.walk(dir): 
        for filename in filenames: 
          Arch_files.append(os.path.join(dirname, filename))
# unzip a file
def unzip(path):
    zfile = zipfile.ZipFile(path)
      for name in zfile.namelist():
        (dirname, filename) = os.path.split(name)
        if filename == '':
            # directory
            if not os.path.exists(dirname):os.mkdir(dirname)
        else:
            # file
            fd = open(name, 'w')
            fd.write(zfile.read(name))
            fd.close()
    zfile.close()
getSubs('D:\tmp_gz\')
for Arch_file in Arch_files: 
  unzip(Arch_file)

  for name in zfile.namelist():

a='"a"'