import StringIO

import gzip

compresseddata = gzip方式压缩的字符串(html)

compressedstream = StringIO.StringIO(compresseddata)

gzipper = gzip.GzipFile(fileobj=compressedstream)

data = gzipper.read() # data就是解压后的数据

 import urllib2

 from StringIO import StringIO

 import gzip

 def loadData(url):

     request = urllib2.Request(url)

     request.add_header('Accept-encoding', 'gzip')

     response = urllib2.urlopen(request)

     if response.info().get('Content-Encoding') == 'gzip':

         print 'gzip enabled'

         buf = StringIO(response.read())

         f = gzip.GzipFile(fileobj=buf)

         data = f.read()

     else:

         data = response.read()

     return data