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python怎么解压压缩的字符串数据

2013-07-28 18:22  江湖么名  阅读(13074)  评论(0)  编辑  收藏  举报

范例1: gzip

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

一个简单的例子

 1 import urllib2
 2 from StringIO import StringIO
 3 import gzip
 4  
 5 def loadData(url):
 6     request = urllib2.Request(url)
 7     request.add_header('Accept-encoding', 'gzip')
 8     response = urllib2.urlopen(request)
 9     if response.info().get('Content-Encoding') == 'gzip':
10         print 'gzip enabled'
11         buf = StringIO(response.read())
12         f = gzip.GzipFile(fileobj=buf)
13         data = f.read()
14     else:
15         data = response.read()
16     return data