对Python发送带header的http请求方法详解

简单的header

import urllib2
 
request = urllib2.request('http://example.com/')
request.add_header('user-agent', 'fake-client')
response = urllib2.urlopen(request)
print request.read()

包含较多元素的header

import urllib,urllib2
 
url = 'http://example.com/'
headers = { 'host':'example.com',
          'connection':'keep-alive',
          'cache-control':'max-age=0',
          'accept': 'text/html, */*; q=0.01',
          'x-requested-with': 'xmlhttprequest',
          'user-agent': 'mozilla/5.0 (x11; linux x86_64) applewebkit/537.36 (khtml, like gecko) chrome/41.0.2272.89 safari/537.36',
          'dnt':'1',
          'referer': 'http://example.com/',
          'accept-encoding': 'gzip, deflate, sdch',
          'accept-language': 'zh-cn,zh;q=0.8,ja;q=0.6'
}
data = none
req = urllib2.request(url, data, headers)
response = urllib2.urlopen(req)
html = response.read()

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