如何在urllib2请求中获取默认标头？

如果您想查看发送的文字HTTP请求，并因此而看到每个最后一个标头，都与线路上的表示完全相同，那么您可以告诉

urllib2

HTTPHandler

import httplib, urllib2class MyHTTPConnection(httplib.HTTPConnection):    def send(self, s):        print s  # or save them, or whatever!        httplib.HTTPConnection.send(self, s)class MyHTTPHandler(urllib2.HTTPHandler):    def http_open(self, req):        return self.do_open(MyHTTPConnection, req)opener = urllib2.build_opener(MyHTTPHandler)response = opener.open('http://www.google.com/')

运行此代码的结果是：

GET / HTTP/1.1Accept-Encoding: identityHost: www.google.comConnection: closeUser-Agent: Python-urllib/2.6