urllib2 绑定ip来访问url，urllib2绑定ipurl,import urlli

urllib2 绑定ip来访问url，urllib2绑定ipurl,import urlli

import urllib2, httplib, socketclass BindableHTTPConnection(httplib.HTTPConnection):    def connect(self):        """Connect to the host and port specified in __init__."""        self.sock = socket.socket()        self.sock.bind((self.source_ip, 0))        if isinstance(self.timeout, float):            self.sock.settimeout(self.timeout)        self.sock.connect((self.host,self.port))def BindableHTTPConnectionFactory(source_ip):    def _get(host, port=None, strict=None, timeout=0):        bhc=BindableHTTPConnection(host, port=port, strict=strict, timeout=timeout)        bhc.source_ip=source_ip        return bhc    return _getclass BindableHTTPHandler(urllib2.HTTPHandler):    def http_open(self, req):        return self.do_open(BindableHTTPConnectionFactory('127.0.0.1'), req)opener = urllib2.build_opener(BindableHTTPHandler)opener.open("http://byrx.net/").read() # Will fail, 127.0.0.1 can't reach byrx.net