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>>>import urllib2
>>>req = urllib2.Request("http://www.google.co.jp")
>>>req.add_header("User-agent", "python")
>>>req.add_header("Pragma", "no-cache")
>>>urlhandler = urllib2.urlopen(req)
>>>import urllib2
>>>req = urllib2.Request("http://www.google.co.jp")
>>>req.add_header("User-agent", "python")
>>>req.add_header("Pragma", "no-cache")
>>>urlhandler = urllib2.urlopen(req)