IOError：[Errno 0]在python 2.7

Question

# -*- coding: utf-8 -*-

from urllib2 import Request
import urllib

values = raw_input("keyword : ")
params = urllib.pathname2url(values)
url = "https://search.naver.com/search.naver? 
where=nexearch&sm=top_hty&fbm=0&ie=utf8&query=" + params
print(url)

data = urllib.urlopen(url).read()
print(data)

enter image description here

这是我的代码，我得到了这个错误。我不知道解决这个问题......