python urllib访问网站

from urllib.request import urlopen

from urllib.parse import urlencode

import re

wd='python'

wd=urlencode({"wd":wd})

url="http://www.baidu.com/s?"+wd

page=urlopen(url).read()

content=(page.decode("utf-8")).replace("\n","").replace("\t","")

r=re.compile('href="http:.+">')

data=r.findall(content)

print(data)