python requests乱码

https://www.t00ls.net/viewthread.php?tid=60464&extra=&page=1

import chardet
import urllib2
line = "http://126.com/"
html_1 = urllib2.urlopen(line,timeout=120).read()
encoding_dict = chardet.detect(html_1)
print encoding_dict
web_encoding = encoding_dict['encoding']

if web_encoding == 'utf-8' or web_encoding == 'UTF-8':
	html = html_1
else :
	html = html_1.decode('gbk','ignore').encode('utf-8')