import requests
import re

r = requests.get("http://weibo.com/rmrb")
p_nick = re.compile(r"CONFIG\['onick'\]='(.*?)'")
m_nick = re.findall(p_nick,r.text)
if len(m_nick) == 1:
    print m_nick[0]
else:
    print "Not found!"
    
#输出
#Not found!