urllib.error.URLError: <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:719)>需要加上ssl
import ssl
context = ssl._create_unverified_context()
res=request.urlopen(url,context=context).read()就不会出现此类问题了
原文：http://blog.51cto.com/13694862/2158784