errorTraceback (most recent call last):
  File "./imagefac/views.py", line 53, in ImageScale
    file = cStringIO.StringIO(urllib2.urlopen(url).read())
  File "/usr/lib64/python2.7/urllib2.py", line 154, in urlopen
    return opener.open(url, data, timeout)
  File "/usr/lib64/python2.7/urllib2.py", line 429, in open
    response = self._open(req, data)
  File "/usr/lib64/python2.7/urllib2.py", line 447, in _open
    '_open', req)
  File "/usr/lib64/python2.7/urllib2.py", line 407, in _call_chain
    result = func(*args)
  File "/usr/lib64/python2.7/urllib2.py", line 1230, in http_open
    return self.do_open(httplib.HTTPConnection, req)
  File "/usr/lib64/python2.7/urllib2.py", line 1200, in do_open
    raise URLError(err)
URLError: <urlopen error [Errno -2] Name or service not known>
 url=http://gao.qdxin.cn/news/Public/uploads/image/20160810/1470822922480206.jpg