code: def fetch_url(url, method='GET', user_agent='django-oembed', timeout=SOCKET_TIMEOUT):
      
      sock = httplib2.Http(timeout=timeout)
      request_headers = {
          'User-Agent': user_agent,
          'Accept-Encoding': 'gzip'}
      try:
          headers, raw = sock.request(url, headers=request_headers, method=method)
      except:
          raise OEmbedHTTPException('Error fetching %s' % url)
      return headers, raw
docs: Fetch response headers and data from a URL, raising a generic exception
      for any kind of failure.