docs: def _get(url):
      """
      Convert a URL into it's response (a *str*).
      """
      if PYTHON_3:
          req = request.Request(url, headers=HEADER)
          response = request.urlopen(req)
          return response.read().decode('utf-8')
      else:
          req = urllib2.Request(url, headers=HEADER)
          response = urllib2.urlopen(req)
          return response.read()