old_contents: import httplib
  
  try:
      # Python2
      from xmlrpclib import SafeTransport, Transport, ProtocolError
  except ImportError:
      # Python3
      from xmlrpc.client import SafeTransport, Transport, ProtocolError
  
  
  class CookieTransport(SafeTransport):
      """
      Overides request add cookies from previous request.
      """
  
      def __init__(self):
          Transport.__init__(self)
          self.cookie = None
  
      def make_connection(self, host):
          h = httplib.HTTP(host)
          return h
  
      def request(self, host, handler, request_body, verbose=0):
          # issue XML-RPC request
          h = self.make_connection(host)
  
          if verbose:
              h.set_debuglevel(1)
  
          self.send_request(h, handler, request_body)
          self.send_host(h, host)
          self.send_user_agent(h)
  
          if self.cookie is not None:
              h.putheader("Cookie", self.cookie)
  
          self.send_content(h, request_body)
          errcode, errmsg, headers = h.getreply()
  
          self.cookie = headers.getheader('set-cookie') or self.cookie
  
          if errcode != 200:
              raise ProtocolError(
                  host + handler,
                  errcode, errmsg,
                  headers
              )
  
          # do not print the response body
          self.verbose = False
  
          return self.parse_response(h.getfile())
  
new_contents: try:
      # Python2
      from httplib import HTTPConnection
      from xmlrpclib import SafeTransport, Transport, ProtocolError
  except ImportError:
      # Python3
      from http.client import HTTPConnection
      from xmlrpc.client import SafeTransport, Transport, ProtocolError
  
  
  class CookieTransport(SafeTransport):
      """
      Overides request add cookies from previous request.
      """
  
      def __init__(self):
          Transport.__init__(self)
          self.cookie = None
  
      def make_connection(self, host):
          h = HTTPConnection(host)
          return h
  
      def request(self, host, handler, request_body, verbose=0):
          # issue XML-RPC request
          h = self.make_connection(host)
  
          if verbose:
              h.set_debuglevel(1)
  
          self.send_request(h, handler, request_body)
          self.send_host(h, host)
          self.send_user_agent(h)
  
          if self.cookie is not None:
              h.putheader("Cookie", self.cookie)
  
          self.send_content(h, request_body)
          errcode, errmsg, headers = h.getreply()
  
          self.cookie = headers.getheader('set-cookie') or self.cookie
  
          if errcode != 200:
              raise ProtocolError(
                  host + handler,
                  errcode, errmsg,
                  headers
              )
  
          # do not print the response body
          self.verbose = False
  
          return self.parse_response(h.getfile())
  
subject: Fix utils (not sure if someone use it...)