code: def send_response(self, code, message=None):
          
          self.log_request(code)
          if message is None:
              if code in self.responses:
                  message = self.responses[code][0]
              else:
                  message = ''
          if self.request_version != 'HTTP/0.9':
              self.wfile.write("%s %d %s\r\n" %
                               (self.protocol_version, code, message))
              # print (self.protocol_version, code, message)
          self.send_header('Server', self.version_string())
          self.send_header('Date', self.date_time_string())
docs: Send the response header and log the response code.
  
          Also send two standard headers with the server software
          version and the current date.