code: def __Port_spinBox_set_ui(self):
          
  
          # Adding settings key if it doesn't exists.
          self.__settings.get_key(self.__settings_section, "port").isNull() and \
          self.__settings.set_key(self.__settings_section, "port", self.__port)
  
          port = foundations.common.get_first_item(self.__settings.get_key(self.__settings_section, "port").toInt())
          LOGGER.debug("> Setting '{0}' with value '{1}'.".format("Port_spinBox",
                                                                  port))
          self.Port_spinBox.setValue(port)
          self.__port = port
docs: Sets the **Port_spinBox** Widget.