code: def __option(self):
  		
  		section = self.section()
  		option = self.option_prefix()
  		if self.config().has_option(section, option) is False:
  			raise NoOptionError(option, section)
  		return section, option
docs: Check and return option from section from configuration. Option name is equal to option prefix
  
  		:return: tuple of section name and option prefix