Check and return option from section from configuration. Option name is equal to option prefix

		:return: tuple of section name and option prefix

def __option(self):
		""" Check and return option from section from configuration. Option name is equal to option prefix

		:return: tuple of section name and option prefix
		"""
		section = self.section()
		option = self.option_prefix()
		if self.config().has_option(section, option) is False:
			raise NoOptionError(option, section)
		return section, option