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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def base_url(self, value):
 """Set the Base URL property, updating all associated services."""

        logger.debug('StackInABox({0}): Updating URL from {1} to {2}'
                     .format(self.__id, self.__base_url, value))
        self.__base_url = value
        for k, v in six.iteritems(self.services):
            matcher, service = v
            service.base_url = StackInABox.__get_service_url(value,
                                                             service.name)
            logger.debug('StackInABox({0}): Service {1} has url {2}'
                         .format(self.__id, service.name, service.base_url))