def log(self):
        """Log current settings."""
        log.info('PyPhi v%s', __about__.__version__)
        if self._loaded_files:
            log.info('Loaded configuration from %s', self._loaded_files)
        else:
            log.info('Using default configuration (no configuration file '
                     'provided)')
        log.info('Current PyPhi configuration:\n %s', str(self))
Log current settings.