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))