def __del__(self):
        """Delete the instance and destroy the cache file (if it still
        exists).
        """
        self.cache.close()
        del self.cache
        try:
            os.unlink(self.path)
        except OSError:
            pass
Delete the instance and destroy the cache file (if it still
        exists).
        
recipes/Python/534114_List_wrapper_generators_indexable/recipe-534114.py