如何在Kaggle笔记本中添加包含自定义函数的Python文件？

Question

import sys
sys.path.append('../input/helper')
import helper
helper.get_genre_ratings(ratings, movies, ['Romance', 'Sci-Fi'], ['avg_romance_rating', 'avg_scifi_rating'])

----> 1 genre_ratings = helper.get_genre_ratings(ratings, movies, ['Romance', 'Sci-Fi'], ['avg_romance_rating', 'avg_scifi_rating'])

      2 genre_ratings.head()

AttributeError: module 'helper' has no attribute 'get_genre_ratings'-->