python-碰到的问题

1、pandas.read_csv()函数，读取文件数据时，由于分隔符为'::'，弹出如下警告

       警告：ParserWarning: Falling back to the 'python' engine because the 'c' engine does not support regex separators (separators > 1 char and different from '\s+' are interpreted as regex)

       解决方法：增加函数的引擎参数engine='python'，如下：

header = ['user_id', 'item_id', 'rating', 'timestamp']df = pd.read_csv("D:/ratings.dat", sep='::', names=header,engine='python')