没有为logger找到处理程序＆＃34; sklearn.datasets.twenty_newsgroups＆＃34;

Question

我在Python Data Science Essentials一书中运行了第2章的例子。它出现了：

No handlers could be found for logger "sklearn.datasets.twenty_newsgroups"

以下是示例代码：

from sklearn.datasets import fetch_20newsgroups
categories = ['sci.med', 'sci.space']
twenty_sci_news = fetch_20newsgroups(categories=categories)

Answer 1

这是因为twenty_newsgroups数据集未在您的系统上下载。

像这样运行你的示例代码。

import logging
from sklearn.datasets import fetch_20newsgroups
logging.basicConfig() # to show logging message of what is happening behind the scene.

categories = ['sci.med', 'sci.space']
twenty_sci_news = fetch_20newsgroups(categories=categories)

它将显示消息幕后发生的事情。尝试进行相应的调试。

希望它有所帮助！