Python 找不到记录器的处理程序；sklearn.datasets.twenty“U新闻组”；_Python

Python 找不到记录器的处理程序；sklearn.datasets.twenty“U新闻组”；

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Python 找不到记录器的处理程序；sklearn.datasets.twenty“U新闻组”；,python,Python,我运行了《Python数据科学概要》一书中第2章的示例。看来： No handlers could be found for logger "sklearn.datasets.twenty_newsgroups" 下面是示例代码： from sklearn.datasets import fetch_20newsgroups categories = ['sci.med', 'sci.space'] twenty_sci_news = fetch_20newsgroups(categories

我运行了《Python数据科学概要》一书中第2章的示例。看来：

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

下面是示例代码：

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

这是因为您的系统上没有下载数据集

像这样运行示例代码

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)

它将显示幕后发生的事情。尝试进行相应的调试

希望有帮助