from beautifulsoup4 import BeautifulSoup 报错

>>> from beautifulsoup4 import BeautifulSoup
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ModuleNotFoundError: No module named 'beautifulsoup4'

解决方法，重新执行了

pip install beautifulsoup4

参考官网的

https://beautifulsoup.readthedocs.io/zh_CN/latest/#id5

PYTHON严格缩进

https://www.cnblogs.com/helloworldcc/p/9460515.htmli

wiki在如下文件中指定爬虫策略

https://developer.mozilla.org/en-US/docs/Glossary/Robots.txt

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