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It is tired to define crawler manually? You always extract the meta data by xpath?

Now you can easily to extract a list of meta data from a page.

See the example of func.py.

$ python func.py

是不是很觉得每个网站提取关键字很慢?是不是每个网站要找xpath提取关键字?

这个库可以动态提取关键字,只需要定义两个网页的关键字,就可以训练爬虫,然后去提取其他网页的关键字。

可以执行

$ python func.py