擅长:python、mysql、java
<p>在scrapy 2.3中更改了Itemloader</p>
<p>来自scrapy v.2.3<a href="https://docs.scrapy.org/en/latest/news.html#scrapy-2-3-0-2020-08-04" rel="nofollow noreferrer">release notes</a>:</p>
<blockquote>
<p>The base implementation of item loaders has been moved into a separate
library, <a href="https://itemloaders.readthedocs.io/en/latest/index.html" rel="nofollow noreferrer">itemloaders</a>, allowing usage from outside Scrapy and a
separate release schedule</p>
</blockquote>