ModuleNotFoundError: No module named sklearn 是怎么回事

ModuleNotFoundError: No module named 'sklearn' 是指在Python代码中引入sklearn库时出现的错误提示。具体原因是由于历史遗留原因，sklearn库已经废弃，现在需要安装的是scikit-learn。

解决这个问题的方法是先使用pip install scikit-learn命令安装scikit-learn库。安装成功后，即可使用import sklearn来引入库，不再报错。

另外，有些情况下可能还需要安装scikit-learn的依赖库，例如Numpy、Scipy、matplotlib。可以使用pip install numpy、pip install scipy、pip install matplotlib来分别安装这些依赖库。

总结来说，ModuleNotFoundError: No module named 'sklearn' 的解决方案是先安装scikit-learn库，然后再执行相关代码即可避免报错。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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