即使在pip安装pydotplus之后，它仍然说没有名为“ pydotplus”的模块应该怎么做？

Question

from sklearn.externals.six import StringIO  
from IPython.display import Image 
from sklearn.tree import export_graphviz
import pydotplus

ModuleNotFoundError: No module named 'pydotplus'

Answer 1

Since you are using conda, you should use conda installer instead of the pip one. As per documentation :

Installing pydotplus from the conda-forge channel can be achieved by adding conda-forge to your channels with:

conda config --add channels conda-forge

Once the conda-forge channel has been enabled, pydotplus can be installed with:

conda install pydotplus

Answer 2

python -m pip install pydotplus 

Answer 3

For Windows 10:

Try running anaconda prompt as 'administrator', then use:

conda install -c conda-forge pydotplus