title: Import error. Can't import kmeans_plusplus
body: <p>I'm trying to replicate an example of a clustering model with scikit-learn:</p>
  <pre><code>import sklearn
  sklearn.__version__
  </code></pre>
  <p>Returns:</p>
  <pre><code>'0.23.2'
  </code></pre>
  <p>And:</p>
  <pre><code>from sklearn.cluster import kmeans_plusplus
  </code></pre>
  <p>Returns the Error message:</p>
  <pre><code>ImportError: cannot import name 'kmeans_plusplus' from 'sklearn.cluster' (C:\Users\sddss\anaconda3\lib\site-packages\sklearn\cluster\__init__.py)
  </code></pre>