title: ModuleNotFoundError: No module named 'mlxtend' despite mlxtend being in pip list
body: <p>I am using Python 3.8.6, with mlxtend version 0.17.3, doing this on jupyter notebook</p>
  <p>I have installed mlxtend in my virtual environment on command prompt with</p>
  <pre><code>pip install mlxtend
  </code></pre>
  <p>and it also shows up on my pip list.</p>
  <p>However when I am trying to import the module within VS Code, and selecting my venv as my python interpreter:</p>
  <pre><code>from mlxtend.feature_selection import SequentialFeatureSelector as SFS
  </code></pre>
  <p>I am facing the error:</p>
  <pre><code>ModuleNotFoundError: No module named 'mlxtend'
  </code></pre>
  <p>Appreciate any help.</p>