title: Module not found in jupyter
body: <p>I want to install scikit-learn. I have successfully installed it but still showing module not found. Then I tried to unistall and reinstall it. But while uninstalling I am getting like this. And I have tried <a href="https://stackoverflow.com/questions/56935698/attributeerror-nonetype-object-has-no-attribute-loader">this</a> but still getting the same error</p>
  <pre><code>    File &quot;C:\ProgramData\Anaconda3\lib\site.py&quot;, line 169, in addpackage
        exec(line)
      File &quot;&lt;string&gt;&quot;, line 1, in &lt;module&gt;
      File &quot;&lt;frozen importlib._bootstrap&gt;&quot;, line 553, in module_from_spec
    AttributeError: 'NoneType' object has no attribute 'loader'
  
  Remainder of file ignored
   
  </code></pre>