title: Python: Discover Unit Tests fails in VS Code
body: <p>I followed <a href="https://code.visualstudio.com/docs/python/unit-testing" rel="nofollow noreferrer">this tutorial</a> to set up unit tests in VS Code for Python:</p>
  
  <p>I have a problem in the section "Test discovery".
  When I execute the command "Python: Discover Unit Tests"
  from the command palette in VS Code,
  absolutely nothing happens.</p>
  
  <p>As shown in the tutorial, I did enable the unit test framework,
  and I created unit test files.
  Using the commands for unit testing from the command palette does not work.
  When I execute my unit test files manually from the command line, it works:</p>
  
  <pre><code>python -m unittest test_my_code.py
  </code></pre>
  
  <p>That means that my code, and the code that tests it, are fine,
  the problem is somewhere in the connection between the VS Code editor
  and unit test, test framework.</p>
  
  <p>Other issues are:</p>
  
  <ul>
  <li>when I open my project in VS Code, in the status bar it says "Discovering Tests", but it keeps going forever, nothing happens</li>
  <li>when I right-click on a test file and I call command for running the unit tests, also nothing happens</li>
  </ul>
  
  <p>As requested, I also attach settings.json as image.</p>
  
  <p><a href="https://i.stack.imgur.com/KiqPt.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/KiqPt.png" alt="enter image description here"></a></p>
  
  <p>Thank you</p>