title: moduleNotFoundError: No module named in visual studio code
body: <p>I am new into python and I copied a folder from someone to try.
  I import a whole folder with subfolders into a workspace from visual studio code.</p>
  <p>the subfolder named algorithm has an <strong>init</strong>.py file which imports all the sub files(for example a file named calculation)
  In the main file I'm trying to run is:
  import algorithm as alg</p>
  <p>all functions are recognized inside visual studio code when using alg. but when I try to run it, it still saying that the module is not found?
  <a href="https://i.stack.imgur.com/asFXi.png" rel="nofollow noreferrer">error message</a></p>
  <p>What did I forget?
  thanks in advance</p>