title: PyCharm can't find import in same folder
body: <p><a href="https://i.stack.imgur.com/6gRub.png" rel="noreferrer"><img src="https://i.stack.imgur.com/6gRub.png" alt="enter image description here"></a></p>
  
  <p>I'm using PyCharm and I'm importing some constants from another python file in the same directory. The import works at runtime, but I get this annoying red underline on the import statement and also every time I use a constant from the file.</p>
  
  <p>Here's the file hierarchy</p>
  
  <p><a href="https://i.stack.imgur.com/VZik6.png" rel="noreferrer"><img src="https://i.stack.imgur.com/VZik6.png" alt="enter image description here"></a></p>
  
  <p><strong>(Please ignore the red underlining on the folders, they are unrelated to this)</strong></p>
  
  <p>What causes this behaviour and how can I fix it?</p>