title: Python - Doing absolute imports from a subfolder
body: <p>Basically I'm asking the same question as this guy: <a href="https://stackoverflow.com/questions/72852/how-to-do-relative-imports-in-python">How to do relative imports in Python?</a></p>
  
  <p>But no one gave him a correct answer. Given that you are inside a subfolder and you want to go up a directory and then into ANOTHER subfolder, doing what they suggested does not work (as the OP pointed out in his comments to their answers).</p>
  
  <p>I know that you can do this by using sys.path, but I would prefer a cleaner method.</p>
  
  <p>Example:</p>
  
  <pre><code>App
  __init__.py
  Package_A
  --__init__.py
  --Module_A.py
  Package_B
  --__init__.py
  --Module_B.py
  </code></pre>
  
  <p>How would I import Module_A into Module_B?</p>