title: Python: import symbolic link of a folder
body: <p>I have a folder A which contains some Python files and __init__.py.</p>
  
  <p>If I copy the whole folder A into some other folder B and create there a file with "import A", it works. But now I remove the folder and move in a symbolic link to the original folder. Now it doesn't work, saying "No module named foo".
  Does anyone know how to use symlink for importing?</p>