Python sys.path - appending PYTHONPATH

If you do not have the file __init__.py in your core folder, it will not be recognized as a package.

Therefore the solution is to add a file __init__.py in your core folder.

If you have already added the problem may be the absolute path ... the core folder that has absolute path:

1. /var/www/core
2. /var/www/YourProject/core

if the second option you have to do: sys.path.append('/var/www/YourProject')