Possible solution to PYTHONPATH problem

[leander-j]

As of now, before running a study script for the first time (e.g. in a new terminal) the PYTHONPATH variable needs to be set by running export PYTHONPATH="." on Unix or set PYTHONPATH = <path> on Windows. The specified path then gets added to sys.path which Python uses for locating its imports.

One issue is that you need to set this every time you start a new terminal.
Another issue is that "." is a relative path, so if you are working in another directory it does not work any more.

The following code adds the absolute pycopancore path directly to sys.path if added in a study script (that is located in the studies folder).

from os.path import dirname
import sys
sys.path.insert(0, dirname(dirname(__file__)))

Maybe it makes sense to add this to run scripts in general.