Install the pmldiku package by running (from the top of the code directory):
pip install -e .
If everything went smooth the package you should now be able to open a REPL and write:
❯ python
Python 3.10.6 (main, Nov 14 2022, 16:10:14) [GCC 11.3.0] on linux
Type "help", "copyright", "credits" or "license"for more information.
>>> import pmldiku
>>> pmldiku
<module 'pmldiku' (<_frozen_importlib_external._NamespaceLoader object at 0x7efe96c17a00>)>