I know that this question has been adressed and solved poh PhpStorm, by removing the '.' into Settings | Languages & Frameworks | PHP | PHP Includes.
But I could not find the reason in PyCharm.
I noticed that my home directory is marked as library root (which id don't understand why) see image below (the folder hoonakker is my home).
How can I solve that ? PyCharm is scanning my wole computer, and whil doing that is not working.