If I create a simple Python project, it all works fine. But I have a older web project with mainly PHP code. It has a Python facet so I can edit a few Python files in the project. IntelliJ can't find the Python libraries.
It underlines all the imports and claims there is "No module named ..." and auto-completion fails.
The Python facet only has one thing to configure, the interpreter, and that is set. Any known fixes for this?