For the moment, you need to download the latest snapshot of the Ariadne jar
Create a command for a Java 8 exeutable with arguments -jar <your
location of com.ibm.wala.cast.python.ml-0.0.1-SNAPSHOT.jar> --mode stdio
.
In Preferences -> Language Servers, add that command as a server for Python files.
You may see more Ariadne results if you open Python files in the generic editor.