Github user Leemoonsoo commented on the issue:

    https://github.com/apache/zeppelin/pull/1587
  
    Thanks for explain. but i'm little bit confused.
    If you are creating `LivyPySpark3Interpreter` in addition to 
`LivyPySparkInterpreter`, there will be no need to add property 
`zeppelin.livy.kind`.
    
    But by adding a property, `LivyPySparkInterpreter` interpreter can read 
property and change it's behavior which version of python to use, in runtime. 
and no need to create `LivyPySpark3Interpreter`. 
    In this case, to use both python2 and python3 at the same time, user can 
create multiple interpreter settings in the GUI and use them.
    
    I have no strong opinion on any approaches, but at least `python`, 
`pyspark` interpreter handle python version using property instead of having 
separate interpreter class.
    
    @purechoc @zjffdu @prabhjyotsingh @felixcheung What do you think?


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