Configure Python to SNAP 7.0

Hi, I am familiar with GUI softwares as an end user but not much exposure to code, setup etc.
I tried to follow the below link.
I am unsuccessful and attached is for your reference. Please advise.

Are you sure you are using Python 3.6?


this is currently not supported

The supported versions are Python 2.7, 3.3 to 3.6 64-bit (Linux + Darwin) and both 32-bit and 64-bit (Windows) as well as Anaconda distributions.


A snappy update is planned, but probably not released before SNAP version 9.