Mismatch Python Version between RunPythonScript and ScriptEditor

Hi everyone,
i’m currently writing some functions in python language using the Rhino built-in ScriptEditor. The very confusing problem is, that i do get different behavior if i run the code using RunPythonScript from the command line. I tackled it down that the RunPythonScript is using a Python version below 3.3 since it cannot support functions like list.copy() → “Unknown Method”.

I think this mismatch is very inconvenient and did not find any documentation about this?
My goal would be that my Co-Workers can very simply use the scripts by accessing them via RunPythonScript and do not need to go via the ScriptEditor.

Thanks for any help, i hope you can shed some light in here for me.

Actually, I was wrong in my previous post (deleted).
Just add
#! python3
at the top of your script.

ok, thanks a lot for the fast and correct response. It is a bit counterintuitive tho, but a fix that I can easily life with.

cheers