bug#70815: [PATCH] ; Enahnce python-tests.el to adapt different python interpreters

[kobarity]

Mattias Engdegård wrote:
> This change caused python-tests failures on macOS. See attached log.
> 
> On this machine which has the standard macOS Python installation, 'python' is 
> python 2, which apparently the tests don't cope very well with. (Have you 
> verified that they do?)
> 
> The tests pass if modified to prefer Python 3:
> 
> @@ -3722,2 +3722,2 @@ python-tests-get-shell-interpreter
> -              (cl-some #'executable-find '("python" "python3" "python2"))))))
> +              (cl-some #'executable-find '("python3" "python" "python2"))))))

All ERTs pass with Python 2 on Linux (Ubuntu 22.04).  So it seems to
me that this is an issue with Python 2 on Mac.  Maybe the workaround
using "tty.setraw(0)" is not working with Python 2 on Mac?  Could you
test if the native completion is working with Python 2?