This solution does not work, either.
C:\Users\Jiri>iex
Interactive Elixir (1.13.3) - press Ctrl+C to exit (type h() ENTER for help)
iex(1)> path = "C:\\Users\\Jiri\\AppData\\Local\\Microsoft\\WindowsApps\\python3.exe"
"C:\\Users\\Jiri\\AppData\\Local\\Microsoft\\WindowsApps\\python3.exe"
iex(2)> Port.open({:spawn_executable, path}, [:binary, args: ["-V"]])
** (ErlangError) Erlang error: :enoent
erlang.erl:2217: :erlang.open_port({:spawn_executable, "C:\\Users\\Jiri\\AppData\\Local\\Microsoft\\WindowsApps\\python3.exe"}, [:binary, {:args, ["-V"]}])
iex(2)>
