Usually, IronPython is shown to be available through a console:

This console allows for interactive compilation of IronPython through a shell or console host.However, it's also possible to use IronPython to interpret code in a regular Python programming experience - this is known assetting the interpreter.

In order to set the interpreter of a Python project, you first need toinstall IronPython and have the Python development Visual Studio workload installed. This will allow you to createpyproj solution projects with the Python SDK.

Once you've created the project, right click it in Solution Explorer and press theproperties button. You should see a GUI appear inside the editor window that will allow you to set the interpreter to IronPython.