@driazati Thank you for reply.
Do you mean that Tracing can handle almost all Python features/libraries except for for/while/if kind flows while Scripting can only handle a subset of Python features (aka TorchScript)? I still suspect there are many Python features that cannot be used with Tracing and therefore the difference between Tracing and Scripting is very small. Could you kindly give me an example where we should use Tracing over Scripting?