On 1/26/2018 8:27 PM, Steven D'Aprano wrote:

On Fri, Jan 26, 2018 at 02:37:14PM +0100, Victor Stinner wrote:

Really? I never required such check in practice. Would you mind to
elaborate your use case?

tcl/tk and Javascript only support UCS-2 (16 bit) Unicode strings.

Since IDLE is a tkinter application, it would be helpful if there were an isbmp function that exposed the existing flag in the string object.