On 2015-12-04, Terry Reedy <tjreedy at udel.edu> wrote: > Tk widgets, and hence IDLE windows, will print any character from \u0000 > to \uffff without raising, even if the result is blank or . Higher > codepoints fail, but allowing the entire BMP is better than any Windows > codepage. Well, any bar 1200, 1201, 12000, 12001, 65000, 65001, and 54936.